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More chapter 5, plus some renaming fun

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This commit is contained in:
Grant Sanderson
2016-08-02 15:50:32 -07:00
parent 6fe057c0f9
commit 4f42f62b3c
19 changed files with 162 additions and 102 deletions
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20
old_projects/pythagorean_proof.py
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@ -13,7 +13,7 @@ A_COLOR = BLUE
B_COLOR = MAROON_D
C_COLOR = YELLOW
TEX_MOB_SCALE_VAL = 0.5
TEX_MOB_SCALE_FACTOR = 0.5
POINTS = np.array([
DOWN,
2*UP,
@ -47,7 +47,7 @@ class Triangle(Polygon):
return self
def add_letter(self, char, nudge = 0.3):
mob = TexMobject(char).scale(TEX_MOB_SCALE_VAL)
mob = TexMobject(char).scale(TEX_MOB_SCALE_FACTOR)
if char == "a":
points = self.get_vertices()[[0, 2, 1]]
elif char == "b":
@ -89,7 +89,7 @@ def c_square(**kwargs):
class DrawPointsReference(Scene):
def construct(self):
for point, count in zip(POINTS, it.count()):
mob = TexMobject(str(count)).scale(TEX_MOB_SCALE_VAL)
mob = TexMobject(str(count)).scale(TEX_MOB_SCALE_FACTOR)
mob.shift(POINTS[count])
self.add(mob)
@ -104,7 +104,7 @@ class DrawAllThreeSquares(Scene):
c = c_square()
self.add(Triangle(), a, b, c)
for letter, mob in zip("abc", [a, b, c]):
char_mob = TexMobject(letter+"^2").scale(TEX_MOB_SCALE_VAL)
char_mob = TexMobject(letter+"^2").scale(TEX_MOB_SCALE_FACTOR)
char_mob.shift(mob.get_center())
self.add(char_mob)
@ -235,8 +235,8 @@ class ShowBigRectangleDimensions(DrawAllThreeSquaresWithMoreTriangles):
for brace in u_brace, side_brace:
brace.shift(0.2*DOWN)
side_brace.rotate(-np.pi/2)
a_plus_2b = TexMobject("a+2b").scale(TEX_MOB_SCALE_VAL)
b_plus_2a = TexMobject("b+2a").scale(TEX_MOB_SCALE_VAL)
a_plus_2b = TexMobject("a+2b").scale(TEX_MOB_SCALE_FACTOR)
b_plus_2a = TexMobject("b+2a").scale(TEX_MOB_SCALE_FACTOR)
a_plus_2b.next_to(u_brace, DOWN)
b_plus_2a.next_to(side_brace, LEFT)
self.add_mobjects_among(locals().values())
@ -263,7 +263,7 @@ class DrawOnlyABSquares(Scene):
a = a_square()
b = b_square()
for char, mob in zip("ab", [a, b]):
symobl = TexMobject(char+"^2").scale(TEX_MOB_SCALE_VAL)
symobl = TexMobject(char+"^2").scale(TEX_MOB_SCALE_FACTOR)
symobl.shift(mob.get_center())
self.add(symobl)
triangle = Triangle()
@ -394,8 +394,8 @@ class ZoomInOnTroublePoint(Scene):
for mob in self.mobjects:
mob.rotate(np.pi/2)
if with_labels:
alpha = TexMobject("\\alpha").scale(TEX_MOB_SCALE_VAL)
beta = TexMobject("90-\\alpha").scale(TEX_MOB_SCALE_VAL)
alpha = TexMobject("\\alpha").scale(TEX_MOB_SCALE_FACTOR)
beta = TexMobject("90-\\alpha").scale(TEX_MOB_SCALE_FACTOR)
if rotate:
alpha.next_to(angle1_arc, UP+0.1*LEFT)
beta.next_to(angle2_arc, DOWN+0.5*LEFT)
@ -446,7 +446,7 @@ class LabelLargeSquare(DrawCSquareWithAllTraingles):
u_brace.shift(0.2*DOWN)
side_brace = deepcopy(u_brace).rotate(np.pi/2)
upper_brace = deepcopy(u_brace).rotate(np.pi)
a_plus_b = TexMobject("a+b").scale(TEX_MOB_SCALE_VAL)
a_plus_b = TexMobject("a+b").scale(TEX_MOB_SCALE_FACTOR)
upper_brace.add(a_plus_b.next_to(upper_brace, UP))
side_brace.add(a_plus_b.next_to(side_brace, RIGHT))
self.add(upper_brace, side_brace)