def round_corners(self, radius=0.5):
vertices = self.get_vertices()
arcs = []
for v1, v2, v3 in adjacent_n_tuples(vertices, 3):
vect1 = v2 - v1
vect2 = v3 - v2
unit_vect1 = normalize(vect1)
unit_vect2 = normalize(vect2)
angle = angle_between_vectors(vect1, vect2)
# Negative radius gives concave curves
angle *= np.sign(radius)
# Distance between vertex and start of the arc
cut_off_length = radius * np.tan(angle / 2)
# Determines counterclockwise vs. clockwise
sign = np.sign(np.cross(vect1, vect2)[2])
arc = ArcBetweenPoints(
v2 - unit_vect1 * cut_off_length,
v2 + unit_vect2 * cut_off_length,
angle=sign * angle
)
arcs.append(arc)
self.clear_points()
# To ensure that we loop through starting with last
arcs = [arcs[-1], *arcs[:-1]]
for arc1, arc2 in adjacent_pairs(arcs):
self.append_points(arc1.points)
line = Line(arc1.get_end(), arc2.get_start())
# Make sure anchors are evenly distributed
len_ratio = line.get_length() / arc1.get_arc_length()
line.insert_n_curves(
int(arc1.get_num_curves() * len_ratio)
)
self.append_points(line.get_points())
return self
def round_corners(self, radius=0.5):
vertices = self.get_vertices()
arcs = []
for v1, v2, v3 in adjacent_n_tuples(vertices, 3):
vect1 = v2 - v1
vect2 = v3 - v2
unit_vect1 = normalize(vect1)
unit_vect2 = normalize(vect2)
angle = angle_between_vectors(vect1, vect2)
# Negative radius gives concave curves
angle *= np.sign(radius)
# Distance between vertex and start of the arc
cut_off_length = radius * np.tan(angle / 2)
# Determines counterclockwise vs. clockwise
sign = np.sign(np.cross(vect1, vect2)[2])
arc = ArcBetweenPoints(v2 - unit_vect1 * cut_off_length,
v2 + unit_vect2 * cut_off_length,
angle=sign * angle)
arcs.append(arc)
self.clear_points()
# To ensure that we loop through starting with last
arcs = [arcs[-1], *arcs[:-1]]
for arc1, arc2 in adjacent_pairs(arcs):
self.append_points(arc1.points)
line = Line(arc1.get_end(), arc2.get_start())
# Make sure anchors are evenly distributed
len_ratio = line.get_length() / arc1.get_arc_length()
line.insert_n_curves(int(arc1.get_num_curves() * len_ratio))
self.append_points(line.get_points())
return self
def round_corners(self, radius=0.5):
vertices = self.get_vertices()
arcs = []
for v1, v2, v3 in adjacent_n_tuples(vertices, 3):
vect1 = v2 - v1
vect2 = v3 - v2
unit_vect1 = normalize(vect1)
unit_vect2 = normalize(vect2)
angle = angle_between_vectors(vect1, vect2)
# Negative radius gives concave curves
angle *= np.sign(radius)
# Distance between vertex and start of the arc
cut_off_length = radius * np.tan(angle / 2)
# Determines counterclockwise vs. clockwise
sign = np.sign(np.cross(vect1, vect2)[2])
arcs.append(
ArcBetweenPoints(v2 - unit_vect1 * cut_off_length,
v2 + unit_vect2 * cut_off_length,
angle=sign * angle))
self.clear_points()
# To ensure that we loop through starting with last
arcs = [arcs[-1], *arcs[:-1]]
for arc1, arc2 in adjacent_pairs(arcs):
self.append_points(arc1.points)
self.add_line_to(arc2.get_start())
return self
