Inlcuding Metapost

[David Arnold <darnold@northcoast.com>]

All,

I want to put metapost graphics in my file. This works, but I have to run
texexec twice. Hmmm... Why?

% interface=en output=pdf

\starttext

\setuppapersize[S6][S6]

\setupbodyfont[pos,14.4pt]

\setupcolors[state=start]

\setupinteraction[state=start]

There is a \gotobox {\tooltip {last page} {indeed, klicking here
will bring you to the last page}} [nextpage] too in this document.

\MPinclusions{input mp-tool}

\startreusableMPgraphic{pb}
path squares[];
numeric side;
side=10cm;
squares0=unitsquare scaled side;
draw squares0;
y1=0;x2=side;
x1=side/25;y2=x1;
d=angle(z2-z1);
r=abs(z2-z1)/side;
for i:=1 upto 80:
squares[i]:=squares[i-1] shifted (-side/2,-side/2)
rotated d scaled r shifted (side/2,side/2);
draw squares[i] withcolor (i/100)[blue,green];
endfor
\stopreusableMPgraphic

\reuseMPgraphic{pb}\reuseMPgraphic{pb}\reuseMPgraphic{pb}\reuseMPgraphic{pb}
\quad

\page

>From this it follows that there is also a \gotobox {\tooltip
{first page} {this button lets you go to the first page}}
[firstpage].

\stoptext

Also, this is probably not the right way to do things, so I am open to
suggestion from the Maestros. Please advise. 

Also, I would like to center, scale, float the MP graphic, etc. I would
love to see how.