svn co https://svn.janelia.org/penglab/projects/vaa3d_tools/released_plugins/v3d_plugins/swc_to_maskimage

   Usage : v3d -x swc_to_maskimage_sphere_unit -f swc_to_maskimage -i <inswc_file> [-p <sz0> <sz1> <sz2>] [-o <maskimage.raw>]