Re: Markers in the viewers

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri May 21 1999 - 11:46:06 MEST


Hi Valeri,
TMarker3DBox::ExecuteEvent was not implemented in version 2.21.
It is now implemented in the development version 2.22.
This explains why you could not rotate in the pad a TMarker3DBox object.
There was also a protection missing in TMarker3DBox::Paint.
OpenGL was systematically called (even when GL was not initialized).
This is now fixed in 2.22.

Rene Brun

Tioukov Valeri wrote:
> 
> Dear Rene,
> 
> On Thu, 20 May 1999, Rene Brun wrote:
> > TMarker3DBox is "rotatable". You can try with the macro below.
> 
> I just tried the macro.
> When I point the mouse on the boxes it remains the "+" sign so I can not
> rotate it in the usual canvas.
> It perfectly rotating in X3D and in OpenGL. But what really surprised me
> that if I start in the same session OpenGL after finishing X3D or vise
> versa - the segmentation violation is happend:
> 
> [tyukov@chorusdq]~/R/root/test> root
>   *******************************************
>   *                                         *
>   *        W E L C O M E  to  R O O T       *
>   *                                         *
>   *   Version   2.21/08     29 March 1999   *
>   *                                         *
>   *  You are welcome to visit our Web site  *
>   *          http://root.cern.ch            *
>   *                                         *
>   *******************************************
> 
> FreeType Engine v1.1 used to render TrueType fonts.
> 
> CINT/ROOT C/C++ Interpreter version 5.13.92, Mar 13 1999
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] .x fitz.C
> root [1] Total size of x3d primitives:
>      gSize3D.numPoints=1600
>      gSize3D.numSegs  =2400
>      gSize3D.numPolys =1200
> 
>  *** Break *** segmentation violation
> 
> X3D and OpenGL were started from "View" menu.
> 
> My system parameters:
> RH5.2  gcc version egcs-2.90.29 980515 (egcs-1.0.3 release)
> 
> Root was compiled from src, but I didn't observe any singularities in
> the tests and tutorials so far.
> 
> What could be the reason of the problem?
> 
> Best regards
> Valeri



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