RE: OpenGL and TPolyline3D

From: Fine, Valeri <>
Date: Wed, 20 Sep 2006 09:58:48 -0400

Hello Diego.
Do you want something like this: ? The picture above is a screenshot of the STAR online event display. It have been used for several years and it is based on the ROOT 3D classes rendered with the Qt-based OpenGL Viewer (see:  

My best regards, Valeri

From: on behalf of Diego Faso Sent: Wed 9/20/2006 8:18 AM
Subject: [ROOT] OpenGL and TPolyline3D

Hello, I'm using the root-GL-viewer and I have some questions related to the use of TPolyLine3D.
I can draw a TPolyLine3D, but the following methods seem to have no effect on in the GL-representation:


Is it possible to set these attributes?

The second problem is the following:
I need to draw a TPolyLine3D inside a volume, and I need the line to be visible from outside of the container volume. I attach the "geom_example_lines.C" as example: I'm drawing several lines, and I need to display all of them, while in my example all lines inside the "tube" volume are hidden.

I thank you in advance for your help.

My machine setup:
 Gentoo Base System version 1.12.5
 kernel: 2.6.17-gentoo-r8
 root version: 5.13/02
 gcc version: 3.4.6
Received on Wed Sep 20 2006 - 16:03:53 MEST

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