ManimFiles：我的Twitter动画代码

from manim import * import numpy as np import math NEW_BLUE = "#68a8e1" class Thumbnail(GraphScene): def __init__(self, **kwargs): self.CONFIG = { "x_min" :0, "x_max": 4, "y_min" :0, # "y_tick_frequency":0.1, "x_tick_frequency":1, "x_axis_width":6, "y_axis_height":4, "exclude_zero_label" :False, "axes_color":GREY, "graph_origin":ORIGIN-2 +LEFT, "x_labeled_nums":[0,2,4] } GraphScene.__init__(self, **self.CONFIG) def construct(self): self.show_function_graph() def show_function_graph(self): self.setup_axes(animate=True) img = ImageMobject('/home/niwhskal/Downloads/Untitled45.png').scale(0.2).to_corner(DR) self.add(img) y_ax = Tex(r"Number\\of\\students $\uparrow$").next_to(self.axes[1], LEFT).scale(0.6) x_ax = Tex(r"GPA $\rightarrow$").next_to(self.axes[0], DOWN).scale(0.6) self.play(Write(y_ax)) self.play(Write(x_ax)) def func(x): return 15*(1/np.sqrt(2*np.pi*1))*(np.exp(-((x-2)**2)/(2*1))) def rect(x): return 2.775*(x-1.5)+3.862 recta = self.get_graph(rect,x_min=0,x_max=4) graph = self.get_graph(func,x_min=0,x_max=4) graph.set_color(NEW_BLUE) input_tracker_p1 = ValueTracker(1.5) input_tracker_p2 = ValueTracker(3.5) def get_x_value(input_tracker): return input_tracker.get_value() def get_y_value(input_tracker): return graph.underlying_function(get_x_value(input_tracker)) def get_x_point(input_tracker): return self.coords_to_point(get_x_value(input_tracker), 0) def get_y_point(input_tracker): return self.coords_to_point(0, get_y_value(input_tracker)) def get_graph_point(input_tracker): return self.coords_to_point(get_x_value(input_tracker), get_y_value(input_tracker)) def get_v_line(input_tracker): return DashedLine(get_x_point(input_tracker), get_graph_point(input_tracker), stroke_width=2) def get_h_line(input_tracker): return DashedLine(get_graph_point(input_tracker), get_y_point(input_tracker), stroke_width=2) kwargs = { "x_min" : 0, "x_max" : 4, "fill_opacity" : 0.75, "stroke_width" : 0.25} self.graph=graph iteraciones=6 self.rect_list = self.get_riemann_rectangles_list( graph, iteraciones,start_color=PURPLE,end_color=ORANGE, **kwargs ) flat_rects = self.get_riemann_rectangles( self.get_graph(lambda x : 0), dx = 0.5,start_color=invert_color(PURPLE),end_color=invert_color(ORANGE),**kwargs ) rects = self.rect_list[0] pop = Tex(r"Student \\ population").scale(0.7).next_to(self.graph, UP*2) self.play(Write(pop)) equalto = Tex("= 100").scale(0.7).next_to(pop, RIGHT) self.play(Write(equalto)) self.transform_between_riemann_rects( flat_rects, rects, replace_mobject_with_target_in_scene = True, run_time=1 ) for j in range(4,6): for w in self.rect_list[j]: color=w.get_color() w.set_stroke(color,1.5) for j in range(1,6): num1 = 1000*j*j eq = Tex("= ", str(num1), color = GREEN).scale(0.7).next_to(pop,RIGHT) self.play(ReplacementTransform(equalto, eq)) self.transform_between_riemann_rects( self.rect_list[j-1], self.rect_list[j], dx=1, replace_mobject_with_target_in_scene = True, run_time=1 ) equalto = eq self.play(ShowCreation(graph)) self.wait(2) y_axNew = Tex(r"probability\\density $\uparrow$").next_to(self.axes[1], LEFT).scale(0.6) self.remove(pop) self.remove(eq) self.remove(equalto) self.play(ReplacementTransform(y_ax, y_axNew)) self.play(ApplyMethod(self.graph.shift, UP)) gau_eqn = Tex("=", "$\\frac{1}{\\sqrt{2\\pi\\sigma^2}}$", "$e^{\\frac{(x-\\mu)^2}{2\\sigma^2}}$").next_to(self.graph, RIGHT) gau_eqn[1][6].set_color(PURPLE_D) gau_eqn[2][4].set_color(BLUE) gau_eqn[2][9].set_color(PURPLE_D) # gau_eqn.set_color_by_tex("$\sigma$", PURPLE_D) self.play(Write(gau_eqn)) self.play(ApplyMethod(self.graph.shift, DOWN)) line1 = self.get_vertical_line_to_graph(2, graph, DashedLine, color = BLUE) dot = Dot(color = BLUE).move_to(self.coords_to_point(2,0)) m_text = Tex(r"$\mu$", color = BLUE).scale(0.8).next_to(dot, UP).shift(RIGHT*0.3) self.play(ShowCreation(line1), ShowCreation(dot), Write(m_text)) setts = { "dash_length": 0.05, "dash_spacing": None, "positive_space_ratio": 0.5, } line_sig = DoubleArrow(self.coords_to_point(1,func(1)), self.coords_to_point(3, func(3)), color = PURPLE_D, **setts) sigtext = Tex(r"$\sigma$", color = PURPLE_D).scale(0.7).next_to(line_sig, UP*0.5).shift(LEFT*0.3) self.play(ShowCreation(line_sig), Write(sigtext)) self.wait(5)