SU3DCHART - plot x-midpoints vs. y-midpoints for 3-D data

su3dchart <stdin >stdout

Optional parameters:
outpar=null name of parameter file
degree=0 =1 convert seconds of arc to degrees

The output is the (x, y) pairs of binary floats

Example:
su3dchart <segy_data outpar=pfile >plot_data
psgraph <plot_data par=pfile \\
linewidth=0 marksize=2 mark=8 | ...
rm plot_data

su3dchart <segy_data | psgraph n=1024 d1=.004 \\
linewidth=0 marksize=2 mark=8 | ...

Note: sx, etc., are declared double because float has only 7
significant numbers, that's not enough, for example,
when tr.scalco=100 and coordinates are in second of arc
and located near 30 degree latitude and 59 degree longitude



Credits:
CWP: Shuki Ronen
Toralf Foerster

Trace header fields accessed: sx, sy, gx, gy, counit, scalco.