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IndustryArena Forum > CAD Software > Uncategorised CAD Discussion > please, how to write code that creates/reads dxf ?
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  1. #1
    Join Date
    Jun 2015
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    please, how to write code that creates/reads dxf ?

    hello please, how to write code that creates/reads a dxf format ? 2d, not fancy 3d / kindly
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

  2. #2
    Join Date
    Apr 2004
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    5728

    Re: please, how to write code that creates/reads dxf ?

    How would that work? You just think of a shape, and this code produces a perfect drawing in DXF format? And you can also feed a DXF drawing into it, and it beams the shape into your brain?
    Andrew Werby
    Website

  3. #3
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    Re: please, how to write code that creates/reads dxf ?

    not about who handles the file, but file structure, shared between different programs
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

  4. #4
    Join Date
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    Quote Originally Posted by deadlykitten View Post
    not about who handles the file, but file structure, shared between different programs
    So.... you want to do what the CAD system does for you. What high end computer language experts charge big bucks for ?
    I'm not talking CNC Programming (G code type language etc), nor is it parametric/variable structured

    You do know what DXF actually means ?
    The actual DXF file is ascii coded( can be read/edited in a standard text editor ie notepad)
    Each CAD system would have their own version and limitations
    I assume they are written in computer language (ie Cobol C++ etc) then compiled & locked so that the general public can't stuff with their proprietary knowledge

    You want to know how to create a file to read/write DXF files. Take up a computer science degree, or simply buy a sear of a CAD system

  5. #5
    Join Date
    Dec 2003
    Posts
    1206

    Re: please, how to write code that creates/reads dxf ?

    It does seem like a lot of effort when basic software like Librecad can read a .dxf and is a free download.You can,if you don't want to learn a CAM system,create an offset equal to you tool radius and write Gcode by hand to create a toolpath.Or you can find an online service that will do the job.Some of them used to be a free service and may still be.

  6. #6
    Join Date
    Jun 2011
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    2

    Re: please, how to write code that creates/reads dxf ?

    Quote Originally Posted by deadlykitten View Post
    hello please, how to write code that creates/reads a dxf format ? 2d, not fancy 3d / kindly
    There's a library out there for it - but DXF is kinda painful to read/write. *sigh* I should work in that, again. My thinking is you parse all the vertices, then do some sort of convex hull algorithm to find inside / outside. After that, I guess it depends on your application.

    I feel like that's the real question - what are you trying to accomplish?

  7. #7
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    Jun 2015
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    4131

    Re: please, how to write code that creates/reads dxf ?

    hy i solved it for simple geometry; there are many hints inside the g-code forum

    i converted countouring g-code into rough plunging, and i needed the dxf format to visualise what i was doing

    final goal is to create a 2d cad-cam / kindly
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

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