[NTG-context] Re: Triaging tikz error: Cannot parse this coordinate

8 Aug 2023


      ...
On 8/8/2023 6:13 PM, Xavier B. wrote:
...
After some time, I could write a minimal example with tikz with 
strange error: Cannot parse this coordinate.
Can someone help me to find the bug?
I attach the file and the log.
Help very appreciate
I run
  \starttikzpicture
    \foreach \p in {(6,2)}
    {
    \tracingall
      \startscope[shift={\p}]
         \draw[color=green!60, thick] (0,0) -- (1,1);
      \stopscope
    }
   \stoptikzpicture
looks like some parsing issue, are you sure that you can assign \p to 
shift this way?
On 8/8/2023 7:43 PM, Hans Hagen wrote:
puzzle:

\startMPcode
     draw textext ("\externalfigure[mill.png][height=1cm]") ;
     draw image (
         draw
             for p = (6,0), (7,0), (5,1), (6,1), (7,1), (1,2), (2,2), 
(3,2), (4,2), (5,2), (7,2), (0,3), (1,3), (3,3), (4,3), (8,3), (0,4), 
(7,4), (8,4), (0,5), (1,5), (2,5), (6,5), (7,5), (2,6), (3,6), (4,6), 
(5,6), (6,6), (3,7), (4,7), (5,7), (6,7) :
                 (
                     (0,0) -- (1,0) -- (1,1) -- (0,1) -- cycle &&&
                     (0,0) -- (1,1) &&
                     (0,1) -- (1,0)
                 ) shifted p &&
             endfor nocycle withcolor red ;
         draw
             for p = (6,2), (2,3), (5,3), (6,3), (7,3), (1,4), (2,4), 
(3,4), (4,4), (5,4), (6,4), (3,5), (4,5), (5,5) :
                 (
                     (0,0) -- (1,0) -- (1,1) -- (0,1) -- cycle &&&
                     (0,0) -- (1,1)
                 ) shifted p &&
             endfor nocycle withcolor green ;
     ) ysized 4cm withpen pencircle scaled .5pt ;
\stopMPcode


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                                           Hans Hagen | PRAGMA ADE
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