def add_cubic_bezier_curve(
self,
anchor1: npt.ArrayLike,
handle1: npt.ArrayLike,
handle2: npt.ArrayLike,
anchor2: npt.ArrayLike
):
new_points = get_quadratic_approximation_of_cubic(anchor1, handle1, handle2, anchor2)
self.append_points(new_points)
def add_cubic_bezier_curve_to(self, handle1, handle2, anchor):
"""
Add cubic bezier curve to the path.
"""
self.throw_error_if_no_points()
quadratic_approx = get_quadratic_approximation_of_cubic(
self.get_last_point(), handle1, handle2, anchor)
if self.has_new_path_started():
self.append_points(quadratic_approx[1:])
else:
self.append_points(quadratic_approx)
def change_anchor_mode(self, mode: str):
assert(mode in ("jagged", "approx_smooth", "true_smooth"))
nppc = self.n_points_per_curve
for submob in self.family_members_with_points():
subpaths = submob.get_subpaths()
submob.clear_points()
for subpath in subpaths:
anchors = np.vstack([subpath[::nppc], subpath[-1:]])
new_subpath = np.array(subpath)
if mode == "approx_smooth":
new_subpath[1::nppc] = get_smooth_quadratic_bezier_handle_points(anchors)
elif mode == "true_smooth":
h1, h2 = get_smooth_cubic_bezier_handle_points(anchors)
new_subpath = get_quadratic_approximation_of_cubic(anchors[:-1], h1, h2, anchors[1:])
elif mode == "jagged":
new_subpath[1::nppc] = 0.5 * (anchors[:-1] + anchors[1:])
submob.append_points(new_subpath)
submob.refresh_triangulation()
return self
def change_anchor_mode(self, mode):
assert (mode in ["jagged", "smooth"])
nppc = self.n_points_per_curve
for submob in self.family_members_with_points():
subpaths = submob.get_subpaths()
submob.clear_points()
for subpath in subpaths:
anchors = np.vstack([subpath[::nppc], subpath[-1:]])
new_subpath = np.array(subpath)
if mode == "smooth":
# TOOD, it's not clear which of the two options below should be the default,
# leaving option 1 here commented out as a temporary note.
# Option 1:
# new_subpath[1::nppc] = get_smooth_quadratic_bezier_handle_points(anchors)
# Option 2:
h1, h2 = get_smooth_cubic_bezier_handle_points(anchors)
new_subpath = get_quadratic_approximation_of_cubic(
anchors[:-1], h1, h2, anchors[1:])
elif mode == "jagged":
new_subpath[1::nppc] = 0.5 * (anchors[:-1] + anchors[1:])
submob.append_points(new_subpath)
submob.refresh_triangulation()
return self
