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Mar
24
awarded  Analytical
Mar
17
awarded  Scholar
Mar
17
accepted Generating “Penrose-style” drawings of surfaces
Mar
13
awarded  Commentator
Mar
13
comment Generating “Penrose-style” drawings of surfaces
Thanks very much. The animation suffers from the quiver problem I mentioned in my question, but now that I see it, it actually looks like this isn't really noticeable, at least with many points as you have here.
Mar
13
comment Generating “Penrose-style” drawings of surfaces
Fantastic. I am especially pleased that you have exposed parameters to tinker with here.
Mar
13
awarded  Nice Question
Mar
13
comment Generating “Penrose-style” drawings of surfaces
@belisarius Yes I was afraid of being asked that. I mean better in the sense of "more similar to the style seen in the book (e.g. in the Flickr images I linked to)". Of course, I expect since you are asking, that this is will not be precise enough! I can say what aspects of the style I'm having trouble replicating though. For instance, the combination of lighting and "salt-and-pepper" noise I am using doesn't get the quite the right density distribution of points. They should get much thicker at the edges, and be more sparse in the interior (at least for the sphere).
Mar
13
awarded  Student
Mar
13
asked Generating “Penrose-style” drawings of surfaces
Feb
24
awarded  Necromancer
Feb
24
awarded  Revival
Feb
24
answered Saving a notebook as a $\LaTeX$ file, with syntax highlighting preserved
Jan
17
awarded  Yearling
Dec
2
awarded  Organizer
Dec
2
revised Levels: how do they work?
I removed the levelscheme tag--I believe it refers to a specific package, not the general way levels are handled in Mathematica.
Dec
2
suggested suggested edit on Levels: how do they work?
Jul
25
comment Is it possible to generate a Hasse Diagram for a defined relation?
I'm not certain but I think there is directional information in the edges. It says in the link you posted that one should draw "a line segment or curve that goes upward [italicized in the original] from x to y whenever y covers x (that is, whenever x < y and there is no z such that x < z < y)"
Jul
25
comment Is it possible to generate a Hasse Diagram for a defined relation?
If the asker wants a true Hasse Diagram, surely he wants an automatic way to compute the transitive reduction of the directed graph generated by the binary relation. The arrows should be directed, I think, and the arrow between 1 and 3 shouldn't be there.
Jun
8
awarded  Enlightened