* Venn diagram @ 2006-01-20 5:08 David Arnold 2006-01-20 5:49 ` Aditya Mahajan 0 siblings, 1 reply; 5+ messages in thread From: David Arnold @ 2006-01-20 5:08 UTC (permalink / raw) All, I have: \startMPpage %figure library name: intersection %initialize scale numeric u; 10u=3in; %ellipses path A, B; A:=fullcircle xyscaled (4u,3u); B:=A shifted (2u,0); draw A withcolor red; label.ulft(btex $A$ etex, point 3 of A) withcolor red; draw B withcolor blue; label.urt(btex $B$ etex, point 1 of B) withcolor blue; %bounding box draw bbox currentpicture enlarged (0.5u,0.5u); \stopMPpage I need an easy way of shading these areas: 1. A intersect B 2. A union B 3. A intersect (complement of B) 4. (complement of A) intersect B Thanks ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Venn diagram 2006-01-20 5:08 Venn diagram David Arnold @ 2006-01-20 5:49 ` Aditya Mahajan 2006-01-20 18:22 ` Mojca Miklavec 0 siblings, 1 reply; 5+ messages in thread From: Aditya Mahajan @ 2006-01-20 5:49 UTC (permalink / raw) <--- On Jan 19, David Arnold wrote ---> > All, > > I have: > > \startMPpage %figure library name: intersection > > %initialize scale > numeric u; 10u=3in; > > %ellipses > path A, B; > A:=fullcircle xyscaled (4u,3u); > B:=A shifted (2u,0); > draw A withcolor red; > label.ulft(btex $A$ etex, point 3 of A) withcolor red; > draw B withcolor blue; > label.urt(btex $B$ etex, point 1 of B) withcolor blue; > > %bounding box > draw bbox currentpicture enlarged (0.5u,0.5u); > > \stopMPpage > > I need an easy way of shading these areas: > > 1. A intersect B > 2. A union B > 3. A intersect (complement of B) > 4. (complement of A) intersect B There is venn.mp on ctan. Using it you can do basic shading of intersection, union etc for 0,1,2 or 3 sets very quickly. Read the documentation in source for details. For example \startMPinclusions input venn; pair A,B,T[]; A = (.4venn_width-.5venn_circle_diameter,.5venn_height); B = (.6venn_width+.5venn_circle_diameter,.5venn_height); T1 = (.5venn_width , 0); T2 = (.5venn_width,.5venn_height-.5venn_circle_diameter); vardef venn_shade = red; \stopMPinclusions \startMPpage draw_venn_two(false,true,true,true); label.lft(btex $A$ etex,A); label.rt(btex $B$ etex,B); label.bot(btex $A\cup B$ etex,T2); \stopMPpage \startMPpage draw_venn_two(false,false,true,false); label.lft(btex $A$ etex,A); label.rt(btex $B$ etex,B); label.bot(btex $A\cap B$ etex,T2); \stopMPpage \startMPpage draw_venn_two(true,false,false,false); label.lft(btex $A$ etex,A); label.rt(btex $B$ etex,B); label.bot(btex $A'\cap B'$ etex,T2); \stopMPpage Perhaps one can combine the transparent color functionality of metapost with venn.mp to get really nice colors for intersections etc. Another related question, does anyone know of a good way to hash (hatch) a "set" (in general, any mp closed curve). I know that there is hatching.mp but I was wondering if there are better solutions. Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Venn diagram 2006-01-20 5:49 ` Aditya Mahajan @ 2006-01-20 18:22 ` Mojca Miklavec 2006-01-20 20:23 ` Hans Hagen 0 siblings, 1 reply; 5+ messages in thread From: Mojca Miklavec @ 2006-01-20 18:22 UTC (permalink / raw) On 1/20/06, Aditya Mahajan wrote: > <--- On Jan 19, David Arnold wrote ---> > > I need an easy way of shading these areas: > > > > 1. A intersect B > > 2. A union B > > 3. A intersect (complement of B) > > 4. (complement of A) intersect B > > There is venn.mp on ctan. Using it you can do basic shading of > intersection, union etc for 0,1,2 or 3 sets very quickly. Read the > documentation in source for details. For example Thanks a lot for the very nice example; > \startMPinclusions > input venn; > pair A,B,T[]; > A = (.4venn_width-.5venn_circle_diameter,.5venn_height); > B = (.6venn_width+.5venn_circle_diameter,.5venn_height); > T1 = (.5venn_width , 0); > T2 = (.5venn_width,.5venn_height-.5venn_circle_diameter); > vardef venn_shade = red; vardef venn_shade = red enddef; I tried the (transparent(.8,3,blue)) at that place, but it seems that either ConTeXt or Acrobat have problems here. It either compiled, but then Adobe Reader complained, if I tried to compile fill fullcircle scaled 3cm withcolor (transparent(.8,3,blue)); manually, then I got an error **\relax venn-mpgraph.3 (venn-mpgraph.3 ! Undefined control sequence. \handleMPspecialscommentx #1 ->\doifelse {#1}{10000}{\settrue \manyMPspecial... l.15 %%MetaPostSpecials: 2.0 123 1000 ? Missing character: There is no 1 in font nullfont! ... > Perhaps one can combine the transparent color functionality of > metapost with venn.mp to get really nice colors for intersections etc. Hans: please fix the typo on line 488 in mp-spec.mp. I copied the example from there and wondered why it didn't work (well, it still doesn't work - the problem described above). Mojca ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Venn diagram 2006-01-20 18:22 ` Mojca Miklavec @ 2006-01-20 20:23 ` Hans Hagen 2006-01-20 23:33 ` Mojca Miklavec 0 siblings, 1 reply; 5+ messages in thread From: Hans Hagen @ 2006-01-20 20:23 UTC (permalink / raw) Mojca Miklavec wrote: > >I tried the (transparent(.8,3,blue)) at that place, but it seems that >either ConTeXt or Acrobat have problems here. It either compiled, but >then Adobe Reader complained, if I tried to compile > fill fullcircle scaled 3cm withcolor (transparent(.8,3,blue)); >manually, then I got an error > > % fill fullcircle scaled 10cm withcolor transparant(8,.3,red) ; Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Venn diagram 2006-01-20 20:23 ` Hans Hagen @ 2006-01-20 23:33 ` Mojca Miklavec 0 siblings, 0 replies; 5+ messages in thread From: Mojca Miklavec @ 2006-01-20 23:33 UTC (permalink / raw) On 1/20/06, Hans Hagen wrote: > Mojca Miklavec wrote: > > > > >I tried the (transparent(.8,3,blue)) at that place, but it seems that > >either ConTeXt or Acrobat have problems here. It either compiled, but > >then Adobe Reader complained, if I tried to compile > > fill fullcircle scaled 3cm withcolor (transparent(.8,3,blue)); > >manually, then I got an error > > > > > % fill fullcircle scaled 10cm withcolor transparant(8,.3,red) ; > > Hans Thanks. Two typos then :) (transparant -> transparent). Mojca ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2006-01-20 23:33 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2006-01-20 5:08 Venn diagram David Arnold 2006-01-20 5:49 ` Aditya Mahajan 2006-01-20 18:22 ` Mojca Miklavec 2006-01-20 20:23 ` Hans Hagen 2006-01-20 23:33 ` Mojca Miklavec
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