Topoplan module

The Topoplan module is available only for 64-bit version.

The Topoplan module is designed to create a digital terrain model and prepare a drawing for the release of topographic plans.

The commands are collected in the Topoplan ribbon tab (and Topoplan menu of the classic interface).

Note

If there is no license for the module, when the commands start a warning message will appear that the commands will not work.

To work, use the meter template nanoCAD_EarthWork_metric.dwt from the list of templates.

The Topoplan module includes support of Civil 3D objects. If you open a drawing containing such objects, then they will be displayed as drawing objects (and not as proxy graphics), display of their properties (for example, on the Properties bar), switching styles, and managing style elements for some objects will be available.

Displaying command settings in the Properties bar

Settings of most module commands are displayed and edited on the Properties bar.

If the Properties toolbar was not open (for example, by CTRL+1), it will be displayed automatically. At this time, the prompt is displayed in the command line:

Change the settings, if necessary, and continue to perform the command by pressing ENTER or selecting Yes in the command line.

If the display of dialog boxes has been disabled by CMDDIA variable, the command options will be output one by one to the command line.

Recalculation of Coordinates

The command recalculates geocoordinates of topoplan objects to another system using EPSG codes.

To recalculate coordinates:

• 1. Run the command.
• 2. In the dialog box that appears, in the Source EPSG and Target EPSG fields, enter the number of the source and target coordinate systems according to the EPGS classification, based on the list on the left side of the window. You can use the search filter. When finished, click Apply.
• 3. Information about the transformation will appear at the bottom of the dialog box. Click OK to confirm the transformation.

The list of coordinate systems for conversion also includes user-created coordinate systems (the Create Coordinate System command). The file with user-created coordinate systems is located at – C:\Users\User_name\AppData\Roaming\ Nanosoft**Ошибка! Неизвестное имя свойства документа.** 25.0\imppointslib\geoids\other.extra.

Note

The NG_REPROJECTION command works only with Topoplan and is not intended for recalculation of Point Clouds.

Geocalculator

Ribbon: Topoplan – Settings > Geocalculator

Menu: Topoplan – Settings > Geocalculator

Toolbar: Topoplan Settings > Geocalculator

Command line: NG_GEOCALC

The command allows you to:

Calculate the parameters of transformation of coordinate systems

spatial 3-dimensional:

• 7 parametric Helmert transformation;
• 9 parametric Helmert transformation;
• Molodensky transformation.

flat rectangular:

• 4 parametric Helmert transformation;
• 5 parametric Helmert transformation.

Recalculation of coordinates

geodetic:

• geographic to flat rectangular Gauss-Kruger or UTM and back;
• geographic and rectangular between 3-dimensional coordinate systems, using the recalculation parameters;

flat arbitrary:

flat rectangular between 2-dimensional coordinate systems, using the recalculation parameters. Calculations are made both for individual points and for files.

Calculating distances and directions on a plane and an ellipsoid

The source data is located in the LIB directory in the program installation directory (Nanosoft**Ошибка! Неизвестное имя свойства документа.** 25.0\UserDataCache\maplib\LIB). Changing the directory name and its location is not allowed.

The Ellipsoid Library is required for the command to work. The ellipsoid data is a text file gt_ellips.csv, containing the name, code, major and minor semi-axes in meters, and the denominator of compression for each ellipsoid. The field values are separated by commas.

A fragment of the file is given below:

NAME,CODE,A,B,RF

Airy 1830 ,AA,6377563.396,6356256.9090,299.324964600 Modified Airy ,AM,6377340.189,6356034.4480,299.324964600

Australian National ,AN,6378160.000,6356774.7190,298.250000000

The file can be edited by the user, but the file name and format should not be changed. Viewing the ellipsoid library is available from the Calculate Transformation Parameters dialog.

The main window is the transaction log window. All calculation results are displayed in the log window.

The geocalculator has a built-in toolbar, which is located under the window title.

• Transformations
• Transformation parameters
• Distances and directions
• Templates
• Clear log
• Save log

Transformations

The coordinates are recalculated using EPSG codes in a dialog box opened from the

Transformations toolbar.

Transformation parameters

The coordinates are recalculated in the dialog box opened from the Transformation Parameters toolbar.

Distances and directions

Distances and directions are recalculated in the dialog box opened from the Distances and directions toolbar.

After selecting an ellipsoid from the library, the following tasks can be solved:

Azimuth and distance applied to a geodetic line.

Forward geodetic task.

Inverse geodetic task.

On a plane.

Forward and inverse geodetic tasks.

Templates

Creating a Coordinate System

Creating a custom coordinate system manually or by importing a PROJ file. The command is designed to set a custom coordinate system and then save it in the database.

There are two ways to create a custom coordinate system.

1. Filling in the dialog fields.

The principle of transformations consists of transforming the source coordinate system to the reference ellipsoid and then transforming it to the WGS84 ellipsoid. This procedure is performed in two stages.

The first stage consists of transforming coordinates from the local system to the standard cartographic projection on which it is based and then to the reference ellipsoid. The fields to fill in are in the left part of the dialog.

The second stage is transforming to WGS84. For this, the Helmert semi-parameter transformation is used. The data is entered into the corresponding fields in the right part of the dialog.

The specified values are transformed to the PROJ library command line standard with a check for data correctness. This eliminates the possibility of erroneous transformations getting into the database. The file with custom coordinate systems is located

C:\Users\User_name\AppData\Roaming\Nanosoft**Ошибка! Неизвестное имя свойства документа.** 25.0\imppointslib\geoids\other.extra.

2. Import from file.

System parameters can be imported from .prj files

These files contain strings in WKT format:

PROJCS["unknown",
GEOGCS["GCS_unknown",
DATUM["D_Unknown_based_on_Bessel_1841_ellipsoid",
SPHEROID["Bessel_1841",6377397.155,299.1528128]],
PRIMEM["Greenwich",0.0],
UNIT["Degree",0.0174532925199433]],
PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting",0.0],
PARAMETER["False_Northing",0.0],
PARAMETER["Central_Meridian",37.5],
PARAMETER["Scale_Factor",1.0],
PARAMETER["Latitude_Of_Origin",55.6666666666667],
UNIT["Meter",1.0]]

As a result of entering data into the coordinate system, it will appear in the nanoCAD database.

Information About Coordinate Systems

Toolbar: Topoplan Settings > Information About Coordinate Systems

Command line: NG_CRS_INFO

Viewing information about all available coordinate systems, including user-created ones.

By selecting a coordinate system from the list of available ones, it is possible to export the selected SC to a file in .prj format, or delete the selected SC.

Creating Geopoints

Geopoint Object

Geopoint is a coordinate geometry oriented (COGO) point, which, in addition to coordinates can contain additional attributes and store styles for displaying labels and markers.

In nanoCAD a geopoint is represented as a separate object. A geopoint and a simple point are different objects: a classic nanoCAD point contains only coordinates.

Geopoints can be imported in the document by the Import Geopoints command.

Geopoints can be created manually by the Create Geopoints/Blocks Manually command or obtained as a result of the work of the Explode the Cloud into Points command.

The properties of a geopoint, like any other objects, can be edited in the Properties bar.

Geopoints have grips, the movement of which is initiated by: moving a geopoint, rotating a marker, moving and rotating a label. The same parameters can be changed in the Properties bar:

The grip for moving the label allows you to expand the geopoint’s label and marker with the formation of a leader with an arrow. To return the label to its previous position, just drag the grip for moving the label onto the grip for moving the geopoint.

It is possible to snap to geopoints in the Node mode.

Geopoints in the Drawing Explorer

To organize points and control how they are displayed in a drawing, ou use collections of named points called point groups.

Geopoints are displayed in the Drawing explorer, each in its own group. The same bar displays sets of geopoint marker styles, geopoint label styles, custom properties of geopoints.

Marker and Label Styles of Geopoints

The marker styles and label styles of geopoints are used to change the display of a geopoint in the drawing field.

You can create new marker styles and label styles of geopoints from the context menu of Drawing Settings - COGOPoints - Marker Style or Label Style in the Drawing Explorer.

Editing geopoint marker styles is started by double-clicking on the desired marker style in the Drawing Explorer. Parameters are configured in the Properties bar.

Editing geopoint label styles is started by double-clicking the desired label style in the Drawing Explorer. Parameters are configured in the Properties bar.

Geopoint Groups

To organize points and control how they are displayed in a drawing, use collections of named points called point groups.

Groups of geopoints can be created by the Create a Group of Geopoints Manually and Create Groups of Geopoints by Original Description commands.

Double clicking on the name of a group of geopoints in the Drawing Explorer starts editing the parameters of the group in the Properties bar:

A group can be assigned with a geopoint marker style and a geopoint label style. When style override is enabled, the group style will be applied to all geopoints in that group. After disabling the style override, the appearance of the marker or label of each point in the group will return to the view specified in the point.

You can rename or delete a group of points using the commands of named group context menu in the Drawing Explorer.

A Description key sets can be applied to a group of geopoints. The command is applied to a group in the drawing explorer using the context menu. More information about description keys in the section Description Key Sets.

User-Defined Properties of Geopoints

You can set user-defined properties for geopoints. If you have additional data that cannot be distributed over existing standard geopoint properties, you can specify your own user-defined properties.

There are four types of user-defined properties available:

• String: allows you to enter text as a value. Is used when you want to enter any alphabetic or numeric characters.
• Integer: allows you to enter only whole numbers without decimals.
• Double: creates a property that allows you to enter numbers with decimal places.

• Boolean: creates a property that allows switching Yes/No (true or false) value.

Geopoint user-defined properties are grouped into user-defined property classification. A classification can be created, filled with user-defined properties, or deleted.

Thus, if you have a survey that contains tree data, you can create a Trees classification. Then create user-defined properties in it related to this classification.

For example:

• Name (String),
• Deciduous (Boolean),
• Elevation (Double).

All user-defined properties of geopoints and their classifications are displayd in the Drawing Explorer (Drawing settings – COGOpoints – User-defined Property Classification).

You can view and edit the values of user-defined geopoint properties of the drawing in the Properties bar.

You can create a new user-defined property classification by selecting Create in the context menu of the Drawing settings – COGO Points – User-defined Property Classification section in the Drawing Explorer.

You can create a new custom property by selecting Create in the context menu of any user-defined property classification in the Drawing Explorer.

You can set a description for a custom property. The use of descriptions will be implemented in one of the next versions.

User-defined properties can also be assigned during the import of geopoints by the Importgeopoints command.

You can delete a classification or a user-defined property by selecting Delete in their own context menu in the Drawing Explorer.

Ceopoints/Blocks Manually

The command creates geopoints or blocks with the location of the point in the drawing, description and mark.

Command prompt:

Select point type or [Blocks/COGOPoints]: Select the type of the object to be created.

For blocks:

Blocks can only be added to a drawing that contains blocks with attributes. In the Properties bar, you can specify the block name, elevation, or point description. The point elevation and description are selected from the attributes of the selected block.

Apply changes [Yes/No/Save/saveDefault] :

Yes – the command will be performed taking into account the changes in settings made by the user in the current session of the command.

No – the command will be performed with the settings that were displayed immediately after the command was launched.

Save – save the settings to the document.

saveDefault – save the settings to the registry.

Specify the location for the new point:

Specify the location of the point in the drawing field, or enter the coordinates of the point.

For geopoints:

Specify the location for the new point:

Enter a description of the point <.>:

Specify the elevation of the point <.>:

Specify the point location in the drawing field or enter the point coordinates.

Enter the point description.

Enter the point elevation mark.

These and other parameters of the created point can be later edited using the Properties bar. For example, you can separately set the rotation angles for a marker and a label. If label and marker styles are missing, then geopoints will be created with the standard style.

Creating Geopoints by Points and Texts

The command creates geopoints by points (circles, blocks) and text objects (Texts, MTexts) found at a specified distance. The maximum distance for text search is specified in the drawing.

Command prompts:

Select objects or [?]: Select objects to be converted to geopoints. Input a new COGO group name Enter a name for a new group of geopoints.

The parameters of the Creating Geopoints by Points and Texts command are configured in the Properties bar.

Creating Geopoints by Interpolation

The command creates new geopoints by interpolation between two points specified in the drawing. Several points can be added sequentially. Pressing the ESC key terminates the command.

The parameters of the Create Geopoints by Interpolation command are configured in the Properties bar.

Create Points on Ends The mode for adding geopoints in the beginning and end of a line.

Command prompts:

Specify the first point or [Settings]:

Specify the second point or [Settings]:

Specify points count <1> or [Settings]:

[Settings]:

Apply changes

[Yes/No/save/saveDefault]

:

Specify the first point of the distance.

Specify the second point of the distance.

Yes – the command will be performed taking into account the settings changes made by the user in the current command session.

No – the command will be performed with the settings that were displayed immediately after the command was launched.

save – saving settings to the document.

saveDefault – saving settings to the register.

Creating Geopoints by Surface

Ribbon: Topoplan – Geopoints > Creating Geopoints by Surface Menu: Topoplan – Geopoints > Creating Geopoints by Surface Toolbar: GeoPoints > Creating Geopoints by Surface Command line: NG_CREATE_POINTS_BY_TIN

The command creates new geopoints at the nodes of surface faces. Geopoints take X, Y, Z coordinates from surface nodes. The geopoint style is assigned by default (Standard).

Command prompts:

Select objects or [?]: Select a surface in the drawing field.

The command line will display the number of points created.

The command has no options.

Creating a Group of Geopoints Manually

Ribbon: Topoplan – Geopoints > Create Groups of Geopoints Manually

Menu: Topoplan – Geopoints > Create Groups of Geopoints Manually

Toolbar: Geopoints > Create Groups of Geopoints Manually

Command line: C3D_CREATE_COGO_POINT_GROUP

Manual creation of a group of geopoints with a name, description, styles, and a prefix of the raw description of the geopoint, which is a criterion for adding points to the group.

The command options are set in the Properties bar:

• Name;
• Description;
• Marker Style (of those existing in the drawing);
• Override Marker Style;
• Label Style (of those existing in the drawing);
• Override Label Style;
• Add with Raw Description prefix the criterion for adding a point to the group. Allows you to add to the group only points with the specified raw description.

Command prompts:

Change parameters in ‘Properties’ window and choose ‘OK’ to create Point Group or ‘Cancel’ to discard any changes <ОK> or [OK/Cancel]:

Yes – a group of geopoints will be created with the current settings.

Cancel – if the settings have been changed, they will not be preserved. A group of geopoints will be created with the settings displayed right after the command starts.

Creating Groups of Geopoints by Original Description

Toolbar: Geopoints > Create Groups of Geopoints by Original Description

Command line: C3D_CREATE_COGO_POINTS_GROUPS_BY_RDESCR

Automatic creation of geopoint groups. All points with the same raw description are combined into one group. As many groups are created as different raw descriptions were found in Geopoints in the

drawing. The names of the created groups coincide with the raw descriptions. If geopoints without description are selected when using the command, they will be added to the created group – Points without description.

The command has no options.

Creating Label Styles of Geopoints

Command line: C3D_CREATE_COGO_LABEL_STYLE

The Label style command allows you to create a geopoint label style and is launched from the context menu of the section Drawing settings - COGOPoints - Label style in the Drawing Explorer. A new style is created by copying the properties of the standard style.

The command allows you to create a geopoint label style by copying an existing style. When copying a label style, all parameters are copied, they are displayed in the Properties bar and can be edited. An index is added to the name by default, you can specify your own name.

Parameters of the label style being created are configured in the Properties bar and are discussed in the Editing Label Styles of Geopoints section. It is not allowed to create two styles with the same name .

Creating Marker Styles of Geopoints

Command line: C3D_CREATE_COGO_MARKER_STYLE

The Marker style command allows you to create a geopoint marker style and is launched from the context menu of the section Drawing settings - COGOPoints - Marker style in the Drawing Explorer. Creates a new style by copying the properties of a standard style.

This command allows you to create a geopoint marker style by copying an existing style. When copying a marker style, all parameters are copied, they are displayed in the Properties bar and can be edited. An index is added to the name by default, you can specify your own name.

The parameters of the marker style being created are configured in the Properties bar and are discussed in the Editing Marker Styles of Geopoints section. It is not allowed to create two styles with the same name.

Editing Label Styles of Geopoints

Editing label styles is started by a double clicking the desired label style of a geopoint in the Drawing Explorer. The options are set in the Properties bar.

Options:

Label Offset

the current offset values of the label. Even if the label was previously offset relative to the marker, the offset values in the X Offset and Y Offset fields will be 0.

To reset the offset and return the label back to the marker’s base point, set the Apply Label Offset parameter to Yes again and apply the changes with zero offset parameter values.

Leader

Command prompts:

Change parameters in ‘Properties’ window and choose ‘OK’ to save changes or ‘Cancel’ to discard any changes <ОK> or [OK/Cancel]:

Yes – all changes to label style properties made in the Properties bar will take effect.

Cancel – all changes to label style properties made in the Properties bar during this session of the command work will be cancelled.

Note

Unused geopoint label styles can be deleted. Once a style is in use, it cannot be deleted.

Editing Marker Styles of Geopoints

Editing marker styles is started by a double clicking the desired marker style of a geopoint in the Drawing Explorer. The options are set in the Properties bar.

Command prompts:

Change parameters in ‘Properties’ window and choose ‘OK’ to save changes or ‘Cancel’ to discard any changes <ОK> or [OK/Cancel]:

Yes – all changes to marker style properties made in the Properties bar will take effect.

Cancel – all changes to marker style properties made in the Properties bar during this session of the command work will be cancelled.

Editing Properties of Geopoint Groups

Double click on the name of the Geopoint group in the Drawing Explorer starts editing its parameters in the Properties bar:

Command prompts:

Change parameters in ‘Properties’ window and choose ‘OK’ to create User-Defined Property or ‘Cancel’ to discard any changes <ОK> or [OK/Cancel]:

OK – all changes of geopoint group properties made in the Properties bar will take effect.

Cancel – all changes of geopoint group properties made in the Properties bar during this session of the command work will be cancelled.

Description Key Sets and Description Keys

Description Key Sets

Sets of description keys are used to create and manage description keys.

Creating a Description Key Set

Command line: __aec_create_desckeyset

You can create a new set of description keys by selecting the Create item in the context menu of the Drawing Explorer – COGOPoints – Description Key Sets in the Drawing Explorer. Next, in the Properties bar, specify the set name and description.

Deleting a Description Key Set

Command line: __aec_delete_desckeyset

You can delete a description key set by selecting Delete from their own context menu in the Drawing Explorer.

Modifying a Description Key Set

Command line: __aec_modify_desckeyset

You can view and edit a description key set by selecting Modify in the context menu of the Drawing Settings – COGOPoints – Name of Description Key Set in the Drawing Explorer. Next, in the Properties bar, specify the set name and description.

Description Keys

Description keys are used to automatically control certain properties of drawing points, such as a point appearance in the drawing, when points are created or imported.

Each drawing description key is defined by its own set of properties.

Code property. Used when searching for a match against a description key. For example, if the code matches the raw point description, the properties defined in that description key will be applied to the

created point. The code may contain wild card characters that enhance the ability to match the description key. For more information, see the Description Key Code section.

Format property. Translates the raw description for a point into a full description. If the Format property is not set, the default value $* will be used. The value $* indicates that the raw and full descriptions are the same.

Styles are selected from preset styles. Layer – from one of those existing in the drawing.

Description keys are stored in a drawing as sets.

Creating a description key

Command line: __aec_create_desckey

You can create a new description key by selecting Create from the context menu of any description key set in the Drawing Settings Drawing Settings section of the Drawing Explorer.

Options:

Code of a Description Key

The Code property is used to define the raw descriptions that match the description key.

A description key consists of a code and a set of additional properties. If the code matches the raw description, the created point is characterized by other properties specified in the description key.

Below there are examples of description key codes:

You can specify a simple string as the description key code, or you can use wildcard characters, such as an asterisk (*), to expand the search options for matching the description key. When trying to create a second key with the code (*), a message appears asking you to enter a different value.

Below there is a table of wildcard characters used in description key codes:

Below there is a table with examples of description key codes containing the most commonly used wildcard characters:

Deleting a description key

Command line: __aec_delete_desckey

You can delete a description key by selecting Delete from its own context menu in the Drawing Explorer.

Modifying a Description Key

Command line: __aec_modify_desckey

You can view and modify the description key settings by selecting Modify in the context menu of the section Drawing Settings – COGOPoints – Name of the Description Key in the Drawing Explorer. Next, in the Properties bar, you can view or modify the settings.

Creating surfaces

Triangular Irregular Networks (TIN) have been used in GIS for many years and are a way to digitally represent surface structure. TIN is a form of vector digital geographic data that is constructed by triangulating a set of vertices (points). The vertices are connected by a number of edges to form a network of triangles. There are various interpolation methods for forming these triangles, such as Delaunay triangulation.

The surfaces created can be represented by such objects as SubDMesh, PolyFaceMesh, a collection of Solids, or a collection of 3D Faces.

The properties of SubDMesh and PolyFaceMesh objects can be edited in the Properties bar. The Title and Description properties are available for editing. When copying an object, its Title and Description fields are also copied to the new object. The Number of vertices and Number of faces properties are informational.

Exploding a Cloud into Points

Command line: NG_EXPLODE_POINTCLOUD

The command allows you to create Points or Geopoints or Blocks objects based on the cloud points for further creation of TIN surface by them (for example, by the Create TIN by Points)command.

Before using the Explode the Cloud into Points command, run the Drawing Units command. In the Insertion scale section, set the value in meters.

If the number of points in the cloud is more than 100000, the cloud will be split into Points objects, even if COGOPoints or Blocks are selected in the parameters.

The command options are set in the Properties toolbar.

Options:

Command prompts:

Yes – split into points will be made with the current settings.

No – if the settings have been changed, they are not saved. Split into points will be made with the settings displayed immediately after starting the command.

Then the Explode dialog box appears.

If a Geopoint object is selected, the layers will be locked.

Options:

When splitting, a group with a name corresponding to the name of the cloud is created. After the cloud is broken down into points, the points take on the color of the cloud (the current cloud display mode).

Note

If a cloud being broken has more than 100000 points, the process may take a long time.

Create TIN by Points

The command creates a TIN (Triangular Irregular Network) surface – an irregular triangulation network by point objects represented by Points, Geopoints or Blocks. The following objects can be created: SubMesh, Polyface mesh, Solids or 3D Faces.

A set of points for creating a mesh can be obtained by importing from third-party formats or from a point cloud with the Explode the Cloud into Points command.

The command options are set on the Properties bar.

Generate normals

Shading parameter. Calculates normals at the mesh vertices, resulting in a smoother mesh appearance in the Precise view. The option is available only if a mesh is selected as the resulting triangulation object.

Generate per vertex colors

Colors the faces and vertices of the mesh according to the points color. The option is available only if a mesh is selected as the resulting triangulation object.

Command prompts:

Apply changes? or [Yes/No]:

Yes – the command will be performed taking into account changes in settings made by the user in the current command session.

No – the command will be performed with the settings that displayed right after the command started.

Save – saving settings to the document.

saveDefault – saving settings to the register.

Importing Elevation Grid

Ribbon: Topoplan – Create TIN > Import elevation grid

Menu: Ground – Creating TIN > Import elevation grid

Toolbar: Creating TIN > Import elevation grid

Command line: NG_IMPORT_ELEVATIONGRID

To create surfaces in the module it is possible to load elevation grid files in PGM, GRD, ASC, DEM formats. As a result of the import, a surface is created in the form of a Mesh object.

After starting the command, a standard file selection dialog box will open. It is necessary to specify the file and click OK. The import dialog will open:

The command options are set in the Properties bar.

Options:

In case the command is performed successfully, the message will appear:

Import evaluation grid done!

Converting to Meshes or 3D Faces

There si a set of commands for changing the type of triangulation model created by such commands as Create TIN by Points. The type of created model can be converted to SubMesh (SubDMesh), Polyface Mesh (PolyFaceMesh) or a set of 3D Faces.

Converting Model to 3D Faces

Ribbon: Topoplan – Create TIN > Converting to 3D Faces

Menu: Ground – Creating TIN > Converting to 3D Faces

Toolbar: Creating TIN > Converting to 3D Faces

Command line: NG_TO_3DFACE

The command converts an object of SubMesh or Polyface mesh type to a set of 3D Face type objects.

Converting Model to SubMesh

Ribbon: Topoplan – Create TIN > Convert to Mesh

Menu: Ground – Create TIN > Convert to Mesh

Toolbar: Create TIN > Convert to Mesh

Command line: NG_TO_SUBDMESH

The command converts a set of 3D Face or Polyface Meshes type objects to one or several Submesh type object.

Command prompts:

Apply changes? or [Yes/No]:

Yes – conversion will be performed with the current settings.

No – if the settings have been changed, they will not be preserved. Conversion will be performed with the settings that displayed right after the command started.

The command options are set in the Properties bar.

Converting Model to Polyface Mesh

Ribbon: Topoplan – Create TIN > Converting to POLYFACEMESH

Menu: Ground – Creating TIN > Converting to POLYFACEMESH

Toolbar: Creating TIN > Converting to POLYFACEMESH

Command line: NG_TO_POLYFACEMESH

The command converts a set of 3D Face or SubMesh type objects to one or several Polyface mesh type objects.

Command prompts:

Apply changes? or [Yes/No]:

Yes – conversion will be performed with the current settings.

No – if the settings have been changed, they will not be preserved. Conversion will be performed with the settings that displayed right after the command started.

The command options are set in the Properties bar.

Converting a Mesh, a Polyface Mesh and 3D Faces into a TIN Surface

Ribbon: Topoplan – Create TIN > Convert a Mesh, a Polyface Mesh and 3D Faces into a TIN Surface

Menu: Topoplan – Create TIN > Convert a Mesh, a Polyface Mesh and 3D Faces into a TIN Surface

Toolbar: Create TIN > Convert a Mesh, a Polyface Mesh and 3D Faces into a TIN Surface

Command line: NG_CONVERT_TO_SURFACETIN

The command converts objects of Mesh, Polyface Mesh and 3D Faces into a TIN Surface object.

Command prompt:

Select objects or [?] Select one or more objects to convert.

The command options are specified in the Properties bar.

Options:

Converting a TIN Surface into a Mesh, a Polyface Mesh and 3D Faces

Ribbon: Topoplan – Create TIN > Convert a TIN Surface into a Mesh, Polyface Mesh and 3D Faces

Menu: Topoplan – Create TIN > Convert a TIN Surface into a Mesh, Polyface Mesh and 3D Faces

Toolbar: Create TIN > Convert a TIN Surface into a Mesh, Polyface Mesh and 3D Faces

Command line: NG_CONVERT_FROM_SURFACETIN

The command converts a TIN Surface into Mesh, Polyface Mesh, 3D Faces objects.

The command options are specified in the Properties bar.

Options:

The convertion to SubMesh is selected.

1670

Break meshes by topology

Method of splitting a mesh into smaller meshes:

• Yes split the mesh into pieces taking into account both the topology (the Maximal normals difference in mesh option) and the restrictions (no more than 32767 faces and vertices).
• No split only based on the restrictions (no more than 32767 faces and vertices).

Maximal normals difference in mesh (degrees)

The maximum permissible deviation of the normal of a mesh element from its average normal (in degrees), at which the element will be considered to belong to this mesh.

The normals of the elements in each part into which a single mesh is split should not differ by more than this value.

The option determines the number of pieces into which the mesh will be split if the Break meshes by topology parameter is set to Yes.

Tolerance for vertexes

The precision parameter within which closely located nodes (vertices) of objects will be merged during conversion.

For example, the vertices of adjacent faces may not coincide within 1e-0.4, but if the Tolerance for vertices parameter is 1e-0.2, such vertices will be merged into one.

The convertion to Polyface Mesh is selected.

Break meshes by topology

Method of splitting a mesh into smaller meshes:

• Yes split the mesh into pieces taking into account both the topology (the Maximal normals difference in mesh option) and the restrictions (no more than 32767 faces and vertices).
• No split only based on the restrictions (no more than 32767 faces and vertices).

Maximal normals difference in mesh (degrees)

The maximum permissible deviation of the normal of a mesh element from its average normal (in degrees), at which the element will be considered to belong to this mesh.

The normals of the elements in each part into which a single mesh is split should not differ by more than this value.

The option determines the number of pieces into which the mesh will be split if the Break meshes by topology parameter is set to Yes.

Tolerance for vertexes

The precision parameter within which closely located nodes (vertices) of objects will be merged during conversion.

For example, the vertices of adjacent faces may not coincide within 1e-0.4, but if the Tolerance for vertices parameter is 1e-0.2, such vertices will be merged into one.

Tools to Work with Surfaces

The surfaces are automatically created according to the Delaunay triangulation rules. Therefore, after creating a TIN, it is often required to edit some areas. Also, in the process of working with relief, sometimes the task of clarifying the surface arises. To do this, the surface editing functionality is used.

To work with surface editing commands, it is recommended to enable shaded visual styles: 3D Flatshaded with edges, 3D Gouraud-shaded with edges.

Flipping an Edge

Ribbon: Topoplan – Modify TIN > Flip Edge

Menu: Ground – Editing TIN > Flip edge

Toolbar: Editing TIN > Flip edge

Command line: NG_MESH_FLIP The command changes the edge position between two triangulation faces in the surface model

(SubMesh or Polyface mesh); it can be performed, for example, to turn edges along the slope crest, road side, etc.

When you run the command, an object snap is enabled, and then you should specify an edge for a flip.

When you hover the cursor over the mesh, two adjacent triangles the position of face between which will be changed are highlighted in red. A click on the face flips the edge.

Surface before flip Surface after flip

The position of several faces can be subsequently changed. Pressing ESC ends the command.

Deleting an Edge

Ribbon: Topoplan – Modify TIN > Delete Edge

Menu: Ground – Editing TIN > Delete Edge

Toolbar: Editing TIN > Delete Edge

Command line: NG_MESH_EDGE_DELETE

Using the command, you can delete edges of Submesh or Polyface mesh surface. Usually, it is used to delete “long” edges along the mesh boundary for correct contouring.

Note

Since a TIN surface has triangle faces, deletion of edges will result in deletion of faces that contained them.

Command prompts:

Specify opposite corner or [Edge]:

Use the frame to select one or more edges to delete. This command mode is enabled by default.

Edge – when this option is selected, the command switches to the mode of sequential (one at a time) specifying edges to be deleted.

Specify edge to delete or [Frame]:

Frame – return to selecting edges with a frame.

Faces that will be deleted when deleting edges

Surface after deleting edges

Several edges can be deleted in succession. Pressing ESC button ends the command.

The command is also used to delete faces inside water reservoirs to exclude the construction of contours along the reservoir.

Faces passing along the water surface Faces are deleted

Adding a Vertex

Ribbon: Topoplan – Modify TIN > Add vertex

Menu: Ground – Editing TIN > Add vertex

Toolbar: Editing TIN > Add vertex

Command line: NG_MESH_VERTEX_ADD

The command adds a new vertex to the existing surface (Submesh or Polyface mesh). The position of the contour lines is also updated if they were built.

To add a vertex:

• 1. Set the Top View.
• 2. Run the command.
• 3. In response to the prompt in the command line, select Submesh or Polyface mesh:

Specify new vertex position

4. Click cursor inside a mesh triangle to add a new vertex in the specified place. A vertex can be added with a reference to some objects. If the point is inside the triangle, then the triangle outline + green point is highlighted. If the point is on the edge, then the triangle outline + edge + red point is highlighted.

Point inside the triangle Point on the edge

5. Select whether to project the point onto the surface or use its actual height after specifying. The anchor point elevation is 0.00. The elevation of the point projected onto the surface is 193.62. Specify vertex elevation <193.62> or [Snap/Project]: Project

Surface before adding a vertex Surface with added vertex

• 6. If a point is specified outside the existing mesh, it can be added to the mesh. The command finds the extension of the plane of the nearest triangle to the specified external point and constructs a projection onto this plane.
• 7. Several vertices can be added in succession. Pressing ESC button ends the command.

The point is projected onto the surface in the view direction, the mark is the Z coordinate of the UCS. If the view direction does not coincide with the Z axis of the UCS, a warning is displayed.

***Warning! The current view direction does not coincide with the Z axis. You may get unexpected results.***

Deleting a Vertex

Ribbon: Topoplan – Modify TIN > Delete Vertex

Menu: Ground – Editing TIN > Delete Vertex

Ribbon: Editing TIN > Delete Vertex

Command line: NG_MESH_VERTEX_DELETE

The command deletes a vertex from an existing surface (Submesh or Polyface mesh) and rebuilds triangulation. The position of the contour lines is also updated if they were built.

The vertex to be deleted is highlighted in red.

To delete a vertex:

• 1. Run the command.
• 2. In response to the prompt in the command line:

Select vertex to delete

Select a vertex. The selected vertex is deleted, and the triangulation mesh is rebuilt.

Select vertex to delete or [Frame]: Frame
Specify first corner or [Vertex]:
Specify opposite corner or [Vertex]:

Select an area with a frame. The selected vertices will be deleted and the triangulation network will be rebuilt.

Surface before deleting the vertex Surface after deleting the vertex

3. Several vertices can be deleted in succession. Pressing ESC button ends the command.

Changing Elevation

Command line: NG_MESH_VERTEX_MOVE_H

The command changes elevation (Z coordinate) of a node of an existing surface (Submesh or Polyface mesh) and rebuilds triangulation.

To change elevation:

• 1. Run the command.
• 2. In response to the prompt in the command line:

Select vertex to change elevation

select a vertex. When you hover the cursor over the mesh node, it is highlighted in red.

3. After specifying the node, the prompt follows:

Elevation of this vertex is 200.36. Specify new elevation.

where 200.36 value is the node elevation. You need to enter a new elevation in the drawing units and press ENTER.

The surface vertex whose elevation should be changed

Surface after changing the vertex elevation

4. Elevations of several vertices can be changed in succession. Pressing ESC button ends the command.

Moving a Point

Command line: NG_MESH_VERTEX_MOVE

The command moves a point in an existing surface (Submesh or Polyface mesh) and rebuilds the triangulation. The movement takes place in the XY plane.

To move a point:

• 1. Run the command.
• 2. In response to the prompt in the command line select a vertex. When you hover the cursor over the mesh node that will be selected for moving, it is highlighted in red.

Select vertex to move

3. Click the cursor to add a new point at the specified location. A point can be added with reference to any objects of the situation

Pick new vertex position

4. Choose whether to project the point onto the surface or use its actual height after specifying.

Osnapped UCS elevation is 193.01. Mesh UCS elevation is 193.57. Specify vertex UCS elevation <193.57> or [Osnapped/Mesh]:

The point’s elevation is the Z coordinate of the UCS. If the view direction is not aligned with the Z axis of the UCS, a warning is displayed.

*** Warning! The current view direction is not aligned with the Z axis. You may get unexpected results.***

Node whose position should be moved The node position has been changed

5. Several vertices can be moved in succession. Pressing ESC button ends the command.

Adding Structure Line

Command line: NG_MESH_STRUCTURAL_CREATE

The command adds a new structure line or a retaining wall to the existing surface.

Structure lines are used to detail relief forms. Such lines can describe lines of curbs, pavement boundaries, gulleys, watersheds, etc. When there are structure lines present, the surface triangulation is forced along the structure line; triangulation edges cannot intersect a structure line. When selecting intersecting objects, only one breakline will be created. Types of objects that can be added as structure lines: lines, polylines, 3D polylines.

The command supports multiple selection.

The command options are set in the Properties bar.

To add a structure line:

• 1. Run the command.
• 2. Set the parameters in the Properties bar. The Structural type should have the Standard value. Press ENTER in response to the prompt in the command line:

Apply changes? or [Yes/No]:

3. In response to the prompt

Select polyline or line to be added as structural line or [?]:

specify a line, polyline or 3d polyline. After selecting an object by the cursor, triangulation will be rebuilt.

Surface before adding a structure line Surface after adding a structure line

To add a Retaining wall structure line:

• 1. Run the command.
• 2. Configure the parameters in the Properties bar. The Structure type should have the Retaining will value. Press ENTER in response to the prompt in the command line:

Apply changes? or [Yes/No]:

3. In response to the prompt

Select polyline or line to be added as a structural line or [?]:

specify a line, polyline or 3d polyline.

4. In response to the prompt

Specify the side of the wall offset:

specify the slope side.

5. If the Set the wall height parameter was set to Separate vertices, then specify the wall height for each line vertex. The current vertex is indicated by a red circle.

The mesh triangulation will be rebuilt. The retaining wall is always vertical in the World coordinate system.

The command supports multiple selection.

Adding an Edge

The command adds a new edge to an existing surface (Mesh or Polyface Mesh) on its boundary.

The edge can only be added on a non-convex boundary (internal or external) so that a new triangular face can be created without breaking the 2.5D mesh.

The position of several edges can be changed sequentially. Pressing the ESC key terminates the command.

Mesh Sealing Holes

Ribbon: Topoplan – Modify TIN > Mesh Seal Holes

Menu: Topoplan – Modify TIN > Mesh Seal Holes

Toolbar: Modify TIN > Mesh Seal Holes

Command line: NG_MESH_SEAL_HOLES

If during the creation of a TIN surface or in the process of its editing surface holes were formed, the command allows filling them with missing faces by specifying an edge on the hole boundary.

Adding a group of Points

Command line: NG_MESH_VERTEX_ADD_BY_POINTS

The command adds a group of points (geopoints, blocks) to the surface.

To add a group of points:

• 1. Select one surface.
  • 2. In response to a prompt on the command line -

Select point type or [Points/COGOPoints/Blocks]: select the type of points.

3. In the Properties bar, configure the command parameters

Adding Drawing Objects

Ribbon: Topoplan – Modify TIN > Adding Drawing Objects

Menu: Topoplan – Modify TIN > Adding Drawing Objects

Toolbar: Modify TIN > Adding Drawing Objects

Command line: NG_MESH_ADD_OBJECTS

The command adds data from selected objects (points, lines, blocks, texts, 3D faces, polygons) to an existing surface. The selected objects are interpreted based on the points of these objects; for each type of object added to the surface, point data related to that type is created. For some object types (lines, 3D faces, and polygons), you can specify whether to preserve the edge configuration of the object when adding the object’s points. The drawing objects are added to the surface as point data.

The command options are set in the Properties bar.

Parameters:

Adding a 3D Slope to a Surface

Menu: Topoplan – Modify TIN > Adding a 3D Slope to a Surface

Toolbar: Modify TIN > Adding a 3D Slope to a Surface

Command line: NG_MESH_ADD_3D_SLOPE

The command adds a 3D slope object to an existing surface.

The command parameters are set in the Properties bar.

Command prompts:

Apply changes [Yes/No/Save/saveDefault] :

Yes – the command will be performed taking into account the changes to the settings made by the user in the current session of the command.

No – the command will be performed with the settings that were displayed immediately after the command was launched.

Save – saving the settings to the document.

saveDefault – saving the settings to the registry.

Mesh Boundary

Ribbon: Topoplan – Modify TIN > Boundary Mesh

Menu: Ground – Editing TIN > Boundary Mesh

Toolbar: Editing TIN > Boundary Mesh

Command line: NG_MESH_BOUNDARY

The command purpose is to remove faces with edges of a certain length, which can prevent from the correct construction of contours.

Preliminary actions

Before running the command it is necessary to define the length of edges. Measurement can be performed by the Distance between points (DIST) command. To do this, run the command with the enabled ENDpoint snap and make measurement. In this case, the obtained distance values will be displayed in the Properties toolbar:

Mesh Boundary

The command options are set on the Properties bar.

Options:

Command prompts:

Apply changes [Yes/No/Save/SaveDefault] :

Yes – mesh boundaring will be performed with the current settings.

No – if settings have been changed, they are not saved. Boundaring will be performed with the settings that were displayed immediately after running the command.

Edge that prevents from the correct construction of contours

Result of the mesh boundaring

Mesh Sealing Holes

Ribbon: Topoplan – Modify TIN > Mesh Seal Holes

Menu: Topoplan – Modify TIN > Mesh Seal Holes

Toolbar: Modify TIN > Mesh Seal Holes

Command line: NG_MESH_SEAL_HOLES

If during the creation of a TIN surface or in the process of its editing surface holes were formed, the command allows filling them with missing faces by specifying an edge on the hole boundary.

Simplifying the Mesh

Ribbon: Topoplan – Modify TIN > Simplifying the Mesh

Menu: Topoplan – Modify TIN > Simplifying Mesh

Toolbar: Modify TIN > Simplifying the Mesh

The Simplifying the Mesh command performs triangulation network optimization. The optimization goal is to obtain a more sparse mesh that retains its form.

The command options are set in the Properties bar.

Options:

Cutting Mesh

Ribbon: Topoplan – Modify TIN > Cut Mesh

Menu: Ground – Editing TIN > Cut Mesh

Toolbar: Editing TIN > Cut Mesh

Command line: NG_MESH_CUT

The command’s purpose is to split a mesh into divisions.

The command options are set on the Properties bar.

Options:

Command prompts:

Apply changes or [Yes/No]:

Yes – cutting will be performed with the current settings.

No – if settings have been changed, they are not saved. Cutting will be performed with the settings that were displayed immediately after running the command.

Classification Mesh

Ribbon: Topoplan – Modify TIN > Classification Mesh

Menu: Ground – Editing TIN > Classification Mesh

Toolbar: Editing TIN > Classification Mesh

Command line: NG_MESH_CLS

The command is used to divide the mesh into classes: for example, if you want to separate the road surface from the lawn. For classification, in the drawing it is necessary to create polylines (necessarily closed), along which the mesh will be cut. After the mesh is classified, the resulting areas can be decomposed into layers to control the display (you can adjust the visibility, color, transparency, etc.)

The command options are set on the Properties bar.

Options:

Command prompts:

Apply changes or [Yes/No]:

Yes – a triangle with the specified edge length will be deleted with the current settings.

No – if settings have been changed, they are not saved. A triangle with the specified edge length will be deleted with the settings that were displayed immediately after running the command.

Mesh before classification Mesh after classification

Combining Surfaces

Ribbon: Topoplan – Modify TIN > Combining surfaces

Menu: Topoplan – Modify TIN > Combining surfaces

Toolbar: Modify TIN > Combining surfaces

Command line: NG_MESH_JOIN

The command combines two surfaces into one by rebuilding triangles on the surface boundary.

The command parameters are set in the Properties bar.

You can combine several surfaces in sequence. Pressing the ESC key terminates the command .

Note

Combining meshes with structural lines will be implemented in the next version.

Tools to Work with Relief Elements

Constructing Contours

Ribbon: Topoplan – Relief> Constructing Contours

Menu: Ground – Elevation > Constructing Contours

Toolbar: Elevation > Constructing Contours

Command line: NG_CREATE_CONTOUR_LINE

Constructing contours. Contour lines are constructed on the base of Submesh or Polyfacemesh objects Contours are divided into several types:

• Intermediate contour lines;
• Index contour lines;
• Supplementary contour lines (semi-contours). Are built on half of section of intermediate contour lines;
• Auxiliary contour lines. Are built with an arbitrary section, the value of which is set by the Interval parameter.

The command options are set on the Properties toolbar.

Common parameters for all contour lines:

Specific options for each type of contour lines:

Command prompt:

Apply changes [Yes/No/Save/saveDefault] :

Yes – contours will be built with the current settings.

No – if settings have been changed, they are not saved. Contours will be built with the settings that were displayed immediately after running the command.

Creating Contour Lines from Objects

Menu: Topoplan – Relief > Creating Contour Lines from Objects

Toolbar: Relief > Creating Contour Lines from Objects

Command line: NG_MARK_AS_CONTOUR

The command converts polylines and 3D polylines into contours.

The command parameters are set in the Properties bar.

Deleting Contour Lines

Ribbon: Topoplan – Relief > Delete Contour Lines

Menu: Topoplan – Relief > Delete Contour Lines

Toolbar: Relief > Delete Contour Lines

Command line: NG_DELETE_CONTOUR_LINE

The command has no settings. When it is launched, all contours, berghashes and contour labels are deleted.

Creating Bergstriches

Ribbon: Topoplan – Relief > Bergstriches

Menu: Ground – Elevation > Bergstriches

Toolbar: Elevation > Bergstriches

Command line: NG_CREATE_BERGSTRICH

The command will create a bergstrich (in the form of block) at the specified location of the contour.

Contours must first be built and the scale of the topographic map selected.

The command parameters are set in the Properties bar.

To create a bergstrich:

• 1. Run the command.
• 2. In response to the prompt in the command line

Specify bergstrich position:

click the left mouse button in the required place on the contour line.

• 3. In the specified place bergstrich will be created in form of block named CONTOUR_BERG.
• 4. Several bergstriches can be created in succession. Pressing ESC button ends the command.

Creating Contour Lines Labels

The command creates a label automatically or at the specified location of the contour.

The command parameters are set in the Properties bar.

Contours must first be built and the scale of the topographic map selected.

To create labels for contour lines:

• 1. Run the command.
• 2. If 3D visual style was set in a drawing, then a warning message appear at the command launch with the proposal to switch to 2D render mode. Agree for the right display of label elements.
• 3. In response to the prompt

Specify position (s) of contour elevation label(s) and press Enter:

click on the contour line with enabled snap to create the Mtext object on the Contour lines layer with the enabled Hide background parameters to hide a contour area in the text insertion point.

It is not necessary to use an object snap: a label will be created on the contour line nearest to the cursor.

4. Several labels can be created in succession. Pressing ESC button ends the command.

2D Slope

Ribbon: Topoplan – Relief > 2D Slope

Menu: Topoplan – Relief > 2D Slope

Toolbar: Relief > 2D Slope

Command line: NG_CREATE_SLOPE

The command makes it possible to build various types of signs for slopes, cliffs, retaining walls:

• Unfortified slope;

• Fortified slope;

• Steep coast with a beach;

• Steep coast without beach;

• Stone retaining walls;

• Wooden retaining walls;

• Ground cliff.

Before starting execution, the command checks the set topographic scale and offers to switch to the 2D Wireframe visual style.

After running the command, set the slope type and characteristics in the Properties bar. The options vary depending on the type of slope and the way the edge is specified.

Options:

Apply changes? or [Yes/No]:

Yes – slope, cliff or retaining wall will be created with the current settings.

No – if the settings have been changed, they will not be saved. The slope will be created with the settings displayed immediately after running the command.

Specify points of slope top or [Peak]:

Specify the first point of the top edge of the slope, or select the Peak option to build the slope from a single top point (hill).

Specify slope peak point:

Specify a slope peak point to build a slope from one top point (hill).

Specify points of slope top or [Undo/ClosePeak]:

Specify the second and subsequent peaks of the slope top.

Undo – undo the entry of the last specified peak.

ClosePeak – close the line of the slope top.

Specify points of bottom slope or

Specify vertices of the slope bottom.

[Undo/Close]: Undo – undo the entry of the last specified vertex. Close – close the line of the slope bottom. Select top slope polyline or [?]: Specify a polyline on the screen to build the top edge of the slope based on it. Select bottom slope polyline or [?]: Specify a polyline on the screen to build the bottom edge of

the slope based on it.

To create a slope, cliff, retaining wall:

• 1. Set the desired topographic scale and switch to the 2D Wireframe visual style.
• 2. Run the command.
• 3. Set the slope type and characteristics on the Properties bar. The options vary depending on the type of slope and how the edge is specified.
• 4. Specify the location of the slope on the drawing. Slope boundaries can be drawn manually, or created from existing drawing lines, depending on the value of the Specify slope edges option. The top and bottom slope edges can be closed lines. If you select the Peak option, you can create a slope from one top point (hill).

In the drawing, the slope is selected as a single set of objects, parts of which can be moved.

3D-Slope

The 3D-Slope command creates a 3D slope from a surface or from existing objects.

After running the command, set the slope type and characteristics in the Properties bar. The options vary depending on the type of slope and the way the edge is specified.

Options:

Apply changes or [Yes/No/saveDef ault]:

Yes – the slope will be created with the current settings.

No – if the settings have been changed, they will not be saved. The slope will be created with the settings displayed immediately after running the command.

saveDefault – save the default settings.

Select polyline/ line/ circle/ arc or [?]:

Select a linear object to define the edge of the slope: polyline, circle, line segment or arc. The polyline can be closed.

Select first polyline/ line/ circle/ arc or [?]:

Select a linear object to specify the first slope edge: polyline, circle, line, or arc. The polyline can be closed.

Select second polyline/ line/ circle/ arc or [?]:

Select a linear object of the same type as the first one to specify the second slope edge.

Specify height of second edge:

If both objects are at the same height relative to the XY plane, you will need to specify the height of the second slope edge.

Select 3Dpolyline:

Specify a 3D polyline to define the top edge of the slope. The polyline should not extend beyond the boundaries of the TIN in the XY plane and lie above the triangulation surface. The 3D polyline can be closed.

Specify direction of slope construction:

Specify the direction of the slope edge bevel relative to the vertical line, i.e. the direction in which the Slope angle will be drawn.

Specify points of slope top or [Undo/Close]:

Specify the vertices of the lower edge of the slope.

Undo – cancel the input of the last specified vertex.

Close – close the line of the lower edge of the slope.

Select polyline of slope bottom or [?]:

Specify a polyline on the screen to build the bottom edge of the slope based on it.

Offset of a 3D-Polyline

Toolbar: Relief > Offset of a 3D-Polyline

Command line: NG_3DPOLYOFFSET

The command draws a 3D polyline similar to the selected one at a specified distance from the original one, with an offset in the XY plane of the current UCS.

Creating a Profile Line

The Create Profile Line command allows you to crate 3d Polyline type object that is located on the mesh and exactly repeat its relief in the specified place. To create an object, it is necessary to have a constructed triangulation mesh.

The profile line is specified by indicating several nodes, with the possibility of automatic closing its ends or extending them to the edges of the mesh. Profile lines can be used to place surface elevations along roads, generate reports, etc.

To create a profile line:

Run the command.

NG_PROFILE_LINE – Create Profile Line

In response to the prompt in the command line

Project profile on or [WCS/UCS/VPort]:

Determine how the profile will be projected:

WCS – onto the XY plane of the world coordinate system.

UCS – onto the XY plane of the user coordinate system (if it is in the drawing).

VPort – onto the viewport plane.

Next, in response to the prompt

Specify profile line node:

Select the parameters by which the profile line will be created.

Search for Key Lines on the Surface

Command line: NG_KEY_LINES

The command searches for key lines such as thalwegs, edges, etc. on the surface.

Parameters:

There are two parameters to set first: Resolution and Isolation Distance. The rest can be left at their default values for the first time, since they do not depend on drawing units.

Resolution

The main parameter. It specifies the detail, such as how large the radius around a point will be to determine if it has a bend. It also defines the step between the points of the resulting polylines.

The parameter is measured in drawing units. Usually the optimal value is 4-5 meters.

If the value of the Resolution parameter is too low (high resolution), the slightest bends in the relief will be detected, but smooth bends, which are more important in terms of the key lines of the relief, may not be detected. So, if you are creating a lot of scattered small lines, the value of the Resolution parameter is most likely too low.

If the parameter value is too high, the opposite picture is obtained: there are few lines and they are very inaccurate. If at the same time the Isolation Distance parameter, which is responsible for the integrity of the lines, is set twice as high as the Resolution parameter value, then the lines will be even smaller and they will fall apart, and if set much more, the lines will stick together where they are not needed. The

example below shows just such a situation: too high a value for the Resolution parameter with a large value for the Isolation Distance parameter.

Isolation distance

The value of this parameter is also specified in drawing units. The Isolation Distance parameter is closely related to the Resolution parameter. It affects how the lines are separated from one another. If the values are too high, the lines will stick together, if the values are too low, they will fall apart. The value of the Isolation Distance parameter should be greater than the value of the Resolution parameter, otherwise nothing will be detected. The optimal value is three to five times greater than the Resolution.

Key Point Percent

The parameter determines how sharp corners are considered bends. It is necessary to increase the parameter value if you need to recognize more bends, and decrease it to reduce their number and take into account only the sharpest corners. This parameter is also related to the Resolution parameter, since a bend is considered to be within the sphere of the radius determined by the resolution. The parameter values vary from 0 to 1. As a rule, the optimal value is 0.075.

Smoothing Pass band and Smoothing Iterations

Smoothing Pass band and Smoothing Iterations are parameters for smoothing lines. It makes sense to change them only if the lines seem to zigzag and they should be smoothed out even more. In this case, you can try to increase the number of iterations. In most cases, you do not need to change the parameter values. Values of the Smoothing Pass band parameter are set in the range from 0 to 2, smaller values correspond to more smoothing.

The example below shows lines obtained from only one iteration. They are practically without smoothing, you can see that they go a little zigzag.

Projection

By default, the resulting lines found do not lie on the mesh surface. To project them vertically onto the relief, you can set the Projection parameter to Vertical.

Projecting a Line onto a Mesh

Toolbar: Elevation > Projecting a Line onto a Mesh

Command line: NG_TO_PROFILE_LINE

The command is designed to project the existing plan elements onto a surface. Segments, polylines or 3D polylines can be selected for projection

Project profile on or [WCS/UCS/Viewport]:

Defines how the polyline will be projected onto the mesh:

WCS – on the XY plane of the world coordinate system.

UCS – on the XY plane of the user coordinate system (if available in the drawing).

Viewport – on the viewport plane.

Select polyline to build profile line or [?]:

Select line, polylines or 3D polylines to project onto the mesh.

Correction of Zero Elevation

Ribbon: Topoplan – Relief > Correction of Zero Elevation

Menu: Ground – Elevation > Correction of Zero Elevation

Toolbar: Elevation > Correction of Zero Elevation

Command line: NG_ADJUST_ZERO_ELEVATIONS

The command changes the elevations (Z coordinate) of a 3D polyline, aligning them in the range from one valid elevation to another using the linear interpolation method.

When running the command, specify 3d polyline in the drawing and press ENTER. The nodes the Z coordinates of which had 0 value, will be corrected.

Note

Zero values of Z coordinates of endpoints of 3d polylines will be corrected for non-zero values of Z coordinates of adjacent points.

Node of 3D polyline that needs correction 3D polyline after correcting elevation

Projecting Objects onto a Surface

Ribbon: Topoplan – Utilities > Project Objects onto a Surface

Menu: Topoplan – Utilities > Project Objects onto a Surface

Toolbar: Topoplan Utilities > Project Objects onto a Surface

Command line: NG_MESH_PROJECT_OBJECTS

The command projects objects - blocks, points, geopoints, texts, Mtexts - onto the surface. The elevation (Z coordinate) of the listed objects changes to the surface elevation. After running the command, specify the Network object in the drawing.

The command options are set in the Properties bar.

Structural Lines on a 3D Slope

Ribbon: Topoplan – Utilities > Structural Lines on a 3D Slope

Menu: Topoplan – Utilities > Structural Lines on a 3D Slope

Toolbar: Topoplan Utilities > Structural Lines on a 3D Slope

Command line: NG_GET_STRUCTURAL_LINES_FROM_3D_SLOPE

The command creates Structural Lines (3D polylines) by 3D slope on the Structural Lines layer. If such a layer does not exist, it is created automatically.

Command prompts:

Select slopes or [?]: Specify slopes on the screen.

Upon the selection is completed, press ENTER.

Extracting the Mesh Boundary

Ribbon: Topoplan – Utilities > Extracting the Mesh Boundary

Menu: Topoplan – Utilities > Extracting the Mesh Boundary

Toolbar: Topoplan Utilities > Extracting the Mesh Boundary

Command line: NG_MESH_GET_BOUNDARY

The command is designed to select external and internal contours of surfaces.

When running the command, select Mesh, Polyface Mesh or TIN Surface in the drawing, specify the settings in the Properties bar and press ENTER. The boundaries will be created as 3D polylines.

This command is needed to select external and internal contours of surfaces. Surfaces can have breaks, respectively have many external and internal contours.

Managing Block Marker Attributes

The command copies the Z coordinate value of a block to its attribute and vice versa, and also swaps the Z coordinate and attribute values.

The command options are set in the Properties bar.

Point Conversion

Menu: Topoplan – Utilities> Point Conversion

Toolbar: Topoplan Utilities > Point Conversion

Command line: NG_CONVERT_POINTS

The command converts point objects: points to geopoints and blocks, blocks to points and geopoints, geopoints to points and blocks.

Options:

Selected objects The section defines which types of point objects selected in the drawing should be converted to another type and where to get values for mark labels.

You can convert geodata simultaneously from all or selectively from the following types of point objects:

• Simple objects of the Point type with mark labels in the form of ordinary text objects;
• Block insertions with single-line attributes as mark labels (for example, conventional signs inserted into the drawing as blocks from the Conventional Signs toolbar);
• COGO Point type objects with a label.

Values for labels can be taken from the increment, attributes of the point itself, or from the text object nearest to the point:

If you select By point, you will need to specify from which attribute of the point the information should be taken. The list will show the existing attributes of the geopoint or block:

If you select Nearest text, you will need to specify the maximum distance from the point to the text object at which this text will still be considered the label of this point:

Data The table typifies and edits the data obtained from point objects: point coordinates by X, Y and Z, numbers, descriptions of points. The column heading displays the data type. In case of incorrect initial data typing, you can drag one header to another, thereby mutually changing them.

You can delete selected cells, rows, or columns. Multiple selection is supported using SHIFT and CTRL. Rows or columns are selected by clicking on the heading. Before manually deleting data, it is recommended to filter it out using filters.

You can also edit the data after double-clicking on a cell.

UPD classification You can add custom properties to points with the button. You should specify the type (integer, float, or string) and name.

A new empty column with the name of the custom parameter appears in the Data table. Drag this column heading onto the heading of the column you want it to match.

Additional options The Additional Options button opens a window where you can change settings for the units (UNITS) with which geopoints should be imported. By default, the current drawing units are used.

Filters You can exclude data from conversion not only manually by deleting cells from the Data table, but also by setting filters. For example, you can exclude from the conversion all points with heights below 52 (column Z) and with a number greater than 350 (Name column).

After adding the filter with the button, in the drop-down list, select the column by which all converted data will be filtered. Then set the value the column data should satisfy. The rest of the lines will be excluded from conversion. Hovering over a filter displays a tooltip with sample values.

It is recommended to set filters only after correct data typing in the Data section.

Drawing objects The section determines what type of objects the received drawing point data should be converted into. And also what signatures the point label will consist of, and what design they will have.

You can import geodata in the form of:

• Ordinary objects of Point type with labels in the form of text objects;
• Blocks (similar to blocks of the Conventional signs toolbar);
• Objects of Geopoint type with a label.

In case of data conversion into a Geopoint object, you should specify a group for them below, in the drop-down list of groups.

The list contains only groups of geopoints that exist in the current drawing. To create a new group, select the Create new option and enter a name for the new group.

If Block was selected, the points will be represented as block insets with single-line attributes to display labels. To do this, a new block will be created in the drawing. The conventional sugn for the point marker will be taken from the block in the drop-down list below.

Only those blocks that already exist in the current drawing are available in the block list. To make the blocks of the Conventional signs bar available, insert at least one symbol into the drawing.

The blocks will be inserted with a scale that takes into account the values of the current topographic scale.

If instead of selecting an existing block in the list, the Create new option was selected, then after the conversion starts, the block editor will open to create a point marker (conventional sign) block. The default is a circle. In the block editor, edit the marker, save the block, and exit the editor to complete the conversion.

You can specify which labels will be displayed in the geopoint label on the drawing: name (geopoint number), elevation (Z-coordinate) and code (point description). Individual layers and color can be assigned to place points and labels. Labels can be assigned with a font. Current profile Allows you to save all the settings made in the dialog to a profile for later use.

Creating Points by Resection

Ribbon: Topoplan – Utilities > Create Points by Resection

Menu: Topoplan – Utilities > Create Points by Resection

Toolbar: Topoplan Utilities > Create Points by Resection

Command line: NG_CREATE_POINT_BY_RESECTION

Create a point at a location calculated from angles measured between known points (3 or 4 points). The points should be specified clockwise.

Creating a point by 3 points

• Specify the location for the point 1.
• Specify the location for the point 2.
• Specify the location for the point 3.
• Specify angle 1-2.
• Specify angle 1-3.

Creating a point by 4 points

• Input angle MSE in angle seconds.
• Specify the location for the point 1.
• Specify the location for the point 2.
• Specify the location for the point 3.
• Specify the location for the point 4.
• Specify angle 1-2.
• Specify angle 1-3.
• Specify angle 1-4.

Texturing and Calculation

Flat Texture Overlay

Ribbon: Topoplan – Texturing and Calculation > Flat Texture Overlay

Menu: Ground – Textures > Flat Texture Overlay

Toolbar: Textures and calculations > Flat Texture Overlay

Command line: NG_ORTHO_TEXTURE

Using this command, you can create a textured surface if the drawing contains a point cloud with the can Color attribute (its display should be enabled) and a surface created from this point cloud. The command allows you to create a photorealistic image of the earth model.

After running the command, specify the Submesh object in the drawing.

The command options are specified on the Properties toolbar.

Options:

Command prompts:

Yes – the texture overlay will be performed with the current settings.

No – if the settings have been changed, they are not saved. The texture overlay will be performed with the settings that were displayed immediately after running the command.

Mesh before the texture overlay Mesh after the texture overlay

After removing the point cloud from the drawing, the surface preserves the texture:

To display the overlay texture, set the Realistic or X-Ray visual style, or a custom style in which texture display is enabled in the face settings.

Raster Texture Mapping

Toolbar: Textures and Calculations > Raster Texture Mapping

Command line: NG_ORTHO_IMAGE

With this command you can create a textured surface. The texture is created by mapping any raster loaded in the drawing on the mesh.

After running the command, in response to the corresponding prompts, select sequentially Submesh and Raster image object in the drawing.

Mesh before texture mapping Mesh after texture mapping

After removing the raste from the drawing, the surface preserves the texture:

To display the overlay texture, set the Realistic or X-Ray visual style, or a custom style in which texture display is enabled in the face settings.

Mesh Coloring by Height

With this command you can create a textured surface with gradient paint. Sets the initial (color of minimum) and final (color of maximum).

After running the command, specify the Mesh object in a drawing.

The command options are specified on the Properties toolbar.

Options:

Double-clicking on the gradient image opens the gradient editor, where you can set your own colors and the location of the color transition points.

Initially, the gradient scale contains only two extreme points, for which you can set a new color by first clicking on any of them.

A new color transition point is set by a double click in the desired area of the gradient. A new point will appear at this location.

It is possible to:

• select a point by clicking on it (after creation, the point is selected automatically). In this case, the dialog displays its exact color and position;

• set a new point color using any color setting method in the dialog, including selecting a color from the screen. In this case, the coloring of the gradient scale will change in accordance with the new color of the point;

• specify a new location of the point on the gradient scale by moving it along the scale or by entering a relative position value. In this case, the coloring of the gradient scale will change in accordance with the new position of the point. The extreme points of the gradient scale cannot be moved;

• delete the point with the Delete button. The coloring of the gradient scale will change according to the remaining number and location of points. The extreme points of the gradient scale cannot be deleted.

Command prompt:

Apply changes or [Yes/No]:

Yes – the mesh will be painted with the current settings.

No – if the settings have been changed, they are not saved. The mesh will be painted with the settings that were displayed immediately after running the command.

To display the completed coloring, set the visual style to Realistic or X-Ray, or a custom style in which texture display is enabled in the face parameters.

Calculating Volumes between Models

Ribbon: Topoplan – Texturing and Calculations > Volume between Models

Menu: Ground – Calculations > Volume between Models

Toolbar: Textures and Calculations > Volume between Models

Command line: NG_VOLUMES

The command allows you to calculate the volume of surfaces: Total, Differenced and Balance. Such calculations are often performed to determine the amount of excavation works.

After running the command, first specify the surface created by design data, and then the actual surface (mesh or polyface mesh).

The command options are specified on the Properties toolbar.

Options:

For all types of calculations, you can customize colors of created models, if Yes is set for the Create models parameter.

Command prompts:

Apply changes or [Yes/No]:

Yes – the volume will be calculated with the current settings.

No – if the settings have been changed, they are not saved. The volume will be calculated with the settings, that were displayed immediately after running the command.

Calculating Surface Volume

Ribbon: Topoplan – Texturing and calculations > Surface Volume

Menu: Ground – Calculations > Surface Volume

Toolbar: Textures and Calculations > Surface Volume

Command line: NG_SURFACE_VOLUME

The command allows to calculate volume of surface or surface area.

The command options are specified on the Properties toolbar.

Options:

Command prompts:

Apply changes or [Yes/No]:

Yes – the volume will be calculated with the current settings.

No – if the settings have been changed, they are not saved. The volume will be calculated with the settings, that were displayed immediately after running the command.

Calculating Area

Ribbon: Topoplan – Texturing and Calculations > Surface Area

Menu: Ground – Calculations > Surface Area

Toolbar: Textures and Calculations > Surface Area

Command line: NG_SQUARE

The command is designed to define the area of a surface patch. The objects for calculation are Submesh or Polyface mesh.

The command parameters are specified on the Properties toolbar.

Parameters:

Command prompts:

Apply changes or [Yes/No]: Yes – the area will be calculated with the current settings.

No – if the settings have been changed, they are not saved. The area will be calculated with the settings, that were displayed immediately after running the command.

Specify closed contour Specify a surface patch in a drawing.

It is the most convenient to specify contour in

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visual styles with filling.

To end, press ENTER.

The result will be displayed in the command line. The total area, area in the projection to XY plane, area in the projection to XZ plane, area in the projection to YZ plane will be calculated. The values of areas are given in the drawing units.

Surface Difference

The Surface Difference command creates a new surface by subtracting one surface from another.

The command has no options.

Forming a Legend

Ribbon: Topoplan – Texturing and Calculation > Formation of a Legend

Menu: Topoplan – Calculations > Formation of a Legend

Toolbar: Texturing and Calculation > Formation of a Legend

Command line: NG_PAINT_ELEVATION_LEGEND

The Formation of a Legend command outputs a legend into the drawing in the form of a dwg table for the selected network, colored by height.

Command prompts:

Select objects or [?]: Select the mesh you want to create a legend for.

Specify first corner Specify the first corner of the table in the drawing.

Specify second corner Specify the second corner of the table in the drawing.

Map Underlay

Command line: MAPVIEW

Inserts map underlay into the current drawing.

In the dialog box that opens, you can configure the required parameters.

The dialog box allows you to load two types of maps: vector or raster. Each type of map is configured on its own tab on the right side of the dialog box

Vector maps

Go to the Vector map tab.

The vector map provider is the OpenStreetMap service.

In the preview window, select the required import area. The map is moved by holding down the left mouse button, and scaled by rotating the wheel.

After selecting the required area, the following settings are required at the bottom of the dialog:

1. Specify the position of the marker relative to which the insertion into the drawing will be performed. To do this, click the marker button at the bottom of the dialog. It is fixed in the pressed state. After that, the marker position on the map is specified by double-clicking the left mouse button. In addition, the position can be specified by manually entering coordinates in the Marker Position section.

• 2. Checking the Fix current marker posiiton box fixes the last set position for all windows.
• 3. Specify the map scale and drawing units.

After setting all the necessary properties, click the OK button and specify the insertion point in the drawing. The marker position will be placed at this point.

Raster maps

There are several services that provide raster maps (Service Provider field): OpenStreetMaps (OSM), Google Maps, Yandex, OpenTopo, MapBox, ArcGis, Bing and Rosreestr.

In addition, some providers propose different types of maps (Map Type field): street maps, satellite, hybrid, relief, topographic.

Import settings are similar to those for vector maps.

Additionally, for raster maps, you can specify the Relief option, which allows you to add terrain heights to the raster. The image becomes a texture stretched over a 3-dimensional terrain model.

To insert raster map underlays by control points, check the By control points box. After clicking the Insert button, another dialog box will open in which you will need to specify the source and resulting control point pairs by which an attempt will be made to insert the raster map.

Stretch the preview areas of the current document (top left) and raster underlay (top right) if they are too small.

• 1. Click the plus button.
• 2. Click in the left preview area of the current document to set the first target point.
• 3. Click in the right preview area of the raster underlay to mark the corresponding source point.
• 4. The coordinates of the first pair of points will appear in the left part of the dialog box.
• 5. Specify at least three more pairs of points. The points will change color from red to green.
• 6. To delete a pair of points, select it in the table and click the minus buttonBy clicking the Test button, you can see the conversion results and the maximum error. To exclude a pair of points from the calculation, it is not necessary to delete it, just uncheck the box next to it.
• 7. If the conversion result is satisfactory, click ОK.

To select an area, Google terrain raster images or MapBox satellite images are used. The model is provided by the MapBox service.

In addition to the standard import settings, the following are available: vertical terrain scale, choice of color palette of heights, shading.

Clip Map Underlay

Ribbon: Topoplan – Maps > Clip Underlay

Menu: Topoplan – Maps > Crop Underlay

Command line: CLIPMAP

Visibility of underlays can be partially limited by a clip contour.

After calling the command, you will need to specify the underlay to which the operation will be applied. Further, points of the clip contour are specified in an interactive mode.

As a result of operation, a clip contour will be created, limiting the visibility of map underlay. The contour can be edited using grips.

Unload Map Underlay

Ribbon: Insert – Maps > Unload Underlay

Ribbon: Topoplan – Maps > Unload Underlay

Menu: Topoplan – Map > Unload Underlay

Command line: UNMAPVIEW

The command unloads the underlay content. Only the underlay contour is displayed.

You can load the underlay content back by the Load Underlay command.

The command works identically to the Map State underlay parameter on the Properties bar.

Load Map Underlay

Command line: REMAPVIEW

The command allows you to load back the underlay content after unloading it by the Unload Underlay command. Only the outline is displayed for the unloaded underlay.

The command works identically to the Map State underlay parameter on the Properties bar.

Importing Geo-linked Rasters

Menu: Topoplan – Maps > Importing Geo-linked Rasters

Toolbar: Maps > Importing Geo-linked Rasters

Command line: NG_IMPORT_RASTERS

The command is intended for batch loading of geo-linked rasters in TIF, ECW formats.

The command has no options.

Import and Export

Importing Geopoints

Ribbon: Topoplan – Import/Export > Import geo-points

Menu: Ground – Import/Export > Import Geo Points

Toolbar: Import/Export > Import Geo Points

Command line: NG_IMPORT_POINTS

The command is designed to import text files from CSV, SDR (Sokkia), XYZ and TXT. In the import dialog you can configure the rules for interpreting and uploading file contents.

Options:

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UPD classification You can add custom properties to points with the button. You should specify the type (integer, float, or string) and name. When setting an integer value in the property classification, a decimal fraction (for example, “1.2”) is imported as 0.

The Rotation property is applicable to all types of objects. For geopoints, this is the rotation of the label, for blocks, this is the rotation of the attribute, for simple points, this is the rotation of the created text.

A new empty column with the name of the custom parameter appears in the Result table. Drag this column heading onto the heading of the column you want it to match.

You can delete unnecessary custom properties with the button.

Upon the points are imported, custom properties can be viewed and edited in the Properties bar just like other properties.

If the table has more than 5 columns, then a new column is not created, but the name of the 6th is overwritten.

Filters You can exclude data from import not only manually by deleting cells from the Result table, but also by setting filters. For example, you can exclude from import all points with heights below 52 (column Z) and with a number greater than 350 (column Name).

After adding the filter with the button, in the drop-down list, select the column by which all imported data will be filtered. Then set the value that the column data should satisfy. The rest of the lines will be excluded from import. Hovering over a filter displays a tooltip with sample values.

It is recommended to set filters only after correct data typing in the Result section.

Result The table specifies the correspondence of the text file columns to certain data types: point X, Y and Z coordinates, numbers, point descriptions. The column heading displays the data type. In case of incorrect initial data typing, you can drag one column to another by the header, mutually changing the data in these columns.

You can delete selected cells, rows, or columns. Multiple selection is supported using SHIFT and CTRL. Rows or columns are selected by clicking on the heading. Before manually deleting data, it is recommended to filter it out using filters.

You can also edit the data after double-clicking on a cell.

Drawing objects

The section determines the form objects the geopoints should be imported from an external file (that is, by what objects they will be represented in the drawing). And also what titles the point label will consist of, and what design they will have.

You can import geodata as:

• Common Point objects with labels as text objects;
• Blocks (like blocks from the Conventional sign bar)
• Objects of the Geopoint type with a label.

In case of importing data in the form of COGOpoint object, specify a group for them in the drop-down list below.

The list contains only groups of geopoints that exist in the current drawing. To create a new group, select the Create new option and enter a name for the new group.

If the Block was selected, the imported points will be presented as block inserts with single-line attributes to display label titles. To do this, a new block will be created in the drawing. The conventional sign for the point marker will be taken from the block in the dropdown list below.

Only the blocks that already exist in the current drawing are available in the list. To make the blocks of the Conventional signs toolbar available, insert at least one conventional sign into the drawing.

When importing, it is possible to select a block for the marker and the main block (marker + attributes). If the main block existing in the drawing is selected, you can add block attributes in the property classification (they will appear as columns in the table for further editing). The block selected for import is analyzed for the presence of attributes. Next, select an attribute that, when imported, will be filled with data from the point file. When adding an attribute, one of the existing parameters should be selected from the proposed ones (attribute, udp, rotation); if a new

The blocks will be inserted with a scale that takes into account the values of the current topographic scale.

If the Create new option is selected instead of selecting an existing block in the list, then after starting import, the block editor will open to create a point marker (conventional sign) block. The default is a circle. In the block editor, edit the marker, save the block, and exit the editor to complete the import.

When choosing to import a block from the list of those existing in the drawing, the selection of such attributes as Name, Elevation, Code is irrelevant – they will not be created additionally. They are grayed out and blocked.

You can mark which attributes will be displayed in the geopoint description on the drawing: geopoint number (name), elevation (Zcoordinate) and code (point description).

You can automatically create a polyline connecting all imported points. For example, if these are points of a road or a building.

To place points and titles, you can assign individual layers and colors. Titles can also be assign with a font.

Labels can be assigned to a style.

When Importing geopoints, standard styles are created. The _All points group is assigned a style that has 3 decimal places by default. For a larger or smaller number of decimal places, you need to create a new group during import and specify the number of decimal places in the Additional options.

You can change the standard style by starting editing it from the Drawing Explorer.

Note

There are limitations for importing files containing very large numbers of lines. Files larger than 10000 lines are not supported. For simple points and blocks – 2000000. To be able to work with the data, split the file into smaller parts.

Exporting Geopoints

The Export Geopoints command allows you to save such objects as geopoints, blocks, simple points in TXT, CSV, SDR exchange formats, with the possibility to search for the text closest to the points and create labels in the drawing. When exporting geopoints to an external file, it is possible to save the label rotation value or other custom attributes. It is possible to select the file encoding.

Options:

Selected objects The section defines what types of drawing objects should be exported as geodata to an external file. And also whether label descriptions should be exported and from which objects.

You can export geodata simultaneously from all or selectively from the following types of objects:

• Common objects of the Simple Point type with label descriptions in the form of ordinary text objects;
• Block insertions with single-line attributes as label descriptions (for example, conventional signs inserted into the drawing as blocks from the Conventional signs bar);
• Objects of COGO Point type with a label.

You can specify whether to generate labels for data from each object type, and where to get the values of each label description.

Values for the Name label can be taken from the increment, attributes of the point itself, or from the text object nearest to the point:

If you select By point, you will need to specify from which point attribute the information should be taken. The list will show the existing attributes of the geopoint or block:

If you select Nearest text, you will need to specify the maximum distance from the point to the text object, at which this text will still be considered the label of this point:

Values for Elevation (Z-coordinate) and Code labels can be taken from the attributes of the point itself or from the text object nearest to the point:

Points data The table performs typing and editing of data obtained from point objects: point coordinates by X, Y and Z, numbers, descriptions of points. The column heading displays the data type. In case of incorrect initial data typing, you can drag one header to another, thereby mutually changing them.

You can delete selected cells, rows, or columns. Multiple selection is supported using SHIFT and CTRL. Rows or columns are selected by clicking on the heading. Before manually deleting data, it is recommended to filter them out using filters.

You can also edit the data after double-clicking on a cell.

UPD (User Defined Properties) classification

You can add custom properties to points with the button. You should specify the type (integer, float, or string) and name.

A new empty column appears in the Points Data table with the name of the custom parameter. Drag this column heading onto the heading of the column you want it to match.

Filters You can exclude data from export not only manually by deleting cells from the Points data table, but also by setting filters. For example, you can exclude from export all points with heights below 52 (Z column) and with a number greater than 350 (Name column).

After adding the filter with the button, in the drop-down list, select the column by which all exported data will be filtered. Then set the value that the column data should satisfy. The rest of the lines will be excluded from the export. Hovering over the filter displays a tooltip with sample values.

It is recommended to set filters only after correct data typing in the Points data section.

Import from LandXML

The command allows you to import a surface from the LandXML format. As a result, a Mesh object will be created in a drawing

LandXML is a popular format for exchanging data with other applications. In nanoCAD it is possible to import and export surface data using LandXML version 1.2 format.

After running the command, a standard file selection dialog box will open. Choose XML file and click OK. The command options will be displayed on the Properties toolbar:

The command options are specified on the Properties toolbar.

Options:

When you import a surface, a “TIN Surface” layer is created.

Export to LandXML

Command line: NG_EXPORT_LANDXML

The command exports a surface (Mesh object) and geopoints to the LandXML format for use in other applications.

After running the command, select a surface to be exported to the XML file. The command options will be displayed on the Properties toolbar:

The command options are specified on the Properties toolbar.

Options:

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Import from GIS

The command imports polylines and point objects from *.SHP and *.MIF files.

After running the command, it opens the dialog box in which you need to select an existing import template from the list or to create a new one.

Each import template can contain one or more nested object class templates.

First, create a new object class template, and then specify the corresponding output file. Template names are displayed in the left column of the dialog (Feature class), and output files – in the right one (Source file).

To create a class template, expand the class collection, click the empty field of the last stream in the left column and enter the name of a new template:

Note

A name should not contain the following characters: \ / : * ? ” ” < > |.

The context menu is available:

Click button to the right of a template name to edit it or select Edit in the context menu

A class template is a set of rules for data conversion. It determines which objects will be imported and sets the correspondence between the parameters of the external format objects and nanoCAD objects.

Table columns can be hidden using the context menu called by the right click.

Sequence of configuring a template:

1. In the Object/Attribute column, select a type of objects to be imported from an external file.

Only one type of objects should be specified in the template – if two or more are specified, they will not be taken into account.

It specifies the type of objects that should be imported into the drawing from a file:

• Polyline export of linear objects from the external file with converting them to a polyline object.
• Point export of point objects from the external file.
• 2. If you need to import all objects of this type, and do not need to specify additional import conditions, then click OK to close the dialog box. Otherwise, click on the ”+” sign to the left of the added object type, and specify the parameters to which the import condition will be applied.

3. If the value of this parameter should not inherit the value of the imported object parameter, but should simply receive a previously known value (for example, Roads layer existing in the document or color red), then in the Constant value column you should select the required value from the dropdown list.

This list presents the standard values and values contained in the current nanoCAD document. To set a non-standard value, assign it to the object of the current document, then you can select it in the drop-down list.

4. If the parameter value should inherit the parameter value of the imported object, then click in the first cell of the External object/attribute column and select the Scan file in the menu that opens

In the dialog box that opens, specify the file with mif (shp) extension, from which the data should be imported.

As a result, information about all types of imported objects and their parameters will be taken from the specified file.

If you have a ready-made type template in the.xml format, then instead of scanning geo-file, you can select Load from file and specify xml.

• 5. In the External object/attribute column, select from the drop-down list the external parameter, the value of which should be inherited by the internal parameter in the Object/Attribute column.
• 6. You can use filters to restrict the import of objects by certain values of their parameters. Thus, you can import objects only with a certain parameter value or a range of values, objects with empty/non-empty parameter value. For import operations, restrictions are imposed on the parameters of external objects from the External object/attribute column.

To set a filter, double-click a cell in the Filter column. This will open a window, the content of which depends on the type of value of the external object parameter (in the External value column.

A type of dialog for numeric values (Integer, Real, etc.):

Look empty values – only objects with a missing parameter value (selected in the External object/attribute column) will be imported.

Compare – enter a value to which the comparison operator from the Task Drop-down list will be applied Task – a logical operator. Together with the Compare field value, sets the filtering condition (the screenshot shows the condition=3).

Invert – a logical operator that inverts a given condition. It can be used only in case of Search for empty values. In other cases, it is ignored.

Export to GIS

The command exports polylines and point objects to *.SHP and *.MIF files.

After running the command, select the objects to be exported. In export templates the objects are filtered from the selection specified at this step. After selecting objects, a dialog for multiple export to geo-formats opens. In the dialog that opens, select an export template from the list or create a new one.

Creating and editing an export template

Each export template can contain one or more nested templates of Feature classes (Feature class column), which are associated with the output external files of SHAPE or MID/MIF format, where the data will be exported (Destination file column).

To create a class template, expand the export template and double-click an empty field in the Feature class column. In the text field, enter the name of the new template:

Note

The name should not contain the following characters: \ / : * ? ” ” < > |.

The same can be done using the context menu available in this dialog:

To edit the content of a class template, select its name in the Feature class column and click button on the right or select Edit in the context menu.

This will open the template settings dialog. A class template is a set of rules for data conversion. It determines which objects will be exported and sets the correspondence between the parameters of nanoCAD objects and external format objects.

The Change order XY box is checked in the case, when the coordinates along the X axis and coordinates along the Y axis should be changed during export.

First, you should specify the type of objects to be exported: Polyline, 2dPolyline, Point.

Usually, in the nanoCAD drawing, roads and buildings are represented by polylines:

Only one type of exported objects can be specified in each template. To export other types, create new templates.

Note

The objects will be exported not from all objects in the document, but from the selection that was made at the first command prompt, immediately after its start.

Below there is a table for converting types of objects when exporting to MID/MIF format:

Filtering the exported selection of objects using attributes

If you need to export not all the objects of the specified type, but a certain selection, then you should specify the attribute value by which the selection is carried out. For example, to export all buildings, as a rule, it is enough to set the Polyline object with the Closed “real” attribute value.

Click the <New attribute…> field and select the Closed attribute in the drop-down list

The attribute value is set by clicking button in the Filter column.

In the dialog that opens, select Compare, and in the drop-down list select the attribute value – Yes.

Filtering options:

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Now in the Filter column opposite to the Closed attribute, the icon will appear, which means that a value for this attribute has been set and is used as a filter during export.

If you use the resulting template for export, then the output file will contain all closed polylines (buildings) of the same color:

To export only yellow buildings with preserving polylines color in the output file, it is required to complicate the template a little.

Let’s set one more attribute – Color.

The attribute value should be specified in its filter. To do this, click button in the Filter column next to the corresponding attribute.

In the window that opens, select the desired value. To set the yellow color, select the Compare item and select Yellow from the drop-down list of available values.

Now all closed yellow polylines will be exported.

Exporting attribute values to the external format

To preserve the color during export, the Color attribute should be matched to the desired external format attribute.

You can get a completed list of external format attributes by loading semantic data from XML file of by scanning an existing MIF or SHP file. To do this, select <Load from file…> or <Scan from file…> in the External object/attribute field from the drop-down list

In the window that appears, specify the file from which you want to get semantic information.

In case of scanning files, a new xml file is created with an identical name containing semantic information,

Now in the External object/attribute column you can specify an external attribute that should inherit the value of the internal Color attribute when exporting objects.

If objects are sorted into layers, it is most convenient to use the Layer attributes to filter objects.

A Virtual attribute is used in a case, when during export for the external files objects you need to set the value of the attribute that is missing in nanoCAD objects.

Export of geodata

After configuring all templates, in the geodata export dialog, to the right of a name of each template, specify an output file of MIF format, to which the data should be exported.

As a result, we created “template-output file” pairs, indicating by what rules and in which file the data should be exported.

After creating all “template-output file” pairs, click OK to export the data.

The export will be carried out for all templates to which the output file was assigned. Templates without an output file will be ignored.

In order to avoid data loss, do not indicate the same output file for different templates.

Import of KML/KMZ files

The command imports from KML/KMZ (Keyhole Markup Language) format with a possibility to recalculate data from/to various topographic and geodetic coordinate systems using EPGS codes.

To import KML/KMZ:

• 1. Run the command.
• 2. In the file selection dialog that opens, select a file to import.
• 3. The EPSG Transformations dialog box appears.
• 4. In the right part of the dialog box, mark the objects to be imported from the file.
• 5. In the EPSG text fields, enter the number of the source and target coordinate systems according to the EPSG classification, focusing on the list provided. Click Apply.

6. Information on the selected target geocoordinate system will appear in the Transformation info section. To confirm the transformation, click ОK.

Labels without image will be imported as points. The point will be displayed with an icon (raster). A point is added to the bottom left corner of the icon.

Measurement Archive

The work with measurements can be divided into 2 stages: collection of a measurement files archive and formation of a project underlays collection from this archive.

An archive of measurement files contains raw or preprocessed data, while a set of prepared underlays should be groups of geopoints ready for use in projects.

Filling the archive of measurement files

Measurement files are stored in the Geofiles folder. The path to the folder is defined in the Standard directories section of the Options dialog.

To add a file to the archive, the Add measurements command is used, with the help of which the required file on the disk is specified, if necessary, a new name is given to it, after which it is copied to the measurement archive.

If you need not only to save a raw file, but to carry out a full import at this stage, so as not to return to

setting parameters later, then you should use the Save to the measurement archive command. You need to configure the parameters in it, after which the result in the form of a DWG file is placed in the archive.

The measurement archive is displayed in the file explorer in Geofiles folder. By expanding it, you can view all archive measurement files.

Creating selections and forming a set of underlays

To work with points, it is necessary to form selections from the measurement archive.

Selections are formed by special commands in the form of separate DWG files, which are subsequently placed as external references in working drawings. Thus, the same selection (underlay) can be inserted into several different working DWG files.

To form a selection:

1. Create a new underlay with the Insert a Geounderlay command.

2. Import the required measurements into it from the archive using the Import measurements command

• 3. Configure groups of points, forming them, if necessary, and setting their parameters (styles). Enable/disable the visibility of the desired groups.
• 4. Save the drawing to the collection of underlays as a separate named entity using the Save as geounderlay command.

The underlay collection is a separate Geofiles folder. The path to the folder is defined in the Standard directories section of the Options dialog.

It is also visible in the File Explorer as the Geofiles folder. By expanding it, you can view all the underlay files.

Adding Measurement File

Adding measurement files to the archive. The command moves the selected files (without opening) to the measurements archive.

The command can be launched from the ribbon, menu, command line, and context menu of the Geofiles folder in the File Explorer bar.

In the dialog that opens, select the measurement file to be added. Supported formats: DWG, SDR (Sokkia), CSV, XYZ, TXT. If the Geofiles folder is absent, then while Adding or Saving measurement files,

the folder is created automatically in the path - \Users\******\AppData\Roaming\Nanosoft*Ошибка! Неизвестное имя свойства документа.** 25.0\GeoFile.

Import Measurements

Importing measurement files into a drawing.

If the command was launched from the context menu of a file selected in the Geofiles folder in the CFile Explorer bar, then the current drawing is immediately imported from the measurement file.

If the command was launched from the ribbon, menu or command line, then a file open dialog appears with the Geofiles folder open, where you should specify the measurement file to be imported.

The contents of the DWG files will simply be pasted into the current drawing. For files of other formats, the Import geopoints command will be launched.

Save to Measurement Archive

Ribbon: Topoplan – Measurements Archive > Save to Measurement Archive Menu: Topoplan – Measurements Archive > Save to Measurement Archive

Toolbar: Measurements Archive > Save to Measurement Archive

Command line: NG_GEOFILE_SAVE

Saving the current drawing to the measurements archive.

Specify the file name (the name of the current one is specified by default).

The file is saved to the Geofiles folder.

The path to the folder is determined in the Standard directories section of the Options dialog

Attach Geounderlay

Command line: NG_GEOUNDERLAY_ATTACH

Inserting a geounderlay (as an external reference) from the archive into the current drawing.

If the command was launched from the context menu of a file selected in the Geounderlays folder in the File Explorer bar, then the specified geounderlay is immediately inserted into the current drawing. You can insert a geounderlay into the current document as an external reference or insert its content.

If the command was launched from the ribbon, menu, or command line, then a file open dialog appears with the Geounderlays folder open, where you should specify the geounderlay file to insert.

Save as Geounderlay

Saving a current file to the geounderlays archive.

Specify the file name (the name of the current one is specified by default).

The file is saved to the Geounderlays folder.

The path to the folder is determined in the Standard directories section of the Options dialog.