Hi Peter,
Use a pfont with precision 3 (default is precision 2).
With precision 3, the font size is expressed in pixels instead of per cent
of the pad height.
see:http://root.cern.ch/root/htmldoc/TAttText.html
and see a practical example below
Rene Brun
void fpixel() {
TCanvas *c1 = new TCanvas("c1","test fonts",800,1000);
TPad *pad1 = new TPad("pad1","top pad",0.2,0.6,0.8,0.99);
pad1->Draw();
TPad *pad2 = new TPad("pad2","bottom pad",0,0,1,0.5);
pad2->Draw();
pad1->cd();
TH1F *h1 = new TH1F("h1","test fonts",100,-3,3);
h1->GetXaxis()->SetLabelFont(63);
h1->GetXaxis()->SetLabelSize(14); // labels will be 14 pixels
h1->GetYaxis()->SetLabelFont(63);
h1->GetYaxis()->SetLabelSize(14); // labels will be 14 pixels
h1->FillRandom("gaus",5000);
h1->DrawCopy();
pad2->cd();
h1->SetMarkerStyle(21);
h1->Draw("e1p");
}
Peter Steinberg wrote:
>
> I am trying to make a canvas with multiple pads of
> different size (say a 2:3 aspect ratio canvas with a
> "square pad" on the top and a rectangle in the bottom).
> When i put my 2D histograms into these pads (in order
> to overlay various TGraphErrors), i have always had
> trouble making sure the axis labels and titles had the
> same font size. The usual values (e.g. 0.06) have
> very different results when the pad aspect ratios
> are so different.
>
> Does anyone have any advice on how to make sure i have
> the same text size everywhere on my canvas, even with
> very different size (& aspect ratio) pads?
>
> Thanks,
> Peter
>
> --
> Dr. Peter Steinberg
>
> Associate Scientist Brookhaven National Laboratory
> Office: +1 631-344-4390 t-Mobile (SMS): +1 917-443-7417
> Email: peter.steinberg@bnl.gov Web: http://www.rhic.bnl.gov/~steinber
This archive was generated by hypermail 2b29 : Sun Jan 02 2005 - 05:50:09 MET