Files
manim/old_projects/eola/thumbnails.py
2018-09-19 08:53:28 +05:30

153 lines
4.0 KiB
Python

from big_ol_pile_of_manim_imports import *
from old_projects.eola.chapter9 import Jennifer, You
class Chapter0(LinearTransformationScene):
CONFIG = {
"include_background_plane" : False,
"t_matrix" : [[3, 1], [2, -1]]
}
def construct(self):
self.setup()
self.plane.fade()
for mob in self.get_mobjects():
mob.set_stroke(width = 6)
self.apply_transposed_matrix(self.t_matrix, run_time = 0)
class Chapter1(Scene):
def construct(self):
arrow = Vector(2*UP+RIGHT)
vs = TextMobject("vs.")
array = Matrix([1, 2])
array.set_color(TEAL)
everyone = VMobject(arrow, vs, array)
everyone.arrange_submobjects(RIGHT, buff = 0.5)
everyone.set_height(4)
self.add(everyone)
class Chapter2(LinearTransformationScene):
def construct(self):
self.lock_in_faded_grid()
vectors = VMobject(*[
Vector([x, y])
for x in np.arange(-int(FRAME_X_RADIUS)+0.5, int(FRAME_X_RADIUS)+0.5)
for y in np.arange(-int(FRAME_Y_RADIUS)+0.5, int(FRAME_Y_RADIUS)+0.5)
])
vectors.set_submobject_colors_by_gradient(PINK, BLUE_E)
words = TextMobject("Span")
words.scale(3)
words.to_edge(UP)
words.add_background_rectangle()
self.add(vectors, words)
class Chapter3(Chapter0):
CONFIG = {
"t_matrix" : [[3, 0], [2, -1]]
}
class Chapter4p1(Chapter0):
CONFIG = {
"t_matrix" : [[1, 0], [1, 1]]
}
class Chapter4p2(Chapter0):
CONFIG = {
"t_matrix" : [[1, 2], [-1, 1]]
}
class Chapter5(LinearTransformationScene):
def construct(self):
self.plane.fade()
self.add_unit_square()
self.plane.set_stroke(width = 6)
VMobject(self.i_hat, self.j_hat).set_stroke(width = 10)
self.square.set_fill(YELLOW, opacity = 0.7)
self.square.set_stroke(width = 0)
self.apply_transposed_matrix(self.t_matrix, run_time = 0)
class Chapter9(Scene):
def construct(self):
you = You()
jenny = Jennifer()
you.change_mode("erm")
jenny.change_mode("speaking")
you.shift(LEFT)
jenny.shift(2*RIGHT)
vector = Vector([3, 2])
vector.center().shift(2*DOWN)
vector.set_stroke(width = 8)
vector.tip.scale_in_place(2)
you.coords = Matrix([3, 2])
jenny.coords = Matrix(["5/3", "1/3"])
for pi in jenny, you:
pi.bubble = pi.get_bubble(SpeechBubble, width = 3, height = 3)
if pi is you:
pi.bubble.shift(MED_SMALL_BUFF*RIGHT)
else:
pi.coords.scale(0.8)
pi.bubble.shift(MED_SMALL_BUFF*LEFT)
pi.bubble.add_content(pi.coords)
pi.add(pi.bubble, pi.coords)
pi.look_at(vector)
self.add(you, jenny, vector)
class Chapter10(LinearTransformationScene):
CONFIG = {
"foreground_plane_kwargs" : {
"x_radius" : FRAME_WIDTH,
"y_radius" : FRAME_HEIGHT,
"secondary_line_ratio" : 1
},
"include_background_plane" : False,
}
def construct(self):
v_tex = "\\vec{\\textbf{v}}"
eq = TexMobject("A", v_tex, "=", "\\lambda", v_tex)
eq.set_color_by_tex(v_tex, YELLOW)
eq.set_color_by_tex("\\lambda", MAROON_B)
eq.scale(3)
eq.add_background_rectangle()
eq.shift(2*DOWN)
title = TextMobject(
"Eigen", "vectors \\\\",
"Eigen", "values"
, arg_separator = "")
title.scale(2.5)
title.to_edge(UP)
# title.set_color_by_tex("Eigen", MAROON_B)
title[0].set_color(YELLOW)
title[2].set_color(MAROON_B)
title.add_background_rectangle()
self.add_vector([-1, 1], color = YELLOW, animate = False)
self.apply_transposed_matrix([[3, 0], [1, 2]])
self.plane.fade()
self.remove(self.j_hat)
self.add(eq, title)