[Chimera-users] Combine maps

Tom Goddard goddard at sonic.net
Fri Oct 24 10:14:04 PDT 2014


Hi Jian,

  You can add your two maps with the volume operation command

	vop add #1,2

This will create a new map with grid points that align with map #1, with map #2 interpolated (trilinear interpolation) at those grid points.  The bounds of the new map will extend beyond the bounds of #1 if that is needed to cover map #2.  Here is documentation

	http://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/vop.html#add

If density in your two maps partially overlap each other then adding them together will create extra high density in the overlap region which is probably not what you want.  How to blend them together in the overlap region is a difficult problem that Chimera does not have any capability to handle.

	Tom


On Oct 24, 2014, at 7:31 AM, Jian Guan  wrote:

> Hi all,
> Can I combine two mrc maps into one? And the two maps are with different
> pixel size. One is 1.48 A, the other is 2.33 A. I want to combine the two
> into one with pixel size of 2.33 A.
> I tried segmentation, and made two maps. But I failed to combine them. Can
> anybody help me for that? Thanks.
> Sincerely yours,
> Jian
> 
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