// cpt-city: gmt/GMT_polar (cpt)
//
// Palettes distributed with the Generic Mapping Tools (GMT)
//
// author: Paul Wessel, Walter Smith, Andreas Trawoeger
// copyright: GPLv2
// year: 2004, 2010
// url: https://phillips.shef.ac.uk/pub/cpt-city/gmt
#declare GMT_polar =
color_map {
  [0.00000 color rgbf <0.0000,0.0000,1.0000,0.0000>]
  [0.50000 color rgbf <1.0000,1.0000,1.0000,0.0000>]
  [1.00000 color rgbf <1.0000,0.0000,0.0000,0.0000>]
}