The Topo Rect plug-in creates a 3D rectangle geometry. The rectangle behaves like it is cut out from cloth and smoothed over the geometry provided by Topography.
This is needed if the rectangle should be used on a surface which is not 100% planar to prevent parts of the geometry appearing to be floating above the ground. Ski jumps and golf greens are examples where this should be used.
The tessellation needs to be set according to the detail in the topography to eliminate surfaces cutting to the topography or floating above it.
Note: This plug-in is located in: Plugins -> Geom plug-ins -> Topo
Topo Rect 3D Properties
Use LOD: Enables/disables dynamic level of detail.
Width: Determines the width of the rectangle.
Height: Determines the height of the rectangle.
Offset: Offsets each individual vertex from the topography.
Tessellation: Determines the amount of vertices used for the rectangular surface.
Plane
XY: Creates rectangle in XY plane.
XZ: Creates rectangle in XZ plane.
YZ: Creates rectangle in YZ plane.