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 Text label boxes shift |
| Posted by Dmitriy on Jan-23-2012 20:01 |
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Hi.
I'm trying to set custom size for pie chart labels to make them a little bigger than automatic sizes. But the label boxes shift from the center of the sector if I set these custom values.
Here is example code. It's the code snippet from ChartDirector documentation with details elided.
int main(int argc, char *argv[])
{
double data[] = {21, 18, 15, 12, 8, 24};
const char *labels[] = {"LABEL1", "LABEL2", "LABEL3", "LABEL4", "LABEL5",
"LABEL6"};
int colors[] = {0x66aaee, 0xeebb22, 0xbbbbbb, 0x8844ff, 0xdd2222, 0x009900};
PieChart *c = new PieChart(600, 360);
c->setPieSize(300, 195, 110);
c->setData(DoubleArray(data, sizeof(data)/sizeof(data[0])), StringArray(labels,
sizeof(labels)/sizeof(labels[0])));
c->setColors(Chart::DataColor, IntArray(colors, sizeof(colors)/sizeof(colors[0])));
c->setLabelLayout(Chart::SideLayout);
TextBox *t = c->setLabelStyle("arialbd.ttf", 10, 0x000000);
t->setBackground(0x348765, Chart::Transparent, Chart::softLighting(
Chart::Right, 0));
// this line causes labels shift (pic2)
t->setSize( 75, 40 );
c->setLabelPos(-10);
c->makeChart("pie.png");
delete c;
return 0;
}
How can I change the label box sizes and keep the original positions?
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| Re: Text label boxes shift |
| Posted by Peter Kwan on Jan-24-2012 02:09 |
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Hi Dmitriy,
We are aware that the Box.setSize cannot be used in the pie chart labels. Instead, please use CDML to control the size (see the "Exploded Pie Chart" sample code).
For example:
c.setLabelFormat("<*block,halign=center,valign=center,width=75,height=30*>{label}\\n{percent}%");
Hope this can help.
Regards
Peter Kwan |
| Re: Text label boxes shift |
| Posted by Dmitriy on Jan-25-2012 16:57 |
|
Hi Peter,
It works. Thank you. |
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