gpmap_gf mishandles imcbar frequency

[mzuranski]

Greetings. I am using gpmap_gf to display level 3 base reflectivity (N0Q) from a single site, and it appears that the frequency parameter of IMCBAR is not being applied properly. Using the 7.3.0 gpmap_gf binary and the below code, I get the resulting image: http://climate.cod.edu/zuranski/imcbar/gpmap73.gif. Even though I specify a frequency of -10, it's plotting every 5. Oddly, there may have been a similar issue with 6.8 as well. Same code using the 6.8 gpmap_gf binary results in this image: http://climate.cod.edu/zuranski/imcbar/gpmap68.gif. Note there are several differences, incuding the same inaccurate interval.

$mapfil = county+ushwy+base
RADFIL = $RAD/LOT/N0Q/20161019_1701
PROJ = rad//0;1.5;4;0
TITLE = 1/-0/2016-10-19 17:01 Z
PANEL = 0
DEVICE = gif|imagename.gif|250;230
CLEAR = Y
TEXT = .75/2/2/hw
COLORS = 7
WIND =
LINE =
CLRBAR =
IMCBAR = 31/V/CR/.98;.5/.84;.02/-10
GAREA = 40.53;-90.5;43;-87.2
LATLON = 0
LUTFIL = upc_dhr.tbl
MAP = 23/1+14/1+31//2
WARN = last|4;2;22|no|no|no|yes

[mzuranski]

I'm closing this issue out. It's ancient, and I'm pretty sure it's a result of #76.