No, but you do need to make a point group and add that group to the surface
before it will do much.
James Wedding, P.E.
Technology Manager &
Jones & Boyd, Inc.
XP/2 on P4-3.4/1G
LDT2005SP1 & C3D2005SP1
There are basically three types of breaklines:
1) polylines - specifically, 3D polylines
2) 3D lines - TINs are a good example
3) proximity polylines - 2D polylines but there must be points (from the
point database) in proximity to the vertices of the selected polyline
included as part of the surface definition.
Does anybody have a clue what distance constitutes proximity?
"gera525" wrote in message
> Do you always need to draw breaklines around the points to model a
> terrain? I've tryed just associating a boundary and it doesn't terrain
> the model.