CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz]

CAD tip # 8322:

Question CAD
% platform category

How to extract intersection lines or edges from 3D objects?

You can extract (copy) outline edges or 3D intersection lines (curves) from any 3D solid or surface models in AutoCAD.

This can be done with the XEDGES command, where you just select a 3D solid (3DSOLID), 3D mesh (3DMESH) or 3D surface (SURFACE) object. Its edges (wires, wireframe) are extracted as new simple entities in 3D - lines, arcs or splines (as neccessary - from the geometry shape).

If you want to get the 3D intersection curve of two separate 3D solids (e.g. a conic section), first convert these solids to a single body - e.g. with the UNION command.

If you want to extract only a selected edge, use the command OFFSETEDGE with the option Distance = 0.

The extracted geometry may be obscured by the source object so you may need to delete or hide the object.

ACAD

* CAD

13.11.2011 19631×

Comments Tell a friend

Prices - CAD eShop:

AutoCAD

applies to: AutoCAD ·

See also:
Tip 11830:	How to influence linetype scale or color for hidden edges in documentation views?
Tip 11072:	How to make an interference line from 3D Faces?
Tip 10499:	How to fillet edges between two 3D solids?
Tip 10237:	Arc bridges (gaps) in line intersections.
Tip 10054:	Boolean operations on 2D polylines.

Selected tip: A handy calculator for AutoCAD.

Back All CAD Tips

Importing CSV file into an AutoCAD table. « | » How to convert a 3DSolid to 3DMesh or 3DFaces?

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link:

CAD: OS: Categ:
Text:	FAQ glossary

Featuring:
Link your AutoCAD texts with Excel tables/sheets. Export. Change. Import.
Try DwgText 2020 More info

Please use these tips at your own risk.
CAD Studio is not responsible for possible problems that may occur as a result of using any of these tips.


Login/Register:
Visitors: 3732