Gaps in StackedAreaChart

[Bowser]

Hello folks,

I am a new User of JFreeChart an i've got a Problem with the StackedAreaChart.
My Dataset works fine and this is how i create the Chart:

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 JFreeChart chart = ChartFactory.createStackedAreaChart(
            "MYStackedAreaChart",      
            "Category",                
            "Value",                   
            dataset,                  
            PlotOrientation.VERTICAL,  
            true,                     
            true,
            false
        );

When I create that Chart it has gaps between every Data at the Category. So in fact it looks like a Stacked Bar Chart.
I Don't know why the Chart is creating the gaps...
I don't have special settings for the plot or something else. Just the create Statements that i've posted.

I hope you can help me, that i'm able to fix the Problem.
Thank you!!!!

[Bowser]

Maybe my Dataset is interesting for you. So it looks like this:

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		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		dataset.setValue(1.0, series1, category1);
		dataset.setValue(3.0, series2, category1);
		dataset.setValue(5.0, series1, category2);
		dataset.setValue(2.0, series2, category2);

Here is the Problem as a Picture:

[img=http://img382.imageshack.us/img382/3427 ... emojy7.png[/img]

[Bowser]

Hi Guys,

unfortunately it seems, that I am the only one who has this problem!
Could i get some Feedback please....
I'm not sure where the Problem is. I'm trying to resolve it but it looks not good...

please Help me!

Thank You

[paradoxoff]

Have you tried

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JFreeChart.getCategoryPlot().getDomainAxis().setCategoryMargin(0.0)

[Bowser]

Hello paradoxoff,

that works!
Thank You!
I don't know that such method exists. Thank you.
By the way is there any Method where i can set the colours for the series?
Something like series1.setColour(0,0,0)

Thank you!!!!

[paradoxoff]

A CategoryPlot manages a list of datasets and a list of renderers. These can be assigned to the plot via

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plot.setDataset(int index, CatgoryDataset set)

and

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plot.setRenderer(int index, CategoryItemRenderer renderer)

The i-th dataset is visualized by the i-th renderer.
Within a dataset, you can have several series. The format for the series can be determined by one of the many methods declared in CategoryItemRenderer and defined in AbstractRenderer or any concrete implementation of CategoryItemRenderer. When you look at the API docs for AbstractRenderer, you will find lots of methods with a signature like

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setSeriesShape(int series, java.awt.Shape shape)

.
where the series index refers to the index of the series within the dataset.
In order to change the color (or more generally the paint) for the ith-series of the jth-dataset to red, you will have to write

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plot.getRenderer(j).setSeriesPaint(i,Color.RED);