[ferret_users] Ferret - problems with Fprint (gksm2ps)

[Paul Young <paul.young@xxxxxxxxxxxxxxxx>]

Hi all,

Whilst we're on the subject of gksm2ps , I've recently had a problem
with converting *.plt to *.ps.... 

I have made my own colour palette to match the NASA lidar ozone plots
(see http://asd-www.larc.nasa.gov/lidar/data/tra13no1.gif for example).
I have included the contents of the colour bar (By_values) file below.

The problem is that the postscript file generated from Fprint/gksm2ps
contains 'NaN's, which I think are due to me specifying colour levels
for '-inf' and 'inf'. The problem can be resolved by using sed to edit
the postscript file (something like $ sed 's/NaN/1.0/g' in.ps > out.ps)
and the plot looks fine. But, is this a bug in gksm2ps? If so, do I win
a prize for spotting it!?

Thanks for any comments,

Paul

p.s. Here's my palette file

RGB_Mapping_By_value
!SetPt Red     Green    Blue
-inf   100     100      100
0      100      54.902  100
4       86.667  43.529  100
8       73.333  32.157  100
12      60      21.176  100
16      46.667   9.804  100
20      69.804 100      100
24      52.157  80      100
28      34.902  60      100
32      17.255  40      100
36       0      20      100
40      74.902 100       74.902
44      56.078 100       56.078
48      37.255 100       37.255
52      18.431 100       18.431
56       0     100        0
60     100     100        0
64     100      81.176    0
68     100      62.353    0
72     100      43.529    0
76     100      24.706    0
80     100       0        0
84      84.706   0        5.882
88      69.804   0       12.157
92      54.902   0       18.431
96      40       0       24.706
100      0       0        0
inf      0       0        0