def generate_points(self):
for vect in IN, OUT, LEFT, RIGHT, UP, DOWN:
face = Square(side_length=self.side_length)
face.shift(self.side_length * OUT / 2.0)
face.apply_function(lambda p: np.dot(p, z_to_vector(vect).T))
self.add(face)
def generate_points(self):
for vect in IN, OUT, LEFT, RIGHT, UP, DOWN:
face = Square(side_length=self.side_length)
face.shift(self.side_length * OUT / 2.0)
face.apply_function(lambda p: np.dot(p, z_to_vector(vect).T))
self.add(face)
def generate_points(self):
for vect in IN, OUT, LEFT, RIGHT, UP, DOWN:
face = ThreeDVMobject(Square(side_length=self.side_length))
face.make_jagged()
face.flip()
face.shift(self.side_length * OUT / 2.0)
face.apply_matrix(z_to_vector(vect))
self.add(face)
def generate_points(self):
for vect in IN, OUT, LEFT, RIGHT, UP, DOWN:
face = Square(
side_length=self.side_length,
shade_in_3d=True,
)
face.make_jagged()
face.flip()
face.shift(self.side_length * OUT / 2.0)
face.apply_matrix(z_to_vector(vect))
self.add(face)
def new_sector(self, r, dr, lower_angle, upper_angle):
alpha = self.max_opacity * self.opacity_function(r)
annular_sector = AnnularSector(inner_radius=r,
outer_radius=r + dr,
color=self.color,
fill_opacity=alpha,
start_angle=lower_angle,
angle=upper_angle - lower_angle)
# rotate (not project) it into the viewing plane
rotation_matrix = z_to_vector(self.projection_direction())
annular_sector.apply_matrix(rotation_matrix)
# now rotate it inside that plane
rotated_RIGHT = np.dot(RIGHT, rotation_matrix.T)
projected_RIGHT = self.project(RIGHT)
omega = angle_between_vectors(rotated_RIGHT, projected_RIGHT)
annular_sector.rotate(omega, axis=self.projection_direction())
annular_sector.move_arc_center_to(self.get_source_point())
return annular_sector
def new_sector(self, r, dr, lower_angle, upper_angle):
alpha = self.max_opacity * self.opacity_function(r)
annular_sector = AnnularSector(
inner_radius=r,
outer_radius=r + dr,
color=self.color,
fill_opacity=alpha,
start_angle=lower_angle,
angle=upper_angle - lower_angle
)
# rotate (not project) it into the viewing plane
rotation_matrix = z_to_vector(self.projection_direction())
annular_sector.apply_matrix(rotation_matrix)
# now rotate it inside that plane
rotated_RIGHT = np.dot(RIGHT, rotation_matrix.T)
projected_RIGHT = self.project(RIGHT)
omega = angle_between_vectors(rotated_RIGHT, projected_RIGHT)
annular_sector.rotate(omega, axis=self.projection_direction())
annular_sector.move_arc_center_to(self.get_source_point())
return annular_sector