[Matplotlib-users] hot to draw a line connecting a list of points

[robert r. <ro...@re...>]

hi there,

I would like to draw a a set of lines on top of an image.
Somehow I do not get the result I want

these are the points ((267, 140), (380, 773), (267, 958))

one of my divers atempts is:

pic = plt.imread('../hlwd/effizienz_balken_01.jpg')
pic = np.fliplr(np.rot90(pic, k=2))
plt.imshow(pic)

frame1 = plt.gca()

lx = []
ly = []
for pt in ((267, 140), (380, 773), (267, 958)):
     lx.append(pt[0])
     ly.append(pt[1])
x,y = np.array([lx, ly])
line = mlines.Line2D(x, y, lw=5., alpha=0.4)

frame1.add_line(line)

plt.show()

which produces on line instad of two.

thanks for any pointers
robert