Re: [jCharts-users] gnubie question

[Nathaniel G. A. <nat...@ya...>]

That demo was a quick hack.  Move the rendering of the chart into the paint() method to get it to
redraw as in:

	/*********************************************************************************
	 *
	 * @param graphics
	 ********************************************************************************/
	public void paint( Graphics graphics )
	{
		try {
			String[] labels = {"BMW", "Audi", "Lexus"};
			String title = "Cars that Own";
			Paint[] paints = {Color.blue, Color.gray, Color.red};
			double[] data = {50d, 30d, 20d};
      	PieChartDataSet pieChartDataSet = new PieChartDataSet( title,
																					 data,
																					 labels,
																					 paints,
																					 this.pieChart2DProperties );

			Dimension dimension= this.panel.getSize();
			PieChart2D pieChart2D = new PieChart2D( pieChartDataSet,
																 this.legendProperties,
																 this.chartProperties,
																 (int) dimension.getWidth(),
																 (int) dimension.getHeight() );
			pieChart2D.setGraphics2D( (Graphics2D) this.panel.getGraphics() );
			pieChart2D.render();
		}
		catch( ChartDataException chartDataException ) {
			chartDataException.printStackTrace();
		}
		catch( PropertyException propertyException ) {
			propertyException.printStackTrace();
		}
	}



--- "J. David Boyd" <da...@ts...> wrote:
> I'm running the demo java code from jChart-0.7.5, and it shows the pie 
> chart fine. (Windows XP, jdk 1.4.2_0 )
> 
> However, if I minimize the window, then bring it back, the view is empty.
> 
> Am I missing something obvious?  Why doesn't the window redraw with the 
> pie chart still in it?
> 
> Dave
> 
> 
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