PFS - Palette

Create a palette file for use with Mike Zero based on a matplotlib colormap

import mikeio
from io import StringIO

Start with a simple palette skeleton

text = """
[PALETTE_FILE]
   [MIKEZero_Palette_Definition]
      Palette_Title = 'Palette'
      Palette_Type = 0
      Locked = false
      Topmost_Value = false
      Nice_Value = true
      RGB_Delete_Color = 255, 255, 255
      RGB_Color_Value = 122, 209, 81
      RGB_Color_Value = 253, 231, 37
   EndSect  // MIKEZero_Palette_Definition

EndSect  // PALETTE_FILE
"""
pfs = mikeio.read_pfs(StringIO(text), unique_keywords=False)
from matplotlib import cm

cm.viridis
viridis
viridis colormap
under
bad
over 
import math
import numpy as np
vals = np.linspace(0,1, 16)
rgbs = [[math.floor(255*x) for x in cm.viridis(val)[:3]] for val in vals]

rgbs
[[68, 1, 84],
 [72, 25, 107],
 [70, 47, 124],
 [64, 67, 135],
 [56, 86, 139],
 [48, 103, 141],
 [41, 120, 142],
 [35, 136, 141],
 [30, 152, 138],
 [34, 167, 132],
 [53, 183, 120],
 [83, 197, 103],
 [121, 209, 81],
 [165, 218, 53],
 [210, 225, 27],
 [253, 231, 36]]
pfs.PALETTE_FILE.MIKEZero_Palette_Definition.RGB_Color_Value = rgbs
pfs.write("viridis.pal")
!cat viridis.pal
// Created     : 2022-11-10 18:13:12
// By          : MIKE IO
// Version     : 1.2.2

[PALETTE_FILE]
   [MIKEZero_Palette_Definition]
      Palette_Title = 'Palette'
      Palette_Type = 0
      Locked = false
      Topmost_Value = false
      Nice_Value = true
      RGB_Delete_Color = 255, 255, 255
      RGB_Color_Value = 68, 1, 84
      RGB_Color_Value = 72, 25, 107
      RGB_Color_Value = 70, 47, 124
      RGB_Color_Value = 64, 67, 135
      RGB_Color_Value = 56, 86, 139
      RGB_Color_Value = 48, 103, 141
      RGB_Color_Value = 41, 120, 142
      RGB_Color_Value = 35, 136, 141
      RGB_Color_Value = 30, 152, 138
      RGB_Color_Value = 34, 167, 132
      RGB_Color_Value = 53, 183, 120
      RGB_Color_Value = 83, 197, 103
      RGB_Color_Value = 121, 209, 81
      RGB_Color_Value = 165, 218, 53
      RGB_Color_Value = 210, 225, 27
      RGB_Color_Value = 253, 231, 36
   EndSect  // MIKEZero_Palette_Definition

EndSect  // PALETTE_FILE