Add line_colours_from_colour_ramp.py

plots/line_colours_from_colour_map.py

@@ -0,0 +1,33 @@
+import os
+import numpy as np
+import matplotlib.pyplot as plt
+
+# Generate dummy data
+delta = 0.3
+x = np.arange(-1.05, 1.1, delta)
+y = np.arange(-1.05, 1.1, delta)
+X, Y = np.meshgrid(x, y)
+Z = X * Y
+
+# Generate colours from defined colours map
+cmap = plt.get_cmap('RdYlGn', 10)
+c = cmap(range(cmap.N))
+
+# Remove light colours in middle of colour map
+reds = c[:4, :]
+greens = c[6:, :]
+colours = np.vstack([reds, greens])
+
+fig, ax = plt.subplots(1, 1, figsize=(6, 4))
+
+for i in range(Z.shape[0]):
+    ax.plot(x, Z[i, :], c=colours[i], linewidth=3, alpha=0.6)
+
+# Hide spines and ticks
+ax.set_axis_off()
+
+# Export figure
+png_name = os.path.join(
+    'png',
+    os.path.basename(__file__).replace('.py', '.png').replace('_', '-'))
+plt.savefig(png_name, bbox_inches='tight', dpi=100)