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# crude 3D modelling in BELA

- To: femm@yahoogroups.com
- Subject: crude 3D modelling in BELA
- From: "James Pawson" <thedatastream@yahoo.com>
- Date: Tue, 26 Aug 2003 15:32:20 -0000
- User-agent: eGroups-EW/0.82

    All,

    I'm developing a crude method of modelling 3D objects in BELA. I'm
    simulating a multilayer PCB capacitor with circular pads and an off
    centre via and clearance hole.

    The method I have used is to use LUA to draw a top cross section of
    the pads in BELAdraw. This is then divided up and cut into "vertical
    slices" by LUA, using the modified selectnode() function discussed
    earlier in http://groups.yahoo.com/group/femm/message/2163

    These results are written to an array, and accessed to draw and
    simulate each slice individually. The results are added up and the
    end result is presented using a message box.

    I'm at the stage now where the cross section of the pad stack
    capacitor is being sliced up and successfully drawn. This is then
    triangled and at the point where it can be simulated.

    I will update when I have written more code.
    questions? comments?

    regards, and thanks for the help so far
    James

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