gpsprof: higher resolution

[John Ackermann N8UR]

I just did a test of a u-blox M8P with very high quality RTK (data from 
same antenna) and high precision (seven decimal place) NMEA output. 
Running 12 hours of results through gpsprof yields CEP of a few 
millimeters; very cool!

But the gpsprof plot isn't very useful; see attached. I'm guessing that 
I'm running up against some limit that prevents getting a proper scale 
for the very small values.

If someone can provide me a pointer to a likely place to hack gpsprof to 
allow mm level scaling, I'm happy to go in and try it.

Thanks,
John

neo-m8p-rtk.png
Description: PNG image