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Forum: Geometry
Re: None Size limit for geometry (Marion Bug)
Date: 27 Jun, 2010
From: Joseph Perl <Joseph Perl>

Hi Marion,

There is no specific hard-coded limit in the visualization, but I think what's happened is that you're hitting the limitations of round-off errors in the visualization code.

I have indeed reproduced your problem in all three of OpenGL, HepRepFile and RayTracerX.

I know from seeing some of your past research that you are engaged in very interesting problems at the DNA scale, so I very much would like to help find a solution. My guess is that the solution lies in changing Geant4's internal length unit from its usual mm to something more appropriate to your work. I understand that this is something that can be done, but I haven't done it myself. I'll try to get us some advice on this.

I understand that you have structures to visualize on the nm scale. What is the other end of the length scale that you need, that is, what are the largest structures that you need to visualize?

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1 None: Re: Size limit for geometry   (Marion Bug - 27 Jun, 2010)
2 None: Re: Size limit for geometry   (Sebastien INCERTI - 28 Jun, 2010)
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