Re: How to Define a new Color Palette?

From: Frederic FAURE (faure@labs.polycnrs-gre.fr)
Date: Thu May 20 1999 - 10:06:35 MEST 

ref: Pine.LNX.4.10.9905190723350.23938-100000@int_i.ri.dasa.de

Hi Rene,
thank you very much for your response this problem.

But this does not work on my computer (IBM AIX):
the top of the gaussian is not dark, but white.

I join the obtained picture.
Perhaps is it due to my computer?



You gave me the following code:
//-----------------------------------------


void palette()
{
//example of new colors (greys) and definition of a new palette

const Int_t colNum = 10;
Int_t palette[colNum];
for (Int_t i=0;i<colNum;i++) {
TColor *color = new TColor(51+i
,1-(i/((colNum)*1.0))
,1-(i/((colNum)*1.0))
,1-(i/((colNum)*1.0)),"");
palette[i] = 51+i;
}
gStyle->SetPalette(colNum,palette);

TF2 *f2 = new TF2("f2","exp(-(x^2) - (y^2))",-3,3,-3,3);
f2->SetContour(colNum);
f2->SetFillColor(0);
f2->Draw("cont");
}
//------------------------------------------

-- 
Frederic Faure
LPMMC (Maison des Magisteres Jean Perrin, CNRS)
BP 166 38042 Grenoble Cedex 9 France
email: faure@labs.polycnrs-gre.fr
tel: 04 76 88 74 98
fax: 04 76 88 79 81
c2.gif

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