def add_T_label(self,
x_val,
side=RIGHT,
label=None,
color=WHITE,
animated=False,
**kwargs):
triangle = RegularPolygon(n=3, start_angle=np.pi / 2)
triangle.scale_to_fit_height(MED_SMALL_BUFF)
triangle.move_to(self.coords_to_point(x_val, 0), UP)
triangle.set_fill(color, 1)
triangle.set_stroke(width=0)
if label == None:
T_label = TexMobject(self.variable_point_label, fill_color=color)
else:
T_label = TexMobject(label, fill_color=color)
T_label.next_to(triangle, DOWN)
v_line = self.get_vertical_line_to_graph(x_val,
self.v_graph,
color=YELLOW)
if animated:
self.play(DrawBorderThenFill(triangle), ShowCreation(v_line),
Write(T_label, run_time=1), **kwargs)
if np.all(side == LEFT):
self.left_T_label_group = VGroup(T_label, triangle)
self.left_v_line = v_line
self.add(self.left_T_label_group, self.left_v_line)
elif np.all(side == RIGHT):
self.right_T_label_group = VGroup(T_label, triangle)
self.right_v_line = v_line
self.add(self.right_T_label_group, self.right_v_line)
def generate_symbol(self):
symbol = RegularPolygon(
n=3,
stroke_width=0,
fill_color=self.color,
fill_opacity=1,
)
symbol.set_height(self.inner_radius)
return symbol
def generate_points(self):
self.points = []
inner_tri = RegularPolygon(n=3, start_angle=np.pi / 2)
outer_tri = RegularPolygon(n=3, start_angle=np.pi / 2)
inner_tri.flip()
inner_tri.set_height(self.inner_height, about_point=ORIGIN)
outer_tri.set_height(self.outer_height, about_point=ORIGIN)
self.points = outer_tri.points
self.add_subpath(inner_tri.points)
def generate_symbol(self):
symbol = VGroup(*[
RegularPolygon(
n=3, stroke_width=0, fill_color=self.color, fill_opacity=1)
for i in range(2)
])
symbol.arrange_submobjects(RIGHT, buff=0)
symbol.set_height(self.inner_radius * 0.7)
return symbol
def get_seed_shape(self):
return RegularPolygon(n=6)
def get_seed_shape(self):
return RegularPolygon(n=5, start_angle=np.pi / 2)
