I am trying to get coordinate for fulcrum selection in cryoSPARC.

I use volume tracer place a marker on the position of map density I wanted, with the maker selected, I use getcrd command report the coordinate in xyz in Angstroms, when I divide the values by the pixel size, the xyz in voxels are make no sense, as they are larger than my volume size.

Like my volume size is 1024^3, got coordinates in Angstroms 2100,2100,2000, my pixel size is 1.475. 

Could you please anyone help me out? Do I did something wrong?

Thanks and best,

Yanhe