Hi,
In the CVS version, the axis range(s) is(are) taken into account when
making a 1-d or 2-d projection
Rene Brun
Abelardo Moralejo wrote:
>
> Hi,
>
> I have just started using root 3.05.07 on Linux RH 7.2. I have a TH3F
> object which I fill from a tree, and then want to make xy slices for
> different z values. With root 3.02.07 I did:
>
> (where mov is the pointer to the TH3F object and i the slice I want to
> extract)
>
> mov->GetZaxis()->SetRange(i,i);
> TH2D* ground = (TH2D*) mov->Project3D("yx");
>
> With version 3.05.07 this does not seem to work, since the second
> instruction results in a projection of all the zbins of the TH3F
> histogram (not just bin i). But if I simply do mov->Draw(), only the "i"
> slice is drawn, as it should be.
>
> Anyone has had any problem and know how to solve it?
>
> Thanks in advance, and best regards,
>
> A. Moralejo.
>
> ---
> **********************************************
> * Abelardo Moralejo Olaizola *
> * Dipartimento di Fisica Galileo Galilei *
> * e INFN, sezione di Padova. *
> * Via Marzolo, 8. PADOVA 35131 *
> **********************************************
This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:15 MET