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 = = = =================================================================
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:34:36 MET