Re: ConTeXt + MetaUML

[Hans Hagen <pragma@wxs.nl>]

Renaud AUBIN wrote:
>
> Hi Hans,
>
> The example with clearboxes's crash:
this is probably due to the fact that clearboxes hooks into endfig


\setupoutput[pdftex]

\starttext

\startMPinclusions
 input boxes;
\stopMPinclusions

\startuseMPgraphic{my_uml_figure}
input metauml;

Class.A("Point")
       ("+x: int",
        "+y: int") ();

Class.B("Circle")
       ("radius: int")
       ("+getRadius(): int",
        "+setRadius(r: int):void");

topToBottom(45)(A, B);

drawObjects(A, B);

clink(aggregationUni)(A, B);
\stopuseMPgraphic

\placefigure[here]{none}{\useMPgraphic{my_uml_figure}}

\stoptext

this only works when in boxes.mp, we have:

extra_beginfig := extra_beginfig
  & "boxjoin();save pic_,sproc_,pproc_;def clearboxes=enddef;";
extra_endfig := extra_endfig & " clearboxes";

(space added before clearboxes in string)

(maybe i should clean up boxes.mp and preload that in metafun if only i 
know what it's meant for)

i suggest that you contact the author of metauml:

- rename the util_* files into metauml_util_* in order to prevent 
clashes with other util_* files
- load all files into the main file, so that you get rid of the 
redundant file reads (loading  quits when the files are already 
loaded,but best do some testing before they are input)
- provide a metauml_preload.mp file that preloads e.g. boxes.mp so that 
you can do

\startMPinclusions
 input metauml_preload;
\stopMPinclusions

\startuseMPgraphic{my_uml_figure}
input metauml;
\stopuseMPgraphic

- provide "load_metauml" that loads once only, so that you can do

\startMPinclusions
 input metauml_preload;
\stopMPinclusions

\startuseMPgraphic{my_uml_figure}
load_metauml;
\stopuseMPgraphic

\startuseMPgraphic{my_second_uml_figure}
load_metauml;
\stopuseMPgraphic

and get only one load when you collect graphics instead of runtime 
processing

Hans


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