Hi Adrian: I tried lat_grid with this command. lat_grid sc -c -s 2 -o cubegrid.off It worked fine and I was able to view with antiview and convert to EIG for...
Hi: Working more on lat_grid I have come around to this. Am just sticking with the simple cubic (sc). With: lat_grid -s 1 sc 3 | antiview I get a nice cubic...
Hi dharmraj ... It was a good idea to try the double -s option. Some programs allow options to be specified multiple times but in this case it is just the last...
... Hi: Thanks for the tip on combining two off files. I will give it a shot. I was also trying to figure out using your programs how to build a simple...
... I was using these programs this one is free and allows six equations http://www.graphcalc.com/download.shtml this has a free version and you get five...
Hi dharmraj ... Sometimes the easiest way is to hand edit the OFF file! Here is a tetrahedron in cube in dodecahedron file I built a while back (it could do...
Hi Adrian, ... table I have looked at this and building mapping tables was the best way to go. I didn't know what to expect, but it began working fairly...
Hi Adrian, Here is the code I have to create the tables. There are some debug statementes active in it. Roger void build_circuit_table(int ncon_order, int...
Hi Adrian, ... On a lark I decided to try multiplying by 4 instead. This actually seems to work but now twist does come into play. For example on the 36/6...
Hi Adrian, ... Whoops. This fixed some situations and messed up others. It worked better when multiplied by 2. Now I am at a loss as to what to try next. Roger...
Hi Roger ... I haven't had a look yet but if you send me your current program I could take a look at the code for the colouring method tomorrow morning. ...
Hi Roger ... I had a look at the code and in the above it should be int d = gcd(n, 2*t); With this change the colouring no longer matches between the halves....
Hi Adrian, ... I tried this one line change and it is more than just rotating the colors. It is because I don't reverse the colors for the front side as you...
Hi Roger ... .. ... That is right, the mapping I gave in my example message was "pi is mapped to p'j with a flip about p0 and a rotation of T hence pi ->...
Hi Adrian, ... Thanks for the help on this. The models are now colored correctly for point cuts and duals. I finally listened to what you said about coloring...
Hi Adrian, ... I implimented this as an option. These colorings are quite nice. ... And this. What I mean by "circuit number" is that the number in the circuit...
Hi Roger ... Does it also work with the hybrids (having an odd twist on the big polygon)? ... I am pleased it all worked out! It has made me think about my...
Hi Adrian, ... The colorings are the same. I put up a warning for this. I don't think hybrids can have symmetrical color because they are not symmetric top to...
Hi Adrian, ... I believe the smooth model would not be self dual. Say we continue to divide faces into smaller parts. There would always be one more face than...
Adrian, Oh my, the more I look at it even the odd n-icons are not strictly self dual. They have the same number of verts/faces when twist is 0, but not when...
Hi Adrian, ... I took the concept of duals out of the program. The only mention of them is in info when twist is 0. I had already eliminiated the -s option so...
Hi Roger ... I think you are right to call them duals, it is just that it is a polygonal rather than a polyhedral duality. If you fix the flip axes and dualise...
Hi Adrian, ... It may be that the the facet polyhedral forms are not exactly dual. But I think I may have jumped the gun on deciding that one with continuous...
Hi, I changed the language about n-icons duals on the web page to the following: For every Point Cut Even Order N-icon N, there is a Even Order Side Cut...
Hi Roger ... Taken as surfaces swept out I think they probably are spherical reciprocals, although I haven't found a reference for a definition that applies to...
Hi Adrian, ... There isn't a lot out there on the duals of conic sections. What I have done is compared rough and smoother polyhedra and extrapolated that to...
Hi Roger ... I have had a think about this. If you have a surface that is smooth everywhere then each point P on the surface is associated with a position...
Hi, I've finished the rebuild of the n_icons program. It is here. http://www.interocitors.com/tmp/n_icons.zip This is a list of the changes (included in...
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