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Simple wireframe format?

I am looking for a simple file format for use in wireframe models. I know VRML, u3D, etc., but they seem heavy for my needs. My criteria:

  • Must have a clear specification. Either open, or well-established / documented.
  • I need (only) simple models - vertices and edges. I do not want to handle persons or objects. If the format supports more, it's fine if I can ignore them.
  • End-user tools are optional, but that would be great. If not, it should be human readable (and editable for simple models).
  • It would be nice (but not necessary) to be able to comment, or at least node labels.
  • It doesn't matter which language I use, but the likely parameters are Java / C ++ and OpenGL

Or am I just better writing vertex / edge lists to a text file and doing with it?

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I do not know of any formats that are actively focused on the appearance of the frame. (Edge / vertex only) You almost always have to deal with faces at least. The good part is that if you have no particular need for anything other than rendering a wireframe edge, you can do it with almost any API from the list of faces.

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