Command/startMPinclusions
< Command
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Contents
\startMPinclusions ... \stopMPinclusions
Summary
The environment \startMPinclusions ... \stopMPinclusions is used for general MetaPost setups.
Settings
| \startMPinclusions[...]{...} ... \stopMPinclusions | |
| [...] | + |
| {...} | metafun minifun extrafun lessfun doublefun binaryfun decimalfun mprun metapost nofun doublepost binarypost decimalpost simplefun |
Description
Inside \startMPinclusions one can specify MetaFun code that you would like to be present in your MetaPost instance. It is generally used to define MetaPost functions, or to input files that contain them.
Examples
Example 1
The following example defines a create_wave macro that is then used for the page background.
\startMPinclusions vardef create_wave = path wave; wave := (0, 0); % Number of bezier points along the wave. wave_resolution := 20; % Number of full wave cycles. wave_cycles := 2; for x = 0 step (1 / wave_resolution) until 2 wave_cycles: wave := wave .. (x, sin( x * pi )); endfor; % Return the path wave enddef; \stopMPinclusions \startuseMPgraphic{page:ThemeBackground} path wave; wave := create_wave; draw wave xyscaled( 60, 20 ) withpen pencircle scaled 1mm; \stopuseMPgraphic \defineoverlay[page:ThemeBackground][\uniqueMPgraphic{page:ThemeBackground}] \starttext \setupbackgrounds[page][background={page:ThemeBackground}] \startchapter \input knuth \input zapf \input knuth \stopchapter \stoptext
Multiple Inclusions
To use multiple \startMPinclusions that should be combined, use [+]. For example, the following code will fail because the second inclusion overwrites the first:
\startMPinclusions path a ; \stopMPinclusions \startMPinclusions a := (0,0) -- (1cm,0) ; \stopMPinclusions
Use [+] to appended the second inclusion after the first:
\startMPinclusions path a ; \stopMPinclusions \startMPinclusions[+] a := (0,0) -- (1cm,0) ; \stopMPinclusions
