How to get a point from chart

[LucaSirri]

I have a little problem ...

I have a point in screen coordinates

Code: Select all

Point p = getMousePosition();

There is a way to know if this point is in a dataset chart ?

[LucaSirri]

Ok I find a way :

Code: Select all

    	Point p = getMousePosition();    	
    	XYItemEntity entity = null;
    	entity = (XYItemEntity) chartPanel.getEntityForPoint(p.x,p.y);    	    
    	System.out.println("p :" + p);
    	System.out.println("x :" + chartPanel.getChart().getXYPlot().getDataset(entity.getSeriesIndex()).getXValue(entity.getSeriesIndex(), entity.getItem()));
    	System.out.println("y :" + chartPanel.getChart().getXYPlot().getDataset(entity.getSeriesIndex()).getYValue(entity.getSeriesIndex(), entity.getItem()));