3D Surfaces and Raster Manager

A 3D surface is required for Raster Manager images to be rendered. In OpenTunnel Designer , these 3D surfaces can be represented by any DGN surface (shapes, b-splines, etc.) supported by the rendering engine. These 3D surfaces, which are often Digital Terrain Models, can be generated or imported in OpenTunnel Designer with a variety of software products.

Figure 1. Example of a 3D surface