How to split wires with shared edges

Anton Shabalin's picture
Anton Shabalin
Thu, 08/10/2017 - 06:15
Forums: 
Modeling Data and Algorithms

Hello everyone,

I have a wire showed on the attached picture (wires). How can I create 3 closed wires from it ? When I tried to make 

  ShapeAnalysis_FreeBounds::SplitWires(wires, GLOBAL_TOLERANCE, true, closedWires, openWires);
I've got 1 closed wire and 2 opened wires (as shown at pic2)

Thank you.

Attachments: 
Image icon wires_0.png
Image icon pic2.png
Qr Qr's picture
Qr Qr
Mon, 08/21/2017 - 22:20

Hi,

The solution is Boolean operation (General Fuse: https://www.opencascade.com/doc/occt-7.0.0/overview/html/occt_user_guide...) and then proper iterating your fused wires (e.g. with left-turn rule). Not sure if left turn is available in OpenCascade (there is something similar at BRepFeat_SplitShape and also in shape healing), but this is something you can develop from scratch.

Rudy Morin's picture
Rudy Morin
Sat, 02/24/2018 - 04:53

Hi Anton !

Have you found any proper solution to achieve your goal ?

Regards,

Rudy