[Chimera-users] volume viewer ranges

[Tom Goddard]

Hi Tamas,

  Chimera Volume Viewer is reporting the range of data values.  Probably it is showing you a subsampled version of the data (e.g. “step 2”) and then it only shows the min and max of the subsampled values.  Change step (above the histogram) to 1 to load the full resolution data.  Chimera automatically chooses the step to open the data fast.  This is a setting in Volume Viewer menu Features / Data Display Options called “Adjust step to show at most N voxels”.

	Tom


> On May 22, 2018, at 2:23 PM, Tamas Hegedus <tamas at hegelab.org> wrote:
> 
> Hi,
> 
> I have a .map file.
> 
> If I open it in chimera, volume viewer indicates a range (-0.133 - 0.235  Level: 0.018 (in a textbox)), which range is different from the min and max values of data in the map file (read by python mrcfile).
> 
> The chimera's range is narrower.
> 
> - why is that?
> 
> - I can imagine that chimera apply some cutoff; if this is the case, how can I display the full range of the .map file?
> 
> Thanks,
> Tamas
> 
> -- 
> Tamas Hegedus, PhD
> Senior Research Fellow
> MTA-SE Molecular Biophysics Research Group
> Hungarian Academy of Sciences  | phone: (36) 1-459 1500/60233
> Semmelweis University          | fax:   (36) 1-266 6656
> Tuzolto utca 37-47             | mailto:tamas at hegelab.org
> Budapest, 1094, Hungary        | http://www.hegelab.org
> 
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