HeightStyle

[in, out] HeightStyleCode – This property determines how the vertex heights of the objects are interpreted.

• HSC_TERRAIN_RELATIVE = 0
  All the vertices are measured relative to the terrain (making the object “accept” the shape of the terrain underneath it.)

• HSC_PIVOT_RELATIVE = 1
  All the vertices are measured relative to the object’s pivot (therefore, if all of these vertices have the same height, the object appears on the same plane).

• HSC_ON_TERRAIN = 2
  All the vertices are placed on the terrain, ignoring the object’s elevation, which is set to 0.

• HSC_TERRAIN_ABSOLUTE = 3
  All the vertices are measured relative to the terrain database vertical datum base ellipsoid.