How can I call Rhino MeshOutline functionality inside a VB.net(RhinoCommon) component?

And also, how can I specify the name of the viewport for this command? Thanks in advance!

Replies to This Discussion

Permalink Reply by David Rutten on March 17, 2011 at 9:04am

Try Mesh.GetOutlines()

There's two overloads, one that takes a viewport and allows for a perspective based outline, the other takes a plane.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Doctor No on March 18, 2011 at 7:39am

Sorry but I cant get it... should I convert the list of breps into meshes first?

should it look like this? GetOutlines is a member of OnMesh? Is it RhUtil? (sorry for my ignorance)

Private Sub RunScript(ByVal geo As List(Of OnMesh), ByVal viewport As String, ByRef MeshOutline As Object)

MeshOutline = geo.GetOutlines()

Permalink Reply by David Rutten on March 18, 2011 at 9:39am

GetOutlines is a member of the Rhino.Geometry.Mesh class. If you're using the new RhinoCommon SDK then you'll have access to it. If you have classes that start with "On" or "MRhino" then you are still using the old SDK. I don't know how and if MeshOutlines is available in the old SDK.

See attached.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Attachments:

meshoutlines.ghx, 58 KB

Permalink Reply by Armin Seltz on August 21, 2014 at 11:10am

So "old" and still so useful. So will this not make it into GH for good? I use the mesh outline function a lot in rhino.

But than again, this still works fine :) Made my day!

Permalink Reply by Armin Seltz on December 11, 2014 at 8:03am

Hello again David,

so I have been making use of your meshoutlines module a LOT (to create laser cutter paths). But now that it is getting more advanced I am noticing something.

It appears to be only using the outlines of the "low quality" mesh. Now I have really bad looking rounded corners. If I switch to high quality I can see the geometry is smooth, but the mesh outline is still bad. (see attached images)

Is there a way to have an option of high quality ouput?

Thank you!

Attachments:

low_quality_setting.JPG, 36 KB
high_quality_setting.JPG, 37 KB

Permalink Reply by David Rutten on December 11, 2014 at 8:09am

It will use whatever mesh you plug in to it. You have to make sure that mesh is high quality. If you're providing Breps, then you rely on the automatic conversion from Brep to Mesh, which is always a low quality operation. Instead, you should perform the meshing using the appropriate components, and using appropriate meshing settings.

Permalink Reply by Armin Seltz on December 11, 2014 at 8:10am

Ah, right. OK, that makes sense. Will have a try now and report back :)

Thanks for a super quick reply!

Permalink Reply by Armin Seltz on December 11, 2014 at 8:45am

Ok, so I am trying the Mesh Brep component with the high quality settings, but the resulting Mesh still seems too low quality. Using the settings (custom) I never seem to be able to get smoother corners, no matter what settings I tweak.

Any other suggestions?

Attachments: