Unable to control coloring of Line in LineAndShapeRenderer !

[kanishk]

Hello,
Given below is the code and image generated.
My problem is that I don't want the lines to be black but ONLY the data points. Any suggestions?
Also, is it possible to put the value above the plotted data points in the graph ?

Code: Select all

public class MyRenderer extends LineAndShapeRenderer {

	private Boolean[] anomaly;
	private static int count = 0;
	
	/**
	 * 
	 *
	 */
	public MyRenderer(Boolean[] anomaly) {
		
		super();
		this.anomaly = anomaly;
	}


	/**
	 * 
	 */
	public Paint getItemPaint(int series, int item) {

		
		
		if(anomaly[item].booleanValue())
			return Color.BLACK;
		
		return super.getItemPaint(series,item);
	}

}

Code: Select all

public class MyDrawingSupplier extends DefaultDrawingSupplier {

	private static Paint[] myPaints = { Color.RED, Color.BLUE, Color.GREEN,
			Color.MAGENTA };

	private int paintIndex = 0;

	public MyDrawingSupplier() {

		super();
	}

	/**
	 * Returns the next paint in the sequence.
	 * 
	 * @return The paint.
	 */
	public Paint getNextPaint() {
		Paint result = myPaints[paintIndex % myPaints.length];
		paintIndex++;
		return result;
	}

	/**
	 * Returns the next shape in the sequence.
	 * 
	 * @return The shape.
	 */
	public Shape getNextShape() {
		
		double size = 6.0;
        double delta = size / 2.0;
        
        // circle
        Shape result = new Ellipse2D.Double(-delta, -delta, size, size);
        
		return result;
	}

}

[david.gilbert]

There are a couple of methods in LineAndShapeRenderer:

setUseFillPaint(boolean);
setUseOutlinePaint(boolean);

Set these to true and the shapes will be filled with the fill paint and drawn with the outline paint. Then in your renderer, you can override the getItemFillPaint() method rather than getItemPaint() and the returned value will affect the shape only and not the lines.

[kanishk]

excellent !! that worked like a charm.
Thanks.

[MattBallard]

I am having an issue with a similar problem.

I just want my shapes to change color and my lines to be black.

Currently I have extended the LineAndShapeRenderer to this:

Code: Select all

public class LineAndColorShapeRenderer extends LineAndShapeRenderer {
    
    /** Creates a new instance of LineAndColorShapeRenderer */
    public LineAndColorShapeRenderer() {
        super();
    }
    
    public LineAndColorShapeRenderer(boolean lines, boolean shapes){
        super(lines, shapes);
    }
    
    public Paint getItemPaint(int series, int item) {
        
        if(series == 0){
            return Color.green.darker();
        }
           
      
      return super.getItemPaint(series,item);
   } 
    
}

I declare my LineAndColorShapeRenderer like this:

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LineAndShapeRenderer peRenderer = new LineAndColorShapeRenderer();
        peRenderer.setShape(hex,true);
//        peRenderer.setUseFillPaint(true);
//        peRenderer.setShapesFilled(true);
        
        if(aecvdm.isIsSummary()){
            peRenderer.setBaseLinesVisible(false);
        }else{
            peRenderer.setBaseLinesVisible(true);
        }
        
        peRenderer.setSeriesStroke(0 , new BasicStroke(.5f));
        plot.setRenderer(2,peRenderer);

What else do I need to do to keep my lines black?

[John Matthews]

Matt:

Another stumbling block: I sometimes forget that the series index in such methods is 0-based! For a LineAndShapeRenderer that's only used by one series, the index is always zero.

Code: Select all

plot.setRenderer(myDatasetIndex, myRenderer);
myRenderer.setSeriesOutlinePaint(0, Color.GREEN);

John