Getting Geometry and Texturing data from entities (through WorldDraw?)

akolymparis — Mon, 22 Feb 2016 16:25:08 GMT

Greetings all.

While trying to find ways to optimize some old code I had made for gathering such information as geometry (vertices/faces/normals) and material properties from entities, I stumbled upon this [very interesting post].

After I tried out some stuff I managed to retrieve some data for most kinds of 3D entities but here's the problem:

My understanding was that worldDraw is the same method everyentity calls to draw itself in the editor and thus I was expecting/hoping to have access to information like texture UV coordinates and on the way autocad draws lines with dashed linetypes etc. But I found that was not the case.

I have overriden WorldGeometry, WorldDraw and SubEntityTraits as per the example and I jave implemented some code in the calls that actually give me geometric information back. For example, through Shell() I have retrieved geometry for all solids, meshes and surfaces I've tried, but no matter how i've set their materials and material mapping, the faceData do not contain a material mapper and vertex data do not contain any texture coordinates, they are simply null.

Is there a way to access that information besides calculating UVs for every entity (my previous code did that, but I would rather use something native)?

Thank you in advance for any answers!

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)

akolymparis — Thu, 25 Feb 2016 15:26:53 GMT

Bumping.

Still looking for answers 😃

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)

johnteng00 — Wed, 02 Mar 2016 15:41:29 GMT

I want the same info, looks like with ObjectARX, we may not be able to get it. Have you tried to post the question to the development net work?

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)

akolymparis — Thu, 03 Mar 2016 07:50:00 GMT

Hey there.

No actually I haven't tried that. Embarrassingly enough.

Will do though.

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Getting Geometry and Texturing data from entities (through WorldDraw?)

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)

Re: Getting Geometry and Texturing data from entities (through WorldDraw?)