Help/PloticusPlugin
The Ploticus plugin passes all its arguments to the Ploticus binary and displays the result as PNG, GIF, EPS, SVG, SVGZ or SWF. Ploticus is a free, GPL, non-interactive software package for producing plots, charts, and graphics from data. See http://ploticus.sourceforge.net/doc/welcome.html
Ploticus uses a cache expire date of days.
Usage
<<Ploticus device||=png [ploticus options...]
multiline ploticus script ...
>>
or without any script: (not tested)
<<Ploticus -prefab vbars
data=myfile.dat delim=tab y=1
clickmapurl="http://mywiki.url/wiki/?pagename=@2"
clickmaplabel="@3" -csmap
>>
TODO: PloticusSql - create intermediate data from SQL. Similar to SqlResult plugin, just in graphic form. For example to produce nice looking pagehit statistics or ratings statistics. Ploticus has its own sql support within #getproc data, but this would expose security information.
Arguments
Argument |
Description |
Default value |
|---|---|---|
device |
gif, png, jpeg, svg, svgz, eps, swf. Any -T parameter supported by Ploticus. |
png |
data |
optionally add data by <!plugin-list !> pagelist plugins. See Help:WikiPlugin |
|
alt |
alt text for the image |
|
-prefab |
use the given prefab script (may need PLOTICUS_PREFABS) |
|
-csmap |
If a clickable map should be produced (not yet tested) passed to Ploticus as -csmap -mapfile $tempfile.map |
|
help |
Show a help screen |
All other arguments are used as source to Ploticus.
Known Problems
For Windows you need either a gd library with GIF support or a Ploticus with PNG support. This comes only with the Cygwin build so far.
Optional Configuration
- config.ini
- PLOTICUS_EXE = pl.exe (on Windows) PLOTICUS_EXE = /usr/local/bin/pl (elsewhere)
prefabs need the environment variable PLOTICUS_PREFABS. Default: /usr/share/ploticus. Maybe also set by the config variable PLOTICUS_PREFABS.
See also Help:WikiPluginCached options in config.ini.
Examples
Sample Pie Chart:
<<Ploticus device||=png alt="Sample Pie Chart"
#proc page
#if @DEVICE in gif,png
scale: 0.7
#endif
// specify data using {proc getdata}
#proc getdata
data: Brazil 22
Columbia 17
"Costa Rica" 22
Guatemala 3
Honduras 12
Mexico 14
Nicaragua 28
Belize 9
United\nStates 21
Canada 8
// render the pie graph using {proc pie}
#proc pie
firstslice: 90
explode: .2 0 0 0 0 .2 0
datafield: 2
labelfield: 1
labelmode: line+label
center: 4 4
radius: 2
colors: yellow pink pink pink pink yellow pink
labelfarout: 1.05
>>
