regards,
Mark.
On Mon, 10 Aug 1998, Mark Boulay wrote:
> Dear root team,
> I have a couple of questions about using TTree:Draw().
> First, I am wondering if it possible to produce a TTree containing
> a TClonesArray branch, with some events having this array filled,
> and others with an empty TClonesArray, and still use the TTree::Draw()
> command for data contained in the TClonesArray. I have a tree with these
> characteristics, and can retrieve events with TTree::GetEvent(), but
> using TTree::Draw() for data in the TClonesArray causes root to hang.
> The second (unrelated) question I have is about the autoscaling
> of axies for TTree::Draw(). Is is possible to have the entire range
> of the data in the tree scanned before choosing the axis scaling? It
> now seems that a small number of events are sampled to choose the scale.
>
> Thanks in advance for your help,
> Mark.
>
>
> =================================================================
> = =
> = Mark Boulay =
> = Department of Physics phone/voice mail: (613) 545-6861 =
> = Queen's University fax: (613) 545-6813 =
> = Kingston, Ontario email: mgb@sno.phy.queensu.ca =
> = Canada, K7L 3N6 =
> = =
> =================================================================
>
>
>
>