This code plots a scatterplot with gradient colors:
import matplotlib.pyplot as plt
import numpy as np
x = np.arange(30)
y = x
t = x
plt.scatter(x, y, c=t)
plt.colorbar()
plt.show()
but how would I plot a gradient color line with a x and y coordinate?
Did you already have a look at https://matplotlib.org/3.1.1/gallery/lines_bars_and_markers/multicolored_line.html?
EDIT: as suggested in the comments, a minimal working example could be
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.collections import LineCollection
x = np.linspace(0,1, 100)
y = np.linspace(0,1, 100)
cols = np.linspace(0,1,len(x))
points = np.array([x, y]).T.reshape(-1, 1, 2)
segments = np.concatenate([points[:-1], points[1:]], axis=1)
fig, ax = plt.subplots()
lc = LineCollection(segments, cmap='viridis')
lc.set_array(cols)
lc.set_linewidth(2)
line = ax.add_collection(lc)
fig.colorbar(line,ax=ax)
