[Chimera-users] How to set volume view step size in "vop morph" command

Elaine Meng meng at cgl.ucsf.edu
Thu Jan 4 11:30:23 PST 2018

Hi Zheng Liu,
Your command has “step 1” twice, but that should be OK… I believe it indicates using the full data in the calculation of the morph map.  

I'm not sure why the display uses step 8 of that map, or if it’s a bug, but here is one idea:
There is a volume option that by default, if a map is larger than a certain size, the display step size is automatically increased.  You could try turning off that behavior, for example with command:

volume #4 limitVoxelCount false

Details on that option

I hope this helps,
Elaine C. Meng, Ph.D.                       
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Jan 4, 2018, at 7:09 AM, Zheng Liu <liuz1970 at yahoo.com> wrote:
> I want create a morph volume between 2 maps (#0, and #1), as a command I wrote:
> vop morph #0,1 step 1 playStep 0.04 frames 200 step 1
> However, the new model #4 morph was display in step "8", not step "1" in the volume view window. How to set the step size in the vop morph command? Thanks!

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