Hi Adam,

As I understand, you want to do some low-pass smoothing on the map, correct? 
I'm not aware that this functionality would be available in PyMOL. However, 
PyMOL can downsample the map, which averages 8 voxels into 1 and thus also 
provides some level of smoothing. Try this:

fetch emd_6413, map, async=0
map_halve map
map_halve map
isomesh mesh, map

Hope that helps.

Cheers,
  Thomas

On 05 Apr 2016, at 15:24, harold steinberg <h.adam.steinb...@gmail.com> wrote:

> Hi All,
> 
> I’m trying to make an isomesh of EMD-6413 (a cryo map) in Pymol. It’s a large 
> map with a lot of extra, not very clean. In Chimera I can just gaussian the 
> map with a new map to the level I want with a slider and it looks good, but 
> I’d much rather work in PyMOL!
> 
> PyMOL can gaussian maps, I do it all the time, but on maps that I create in 
> PyMOL. How do I get an isomesh on EMD-6413 that I can gaussian?
> 
> Normally I would use:
> alter all, q=1
> set gaussian_resolution, 5
> map_new mapA, gaussian, 1, pdb code, 6
> isosurface surfA, mapA
> 
> But in in this case I don’t want to use a pdb, just the cryo map.
> 
> I can isosurface the cryo map with the following:
> isosurface mapname, EMD-6413, 4 (any number between 1-6)
> 
> but that doesn’t allow me to apply the gaussian to the map…
> 
> How do I create an isosurface with a gaussian?
> 
> Thanks for any help,
> 
> H. Adam Steinberg
> 7904 Bowman Rd
> Lodi, WI 53555
> 608/592-2366

-- 
Thomas Holder
PyMOL Principal Developer
Schrödinger, Inc.


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