Update Topgraphy

Generating surface roads on a reference topography

Update Topography


Command Overview

The Create Surface Roads dialog is used to create roads on a reference topography, using a reference line and various parameters describing road profile and cut and fill batters.

After running the command, the Create Surface Roads dialog is displayed in a dockable control bar.

More about the Create Surface Roads dialog...


Once the road and batters have been generated and look as you want them, the Update Topo button can be used to create a copy of the original topography.

The topography will be updated to incorpote the designed road (honouring the cross sections specified), connected to the topography via cut and/or fill batters. A continuous surface will be created, with each element of the topography (with respect to surface roads) being shown in a separate colour.

The resulting wireframe object will include a TYPE attribute containing the following possible values:

  • Absent (-): surface representing the original topography
  • ROAD: surface representing the designed surface road
  • CUT: surface representing a batter cut surface
  • FILL: surface representing a batter fill surface

If the original topography is being shown in the current view then it will automatically be hidden. You can re-enable it using the Surface Roads Toolbar if you wish.

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 Create Surface RoadsCreate Surface Roads ToolbarSurface Roads reference linesSurface Road Gradient ConstraintsSurface Road Cut and Fill VolumesRoad Sections and ParametersSurface Road Batterscreate-surface-roads (command)Set Road Cross Section (dialog)