Am using gmtspatial -N to identify where a line crosses a polygon.
Here is the output, which seems to correctly identify the two crossing points:
| -89.0972595313 | 35.6389038125 | 144.476986116 | 0.590274046875 | gcz_lg.txt | src_site_coords.txt |
|---|---|---|---|---|---|
| -90.7600487245 | 36.3040194898 | 134.646834736 | 0.423995127552 | gcz_lg.txt | src_site_coords.txt |
It identifies the lon lat of the points, and the input files. But what do the next two numbers mean? (144.47…, and 0.59…)
The command is: gmt spatial gcz_lg.txt src_site_coords.txt -Ie