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  X Axis labels not showing the -ve sign
Posted by Anthony Edwards on Mar-30-2010 23:12
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Hi

For some strange reason my X axis isnt showing the -ve sign for the labels.  ie rather than -5, 0, 5 its showing 5, 0, 5.  Any ideas?  Is there a global setting in java to display the -ve sign?

I'm doing c.xAxis().setLabels(labels);  // labels is a String [] and correct
c.xAxis().setLabelStep(3,1);    // to show every 3rd label ...

Thanks!

  Re: X Axis labels not showing the -ve sign
Posted by Anthony Edwards on Mar-30-2010 23:33
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Ive tried adding c.xAxis().setLabelFormat("{label}"); but that doesnt seem to make any difference.  Have I missed anything?

  Re: X Axis labels not showing the -ve sign
Posted by Peter Kwan on Mar-31-2010 03:10
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Hi Anthony,

In setLabels, the leading "-" character is used to mean that the label will be associated with a minor tick. If you look at the ticks carefully, you can see some ticks are shorter than the other.

To display the leading "-", there are two methods:

(a) Use "\\-" as the first two characters. Note that in Java syntax, the "\\" would need to be represented as "\\\\" if it is hard coded in source code. For example:

for (int i = 0; i < myLabels.length; ++i)
    if (myLabels[i].startsWith("-")) myLabels[i] = "\\\\" + myLabels[i];

(b) Use numbers instead of text strings.

double[] myLabels; //declare as array of numbers
c.xAxis().setLabels2(myLabels);

Hope this can help.

Regards
Peter Kwan

  Re: X Axis labels not showing the -ve sign
Posted by Anthony Edwards on Mar-31-2010 15:33
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Perfect - thanks for your help.  That works a treat.