[ferret_users] improper grid or axis definition: inappropriate orientation for Z axis

[Ryo Furue <furue@xxxxxxxxxx>]

Dear Ferret users,

I may be missing something but the attached script gives me

**ERROR: improper grid or axis definition: inappropriate orientation for Z axis

and I don't understand why. The most strange thing to me is that if you swap seemingly independent lines, the error goes away.

I'm using a rather old version of Ferret (Sorry!)

  FERRET v6.82

  Darwin 9.8.0 - 08/06/12

My OS is macOS 10.31.1 (High Sierra). The same thing happens on a very old mac (which seems to be from 2011 and whose kernel is 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011).

Best regards,

Ryo

---------------

! Swap lines (1) and (2) and the error goes away.

let dept_ =  { \

 2.500000, 7.561558, 12.806275, 18.351244, \

 24.306158, 30.770624, 37.831699, 45.561745, \

 54.016659, 63.234489, 73.234489, 84.016663, \

 95.561745, 107.831696, 120.770622, 134.306152, \

 148.351242, 162.806274, 177.561554, 192.500000, \

 207.500000, 223.171860, 240.853607, 261.866058, \

 287.501678, 319.013458, 357.604279, 404.416565, \

 460.522644, 526.915588, 604.500610, 694.087585, \

 796.383789, 911.988220, 1041.386353, 1184.945801, \

 1342.913452, 1515.413452, 1702.445801, 1903.886353, \

 2119.488281, 2348.883789, 2591.587646, 2847.000732, \

 3114.415527, 3393.022705, 3681.916504, 3980.104248, \

 4286.513672, 4600.001465, 4919.366211, 5243.353516, \

 5570.671875, 5900.000000 \

}

define axis/z/depth/units=meters/from_data ts_zax = dept_ !--(1)--

define axis/x=0.05:359.95:0.1/units=degrees_east   ts_xax !--(2)--

define grid/z=ts_zax tmpgrid2