Hi,
I have a bunch of similar graphics on a 7x7 where some lines have
exceptions for the endings and connections.
- When a line ends in one of the four corners the line end has an angle
of 45 degrees.
- When a line takes a turn the outer corner results also in a 45 degree
angle.
- Single points always use straight endings.
- Lines which end outside of a corner end with a straight line.
While I can get the desired result which a filled path I'm looking for a
solution where I have to set fewer control points.
The example below shows the simpler draw alternative where I need only a
start and end point versus the outline alternative where I need at least
twice as many points to get the desired output.
\starttext
\startuseMPgraphic{draw}
draw hlingrid(0, 7, 1, 7, 7) withpen pencircle scaled 1/20 shifted
(0.5,0.5) withcolor "darkgray" ;
draw vlingrid(0, 7, 1, 7, 7) withpen pencircle scaled 1/20 shifted
(0.5,0.5) withcolor "darkgray" ;
pickup pensquare scaled 1;
drawoptions(withcolor "red");
draw (1,7) -- (7,7) ;
draw (1,1) -- (3,1) -- (3,5) ;
draw (7,3) -- (5,3) -- (5,5) -- (7,5) ;
draw (7,1) ;
\stopuseMPgraphic
\startuseMPgraphic{fill}
draw hlingrid(0, 7, 1, 7, 7) withpen pencircle scaled 1/20 withcolor
"darkgray" ;
draw vlingrid(0, 7, 1, 7, 7) withpen pencircle scaled 1/20 withcolor
"darkgray" ;
drawoptions(withcolor "green");
fill (0,6) -- (7,6) -- (6,7) -- (1,7) -- cycle ;
fill (1,0) -- (2,0) -- (3,1) -- (3,5) -- (2,5) -- (2,1) -- (0,1) -- cycle ;
fill (7,2) -- (5,2) -- (4,3) -- (4,4) -- (5,5) -- (7,5) -- (7,4) --
(5,4) -- (5,3) -- (7,3) -- cycle ;
fill (6,0) -- (7,0) -- (7,1) -- (6,1) -- cycle ;
\stopuseMPgraphic
\startcombination[2*1]
{\scale[s=10]{\useMPgraphic{draw}}}{draw option}
{\scale[s=10]{\useMPgraphic{fill}}}{fill option}
\stopcombination
\startoverlay
{\scale[s=10]{\useMPgraphic{draw}}}
{\scale[s=10]{\useMPgraphic{fill}}}
\stopoverlay
\stoptext
Wolfgang
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