need help with XYZDataSet

[miladirooni]

Hi everyone,

I am trying to do some plot using XYZ Dataset but Im stuck. i am reading data from a file here is my code:

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public static XYZDataset createDataset() {

        JpowderInternalframe inFocus = Jpowder.internalFrameInFocus;

        DefaultXYZDataset dataset = new DefaultXYZDataset();


        for (int i = 0; i < inFocus.getXYPlot().getDatasetCount(); i++) {

            XYDataset ds = inFocus.getXYPlot().getDataset(i);
            double[][] data = new double[3][ds.getItemCount(i)];
            for (int j = 0; j < ds.getItemCount(i); j++) {

                data[0][j] = (Double) inFocus.getPowderDataSet().elementAt(i).getX().get(j);//x
                data[1][j] = Jpowder_Reader.getLocalData().get(i).get(1);//x reading from Jpowder File
                data[2][j] = (Double) inFocus.getPowderDataSet().elementAt(i).getY().get(j);//Colour

            }
            dataset.addSeries("Serie " + i, data);

        }

        return dataset;
    }

However I am getting gap between each series. what I am trying to do is to get first series extend from 0 to 10 and the
second series to be extended from 10 to 20.



Anyone has any Idea to over come this problem.

Cheers

[miladirooni]

any idea is welcome.

[paradoxoff]

You haven´t specified the renderer you are using but I guess it is an XYBlockRenderer.
Call

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renderer.setBlockHeight(10);

Then, in order to cover the space between 0 and 10, you need to make sure that the block is not centered at an y value of 0 but starts at a y valkue of 0.
To achieve that, call

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renderer.setBlockAnchor(RectangleAnchor.BOTTOM);

[miladirooni]

Sweet Tanx