def get_triangles(self):
triangle = Polygon(LEFT / np.sqrt(3),
UP,
RIGHT / np.sqrt(3),
color=GREEN)
triangles = Mobject(triangle.copy().scale(0.5).shift(LEFT), triangle,
triangle.copy().scale(0.3).shift(0.5 * UP + RIGHT))
triangles.center()
return triangles
def generate_points(self):
start_angle = np.pi / 2 + self.arc_angle / 2
end_angle = np.pi / 2 - self.arc_angle / 2
self.add(Arc(start_angle=start_angle, angle=-self.arc_angle))
tick_angle_range = np.linspace(start_angle, end_angle, self.num_ticks)
for index, angle in enumerate(tick_angle_range):
vect = rotate_vector(RIGHT, angle)
tick = Line((1 - self.tick_length) * vect, vect)
label = TexMobject(str(10 * index))
label.scale_to_fit_height(self.tick_length)
label.shift((1 + self.tick_length) * vect)
self.add(tick, label)
needle = Polygon(LEFT,
UP,
RIGHT,
stroke_width=0,
fill_opacity=1,
fill_color=self.needle_color)
needle.stretch_to_fit_width(self.needle_width)
needle.stretch_to_fit_height(self.needle_height)
needle.rotate(start_angle - np.pi / 2)
self.add(needle)
self.needle = needle
self.center_offset = self.get_center()
def get_triangles(self):
triangle = Polygon(
LEFT/np.sqrt(3),
UP,
RIGHT/np.sqrt(3),
color = GREEN
)
triangles = Mobject(
triangle.copy().scale(0.5).shift(LEFT),
triangle,
triangle.copy().scale(0.3).shift(0.5*UP+RIGHT)
)
triangles.center()
return triangles
def generate_points(self):
start_angle = np.pi/2 + self.arc_angle/2
end_angle = np.pi/2 - self.arc_angle/2
self.add(Arc(
start_angle = start_angle,
angle = -self.arc_angle
))
tick_angle_range = np.linspace(start_angle, end_angle, self.num_ticks)
for index, angle in enumerate(tick_angle_range):
vect = rotate_vector(RIGHT, angle)
tick = Line((1-self.tick_length)*vect, vect)
label = TexMobject(str(10*index))
label.scale_to_fit_height(self.tick_length)
label.shift((1+self.tick_length)*vect)
self.add(tick, label)
needle = Polygon(
LEFT, UP, RIGHT,
stroke_width = 0,
fill_opacity = 1,
fill_color = self.needle_color
)
needle.stretch_to_fit_width(self.needle_width)
needle.stretch_to_fit_height(self.needle_height)
needle.rotate(start_angle - np.pi/2)
self.add(needle)
self.needle = needle
self.center_offset = self.get_center()
def get_seed_shape(self):
return Polygon(
RIGHT,
np.sqrt(3) * UP,
LEFT,
)
