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The new version of Chart Plugin is available.

This version is not compatible with previous versions of plugin, because it’s based on OFC-2 and the others on OFC.

OFC-2 uses JSON to populate the chart:

{“title”:{“text”:”Mon Mar 09 14:56:10 BRT 2009″},”is_decimal_separator_comma”:0,”elements”:[{"values":[9,8,7,6,5,4,3,2,1],”font-size”:10,”type”:”line”}],”num_decimals”:2,
“is_fixed_num_decimals_forced”:0,”is_thousand_separator_disabled”:0}

You don’t need to create JSON manually, grails plugin includes a Java API for OFC called jofc2, thats provides a programatically approach to generate the JSON data. The same json above can generate with:

new Chart(new Date().toString())
.addElements(new LineChart()
.addValues(9, 8, 7, 6, 5, 4, 3, 2, 1))

In soon a DSL will be created in plugin to allow creation of charts easily, and you are  free to create your way or use another java library to generate the JSON data.

To install plugin just type:

grails install-plugin ofchart

The use of plugin is extremely easy, first you need to add some resources in you page, in head section put:

<ofchart:resources/>

So you are ready to put the chart in your page:

<ofchart:chart name=”demo-chart” url=”${ createLink( action: ‘load’ )}” width=”400″ height=”200″/>

Just this, now you are ready to use the open flash chart in your grails applications.

To see a demo, checkout the plugin from svn:

svn checkout http://svn.codehaus.org/grails-plugins/grails-ofchart/tags/RELEASE_0_6/ ofchart

run with:

grails run-app

And go to:

http://localhost:8080/ofchart/demo

This is the first version with the OFC2 , so it does not have many features, if you have some suggestion, please open a issue in jira.

For further information about plugin, see the official wiki page.

For information and documentation about jofc2 library see the official web page.