I'm not sure, but I think you'll have to do a 'run and edit command file' and add the following keyword: GRID SPACING 2.4 2.4 2.4
Give it a try. On 14 October 2014 17:31, Steven Chou <[email protected]> wrote: > Dear All, > I'm trying to generate a mask from a pdb coordinate file using the > 'Ncsmask' utility of CCP4 (Map & Mask Utilities => Create/Edit Masks). > The parameters I used are: > ========================================= > Radius for building mask from atoms 10.0 angstrom. > Space group P1 > Set map extent x 0.0 307.2, y 0.0 307.2, z 0.0 307.2 > Set map grid x=128 y=128 z=128 > > Cleanup mask to have 1 contiguous region > Trim maks to minimum box > ========================================= > I want to have a mask with pixel size of 307.2/128 =2.4, and box size of > 128. > > But the mask I got has a pixel size of 1 A/pixel, and box size of 308. > > Is there anything wrong with my parameters? > It seems that the mask generated by Ncsmask always has a pixel size of 1. > > Thanks in advance! > Steven > > > > > > -- EMAIL DISCLAIMER: http://www.york.ac.uk/docs/disclaimer/email.htm
