Change subplot weight?

[jiangshachina]

I made a CombinedDomainXYPlot, and used method

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combinedDomainXYPlot.add(plot1, 2)
combinedDomainXYPlot.add(plot2, 1)

to add two sub-XYPlots. The image is shown as the followings,


If I had added the two sub-XYPlots, and then changed their weight, the code like,

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List subplots = combinedDomainXYPlot.getSubplots();
XYPlot plot1 = (XYPlot) subplots.get(0);
XYPlot plot2 = (XYPlot) subplots.get(1);
plot1.setWeight(1);
plot2.setWeight(1);

But the result was...

It seems that something did't know the change.
How to cancel the trouble?

Thanks!

[paradoxoff]

That seems to be a bug.
I just checked the sources. The CombinedDomainXYPlot contains a variable totalWeight (which is the sum of the weights of the subplots). This variable is updated when subplots are added or removed, but not when the weight of a subplot is changed!
XYPlot.setWeight(int weight) simply sets the weight and calls fireChangeEvent() which should invoke CombinedDomainXYPlot .plotChanged(). The latter method simply forwards the event to PlotChangeListeners registered on the CombinedDomainXYPlot.
Not sure how this can be changed? Either we need a new method in the CombinedXXXPlot-classes for updating the total weight that can be called from its subplots or a better mechanism for distinguishing between different plot change event types.

[jiangshachina]

Something may not be notified.

[david.gilbert]

Thanks for spotting and reporting this. I think the simplest fix is to do away with the totalWeight field (in all the CombinedXXXPlot classes) and calculate the value on-the-fly when it is needed. I just committed a patch to Subversion to do just that (to be included in the 1.0.11 release).

[jiangshachina]

I have another two questions:
[1]As shown as the above pictures, all of tick label are too close to the bottom of the Volume area.
How to adjust the gap between them?
Note: All of ticks are added by manual(override method DateAxis.refreshTicks).

[2]I wish each "Price" point has the same X-axis value that the center(now it's start) of "Volume" bar has.
What I have to do?

Thanks!

[jiangshachina]

I have another two questions:
[1]As shown as the above pictures, all of tick label are too close to the bottom of the Volume area.
How to adjust the gap between them?
Note: All of ticks are added by manual(override method DateAxis.refreshTicks).

I shall know

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Axis.setTickLabelInsets(RectangleInsets insets)