Particle Coordinate File formats
SAMUEL considers *.dat, *.plt and *.box coordinate files in SPIDER, IMAGIC and EMAN Boxer convention, respectively. The coordinate files can be converted between these conventions using "samcopycoor.py".
SPIDER and IMAGIC have the origin at the left top corner (but their X and Y are exchanged), while EMAN has the origin at the left bottom corner. EMAN Boxer coordinate records the corner position and a box size, instead of just the box center.