def sampled(line,NUM_SAMPLES):
pts = []
(start,end) = Vector2D.end_points(line)
dist = Vector2D.pt_distance(start,end)
for i in range(NUM_SAMPLES):
pt = Vector2D.extrapolate(line, dist * i / float(NUM_SAMPLES))
pts.append(pt)
return pts
def draw_seg(self,img,seg,color):
(start,end) = Vector2D.end_points(seg)
cv.Line(img,start,end,color,3)
