point cloud data from facetted model

Discussion in 'Pro/Engineer & Creo Elements/Pro' started by Robert, May 29, 2006.

  1. Robert

    Robert Guest

    Is it possible to generate point cloud data from a facet feature?
     
    Robert, May 29, 2006
    #1
  2. I'm interested to know why you'd want to?

    Sean
     
    Sean Kerslake, May 30, 2006
    #2
  3. Robert

    dgeesaman Guest

    I haven't done this, but in theory it can be quite easy. Facet
    features are usually created from a file containing tesselated geometry
    (VRML, STL, 3D DXF). A tesselation file usually contains a list of
    points (x,y,z), followed by a list of triangles that connects those
    points. When the tesellation file is in text format, you can simply
    open it in a text editor and delete everything but the points data.

    Other tessellation files don't have a separate list of points, instead
    it just defines a triangle as 3 points with their x/y/z data. In that
    case, if you managed to cut out the points data your resulting point
    cloud would include many repeated points. I'm not sure how that
    affects what you want to do with it, but it's something to be aware of.

    Dave
     
    dgeesaman, May 30, 2006
    #3
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