With contour lines, each line connects points of equal elevation on the surface. The lines can help you determine the elevation at a specific location on the surface, help clarify and analyze the 3D surface terrain, and help with navigation.
Contour lines added to a DEM surface
Contour lines are stored as new polyline or polygon features in an SDF file, and as a new layer in Display Manager.
You can edit and style the contour lines as you do any other feature layer. You can also delete contour lines and recreate them.
When you add contour lines, you specify the following:
- Name of the new contour layer
- Contour elevation interval
- Units (meters or feet) used to measure elevation
- Major contour interval
- Contour labels
- Whether to create contours as polylines or polygons
- File name of the SDF that will store the contour features