Return values from current absolute color table.
val = act_info(item)
item = Name of item. in
/LIST List color table info.
val = Returned value of item. out
z = Tiepoint value for each color entry.
h = Hue for each color entry.
s = Saturation for each color entry.
v = Value for each color entry.
r = Red component for each color entry.
g = Green component for each color entry.
b = Blue component for each color entry.
rgb = RGB or HSV flag.
step_flag = Stepped table flag.
step = Stepped table step size.
step_offset = Stepped table offset.
barmin = Color bar display minimum.
barmax = Color bar display maximum.
act_file = Name of act file used.
R. Sterner, 2008 May 21
R. Sterner, 2008 Nov 17 --- Modified common. Added /LIST.
R. Sterner, 2008 Nov 12 --- Fixed a typo in a comment.
R. Sterner, 2008 Nov 12 --- Now can return act file name.
R. Sterner, 2010 Mar 22 --- Now can return user added items in act file.
R. Sterner, 2010 Apr 12 --- Added /TABLES,/LIB_TABLES,DIR=dir.
R. Sterner, 2010 Nov 10,11 --- Handled Log color tables.
Copyright (C) 2008, Johns Hopkins University/Applied Physics Laboratory
This software may be used, copied, or redistributed as long as it is not
sold and this copyright notice is reproduced on each copy made. This
routine is provided as is without any express or implied warranties
whatsoever. Other limitations apply as described in the file disclaimer.txt.