[metapost] Clipped svg output

[luigi scarso]

On Mon, 9 Jan 2023 at 16:33, Lutz Haseloff <lutz.haseloff at toppkieker.info>
wrote:

> Hi all,
>
> the svg output of recent metapost (linux and windows) seems to be clipped
> or the viewbox of the svg is shifted a small amount down and right.
>
> My test.mp is:
>
> outputformat := "svg";
> outputtemplate := "%j.%{outputformat}";
> beginfig(1)
> draw fullcircle scaled 20;
> endfig;
> end
>
> The resulting svg included in a context lmtx file:
>
> \starttext
> \startTEXpage
> \externalfigure[test.svg][conversion=mp]
> \stopTEXpage
> \stoptext
>
> eps and png output is ok.
>
> Has it to do with the recent change in the svg clippath?
> Am I doing something wrong?
>
> Greetings
>
> Lutz
> --
> http://tug.org/metapost/


hm, I think we should consider the pen; fig 1 is almost ok without shift
because the pen is very thin;
fig 2 is ok only if  I shift the fullcircle  of half pen :

outputformat := "svg";
outputtemplate := "%j-%c.%{outputformat}";
beginfig(1)
pickup pencircle scaled 0.01;
draw fullcircle scaled 20 ;
draw (10,-10)--(10,10)--(-10,10)--(-10,-10)--(10,-10) withpen pencircle
scaled 0.01 withcolor red;
endfig;
beginfig(2)
pickup pencircle scaled 1;
draw fullcircle scaled 20 shifted (0.5,-0.5);
draw (10,-10)--(10,10)--(-10,10)--(-10,-10)--(10,-10) withpen pencircle
scaled 0.01 withcolor red;
endfig;
end

--
luigi
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