Hi Martin, The vop threshold Chimera command can set all the map values below a specified density level to 0, and all the values above that level to 1 creating a mask. For example, vop threshold #0 min 6.5 set 0 max 6.5 setmax 1 Then you can save the new map to a file with Volume Viewer menu entry File / Save Map... or command vol #1 save ~/Desktop/mask.mrc Tom
On Oct 20, 2017, at 7:30 AM, Martin Lawrence wrote:
Hi All,
Is there a quick and easy way in Chimera to impose a density level cutoff and write out a ccp4 style mask file?
Thanks, Martin
Martin Lawrence Department of Chemistry and Biochemistry Montana State University Bozeman, MT 59717 USA
_______________________________________________ Chimera-users mailing list: Chimera-users@cgl.ucsf.edu Manage subscription: http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users