XYDataSet : Points rather than Lines

[Steph]

Hi,

Is it possible to plot points rather than lines in a XYDataSet ?
And can we choose the shape of the points (squares, circles, triangles...) ?

Thanx

Steph

[David Gilbert]

Hi Steph,

You can change the renderer for the XYPlot:

XYPlot plot = myChart.getXYPlot();
XYItemRenderer renderer = new StandardXYItemRenderer(StandardXYItemRenderer.SHAPES);
plot.setRenderer(renderer);

If you want to use custom shapes, you should look at the setShapeFactory method in the Plot class.

Regards,

DG.

[Steph]

Thanx a lot David,

It works properly.

But I would like to plot several curves in the same chart : one must be a line without shapes and the others must be only shapes.
Is it possible to do that with an XYDataset object ?
Your previous answer works only if I want to set every curves of my chart in the same type.

Thanks

Steph

[David Gilbert]

At the moment you need to use an OverlaidXYPlot with two (or more) subplots, because the renderer is 'per plot' rather than 'per series'. It might make sense to change that, but I'll have to wait until I've thought about it properly first...

Regards,

DG.

[Steph]

Ok Thanks a lot
Just a last question :

Is it possible to fill the shapes with a colour (cause every shapes I plot
are empty) ?

Regards

Steph