Terrain intersection

Mali Karl-Heinz · 05-05-2012, 08:57 AM

Hello,

what is the best approach to perform a plane/terrain intersection to get the contour of the cutting plane?

Thanks a lot.

Mali Karl-Heinz · 05-07-2012, 07:04 AM

By the way is an example for the HighResolutionTerrain class with the method intersectTriangle(Vec4[] triangleCoordinates, Position[] trianglePositions, List<Position[]> intersectPositionsOut) available? I did some experiments with it, but the results (NullPointerException) are not satisfying.

Thank you for your help.

tag · 05-08-2012, 04:30 PM

There are five examples that use HighResolutionTerrain; just examine those. Also look at the ContourLines example for another way of doing terrain intersections. See also WWMath.polytopeIntersect().

Mali Karl-Heinz · 05-09-2012, 11:10 AM

Thank you for your hint. With ContourLine.java I was able to solve my problem.

05-05-2012, 08:57 AM	#1
Mali Karl-Heinz Member Join Date: Jul 2011 Location: Styria, Austria, European Union Posts: 32	Terrain intersection Hello, what is the best approach to perform a plane/terrain intersection to get the contour of the cutting plane? Thanks a lot.

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05-07-2012, 07:04 AM	#2
Mali Karl-Heinz Member Join Date: Jul 2011 Location: Styria, Austria, European Union Posts: 32	By the way is an example for the HighResolutionTerrain class with the method intersectTriangle(Vec4[] triangleCoordinates, Position[] trianglePositions, List<Position[]> intersectPositionsOut) available? I did some experiments with it, but the results (NullPointerException) are not satisfying. Thank you for your help.

05-08-2012, 04:30 PM	#3
tag WWJ Technical Manager Join Date: May 2007 Location: Seattle Posts: 1,041	There are five examples that use HighResolutionTerrain; just examine those. Also look at the ContourLines example for another way of doing terrain intersections. See also WWMath.polytopeIntersect().

05-09-2012, 11:10 AM	#4
Mali Karl-Heinz Member Join Date: Jul 2011 Location: Styria, Austria, European Union Posts: 32	Thank you for your hint. With ContourLine.java I was able to solve my problem.

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