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Support / strange results from getWorldSpaceBounds (sample on jpct wiki) [solved]
« on: June 14, 2012, 06:12:34 pm »
I have an object3d that is a cube initially set at (0,0,0).
When I invoke getWorldSpaceBounds for this cube I get (0,0,0) and (1,1,1) that I think is the expected result.
I then do a lot of rotations and translation on this cube. Each individual rotation is always 180dg or -180dg around one of the axis so that the cube local coordinate axis are kept parallel to the world axis (the sides of the cube are always parallel to the screen)
I then calculate the size of the sides of the returned bounding box (using the world bounds) using w=maxX-minX, h=maxY-minY, d=maxZ-minZ. I would expect this to always be 1,1,1 and it is most of the time. The problem is that after some rotations/translations I begin to get strange values for w,h,d like 3,2,1.
Am I missing anything?
When I invoke getWorldSpaceBounds for this cube I get (0,0,0) and (1,1,1) that I think is the expected result.
I then do a lot of rotations and translation on this cube. Each individual rotation is always 180dg or -180dg around one of the axis so that the cube local coordinate axis are kept parallel to the world axis (the sides of the cube are always parallel to the screen)
I then calculate the size of the sides of the returned bounding box (using the world bounds) using w=maxX-minX, h=maxY-minY, d=maxZ-minZ. I would expect this to always be 1,1,1 and it is most of the time. The problem is that after some rotations/translations I begin to get strange values for w,h,d like 3,2,1.
Am I missing anything?