Terrain Generalization
Goals
Development of interactive methods for generalizing elevation models that allow the user to selectively remove superfluous details and enhance important terrain features according to the following criteria:- size of terrain details,
- geomorphological importance of terrain features,
- viewing distance.
Results
A method is currently under development based on an enhanced Laplace pyramid of the terrain. Crests and valleys are identified by a combination of various local filters (plan curvature, profile curvature, percentile, local elevation range). An interactive prototype application has been developed using Java with JOGL (Java Binding for the OpenGL API).
Generalization of a terrain surface
Screenshot of the prototype application