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I use for the same purpose a XYPointerAnnotation. It works fine.
An improvement would be to be able to select a background color for the text, and to be able to set a transparency coefficient on this background.
Regards.

I would have been hapy the be able to modify x, y of a XYDrawableAnnotation (and whyn not height and Width). But it is not possible. In my application I can make 3D animation of a mecanical model (function of time). I also have functions depending on the time. The goal is to have a annotation moving...

Hello again, the method "setFixedDimension" did not suit my request so I found a solution which was to create a new class over "NumberAxis" to redefine the method "findMaximumTickLabelWidth" (from ValueAxis). This method retruns now a constant value. public class FunctionJFreeNumberAxis extends Numb...

Try org.jfree.chart.plot.CombinedDomainXYPlot. It combines you two plots. You can find some examples for combined plots in the JFreeChart examples. Chris This will probably be the solution for a future version. But no time to do that at the moment. I tried : myXYPlot.getRangeAxis().setFixedDimensio...

I had to redefine the height of my chart (that I use in a scrollpanel as well), so I use the following command : protected final static int myHeight2G = 325; myChartPanel.setPreferredSize(new Dimension(ChartPanel.DEFAULT_WIDTH, myHeight2G)); I also modify default min max size to allow bigger chart (...

My other problem is to control the vertical tick width in order to align 2 graphics. See picture : http://img206.imageshack.us/my.php?image=gr11jk7.jpg I tried : myXYPlot.getRangeAxis().setFixedDimension(30.); But it doens't give the expected result. What else could I try ? Thanks a lot. Hugues.

For the next version of my software, I will try this solution : 1. I use an Homemade TickUnits : FunctionJFreeTickUnits DecimalFormat aDf11 = new DecimalFormat("##0.#####E0"); // we can add the units in any order, the TickUnits collection will // sort them... add(new NumberTickUnit(1.e-20, aDf11)); ...

A solution seems to be in the pipe (I hope so) with those few lines : NumberFormat aDF = new DecimalFormat("##0.#####E0"); NumberTickUnit aNTU = new NumberTickUnit(10.e-10); NumberAxis aAxis = (NumberAxis) myXYPlot.getRangeAxis(); aAxis.setNumberFormatOverride(aDF); aAxis.setTickUnit(aNTU); I ll hav...

up

may be just an other renderer could do the job ?

any idea ?

Hugues

this is our java class to store the values. public class FunctionViewerData extends AbstractXYDataset{ private Vector<double[]> myXDataVector; private Vector<double[]> myYDataVector; with methods like : /* * get the number of point in a function */ public int getItemCount(int n){ ... /** * get the i...

Hi,

We are using a a class that extends "AbstractXYDataset" combined with a XYPlot to draw our curves (like sin or cos). see post "low values in a XYPlot, axis range limitation" to see the results.

does it help ?
Hugues.

Hi, when I want to display small values, I have no information on my curve's range on the Y axis. See images : this one is still OK : 1e-7 * sin(x) http://img470.imageshack.us/my.php?image=jfreelowvalues2gu9.jpg this one is not OK : 1e-8 * sin(x) http://img217.imageshack.us/my.php?image=jfreelowvalu...

Alfi@leman wrote:Example: 0.00000001 doesn't look good. I would like to see 1.0e-9 or 10-9 or something like that.
Alfi

I also have plots will low values, and with logarithmic axis or not, under 1e-7 I only have ONE value in the axis scale which is a problem.

The problem seems to be on my side