Multiple Axis Problem

[Birgi]

David,

I also tried to call the method setLinesVisible(true), but I still cannot see the lines. I still have the above chart and above code. Am I missing some point?

Thanks a lot

Birgi

[Guest]

David,

Sorry for bothering you this much, but I still have a problem. My code for creating the chart is as follows;

Code: Select all

		chart = ChartFactory.createBarChart(
											 criteria + " Grafiği",		// chart title
											 "Ürünler", 				// domain axis label
											 criteria, 					// range axis label
											 dataset, 					// data
								ass			 PlotOrientation.VERTICAL, 
											 false, 					// include legend
											 true,						// tooltips?
											 false						// URLS?
											);
		chart.setBackgroundPaint(Color.lightGray);
		// creating the secondary chart & secondary axis
		CategoryPlot plot = chart.getCategoryPlot();
		NumberAxis axis2 = new NumberAxis("Satış Yüzdesi");
		plot.setRangeAxis(1, axis2);
		plot.setDataset(1, secondaryDataset);
		plot.setRenderer(1, new LineAndShapeRenderer()); 
		plot.mapDatasetToRangeAxis(1, 1);

Now the problem is, shapes for representing data points appear on the chart, but they are all on the same y-axis ( I mean on the same vertical line). I also cannot see any lines ( probably that's because of the data points).

Thanks a lot for your help.

Birgi

[david.gilbert]

I also tried to call the method setLinesVisible(true), but I still cannot see the lines. I still have the above chart and above code. Am I missing some point?

In your dataset, I think you have many series each with just one item. But what you want is one series with many items.

[Guest]

i want to set the min value to start graph on y-axis.
here the

Code: Select all

public class ViewChartAction extends Action {

	public ActionForward execute(
			ActionMapping mapping, ActionForm form, HttpServletRequest req,
			HttpServletResponse res)
		throws Exception {

		try {
String period = req.getParameter("period");
			int id=0;
			id = Integer.parseInt(req.getParameter("id"));
CategoryDataset dataset = _getDataset(period,id);
	chart = ChartFactory.createLineChart(
									chartName, xName, yName, dataset,
									PlotOrientation.VERTICAL, true, false, false);
res.setContentType("image/jpeg");

			OutputStream out = res.getOutputStream();
        	ChartUtilities.writeChartAsJPEG(out, chart, 300, 250);
return mapping.findForward("/common/null.jsp");
		}
		catch (Exception e) {
			req.setAttribute(PageContext.EXCEPTION, e);

			return mapping.findForward("/common/error.jsp");
		}
	}

private CategoryDataset _getDataset(String period,int id) throws Exception {
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();

		String seriesName = "";
String yn= "name";

// getting values from database.
dataset.addValue(new Double(rs4.getString("Value")), seriesName, yn);


				}


		return dataset;


	}

}

-------------------
the graph comming as given the url above.

i want to start the graph from min value not from zero how to set the min value

[david.gilbert]

You need something like:

Code: Select all

CategoryPlot plot = (CategoryPlot) chart.getPlot();
NumberAxis axis = (NumberAxis) plot.getRangeAxis();
axis.setAutoRangeIncludesZero(false);

[sureshn]

thats worked thanx

[sureshn]

thanx david for your reply i have a small doubt
in my graph x axis have the values 1 to 52 , as per req i am doing graph small width and height so those no's are overlapping. can i hide that values.
cheers
nzsoori

[Guest]

any suggestions for above question plz

[sureshn]

hi david plz give a hand
in my graph x axis have the values 1 to 52 , as per req i am doing graph small width and height so those numbers are overlapping. can we hide that values.
when i tried like this yn=""
graph itself is not comming


DefaultCategoryDataset dataset = new DefaultCategoryDataset();

String seriesName = "";
String yn= "name";

// getting values from database.
dataset.addValue(new Double(rs4.getString("Value")), seriesName, yn);

so i figured same name,seriesname thays why
if i dont want to show x axis values how to hide

cheers
suresh