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antiprism

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Group Information

  • Members: 82
  • Category: Geometry
  • Founded: Nov 2, 2006
  • Language: English
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Messages 5752 - 5782 of 7747   Oldest  |  < Older  |  Newer >  |  Newest
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5752 Alan M
a.michelson Send Email
Mar 2, 2011
12:06 am
... are blended together. You can also see where two or three pentagrams are blended. ... It seems to look somewhat yellowish. ... and down on the B. It seems...
5753 Alan M
a.michelson Send Email
Mar 2, 2011
1:46 am
There's more at http://tech.groups.yahoo.com/group/Polytopia/messages/641?threaded=1&m=e&tidx=1...
5754 Roger Kaufman
vortexswirling Send Email
Mar 2, 2011
4:53 pm
Hi Alan, ... It took me a while to figure out what was going on here! Clearly the averages were different than expected. (In the meantime I found bugs in other...
5755 Steve
stevewaterman51 Send Email
Mar 2, 2011
6:30 pm
lads, re- area calcs... 1 different map projections distort the continental areas, differently. 2 in general, the continents are an irregular shape. 3 there is...
5756 Roger Kaufman
vortexswirling Send Email
Mar 2, 2011
7:22 pm
Hi Steve, ... My best computer science teacher was the one I had in comp sci 101. He had this saying, "if you can do it in your head, you can do it with a...
5757 Roger Kaufman
vortexswirling Send Email
Mar 2, 2011
7:45 pm
Hi Adrian, ... This speed up was fairly effective but there should be a better improvement. It has to traverse geom.edges() quite often. In the higher order of...
5758 Roger Kaufman
vortexswirling Send Email
Mar 2, 2011
11:59 pm
Hi Adrian, ... This is a worthy update. When generating uc21_n5/2k15 the 5/2k15 polygon iterated through polygon.edges() 2,928,940 time. After starting the...
5759 Alan M
a.michelson Send Email
Mar 3, 2011
3:32 am
... averages were different than expected. (In the meantime I found bugs in other places so no time was wasted) ... I use RGB I get 128 128 64 for the blended...
5761 Roger Kaufman
vortexswirling Send Email
Mar 6, 2011
2:00 pm
Hi Adrian, It doesn't seem like the point in triangle method should be so costly as it breaks out as soon as it finds a triangle with the point. On average it...
5762 Roger Kaufman
vortexswirling Send Email
Mar 9, 2011
5:41 pm
Hi Adrian, ... I know you've been away so not to create too many notes, hopefully you will read this one first. I will go quiet now and let you have time to...
5763 Alan Michelson
a.michelson Send Email
Mar 15, 2011
1:37 am
________________________________ From: Alan M <amichelson2002@...> To: antiprism@yahoogroups.com Sent: Wed, March 2, 2011 7:32:27 PM Subject: [antiprism]...
5764 Roger Kaufman
vortexswirling Send Email
Mar 16, 2011
6:20 pm
Hi Adrian, I am working on a way to find edges which are part of the same line. This could be accomplished by finding edges with the same edge normal,...
5765 Steve
stevewaterman51 Send Email
Mar 16, 2011
7:31 pm
Adrian, I made some wrl's but no longer have the off for them. I can even load the wrl in Antiview...but there is no wrl2off. Checking the net, no downloading...
5766 Roger Kaufman
vortexswirling Send Email
Mar 16, 2011
8:43 pm
Hi Steve, ... This is something I researched a long time back. The problem ended up being very complex and I abandoned it else it would have taken months of...
5767 Steve
stevewaterman51 Send Email
Mar 16, 2011
9:54 pm
Hi Roger, wondering if... Since Antiview displays sample.wrl as a POINT SET, ( which would be fine for me ) I should think there might be some way to take the...
5768 Steve
stevewaterman51 Send Email
Mar 16, 2011
10:06 pm
Adrian and Roger, How about this... an option in Antview to LIST the entire point set for the file shown on the screen ??? Or even better, still in Antiview,...
5769 Steve
stevewaterman51 Send Email
Mar 16, 2011
10:06 pm
Adrian and Roger, How about this... an option in Antview to LIST the entire point set for the file shown on the screen ??? Or even better, still in Antiview,...
5770 Roger Kaufman
vortexswirling Send Email
Mar 16, 2011
11:51 pm
Hi Steve, ... Some of the other programs read vrml the same way antiview does. If it is only points that you want then this will work off2crds tmp.wrl >...
5771 Steve
stevewaterman51 Send Email
Mar 17, 2011
12:45 am
Roger, ... so...if we can get the point set back...can we not also automatically make the convex hull FROM that point set ? so, say given a wrl, say, ...
5772 Adrian Rossiter
adrianrossiter Send Email
Mar 17, 2011
10:41 am
Hi Roger I am "half" around at the moment. I have seen your other emails and will try to take at look at them today and tomorrow. ... If you just need a...
5773 Adrian Rossiter
adrianrossiter Send Email
Mar 17, 2011
11:25 am
Hi Steve ... If a file isn't found to be OFF then all the Antiprism programs will assume it contains coordinate data, and try to extract this. So, if the...
5774 Roger Kaufman
vortexswirling Send Email
Mar 17, 2011
11:33 am
Hi Steve, ... If the model is convex then it is possible off2crds CONWcubOOZ11.wrl | conv_hull > CONWcubOOZ11.off Note that any original colors from the points...
5775 Steve
stevewaterman51 Send Email
Mar 17, 2011
11:55 am
Roger and Adrian, I tried to do your commands again...and well, it worked...as you suggested. This is real good...as trying to regenerate these Conways from...
5776 Adrian Rossiter
adrianrossiter Send Email
Mar 17, 2011
12:48 pm
Hi Roger ... This could be used for the surhedron. Find the polygons made by truncation at the same plane, merge and create the outer polygons. Now use the...
5777 Roger Kaufman
vortexswirling Send Email
Mar 18, 2011
3:19 am
Hi Adrian, ... I realized that the edge normals probably are not going to do the job. For a quick explanation say there are too faces that share edge AB. One...
5778 Roger Kaufman
vortexswirling Send Email
Mar 18, 2011
3:32 am
Hi Adrian, ... Using the retrograde face works great for merging adjacent planar faces. Remember I once had an idea for "de-triangulating" a model? This seems...
5779 Adrian Rossiter
adrianrossiter Send Email
Mar 18, 2011
10:04 am
Hi Roger ... You should be able to find the nearest point of the segment line to the origin (or some other point, e.g. the centroid), call it Q, and a...
5780 Adrian Rossiter
adrianrossiter Send Email
Mar 18, 2011
10:19 am
Hi Roger ... This might not be clear. The direction above is the direction *along* the line, i.e. the direction from one end point of the segment to the other....
5781 Adrian Rossiter
adrianrossiter Send Email
Mar 18, 2011
11:38 am
Hi Roger ... That is fine. I thought it was BSD at first, but the end part looked like MIT. It could be the University of Illinois/NCSA Open Source License,...
5782 Roger Kaufman
vortexswirling Send Email
Mar 18, 2011
1:52 pm
Hi Adrian, I think we are caught up on the other subjects. I am currently running some test code (based on your suggestion) to find edges which are the same...
Messages 5752 - 5782 of 7747   Oldest  |  < Older  |  Newer >  |  Newest
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