planck_colors

This IDL facility provides RGB color tables suitable for visualization of sky maps dominated by CMB or featuring foreground, and modify current color table. Those color tables can then be implemented in cartview, gnomview, mollview or orthview and were used in Planck 2013 publications

Location in HEALPix directory tree: src/idl/visu/planck_colors.pro 

FORMAT

IDL> PLANCK_COLORS, option, [GET=rgb, /HELP, /SHOW]

QUALIFIERS

option

required input for color table generation, must be either 1 or 2:
1: creates the 'parchment' Blue-red color table suitable for maps dominated by Gaussian signal (eg, CMB)
2: creates a Blue-red-white color table suitable for maps with high dynamic signal (eg, Galactic foreground)

KEYWORDS

GET=rgb

optional ouput, contains the newly created RGB color table in a [256, 3] array

/HELP

if set, prints extended help

/SHOW

if set, the chosen color table is shown in a new window

DESCRIPTION

planck_colors creates a set of RGB color tables suitable for specific purpose, and modify the current IDL color table accordingly (using TVLCT). See below the example applications. The created color table can also be output as a 256*3 array, or shown in a new window

RELATED ROUTINES

This section lists the routines related to planck_colors

idl

version 6.4 or more is necessary to run planck_colors.

cartview, gnomview

mollview, orthview

visualization routines that can make use of the color tables created in planck_colors (via keyword colt)

loadct

IDL routine to set current color table to one of the predefined IDL color tables (thus reverting the effect of planck_colors).

EXAMPLE:

planck_colors, 1, /show

planck_colors, 2, /show

Create and show the two color tables (see Fig. 7)

Figure 7: Illustration of the color tables created by planck_colors.