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BarrelRider
09-06-2001, 05:07 AM
Hi , does somebody know of a way to display different heights of terrain in the form of a wireframe mesh, or bezier surface. I am given latitude, longitude and height values,and I am stuck, help would be greatly appreciated.Thanks

DFrey
09-06-2001, 05:24 AM
To what scale? That is, is the longitude and latitude at a global scale where curvature of the planet is important? If not, then simply use the longitude, latitude, and elevation as the three rectilinear coordinates. Next, do the points given make a regular network or irregular network? The approach to take would largely depend on this. For regular networks, simple triangle strips can be used for full scene rendering, or one of the various CLOD methods could be used if things need to be interactive. For irregular networks, look into Delauney triangulation and TINs or RTINs.