Difference between revisions of "MetaPost"

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(dont use 'texexec' in mkiv)
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* for mkiv run
* for mkiv run
   texexec --lua test.tex                                                                                                                                                         
   context test.tex                                                                                                                                                         
* that should create a pdf file test.pdf
* that should create a pdf file test.pdf

Revision as of 14:36, 10 January 2011

< Math, MetaFun, Graphics

MetaPost is a graphical programming language, based on Donald Knuth's MetaFont. Normally MP graphics are converted to PostScript and used with dvips, but ConTeXt can use it directly with PDF (see MPtoPDF).

MetaPost is ConTeXt's "native" graphics mode, see MetaFun.

Documentation & Tutorials

Troubleshooting plain MetaPost

  • Test if MetaPost is installed on your system.
  • create test.mp containing this:
  draw fullcircle scaled 3cm ;                                                                                                                                                 
endfig ;                                                                                                                                                                       
end ;      
  • apply MetaPost on the testfile
mp test.mp
mpost test.mp
  • that should create a postscript file test.1
  • open test.1 with a postscript viewer like ghostview, okular ... You should see a circle.

Troubleshooting MetaPost embedded in ConTeXt

  • create test.tex containing this:
  draw fullcircle scaled 3cm ;                                                                                                                                                 
  • for mkii you need to have write18 support enabled and run
 texexec --pdf test.tex 
  • for mkiv run
 context test.tex                                                                                                                                                         
  • that should create a pdf file test.pdf
  • open test.pdf with a pdf viewer like acroread, okular... You should see a circle.

Different Packages, Extensions & Applications of Metapost

  • finomaton - drawing finite state automata
  • statsmac - metapost macros for statistics graphs
  • MetaUML - MetaPost library for typesetting UML diagrams

3D support

TODO: needs major review (See: To-Do List)

MetaPost relatives

Font Creation

3D drawing

  • Asymptote - inspired by MetaPost & fully generalizes MetaPost path construction algorithms to three-dimensions

Using MP in ConTeXt

The first way is a usable graphic. Such a graphic is calculated anew each time it is used. An example:

  fill fullcircle scaled 5cm withcolor red;


As said, this graphic is calculated each time it is placed, which can be time consuming. Apart from the time aspect, this also means that the graphic itself is incorporated many times. Therefore, for graphics that don’t change, CONTEXT provides reusable graphics:

  fill fullcircle scaled 200pt withcolor .625yellow;


When reusing a graphic is not so important and you just want to include something inline, you can also use the following:

  fill fullcircle scaled 200pt withcolor .625yellow;

See also section 3.3 of MetaFun manual.

Other Links