usage: prog [options] <volume file> <Angstroms per pixel> <resolution> <threshold>
	WARNING: This program is still under development

	Identifies alpha helices and beta sheets in maps at subnanometer resolutions

Option Type Description
--version None show program's version number and exit
--atoms, -A str pseudoatoms file
--atomswt, -P float pseudoatom weight
--coeff, -C str helix correlation file
--coeffwt, -H float helix correlation weight
--skeleton, -S str skeleton file
--skeletonwt, -W float skeleton weight
--helixlength, -L float helix length om angstroms
--da, -D float helix angular search step
--ppid int Set the PID of the parent process, used for cross platform PPID