From: Alfredo Catalina via ntg-context <ntg-context@ntg.nl>
Cc: Alfredo Catalina <alfredo.catalina@gmail.com>,
mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Laundry symbols (now: altered picture)
Date: Sun, 2 Jan 2022 18:10:55 +0100 [thread overview]
Message-ID: <CAJ0n9ed2j+BiN0H3Gd4JAwwsDCTsCE+GzAhn4sxFoqno5AFsLg@mail.gmail.com> (raw)
In-Reply-To: <adc5deeb-4420-e0e4-b8cb-8d17628fea2a@xs4all.nl>
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Great! Thanks Hans, now it works. I replaced the "draw externalfigure"
commands by
draw externalfigure "./skysprite.png" xsized 4u ysized 5u shifted (0u,-0u);
draw externalfigure "./sandsprite.png" xsized 4u ysized 5u shifted (0u,-5u);
Best regards
On Sun, Jan 2, 2022 at 3:36 PM Hans Hagen <j.hagen@xs4all.nl> wrote:
> On 1/2/2022 3:12 PM, Alfredo Catalina via ntg-context wrote:
> > I'm trying to use ConTeXt with Metafun to produce a map of a videogame I
> > am working on. In fact I did it 9 years ago but it seems that now it
> > doesn't work.
> >
> > I have two 32 pixels wide by 40 pixels high sprites. They are saved in
> > the skysprite.png and sandsprite.png files. Since 32 = 4 x 8 and 40 = 5
> > x 8, the width/height ratio is 4/5.
> >
> > This should produce a page with a sky sprite and a sand sprite, one
> > below the other. It worked in the past. Each sprite should be 4 x 0.095
> > cm = 0,38 cm wide and 5 x 0.095 cm = 0.475 cm high:
> >
> > \starttext
> > \setupMPinstance[metafun][textstyle={\switchtobodyfont[termes,8pt]}]
> > \startuseMPgraphic{mapa}
> > u:=.095cm;
> > draw externalfigure "./skysprite.png" xscaled 4u yscaled 5u shifted
> > (0u,-0u);
> > draw externalfigure "./sandsprite.png" xscaled 4u yscaled 5u shifted
> > (0u,-5u);
> > \stopuseMPgraphic
> > \useMPgraphic{mapa}
> > \stoptext
> >
> > But instead I got two huge sprites of 2.8 cm x 4.4 cm.
> >
> > Am I forgetting something?
> Originally that worked because the image was always 'included' at 1 bp
> and then scaled but that was (1) inaccurate and (2) a bit depending on
> the image and (3) could overflow metapost.
>
> Use xsized and ysized instead (absolute measures instead of scaling the
> unknown)
>
> Hans
>
> -----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
>
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prev parent reply other threads:[~2022-01-02 17:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-05 13:18 Procházka Lukáš Ing. - Pontex s. r. o.
2012-06-05 14:26 ` Marco
2012-06-05 14:32 ` Wolfgang Schuster
2012-06-05 14:57 ` Procházka Lukáš Ing. - Pontex s. r. o.
2012-06-05 15:01 ` Wolfgang Schuster
2012-06-05 15:13 ` Procházka Lukáš Ing. - Pontex s. r. o.
2012-06-05 16:06 ` Wolfgang Schuster
2012-06-06 6:40 ` Procházka Lukáš Ing. - Pontex s. r. o.
2022-01-02 14:12 ` Alfredo Catalina via ntg-context
2022-01-02 14:36 ` Hans Hagen via ntg-context
2022-01-02 17:10 ` Alfredo Catalina via ntg-context [this message]
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