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From: Hans Hagen <pragma@wxs.nl>
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Subject: Re: Getting closer
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David Arnold wrote:

> I can resize the graphics in Metapost, but how would I scale and resize in
> Context one the graphics are already drawn?

Hm. The graphics you're refering too concern backgound and graphics
generated with the right dimensions. You can reuse them by putting them
in a buffer: 

\starttext

\startbuffer[hans]
  \startuseMPgraphic{dummy}
    fill unitsquare scaled 100 withcolor red ;
  \stopuseMPgraphic
  \useMPgraphic{dummy}
\stopbuffer

\externalfigure[hans.tmp][width=3cm]
\externalfigure[hans.tmp][width=2cm]
\externalfigure[hans.tmp][width=1cm]

\useexternalfigure[bighans][hans.tmp][width=3cm]
\useexternalfigure[medhans][hans.tmp][width=4cm]

\placefigure{One}{\externalfigure[bighans]}
\placefigure{Two}{\externalfigure[medhans]}

\stoptext

Actually, this can be done with tables and text too! Using reusable
graphic is sort of redundant here. 

Normally graphics are external. In that case you make a MP graphic
(separate file) and just include it with: 

\externalfigure[something.2][width=4cm]

given that beginfig(2) etc is used. 

Hans

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