The macro attached produces some naive API to manage 3D view scales.
It does show how one can play with 3D scale.
Hope this helps
Valeri
----- Original Message -----
From: "Kai Yi" <yik@fnal.gov>
To: <roottalk@pcroot.cern.ch>
Sent: Friday, June 29, 2001 2:06 PM
Subject: [ROOT] help needed for a complicate question!
> Hi, All Experts,
> Suppose I want to draw a cloud,or a density picture According to some
> probability, I generated a lot of coordinates (x,y,z) which reflect the
> density in 3D space. I then put x,y,z into a ntuple (tree). So my ntuple
> is like:
>
> myTree
> | | |
> x y z
>
> Then I have the following operation:
> new TBrowser();
> From the browser, find the tree, clich right button on my mouse
> and choose StartViewer, on this TreeViewer, I put _1.x into red X, _1.y
> into red Y, _1.z into red Z. Then I press blue Draw, I get the cloud or
> density 3D picture. I noticed that root automatically generate a command:
> ntupleVertexRaw->Draw("_1.z:_1.y:_1.x", "", "", 3292, 0);
>
> My question is:
> How to set the range of x,y,z? right now I do not have control over
> the range of x,y,z. Is it possible to set range somewhere, or there are
> some other ways to do the same thing?
>
> Thanks a lot!
>
> Kai Yi
>
>
This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:50 MET