How to set the colormap used by the Draw() using "colz" option ?

Patois Yannick (patois@ganil.fr)
Thu, 17 Jun 1999 17:12:22 +0200 (MET DST)


Hello,

The default colormap used by root when drawing something like
"ntuple->Draw("x:y","x>0","colz");" doesnt fit me. How can I change it ?

Also how can I set the x and y grid size and work on the created
histogram ?

Mor generaly, where can an average PAW user found information to create
small macro to represent data ? Something like the PAW reference manual
web page (http://wwwinfo.cern.ch/asd/paw/reference_manual/index.html) ?
I found a useful small page called "The PAW to ROOT conversion table"
(http://www.nikhef.nl/user/a03/root/primer/paw2root.html) but many many
useful things are not mentioned in it.

The "Classes and Members Reference Guide" gives somes info, but when you
get :
virtual void Draw(Text_t* varexp, Text_t* selection, Option_t* option,
Int_t nentries = 1000000000, Int_t firstentry = 0)
And a click on 'Option_t' gives : "Option_t ........... Option string" I
do not feel very helped.

Thanx for any help

Yannick

PS : ... and my linux version of root is still not able to execute the
ntuple1.C exemple...