ROOT Version: 5.34/34 Platform: Scientific Linux release 6.10 Compiler: gcc
Hi experts,
I’m currently trying to modify the text format of a TH2F TEXT label with gStyle->SetPaintTextFormat("1.1g"), this give me a correct behavior when numbers can be written in scientific notation as 1e-5 but for fewer exponents the numbers shows all the zeros, for example 3e-2=0.03 as you can see in the image. I want to have this labels written in scientific notation but keep the ones that are integers in normal notation.
# code block
void forum()
{
TH2F *h1 = new TH2F("h1","",20,-4,4,20,-20,20);
TH2F *h2 = new TH2F("h2","",20,-4,4,20,-20,20);
TH2F *hrate;
Float_t px, py;
for (Int_t i = 0; i < 25000; i++)
{
gRandom->Rannor(px,py);
h1->Fill(px,5*py);
}
for (Int_t i = 0; i < 1000; i++)
{
gRandom->Rannor(px,py);
h2->Fill(px,10*py);
}
hrate = (TH2F*)h2->Clone("rate");
hrate->Divide(h1);
TCanvas *c1 = new TCanvas("c1","c1");
gStyle->SetHistMinimumZero();
gStyle->SetPaintTextFormat("1.1g");
hrate->Draw("COLZ TEXT");
}
This will give a 2D histogram with text labels img2.pdf (17.1 KB), what I want is to keep the style of the integer ones and give scientific notation to the other ones.