 | | Re: Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
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Error: read: Count how many *other* polygons this line segment intersects. for Count how many polygons this line segment intersects. Or, if counting your own polygon, switch even and odd. (22 years ago, 7-Aug-02, to lugnet.cad.dev)
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| | Re: Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
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The simple algorithm: Project a normal from any vertex of the polygon to some point far beyond the object. Count how many polygons this line segment intersects. If odd, the normal was pointing in, if even, the normal was pointing out. This assumes (...) (22 years ago, 7-Aug-02, to lugnet.cad.dev)
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| | Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
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(...) Tell me about it. (...) I think have the math right for determining polygon winding. The problem is this, how do can I traverse the polygonal faces of a convex or concave polyhedron(a part) and know that I'm looking at said polygon from the (...) (22 years ago, 7-Aug-02, to lugnet.cad.dev)
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| | Re: Updating other persons parts?
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I for one would welcome someone to fix my poor attempt at my parts :). Wouldn't hurt my pride at all. (...) (22 years ago, 7-Aug-02, to lugnet.cad.dev)
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| | Re: Heraldry Terms
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(...) By the way--are you going to make it to Pennsic this year, you crazy medieval geek?!? Dave! (22 years ago, 7-Aug-02, to lugnet.castle, lugnet.cad.dev)
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