Re: [NTG-context] metapost fill between outlines
\startMPpage path p ; p := fullcircle scaled 1cm ; path q ; q := fullcircle scaled .5cm ; path r ; r := p -- reverse q -- cycle ; drawarrow r withcolor green ; fill r withcolor red ; \stopMPpage
This works here. Based on this I can now cut out the smaller one from a fullcircle, but it still fails with two paths having controls (or maybe because of something else).
Here are the examples: %%% \starttext \framed[background=color,backgroundcolor=red,height=fit,width=fit]{ \startMPcode path p[]; p1 := fullcircle scaled 2cm; p2 := (7.488280,12.293000)..controls (4.933590,12.293000) and (1.265620,6.226560)..(1.265620,2.531250)..controls (1.265620,1.562500) and (1.695310,0.835938)..(2.722660,0.835938)..controls (5.230470,0.835938) and (8.972660,7.035160)..(8.972660,10.296900)..controls (8.972660,11.269500) and (8.703120,12.293000)..(7.488280,12.293000)--cycle; p3 := p1 -- reverse p2 -- cycle; fill p3 withcolor black; \stopMPcode } \stoptext %%% This works. %%% \starttext \framed[background=color,backgroundcolor=red,height=fit,width=fit]{ \startMPcode path p[]; p1 := (6.949220,13.046900)..controls (9.539060,13.046900) and (10.023400,10.781200)..(10.023400,8.679690)..controls (10.023400,5.335940) and (6.949220,0.000000)..(3.234380,0.000000)..controls (0.890625,0.000000) and (0.000000,1.886720)..(0.000000,3.828120)..controls (0.000000,8.492190) and (3.316410,13.046900)..(6.949220,13.046900) --cycle; p2 := (7.488280,12.293000)..controls (4.933590,12.293000) and (1.265620,6.226560)..(1.265620,2.531250)..controls (1.265620,1.562500) and (1.695310,0.835938)..(2.722660,0.835938)..controls (5.230470,0.835938) and (8.972660,7.035160)..(8.972660,10.296900)..controls (8.972660,11.269500) and (8.703120,12.293000)..(7.488280,12.293000)--cycle; p3 := p1 -- reverse p2 -- cycle; fill p3 withcolor black; \stopMPcode } \stoptext %%% This doesn't work. (It fails already if "p1 := (0,0)..(0,20)..(20,20)..cycle;" or similar.) Any hints? Adam
\starttext \framed[background=color,backgroundcolor=red,height=fit,width=fit]{ \startMPcode path p[]; p1 := (6.949220,13.046900)..controls (9.539060,13.046900) and (10.023400,10.781200)..(10.023400,8.679690)..controls (10.023400,5.335940) and (6.949220,0.000000)..(3.234380,0.000000)..controls (0.890625,0.000000) and (0.000000,1.886720)..(0.000000,3.828120)..controls (0.000000,8.492190) and (3.316410,13.046900)..(6.949220,13.046900) --cycle;
p2 := (7.488280,12.293000)..controls (4.933590,12.293000) and (1.265620,6.226560)..(1.265620,2.531250)..controls (1.265620,1.562500) and (1.695310,0.835938)..(2.722660,0.835938)..controls (5.230470,0.835938) and (8.972660,7.035160)..(8.972660,10.296900)..controls (8.972660,11.269500) and (8.703120,12.293000)..(7.488280,12.293000)--cycle;
p3 := p1 -- reverse p2 -- cycle; fill p3 withcolor black; \stopMPcode } \stoptext %%% This doesn't work. \starttext \framed[background=color,backgroundcolor=red,height=fit,width=fit]{ \startMPcode
On 02/21/2011 01:12 PM, Reviczky, Adam wrote: path p[]; p1 := (6.949220,13.046900)..controls (9.539060,13.046900) and (10.023400,10.781200)..(10.023400,8.679690)..controls (10.023400,5.335940) and (6.949220,0.000000)..(3.234380,0.000000)..controls (0.890625,0.000000) and (0.000000,1.886720)..(0.000000,3.828120)..controls (0.000000,8.492190) and (3.316410,13.046900)..(6.949220,13.046900) --cycle; p2 := (7.488280,12.293000)..controls (4.933590,12.293000) and (1.265620,6.226560)..(1.265620,2.531250)..controls (1.265620,1.562500) and (1.695310,0.835938)..(2.722660,0.835938)..controls (5.230470,0.835938) and (8.972660,7.035160)..(8.972660,10.296900)..controls (8.972660,11.269500) and (8.703120,12.293000)..(7.488280,12.293000)--cycle; drawarrow p1 withcolor green ; drawarrow p2 withcolor blue ; p3 := p1 -- p2 -- cycle; fill p3 withcolor black; \stopMPcode } \stoptext Maybe you can know why now, from the above code. The direction of the path is important.
participants (2)
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Hongwen Qiu -
Reviczky, Adam