[NTG-context] Re: Problem with Metapost

[Fabrice Couvreur <fabrice1.couvreur@gmail.com>]

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Hi Mikael,
It works, thank you very much.
Fabrice

Le dim. 3 nov. 2024 à 17:08, Mikael Sundqvist <mickep@gmail.com> a écrit :

> Hi,
>
> you get an error of redundant equations. Try
>
>             numeric ymax,xmax ; ymax := 7 ; xmax := 7;
>             numeric xmin,ymin ; xmin :=-1 ; ymin := -1;
>
> and it might work.
>
> (It is a bit weird that ymax = 7 several times result in an error, but ...
> )
>
> /Mikael
>
> On Sun, Nov 3, 2024 at 4:47 PM Fabrice Couvreur
> <fabrice1.couvreur@gmail.com> wrote:
> >
> > Hi,
> > I think I have never encountered this problem. Recently, I can no longer
> have a succession of figures with Metapost; only the first one appears.
> > Thanks.
> > Fabrice
> >
> > \starttext
> > \dorecurse{3}{\startMPcode
> >             numeric u;
> >             u = 0.5cm;
> >             ymax = xmax = 7;
> >             xmin = ymin = -1;
> >             interim ahangle := 30;
> >             z0 = (1u,1u);
> >             z1 = (2u,3u);
> >             z2 = (0,5u);
> >             path xx, yy;
> >             xx = ((xmin,0) -- (xmax,0)) scaled u;
> >             yy = ((0,ymin) -- (0,ymax)) scaled u;
> >             drawoptions(scaled .5 withcolor .7 white);
> >             for i = ceiling ymin upto floor ymax: draw xx shifted
> (0,i*u); endfor
> >             for i = ceiling xmin upto floor xmax: draw yy shifted
> (i*u,0); endfor
> >             drawoptions();
> >             path fuzz;
> >             fuzz = z0 -- z1 -- z2 -- cycle;
> >             fill fuzz withcolor 0.7[blue,white];
> >             draw fuzz withcolor blue;
> >             fill fuzz shifted(4u,1u) withcolor 0.7[blue,white];
> >             draw fuzz shifted(4u,1u) withcolor blue;
> >             drawoptions(withpen pencircle scaled 1pt);
> >             drawarrow z0 -- z0 shifted (4u,1u);
> >             drawarrow z1 -- z1 shifted (4u,1u);
> >             drawarrow z2 -- z2 shifted (4u,1u);
> >             drawoptions();
> >             label("\im{\vec{v}}", (3.5u,3u));
> >             label.llft("\im{A}",z0);
> >             label.lrt("\im{B}",z0 shifted (4u,1u));
> >
> >           \stopMPcode}
> >
> >
> > \stoptext
> >
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