// cpt-city: km/blue-tan (cpt)
//
// Diverging Color Maps for Scientific Visualization, Kenneth
// Moreland. ISVC '09: Proceedings of the 5th International
// Symposium on Advances in Visual Computing: Part II pp, 92-103
//
// author: Kenneth Moreland
// copyright: Public domain
// year: 2012
// url: https://phillips.shef.ac.uk/pub/cpt-city/km
#declare blue_tan =
color_map {
  [0.00000 color rgbf <0.2157,0.5255,0.9098,0.0000>]
  [0.01562 color rgbf <0.2275,0.5412,0.9137,0.0000>]
  [0.03125 color rgbf <0.2392,0.5529,0.9176,0.0000>]
  [0.04688 color rgbf <0.2510,0.5686,0.9216,0.0000>]
  [0.06250 color rgbf <0.2627,0.5804,0.9255,0.0000>]
  [0.07812 color rgbf <0.2745,0.5961,0.9294,0.0000>]
  [0.09375 color rgbf <0.2902,0.6118,0.9294,0.0000>]
  [0.10938 color rgbf <0.3020,0.6235,0.9333,0.0000>]
  [0.12500 color rgbf <0.3176,0.6392,0.9333,0.0000>]
  [0.14062 color rgbf <0.3333,0.6510,0.9333,0.0000>]
  [0.15625 color rgbf <0.3490,0.6627,0.9373,0.0000>]
  [0.17188 color rgbf <0.3647,0.6784,0.9373,0.0000>]
  [0.18750 color rgbf <0.3843,0.6902,0.9373,0.0000>]
  [0.20312 color rgbf <0.4000,0.7020,0.9333,0.0000>]
  [0.21875 color rgbf <0.4196,0.7176,0.9333,0.0000>]
  [0.23438 color rgbf <0.4392,0.7294,0.9333,0.0000>]
  [0.25000 color rgbf <0.4588,0.7412,0.9294,0.0000>]
  [0.26562 color rgbf <0.4824,0.7529,0.9294,0.0000>]
  [0.28125 color rgbf <0.5020,0.7647,0.9255,0.0000>]
  [0.29688 color rgbf <0.5255,0.7725,0.9255,0.0000>]
  [0.31250 color rgbf <0.5490,0.7843,0.9216,0.0000>]
  [0.32812 color rgbf <0.5725,0.7961,0.9176,0.0000>]
  [0.34375 color rgbf <0.5961,0.8039,0.9137,0.0000>]
  [0.35938 color rgbf <0.6235,0.8157,0.9098,0.0000>]
  [0.37500 color rgbf <0.6471,0.8235,0.9059,0.0000>]
  [0.39062 color rgbf <0.6745,0.8314,0.9059,0.0000>]
  [0.40625 color rgbf <0.7020,0.8392,0.9020,0.0000>]
  [0.42188 color rgbf <0.7294,0.8471,0.8980,0.0000>]
  [0.43750 color rgbf <0.7569,0.8549,0.8941,0.0000>]
  [0.45312 color rgbf <0.7882,0.8588,0.8902,0.0000>]
  [0.46875 color rgbf <0.8157,0.8667,0.8824,0.0000>]
  [0.48438 color rgbf <0.8471,0.8706,0.8784,0.0000>]
  [0.50000 color rgbf <0.8745,0.8745,0.8745,0.0000>]
  [0.51562 color rgbf <0.8784,0.8745,0.8471,0.0000>]
  [0.53125 color rgbf <0.8824,0.8745,0.8157,0.0000>]
  [0.54688 color rgbf <0.8863,0.8706,0.7882,0.0000>]
  [0.56250 color rgbf <0.8863,0.8667,0.7569,0.0000>]
  [0.57812 color rgbf <0.8902,0.8627,0.7255,0.0000>]
  [0.59375 color rgbf <0.8902,0.8588,0.6980,0.0000>]
  [0.60938 color rgbf <0.8902,0.8510,0.6667,0.0000>]
  [0.62500 color rgbf <0.8902,0.8431,0.6392,0.0000>]
  [0.64062 color rgbf <0.8863,0.8353,0.6078,0.0000>]
  [0.65625 color rgbf <0.8863,0.8275,0.5804,0.0000>]
  [0.67188 color rgbf <0.8824,0.8196,0.5490,0.0000>]
  [0.68750 color rgbf <0.8784,0.8078,0.5216,0.0000>]
  [0.70312 color rgbf <0.8745,0.7961,0.4941,0.0000>]
  [0.71875 color rgbf <0.8706,0.7843,0.4667,0.0000>]
  [0.73438 color rgbf <0.8667,0.7725,0.4392,0.0000>]
  [0.75000 color rgbf <0.8588,0.7608,0.4118,0.0000>]
  [0.76562 color rgbf <0.8510,0.7451,0.3843,0.0000>]
  [0.78125 color rgbf <0.8431,0.7333,0.3608,0.0000>]
  [0.79688 color rgbf <0.8353,0.7176,0.3373,0.0000>]
  [0.81250 color rgbf <0.8275,0.7020,0.3137,0.0000>]
  [0.82812 color rgbf <0.8196,0.6863,0.2902,0.0000>]
  [0.84375 color rgbf <0.8078,0.6706,0.2667,0.0000>]
  [0.85938 color rgbf <0.7961,0.6549,0.2471,0.0000>]
  [0.87500 color rgbf <0.7843,0.6353,0.2275,0.0000>]
  [0.89062 color rgbf <0.7725,0.6196,0.2078,0.0000>]
  [0.90625 color rgbf <0.7608,0.6000,0.1882,0.0000>]
  [0.92188 color rgbf <0.7490,0.5843,0.1686,0.0000>]
  [0.93750 color rgbf <0.7373,0.5647,0.1529,0.0000>]
  [0.95312 color rgbf <0.7216,0.5490,0.1373,0.0000>]
  [0.96875 color rgbf <0.7059,0.5294,0.1216,0.0000>]
  [0.98438 color rgbf <0.6941,0.5098,0.1059,0.0000>]
  [1.00000 color rgbf <0.6784,0.4902,0.0941,0.0000>]
}