[Chimera-users] vop subtract removing too much of my map

[Ahmad Khalifa]

Thanks a lot for the response, I can send data if necessary, but it likely
has to do with options / resolution

The higher resolution of map2 is, the sharper the subtraction. I tried
using a finer gridSpacing but it doesn't change much!

Does the map threshold factor into the subtraction?

On Tue, Sep 29, 2020 at 10:05 AM Elaine Meng <meng at cgl.ucsf.edu> wrote:

> Hi Ahmad,
> To my knowledge the map subtraction is precise.  But if you think there is
> a problem, you will need to give a precise and detailed description of
> exactly what you did, including the data files and all the steps needed to
> show the problem, and why you believe there is a problem (and possibly use
> menu: Help... Report a Bug, instead of sending e-mail here).  If we can't
> reproduce a problem, we can't fix it!
>
> It may be that you need to create the molmaps with smaller grid spacing to
> give a more precise result.
>
> molmap details and options:
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/molmap.html>
>
> vop subtract details and options:
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/vop.html#subtract>
>
> Elaine
> -----
> Elaine C. Meng, Ph.D.
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
>
> > On Sep 29, 2020, at 9:55 AM, Ahmad Khalifa <underoath006 at gmail.com>
> wrote:
> >
> >  I'm trying to subtract two overlapping molmaps: map1-map2, but the
> subtraction ends up removing too much of map1 where map2 doesn't overlap
> with map1!
> >
> > how can I get precise subtraction?
>
>
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