Trimming mesh

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sarge
Posts: 2
Joined: Mon Jul 29, 2013 12:23 am

Trimming mesh

Post by sarge »

Hello

I have an app with kernelcad displaying scanned mesh imported from .wrl. I often use right mouse click menu to trim the mesh by deleting simplexes. The problem is that sometimes it does not work. Just nothing happens. It seems to be random. Does it depend on point of view?

I go to advanced - Edit - Select - Simplexes; Select the simplexes in the window and nothing gets selected

Please help
Sarge

nickz
Site Admin
Posts: 236
Joined: Fri Jul 26, 2013 3:58 am

Re: Trimming mesh

Post by nickz »

Hello sarge

Most likely you hit the limitation on number of simplexes. Your mesh must be pretty dense. At the moment the number of selected simplexes should not exceed approximately 400. Zoom in and do this in several steps if this happens.

When this was implemented a while ago we used a graphics-based approach. This limit comes from OpenGL base library limitation. We can revisit and remove this. Please vote for this by letting us know that this is important to you: http://www.dynoinsight.com/Supp.aspx

Nick

nickz
Site Admin
Posts: 236
Joined: Fri Jul 26, 2013 3:58 am

Re: Trimming mesh

Post by nickz »

Sarge, more options for trimming:

1. Free hand cut surface http://www.dynoinsight.com/Help/Geom/Op ... ation.aspx

2. Do the above in Modelling Studio: Current Object > Clipping Planes > “Cut Object” button

3. Clip with a plane using planar subtract: http://www.dynoinsight.com/Help/Geom/Ob ... arSubtract

4. A regular Boolean subtract of arbitrary shaped object. When the mesh is not closed the operation will result in clipping

5. It also can be done interactively by creating an overlay polygon (http://www.dynoinsight.com/Help/Geom/View/Overlay.aspx ), adjusting it and clipping with its extrusion. This latest one might need some work (or contact DInsight)

Nick

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