def draw_line(self, img, pixmapper, pt1, pt2, colour, linewidth):
'''draw a line on the image'''
pix1 = pixmapper(pt1)
pix2 = pixmapper(pt2)
clipped = cv.ClipLine((img.width, img.height), pix1, pix2)
if clipped is None:
return
(pix1, pix2) = clipped
cv.Line(img, pix1, pix2, colour, linewidth)
cv.Circle(img, pix2, linewidth * 2, colour)
def draw_line(self, img, pixmapper, pt1, pt2, colour, linewidth):
'''draw a line on the image'''
pix1 = pixmapper(pt1)
pix2 = pixmapper(pt2)
clipped = cv.ClipLine((img.width, img.height), pix1, pix2)
if clipped is None:
if len(self._pix_points) == 0:
self._pix_points.append(None)
self._pix_points.append(None)
return
(pix1, pix2) = clipped
cv.Line(img, pix1, pix2, colour, linewidth)
cv.Circle(img, pix2, linewidth * 2, colour)
if len(self._pix_points) == 0:
self._pix_points.append(pix1)
self._pix_points.append(pix2)
