Cut
Surface Operation
To cut surface along a free-form curve:
A) Define
the curve:
- Select Advanced > Edit > Line in
context menu of the component (right mouse click). Or: Click into the window of the component to make sure it has focus
and press 'l' key (for line).
- Make a mouse stroke to draw a line. See Picture 1 and the
text below for more details. After the mouse is released the curve will be
applied to the surface under the stroke. See the picture 2.
- If required, change point of view by using
rotation/pan/zoom and repeat steps 2 and 3 to extend the line
B) Select AdvB)
Select Advanced > Edit > Cut in context menu or press ‘c’ (for cut) and ‘x’
(execute) keys to execute the cut operation.
The part of the surface on the right
hand side (looking from external part of the surface) will be removed from the
surface. When surface is not closed and external side is not clearly defined it
can be determined as the side surface normals are looking into. Normals can be
viewed in component via: Right mouse click > in the context menu select Advanced
> Normals. In 3D Debugger make the object current and turn on Normals check box
on 3D properties page of the form.
As the line has to divide the surface in two parts, it must be either closed
(ends nearly coincide. See picture 3) or its ends, after application of the
mouse stroke, must be located on edges of the surface. In case of the open curve
it is recommended to draw the mouse stroke extended beyond edges of the surface,
so it can be applied correctly. See the picture below
All surface under the mouse stroke must be visible. Stroke on pic 4 is invalidting curve goes
along edge of the mesh or has self intersections. Mesh of a
MeshSection under the line must also be
valid, without zero sides and be connecter correctly. Use third party tools or
contact us about healing and validation of mesh
Pic 1. Mouse stroke to define and open line.
Pic 2. Line applied to surface
Pic 3. Closed line on surface
Pic 4. Invalid stroke