removepoint

int  removepoint(int geohandle, int point_number)

int  removepoint(int geohandle, int point_number, int and_prims)

geohandle

A handle to the geometry to write to. Currently the only valid value is 0 or geoself, which means the current geometry in a node. (This argument may be used in the future to allow writing to other geometries.)

point_number

If this is -1, the function has no effect.

and_prims

If this is 1, the function deletes any degenerate primitives that referred to the removed point (for example, closed polygons with fewer than 3 vertices or open polygons with fewer than 2 vertices).

If this is 0, the function only deletes primitives that become invalid because of the removed point (for example, tetrahedra with fewer than 4 vertices, or volumes with zero vertices).