Topoplan - A digital terrain modeling tool

The Topoplan Module creates surfaces by several methods:

• Create TINs by points
• Explode clouds into points
• Import elevation grids
• Convert models to 3D faces, submeshes, and polyface meshes

The Topoplan Module now supports the display of objects made in Civil 3D. They are no longer displayed as proxy graphics. The Properties panel edits their properties and the style of displaying them.

The Topoplan Module applies textures on surfaces:

• Flat Texture Overlay applies textures to surfaces from point clouds
• Raster texture mapping applies raster images as textures on surfaces
• Mesh coloring by height colors surfaces according to their elevation
• Calculating surface volume calculates volumes of surfaces and surface areas
• Calculating area defines the areas of surface patches

The Topoplan Module creates digital terrain models from multiple data sources:

• Importing points from text files
• DEM imports
• Unloading points from previously imported point clouds

The Topoplan Module offers these import and export options:

• Import geopoints imports text files in XYZ and TXT formats
• Import from LandXML imports surfaces in LandXML format, creating mesh objects
• Export to LandXML exports surfaces (mesh objects) to the LandXML format for use in other applications
• Import from GIS imports polylines and point objects from *.SHP and *.MIF files
• Export to GIS exports polylines and point objects to *.SHP and *.MIF files

The Topoplan Module has comprehensive tools for working with surfaces and constructing contours:

• Flipping and deleting edges
• Adding, moving, changing, and deleting vertexes
• Adding structure lines
• Removing faces with edges of a certain length through mesh boundaries

The Topoplan Module offers these tools for working with relief elements:

• Constructing contours
• Contour line removal
• Bergstriches (hatching), contour lines, and labels
• Building profile lines
• Generating 3D polyline objects on meshes

The Topoplan Module has additional tools for working with surfaces:

• Cutting meshes
• Classification of meshes that divides them into classes, such as to separate road surfaces from lawns

The Topoplan Module has these additional tools for working with reliefs:

• Projecting lines onto meshes
• Correcting the elevation of zero by changing elevations (Z coordinates) of 3D polylines

Manually drawing contour lines wastes valuable project time. With nanoCAD Topoplan, you can:

• Import survey points
• Automatically generate contours
• Create surface models
• Adjust intervals instantly

This significantly reduces drafting time for:

• Terrain modeling

One of the biggest challenges surveyors face is file compatibility. nanoCAD Topoplan works directly in DWG format, ensuring:

• Seamless collaboration with architects & engineers
• No data loss during file exchange
• Easy submission for government approvals

Whether you’re working on:

• Smart city projects
• Road & highway alignment
• Industrial land development
• Municipal planning
• Agricultural land surveys

Topoplan handles large coordinate datasets smoothly.

Convert raw survey data into ready-to-submit development drawings.

Generate terrain profiles and alignment-based contour adjustments.

Model large terrain surfaces efficiently.

Accurate land measurement and slope analysis.

In this first lesson of the Topoplan module course, we’ll walk through the essential process of importing geodetic data—your first step in building a solid foundation for topographic modeling. You'll also learn how to create your very first Triangulated Irregular Network (TIN) surface, paving the way for more advanced terrain analysis later in the course.

In this second lesson of the Topoplan module, we’ll explore the fundamental commands for creating and editing TIN (Triangulated Irregular Network) surfaces. These essential tools help you build the surface models needed to generate accurate contour lines. We’ll also dive into additional TIN operations and introduce specialized tools for working directly with contour lines.

In the third lesson of the Topoplan module, you'll dive into advanced import functions that significantly enhance your data management capabilities. We'll also cover the built-in tools for calculating the volume and area of TIN networks. Finally, you'll learn how to prepare and print your drawings with ease.