[osg-users] TerrainProfile of a Region?

[Anthony Arnold]

Hi,

I'm trying to get the min/max elevation of an osgEarth MapNode for a given region, by specifying the NE, SE, NW, SW corners.

Looking at osgEarthUtil::TerrainProfileCalculator I can see that it's using the ElevationSlice class, which uses a PlaneIntersector to get all of the terrain points along a plane.

I figured I could do a similar thing with a PolytopeIntersector to get all terrain points within the Polytope. This class isn't really documented comprehensively though.

Does anyone have any advice on how I can achieve this? My end goal is to just define a region and get the min/max elevation in the region.

Thank you!

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