[HELP] AutoLisp newbie here, need help with rotation of points

Discussion in 'AutoCAD' started by Trixtan, Jan 17, 2005.

  1. Trixtan

    Trixtan Guest

    Hi all,

    I am new in AutoLisp.
    I have to write a function that take all the points in the drawing and
    rotate them in the YZ plane. I have learned how to select the points,
    but can you give me some suggestions about rotation? Thank you very
    much.

    Trixtan
     
    Trixtan, Jan 17, 2005
    #1
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  2. If you are going to use a COMMAND call to ROTATE,
    you will probably first have to adjust your UCS to make that possible.
    The rotation has to happen in the plane of the USC.
     
    Michael Bulatovich, Jan 17, 2005
    #2
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  3. Trixtan

    CS Guest

    There is ROTATE3D you could use also but in AutoCAD 2000 I had problems with
    it not being as accurate as rotating the UCS and things that should have
    been parallel or perpendicular were off by some rounding factor. Using
    ROTATE3D was actually easier than rotating the UCS and rotating, but the
    errors it created weren't worth my time.

    Corey
     
    CS, Jan 17, 2005
    #3
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