def setup_in_uv_space(self):
u_values, v_values = self.get_u_values_and_v_values()
faces = VGroup()
for i in range(len(u_values) - 1):
for j in range(len(v_values) - 1):
u1, u2 = u_values[i:i + 2]
v1, v2 = v_values[j:j + 2]
face = ThreeDVMobject()
face.set_points_as_corners([
[u1, v1, 0],
[u2, v1, 0],
[u2, v2, 0],
[u1, v2, 0],
[u1, v1, 0],
])
faces.add(face)
face.u_index = i
face.v_index = j
face.u1 = u1
face.u2 = u2
face.v1 = v1
face.v2 = v2
faces.set_fill(
color=self.fill_color,
opacity=self.fill_opacity
)
faces.set_stroke(
color=self.stroke_color,
width=self.stroke_width,
opacity=self.stroke_opacity,
)
self.add(*faces)
if self.checkerboard_colors:
self.set_fill_by_checkerboard(*self.checkerboard_colors)
def setup_in_uv_space(self):
u_values, v_values = self.get_u_values_and_v_values()
faces = VGroup()
for i in range(len(u_values) - 1):
for j in range(len(v_values) - 1):
u1, u2 = u_values[i:i + 2]
v1, v2 = v_values[j:j + 2]
face = ThreeDVMobject()
face.set_points_as_corners([
[u1, v1, 0],
[u2, v1, 0],
[u2, v2, 0],
[u1, v2, 0],
[u1, v1, 0],
])
faces.add(face)
face.u_index = i
face.v_index = j
face.u1 = u1
face.u2 = u2
face.v1 = v1
face.v2 = v2
faces.set_fill(
color=self.fill_color,
opacity=self.fill_opacity
)
faces.set_stroke(
color=self.stroke_color,
width=self.stroke_width,
opacity=self.stroke_opacity,
)
self.add(*faces)
if self.checkerboard_colors:
self.set_fill_by_checkerboard(*self.checkerboard_colors)
def __init__(self, point, color=YELLOW, **kwargs):
digest_config(self, kwargs)
lines = VGroup()
for angle in np.arange(0, TAU, TAU / self.num_lines):
line = Line(ORIGIN, self.line_length * RIGHT)
line.shift((self.flash_radius - self.line_length) * RIGHT)
line.rotate(angle, about_point=ORIGIN)
lines.add(line)
lines.move_to(point)
lines.set_color(color)
lines.set_stroke(width=3)
line_anims = [
ShowCreationThenDestruction(
line, rate_func=squish_rate_func(smooth, 0, 0.5)
)
for line in lines
]
fade_anims = [
UpdateFromAlphaFunc(
line, lambda m, a: m.set_stroke(
width=self.line_stroke_width * (1 - a)
),
rate_func=squish_rate_func(smooth, 0, 0.75)
)
for line in lines
]
AnimationGroup.__init__(
self, *line_anims + fade_anims, **kwargs
)
def create_lines(self):
lines = VGroup()
for angle in np.arange(0, TAU, TAU / self.num_lines):
line = Line(ORIGIN, self.line_length * RIGHT)
line.shift((self.flash_radius - self.line_length) * RIGHT)
line.rotate(angle, about_point=ORIGIN)
lines.add(line)
lines.set_stroke(color=self.color, width=self.line_stroke_width)
lines.add_updater(lambda l: l.move_to(self.point))
return lines
def get_color_palette(self):
palette = VGroup(
*(Square(fill_color=color, fill_opacity=1, side_length=1)
for color in self.palette_colors))
palette.set_stroke(width=0)
palette.arrange(RIGHT, buff=0.5)
palette.set_width(FRAME_WIDTH - 0.5)
palette.to_edge(DOWN, buff=SMALL_BUFF)
palette.fix_in_frame()
return palette
