Setting the chart "title" to the axis title

[aram535]

Hi,

I'm trying to create a bunch of graphs dynamically from a database so I need to set the title of the graph from the dataset. The dataset contains the axis name, which I can display easily.

Code: Select all

		final CategoryAxis domainAxis = plot.getDomainAxis();
		domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);

No problem there, the label shows up. However, both of these produce a 'null'

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		System.out.println(domainAxis.getLabel());

		for(int i=0; i<=plot.getRangeAxisCount(); i++){
			System.out.println("Axis("+i+") : "+plot.getRangeAxisForDataset(i).getLabel());
		}

The dataset is very simple:

Management , G = 1.5
Management , P = 1.25
Management , R = 1.75
Management , T = 1.8

I want the Title of the chart to be "Management" in this case.

[matinh]

I'm afraid I don't really get your problem. Just do a

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chart.setTitle("Management")

to set the chart's title accordingly.

- martin

[aram535]

No problem, I must have not properly described the problem.

The class that is in question is fully dynamic. So It's 'management' this time, but it'll be something else the next time it runs. How do I extract back out the axis label dynamically?

[matinh]

Just as you wrote before:

Code: Select all

plot.getRangeAxisForDataset(i).getLabel()

- martin

[aram535]

See original post, it's returning a 'null'

[matinh]

You asked

How do I extract back out the axis label dynamically?

And that's what I answered. If the given call returns null, your axis label is not set at all.

So what do you actually want the title to be?

I assume you want it to be some key from the dataset. So ask the dataset for it. The exact code depends on the type of dataset you are using!

hth,
- martin

[aram535]

The label shows up on the graph axis, so obviously it isn't set to null. For some reason I cannot read it back.
I want the title to be label that is on the Y axis.

[matinh]

What you are talking about is not the label of the axis but the categories from the dataset, which are of course also printed on the axis. So as I suggested earlier: try to obtain the keys/categories/values from the dataset itself and not from the axis.

- martin