On 8/2/06, Thomas A. Schmitz wrote:
3. Is it possible to get a line/arrow dashed in two different colors, like red and blue?
Just out of curiosity I tried the following: picture dp; draw dashpattern(on 2 off 6) scaled 5pt withcolor blue; draw dashpattern(off 4 on 2 off 2) scaled 5pt withcolor red; dp := currentpicture; draw origin--(5cm,0) dashed dp; But of course "! Picture is too complicated to use as a dash pattern." So you have to draw the path twice with different color and pattern (you can write a macro for it of course if you need it often). beginfig(1); pickup pencircle scaled 2pt; picture dp[]; dp[1] := dashpattern(on 2 off 6) scaled 3pt; dp[2] := dashpattern(off 4 on 2 off 2) scaled 3pt; path p; p := (origin .. (2,1) .. (3,-1) .. (5,0)) scaled 3cm; draw p dashed dp[1] withcolor blue; draw p dashed dp[2] withcolor red; endfig; end. Mojca