// cpt-city: jmn/jmn-c16 (cpt)
//
// A colourmap with monotonic luminance for simultaneous colour and
// grey-scale publications.
//
// J. McNames, "An effective color scale for simultaneous color and
// gray-scale publications," in IEEE Signal Processing Magazine,
// vol. 23, no. 1, pp. 82-96, Jan. 2006,
//
// author: James McNames
// copyright: Free to use
// year: 2009
// url: https://phillips.shef.ac.uk/pub/cpt-city/jmn
#declare jmn_c16 =
color_map {
  [0.00000 color rgbf <1.0000,1.0000,1.0000,0.0000>]
  [0.06667 color rgbf <0.9373,0.8706,0.9843,0.0000>]
  [0.13333 color rgbf <0.8235,0.7765,0.9961,0.0000>]
  [0.20000 color rgbf <0.6627,0.7373,0.9922,0.0000>]
  [0.26667 color rgbf <0.4902,0.7608,0.9451,0.0000>]
  [0.33333 color rgbf <0.3333,0.8314,0.8314,0.0000>]
  [0.40000 color rgbf <0.2353,0.9176,0.6392,0.0000>]
  [0.46667 color rgbf <0.2235,0.9804,0.3882,0.0000>]
  [0.53333 color rgbf <0.3216,0.9137,0.1569,0.0000>]
  [0.60000 color rgbf <0.4392,0.7176,0.0353,0.0000>]
  [0.66667 color rgbf <0.4980,0.4980,0.0000,0.0000>]
  [0.73333 color rgbf <0.4784,0.2941,0.0235,0.0000>]
  [0.80000 color rgbf <0.3922,0.1373,0.0627,0.0000>]
  [0.86667 color rgbf <0.2627,0.0431,0.0902,0.0000>]
  [0.93333 color rgbf <0.1176,0.0039,0.0706,0.0000>]
  [1.00000 color rgbf <0.0000,0.0000,0.0000,0.0000>]
}