def clip_to_rect_helper(self, desired, scale, clip_rects):
""" desired -- 2D array with a single channels expected byte pattern.
scale -- used in scale_ctm() to change the ctm.
clip_args -- passed in as *clip_args to clip_to_rect.
"""
shp = tuple(transpose(desired.shape))
gc = GraphicsContextArray(shp, pix_format="rgb24")
gc.scale_ctm(scale, scale)
# clear background to white values (255, 255, 255)
gc.clear((1.0, 1.0, 1.0))
if isinstance(clip_rects, tuple):
gc.clip_to_rect(*clip_rects)
else:
for rect in clip_rects:
gc.clip_to_rect(*rect)
gc.rect(0, 0, 4, 4)
# These settings allow the fastest path.
gc.set_fill_color((0.0, 0.0, 0.0)) # black
gc.fill_path()
# test a single color channel
actual = gc.bmp_array[:, :, 0]
self.assertRavelEqual(desired, actual)
def clip_to_rect_helper(self, desired, scale, clip_rects):
""" desired -- 2D array with a single channels expected byte pattern.
scale -- used in scale_ctm() to change the ctm.
clip_args -- passed in as *clip_args to clip_to_rect.
"""
shp = tuple(transpose(desired.shape))
gc = GraphicsContextArray(shp, pix_format="rgb24")
gc.scale_ctm(scale, scale)
# clear background to white values (255, 255, 255)
gc.clear((1.0, 1.0, 1.0))
if isinstance(clip_rects, tuple):
gc.clip_to_rect(*clip_rects)
else:
for rect in clip_rects:
gc.clip_to_rect(*rect)
gc.rect(0, 0, 4, 4)
# These settings allow the fastest path.
gc.set_fill_color((0.0, 0.0, 0.0)) # black
gc.fill_path()
# test a single color channel
actual = gc.bmp_array[:,:,0]
self.assertRavelEqual(desired, actual)
def successive_clip_helper(self, desired, scale, clip_rect1, clip_rect2):
""" desired -- 2D array with a single channels expected byte pattern.
scale -- used in scale_ctm() to change the ctm.
clip_rect1 -- 1st clipping path.
clip_rect2 -- 2nd clipping path.
"""
shp = tuple(transpose(desired.shape))
gc = GraphicsContextArray(shp, pix_format="rgb24")
gc.scale_ctm(scale, scale)
# clear background to white values (255, 255, 255)
gc.clear((1.0, 1.0, 1.0))
gc.clip_to_rect(*clip_rect1)
gc.clip_to_rect(*clip_rect2)
gc.rect(0, 0, 4, 4)
# These settings allow the fastest path.
gc.set_fill_color((0.0, 0.0, 0.0)) # black
gc.fill_path()
# test a single color channel
actual = gc.bmp_array[:, :, 0]
self.assertRavelEqual(desired, actual)
def successive_clip_helper(self, desired, scale,
clip_rect1, clip_rect2):
""" desired -- 2D array with a single channels expected byte pattern.
scale -- used in scale_ctm() to change the ctm.
clip_rect1 -- 1st clipping path.
clip_rect2 -- 2nd clipping path.
"""
shp = tuple(transpose(desired.shape))
gc = GraphicsContextArray(shp, pix_format="rgb24")
gc.scale_ctm(scale, scale)
# clear background to white values (255, 255, 255)
gc.clear((1.0, 1.0, 1.0))
gc.clip_to_rect(*clip_rect1)
gc.clip_to_rect(*clip_rect2)
gc.rect(0, 0, 4, 4)
# These settings allow the fastest path.
gc. set_fill_color((0.0, 0.0, 0.0)) # black
gc.fill_path()
# test a single color channel
actual = gc.bmp_array[:,:,0]
self.assertRavelEqual(desired, actual)
