point inside torus
- To: mathgroup at smc.vnet.net
- Subject: [mg25261] point inside torus
- From: Wouter Meeussen <eu000949 at pophost.eunet.be>
- Date: Sun, 17 Sep 2000 04:47:48 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
see notebook (12 kB)
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this is one of the lids : the set of first points in each polygon;
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the top lid needs reversing in order to get the correct circulation;
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for any segment, the circulation of the polygons con be checked from its \
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for any segment, the above checks wether the point 'loci' is outside (as \
opposed to inside or on) the segment :\
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programming for speed instead of clarity, we try to abort the calculation as \
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and finally, we can verify if if the point loci is inside *any* of the convex \
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")\nIf the testpoint lies outside, all 29 (=segmentcount) polyhedral \
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then a hit is only shure after checking all 25 (=segmentlength+2) polygons :"
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Dr. Wouter L. J. MEEUSSEN
w.meeussen.vdmcc at vandemoortele.be
eu000949 at pophost.eunet.be