1 files changed, 32 insertions, 0 deletions
diff --git a/beam_tracing/python/colorGradient.py b/beam_tracing/python/colorGradient.py
new file mode 100644
index 0000000..dd9c856
--- /dev/null
+++ b/beam_tracing/python/colorGradient.py
@@ -0,0 +1,32 @@
+import colorsys
+import numpy as np
+
+def colorGradient(pos, baseColorRGB, nColors):
+# returns rgb=[R,G,B] components from the brightness gradient of the base color
+# base_color_rgb - [R,G,B] of the base color
+# Ncolors - number of positions in gradient
+
+   # color map  as gradient of particular color
+   # starting values
+   hsv_s = colorsys.rgb_to_hsv(baseColorRGB[0], baseColorRGB[1], baseColorRGB[2])
+   hue_f = hsv_s[0]
+   sat_f = hsv_s[1]
+   val_f = hsv_s[2]
+   # stop values
+   hue_s = hue_f
+   sat_s = 0
+   val_s = 1
+   hue = np.linspace(hue_s, hue_f, nColors)
+   sat = np.linspace(sat_s, sat_f, nColors)
+   val = np.linspace(val_s, val_f, nColors)
+ 
+   # check that pos is with in the reach
+   pos = np.floor(pos)
+   if pos < 1:
+      pos = 1
+   if pos > nColors:
+      pos = nColors
+   
+   pos = int(pos)
+   RGB = colorsys.hsv_to_rgb(hue[pos-1], sat[pos-1], val[pos-1])
+   return RGB
+\ No newline at end of file