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Mike Buess
USA
3037 Posts |
 Posted - 04/02/2007 : 1:41:33 PM
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I can't find default settings for this but the following Origin C function will help format all slice labels in a pie graph at once. Add the function to Codebuilder's workspace as described here and run it by attaching the command format_pie_labels to the Custom Routine Button.
void format_pie_labels()
{
GraphLayer gl = Project.ActiveLayer();
if( !gl ) return;
DataPlot dp = gl.DataPlots(0);
if( !dp ) return;
TreeNode tn1,tn2;
tn1 = dp.Curve;
tn2 = tn1.GetNode("Labels");
if( !tn2 ) return;
tn2.Auto.nVal = 1;
tn2.Values.nVal = 0; // format labels manually
tn2.Percentages.nVal = 1;
tn2.Categories.nVal = 0;
dp.Curve = tn1;
gl.GetPage().Refresh();
gl.LT_execute("sec -p 0.01");
tn2.Auto.nVal = 0;
dp.Curve = tn1;
gl.GetPage().Refresh();
gl.LT_execute("sec -p 0.01");
Dataset ds(dp.GetDatasetName());
BasicStats bs;
Data_sum(&ds, &bs);
double dVal,dTotal = bs.total;
int nSlices = bs.N;
string str;
for(int i=1;i<=nSlices;i++)
{
GraphObject go = gl.GraphObjects("PIE." + i);
if( go )
{
dVal = 100.0 * ds[i-1] / dTotal;
str.Format("%.1f%%",dVal);
go.Text = str;
}
}
}
Mike Buess
Origin WebRing Member |
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Pie Charts: Customizing Labels, decimal places
