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Forum: Geometry
Re: Question G4SubtractionSolid from two G4Polycone's ? (Aram Teymurazyan)
Date: 21 Mar, 2009
From: John Allison <John Allison>

This is solely a (known) visualisation issue. Tracking is not affected.

To see the geometry as seen by the tracking system, use RayTracer (/vis/open RayTracer), which produces a jpeg file.

Because this is CPU intensive and blind, it is a good thing to get the view you want in OpenGL:

  /vis/open OGLSX
  /vis/drawVolume
  ...Get the view you want with /vis/viewer/set/commands - or use the mouse with OGLSXm or OGLSQt...
  /vis/open RayTracer
  /vis/viewer/set/all viewer-0  (assuming viewer-0 is the OGL viewer)
  /vis/viewer/flush  (generates an  image using Geant4's own tracking algorithms and writes a jpeg file)

If you are on a Unix platform, when you "./Configure -build", you can answer "y" to

  G4VIS_BUILD_RAYTRACERX_DRIVER
  G4VIS_USE_RAYTRACERX
  Allows for interactive ray-tracing graphics through X11.
  The X11 package is required.

Then /vis/open RayTracerX gets you a window that allows you to see the image as it is built. It produces a jpeg file too.

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