[list-dotprod] from list-abs might come in handy
2013/12/6 Claude Heiland-Allen <cla...@mathr.co.uk> > On 05/12/13 23:40, João Pais wrote: > >> Hello list, >> >> I had a doubt, will try to explain. >> >> I wanted to define a line in a 3d space through 2 points, and be able to >> find out the distance from another point to that line. Since I'm very >> bad at math, I wanted to know if anyone has done something similar, or >> knows how to get to it. >> > > http://paulbourke.net/geometry/pointlineplane/ > > first example on the page, you just need to clamp u to [0..1] if you want > to make it work for a line segment instead of an infinite line. > > > Claude > > > As I see it, the process goes this way: >> - define a line from coordinates x1,y1,z1 to x2,y2,z2 >> - declare the point x3,y3,z3 >> - find the distance from that point to the nearest point belonging to >> the said line >> >> >> Any existing examples with gem rendering would be great. >> >> Thanks as usual, >> >> jmmmp >> > > -- > http://mathr.co.uk > > > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list >
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