Project 2D polylines to surface

[JensM]

Hi,

I'm trying to find a way to convert multiple 2D polylines to 3D polylines.
The height of 3D polylines should be determined on the basis of a previously made surface.
Is this possible with CadTools?

Thanks!

[Lars]

Hi!
Yes that os possible.

• First you create a new surface (or import triangles from graphics, using the import surface in Edit/View form).
• Then convert your 2DPolyline to 3Dpolyline using CadTools Convert command.
• Finally you use "Edit/View" command, load your surface and then use the drape command.

This procedure will drop the polyline onto the triangles and insert a vertex at every crossing with a triangle leg. As an option you can drape only original line vertices (useful if you creating a drainage pipe)

If your 2DPolyline contain arcs they will be converted to 3Dline elements due to the fact that a 3Dpolyline only can contain straight line elements. You can use the Setting "Chord height" in the General tab to manipulate the accuracy (default value is 0,01, a lower value will increase the accuracy)

Lars

[JensM]

Thanks for your reply, will try it soon