Triangle Surface

The triangle surface is defined by a group of interconnected triangles. You cannot define these triangles manually; instead they need to be imported from a program that works with triangulated models sometimes. The surfaces are sometimes referred to as Triangulated Irregular Networks (TIN), triangulations, polyface meshes and Digital Terrain Models (DTM).

The triangulations can be imported from CAD files (.dwg, .dxf), LandXML (.xml) files and Kubla Project files (.kcp). When importing from CAD files you need to select the layer that contains the polyface mesh objects, the polyface mesh objects in the selected layer will then all be merged together and imported as a single object. The LandXML and Kubla files work slightly differently as they do not have layers, instead you need to select the specific name of the surface you wish to import.

This form includes two sections:

① Select File Here you select the file that contains the triangulation you wish to import.
② Select Layer\Surface In this section you select the layer (with CAD files) or surface with LandXML and Kubla Project files.

Note: If you are loading from a CAD (.dwg, .dxf) file this form will also have a 'units' drop-down. This is required because the units are not saved in the .dxf format, so you need to specify them when loading the file

The video Existing Levels - Triangle Surface provides a comprehensive study of the Triangle Surface and how to import triangle data.