Retrieving 3D Tree::Draw("a:b:c") result -- ADDENDUM

I apparently solved my task, by inserting between the TTree::Draw() lines the TTree::SetMarkerXXXX() call.... I.E.

   ntuple->Draw("z:y:x","","", 3401, 0);
   ntuple->SetMarkerStyle(30);
   ntuple->SetMarkerColor(2);
   ntuple->Draw("cz:cy:cx","","same", 3401, 0);

getting this result...

anyway it would be good I managed to get the TGraph object pointer...... Cheers, Tommaso
>
>
>
> On May 20, 2005, at 11:38 AM, Tommaso Chiarusi wrote:
>
>> Dear Rooters,
>> I quote from the On-line "Reference Guide" TTree::Draw() method
>> description:
>>
>> <<For a three and four dimensional Draw the TPloyMarker3D is unnamed,
>> and
>> cannot be retrieved.>>
>>
>> is it always true, even in the newest ROOT version?
>>
>> any plan to change?
>>
>> Acutally, I practically can affect the characteristics of a family of
>> TPloyMarker3D via the TCanvas Editor.
>> Infact: let's superimpone various 3D-TTree::Draw() result onto the
>> same TCanvas.
>> How?
>> by simply clicking with the mouse onto a marker belogning to one
>> family of the drawn TPolyMarker3D markers
>>
>> Unfortunately I should do it automatically in a programmmm
>>
>> Finally, any suggestion how to get acces to the desired
>> TPolyMarker3D ( in order to change their colour, size, style)?
>>
>>
>>
>>
>> //----
>> System used : Mac OS X
>> ROOT version: 4.02/00
>> gcc version : 3.3 20030304 (Apple Computer, Inc. build 1640)
>> //---
>>
>> Thanks a lot!!
>> Tommaso
>>
>>
>>
>> --
>> Dr. Tommaso Chiarusi
>>
>> Sett. Astroparticle Physics, Gruppo NEMO
>> Dipartimento di Fisica Universita' di Roma "La Sapienza"
>> INFN - Sezione di Roma 1
>> P.zle Aldo Moro n.2 00185 Roma, Italia
>>
>> Tel. Uff. +39.06.4991.4408
>>
>>
> --
> Dr. Tommaso Chiarusi
>
> Sett. Astroparticle Physics, Gruppo NEMO
> Dipartimento di Fisica Universita' di Roma "La Sapienza"
> INFN - Sezione di Roma 1
> P.zle Aldo Moro n.2 00185 Roma, Italia
>
> Tel. Uff. +39.06.4991.4408
>

--
Dr. Tommaso Chiarusi

Sett. Astroparticle Physics, Gruppo NEMO
Dipartimento di Fisica  Universita' di Roma "La Sapienza"
INFN - Sezione di Roma 1
P.zle Aldo Moro n.2 00185 Roma, Italia

Tel. Uff.  +39.06.4991.4408





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