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Thread: Difference Between 2D Polyline and 3D Mesh

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    Default Difference Between 2D Polyline and 3D Mesh

    I am having a building surveyed and the price differences are great. What advantages do a 2D polyline have over just a standard 3D Mesh. I am using the surveyed CAD file for creating a pixel accurate "guide" for projecting an image on the front of the building. Thanks.

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    Default Re: Difference Between 2D Polyline and 3D Mesh

    I think we need more information. At the moment you're asking "what's the difference between apples and concrete?"

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    Default Re: Difference Between 2D Polyline and 3D Mesh

    Second the "more info". What's the "2d Polyline" going to consist of? Is it just the outline of the building on plan? Or is it a polyline at preiodic levels. Or is it polylines to each elevation indicating the recesses & protrusions of each facade? How "detailed" would the 3d Mesh be? Would it indicate all the nooks & crannies on the facade. Would it be split as separate entities for different finishes?

    In general I'd say the mesh would be more of a "model" than the "2D" polyline. But without more info I'm just guessing.

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    Default Re: Difference Between 2D Polyline and 3D Mesh

    Hey Everyone: For the project I need all the measurements for the front building, including windows, doors, etc etc. The company said it was a 500,000,000 point scan, which will i assume, give me all the details I need. I then need to take this CAD product, flatten it out, and basically have a 2D front view of the building, to scale, to take measurements from. Let me know if this helps. Thanks B (to irneb, I need just an outline of the building on plan, including all features such as windows, doors, nooks, and protrusions. I dont need to know the depth, but I need to know from a front view, their measurements.)

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    Default Re: Difference Between 2D Polyline and 3D Mesh

    Quote Originally Posted by brandenroth1364685 View Post
    Hey Everyone: For the project I need all the measurements for the front building, including windows, doors, etc etc. The company said it was a 500,000,000 point scan, which will i assume, give me all the details I need. I then need to take this CAD product, flatten it out, and basically have a 2D front view of the building, to scale, to take measurements from. Let me know if this helps. Thanks B (to irneb, I need just an outline of the building on plan, including all features such as windows, doors, nooks, and protrusions. I dont need to know the depth, but I need to know from a front view, their measurements.)
    You probably don't need a mesh, then; just lines (or polylines), circles, etc..

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