Difference between revisions of "Enabling math markup"
From Organic Design wiki
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| − | {{info| | + | {{info|Use this procedure to add math rendering support which is not included in the [[install a new server]] procedure by default as it requires many additional program libraries (about 200MB worth)}} |
| − | + | OCaml 3.06 or later from [http://caml.inria.fr caml.inria.fr] is required to compile ''texvc'' | |
| − | + | {{code|<pre> | |
| − | + | apt-get install dvipng tetex-extra cjk-latex ocaml | |
| − | + | </pre>}} | |
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| + | Run ''make'' from within the MediaWiki's ''math'' directory to build the ''texvc'' binary on your system. | ||
Make sure the directories 'tmp' and 'math' under 'images' exist and are writable. | Make sure the directories 'tmp' and 'math' under 'images' exist and are writable. | ||
| − | ==LocalSettings.php customization== | + | == LocalSettings.php customization == |
The following lines need to be added; | The following lines need to be added; | ||
{{code|<PHP> | {{code|<PHP> | ||
| − | $wgUseTex = true; | + | $wgUseTex = true; # and |
| − | $wgTexvc | + | $wgTexvc = 'usr/bin/texvc'; # alternative location from 'sudo apt-get install mediawiki-math' installation |
$wgMathDirectory = "$IP/images/math"; # optional | $wgMathDirectory = "$IP/images/math"; # optional | ||
</PHP> | </PHP> | ||
}} | }} | ||
| − | ==See also== | + | == See also == |
*[http://www.mwusers.com/forums/showthread.php?t=8168&highlight=math Thread on mwusers] | *[http://www.mwusers.com/forums/showthread.php?t=8168&highlight=math Thread on mwusers] | ||
| + | *[[:Category:Articles containing maths|Articles containing maths]] | ||
| + | *There was a problem extracting the database on 13/11 due to duplicate entries in the math table, see [[13 November 2006]]. | ||
| + | |||
| + | == Example == | ||
| + | The following maths code | ||
| + | {{code|<pre><math> | ||
| + | e^x = \sum_{n = 0}^{\infty} {x^n \over n!} = 1 + x + {x^2 \over 2!} + {x^3 \over 3!} + {x^4 \over 4!} + \cdots | ||
| + | </math></pre>}} | ||
| + | |||
| + | Should gives the following output | ||
| + | {{code|<math>e^x = \sum_{n = 0}^{\infty} {x^n \over n!} = 1 + x + {x^2 \over 2!} + {x^3 \over 3!} + {x^4 \over 4!} + \cdots</math>}} | ||
| + | |||
| + | == Transparency == | ||
| + | I replaced the line defining the ImageMagick ''convert'' command in ''/wiki/math/render.ml'' which makes it output a transparent PNG and also increases the quality by rendering the vector larger and downsizing with the default ''Mitchell'' filter. After making changes to ''render.ml'', you must rebuild the ''texvc'' executable by issuing a ''make clean'' and ''make''. | ||
| + | {{code|<pre> | ||
| + | let cmd_convert tmpprefix finalpath = "convert -quality 100 -density 480 " \ | ||
| + | ^ tmpprefix ^ ".ps -negate -unsharp 8 -resize 25% " ^ finalpath ^ " >/dev/null 2>/dev/null \ | ||
| + | && convert " ^ finalpath ^ " -fill black -colorize 100% " ^ finalpath ^ ".png \ | ||
| + | && composite -compose CopyOpacity " ^ finalpath ^ " " ^ finalpath ^ ".png " ^ finalpath | ||
| + | </pre>}} | ||
Revision as of 10:19, 14 January 2009
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Enabling math markup Organic Design procedure |
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OCaml 3.06 or later from caml.inria.fr is required to compile texvc
Run make from within the MediaWiki's math directory to build the texvc binary on your system.
Make sure the directories 'tmp' and 'math' under 'images' exist and are writable.
LocalSettings.php customization
The following lines need to be added;
See also
- Thread on mwusers
- Articles containing maths
- There was a problem extracting the database on 13/11 due to duplicate entries in the math table, see 13 November 2006.
Example
The following maths code
Should gives the following output
Transparency
I replaced the line defining the ImageMagick convert command in /wiki/math/render.ml which makes it output a transparent PNG and also increases the quality by rendering the vector larger and downsizing with the default Mitchell filter. After making changes to render.ml, you must rebuild the texvc executable by issuing a make clean and make.
