Who eats my linebreaks for axis labels?

matinh · Post by **matinh** » Fri Aug 11, 2006 10:23 am

Hi!

I've got a problem with axis labels if they contain newline characters ('\n'). What I want to do is create a TimeSeriesChart and set the DateFormat (using the method setDateFormatOverride()) to something like "dd.MM.yyyy\nhh:mm".

The problem is that someone eats my linebreaks

They simply disappear.

I traced it down to org.jfree.text.TextUtilities.drawRotatedString(). This method still has the linebreak and passes the correct string on to Graphics2D.drawString(). This is where my trace ends as I've got no source code for this.

My question: is it possible to use linebreaks in axis labels at all? If yes, how?

many thanks in advance,
- martin

matinh · Post by **matinh** » Wed Aug 16, 2006 2:16 pm

Am I the only one having this problem? Please let me know if you know how to solve this issue!

tia,
- martin

jwenting · Post by **jwenting** » Wed Aug 16, 2006 2:20 pm

I've seen it as well during some experimenting. Doesn't bother me that much at the moment, though it would be nice to be able to define multiline labels (especially for long labels on the domain axis).

matinh · Post by **matinh** » Wed Aug 16, 2006 2:41 pm

Thanks for your reply jwenting. At least I know now that I'm not alone with this problem

.

I'm afraid to fix this problem one has either to fix that bug/feature in Graphics2D.drawString() or investigate some work to do a split of the label and draw multiple text-boxes, one for each single line.

However, if someone could provide a workaround this would be really great so far.

Any comments?

- martin

oacis · Post by **oacis** » Thu Aug 17, 2006 12:14 am

There are a few feature requests for line breaks on the sourceforge tracker. I have supplied a patch for multi-line Axis titles and will hopefully have a patch for the tick labels soon.

In the Axis class, the new line characters are not taken into account in the FontMetrics class which means that the space is not reserved for drawing of the labels. And as you pointed out the Graphics2D doesn't draw new line characters at all.

matinh · Post by **matinh** » Thu Aug 17, 2006 8:38 am

oacis wrote:There are a few feature requests for line breaks on the sourceforge tracker. I have supplied a patch for multi-line Axis titles and will hopefully have a patch for the tick labels soon.

Could you please point me to the patch. I found a few posts regarding multiline axis labels but none had a patch attached.

And where will you publish your patch for the tick labels once you got it? On the sourceforge page as well?

many thanks,
- martin

oacis · Post by **oacis** » Sat Aug 19, 2006 1:21 am

THere is a minor problem with rotated text which I will look into today and do some more testing. It depends on me getting the problems fixed and the release schedule of JFreeChart.

gregpass · Post by **gregpass** » Tue Oct 31, 2006 4:53 pm

matinh wrote:
oacis wrote:There are a few feature requests for line breaks on the sourceforge tracker. I have supplied a patch for multi-line Axis titles and will hopefully have a patch for the tick labels soon.
Could you please point me to the patch. I found a few posts regarding multiline axis labels but none had a patch attached.

I've looked on sourceforge but cannot find this patch in the "patches" area? The only patch by "oacis" is unrelated.

Thanks.

matinh · Post by **matinh** » Wed Nov 01, 2006 12:02 pm

oacis sent me a private message a week ago or so, that he was on vacation and will finish the work when he is back.

- martin

LukasW · Post by **LukasW** » Wed Nov 29, 2006 1:33 pm

I also really need to have multline axis label, has anyone figured out a solution to this/found the patch?

thanx
//Lukas

www.jfree.org

Who eats my linebreaks for axis labels?

Who eats my linebreaks for axis labels?

Noone else has this problem?

where is the patch?

Any progress?