flip_axis - flip axis direction in raytrace
flip_axis uses the standard parameter interface
Input ray stream. If the filename is the string stdin, it reads the UNIX standard input stream. It accepts rays in bpipe format. The only prerequite on the ray stream is that the ray position
(BP_AXAF_phot_pos) field be present.
Output ray stream. If the filename is the string stdout, it writes to the UNIX standard output stream. It writes rays in bpipe format.
axis to be flipped. NOTE: this operation flips the parity of the
coordinate system unless two flip_axis operations are performed.
Print out flip_axis's version and exit.
Print out help and exit.
A list of debug flags. None are presently defined.
flip_axis reads a ray stream in bpipe format, flips the sign of the sign of the position component in the axis direction. If the stream contains direction vector information, the sign of the corresponding component of the direction vector is also flipped. The stream is written out as a bpipe formatted ray stream.
B
T. Gaetz
AUTHOR