How to customize BarChart ?

[ji]

Hi !

Simple question, as in the topic.

How can I cusotmize my BarChart ?

My JFreeChart object doesn't have any method, for example getPlot() e.t.c.

Please help

[oacis]

I think you will have to be a little more specific about what part of the JFreeChart you need to customise, i.e. Colours, Datasets, tick marks, scaling etc.

The simplest way to start using a chart is to use the ChartFactory static methods

Code: Select all

JFreeChart jFreeChart = ChartFactory.createBarChart("Chart title", "categoryAxisLabel", "ValueAxisLabel", categoryDataset, PlotOrientation.VERTICAL, true, false, false);

You can then get the plot by using

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jFreeChart.getCategoryPlot()

[ji]

Yeah , if I use ChartFactory i can't use method getPlot(). Why ? My JFreeChart object doesn't have any methods ?

[oacis]

What version of JFreeChart are you using?

Could you also post the code that you are trying to get the plot from?

[ji]

jfreechart-1.0.1

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JFreeChart chart = ChartFactory.createBarChart3D(her goes all params);

and then there are no methods for chart object.

i hit ctrl+space and no completions available !

[oacis]

What IDE are you using?

[ji]

Eclipse 3.0

[oacis]

I use eclipse 3.1 and 3.2 at the moment - you will need to attach the source code to the jar file for code completion.

This works in eclipse 3.1.0 so YMMV

Right click on the project and select
Build Path -> Configure Build Path...

Select the Libraries tab

Open up the tree on the jfreechart.jar entry (i.e. click the '+')

Click on the Source attachment: (None) entry

Click the Edit... button

Select the source folder for JFreeChart

[ji]

it's not working

[oacis]

Try this:

Highlight ChartFactory in the code
Press the F3 button
when the page opens there should be a button to attach source at the top...

[ji]

ok, it's working now !
thanks !
now I need to change values presented on the X and Y axis to ints. How can I do it ?