Finishing touches to Winding

This commit is contained in:
Grant Sanderson 2018-03-26 10:57:41 -07:00
parent 25bc1faab2
commit 35270949ab
2 changed files with 106 additions and 14 deletions

View file

@ -602,12 +602,15 @@ def walker_animation_with_display(
display = DecimalNumber(0,
num_decimal_points = num_decimal_points,
fill_color = WHITE,
include_background_rectangle = True)
display.background_rectangle.fill_opacity = 0.5
display.background_rectangle.fill_color = GREY
display.background_rectangle.scale(1.2)
# include_background_rectangle = True
include_background_rectangle = False
)
# display.background_rectangle.fill_opacity = 0.5
# display.background_rectangle.fill_color = GREY
# display.background_rectangle.scale(1.2)
displaycement = 0.5 * DOWN # How about that pun, eh?
display.move_to(walker.get_center() + displaycement)
# display.move_to(walker.get_center() + displaycement)
display.next_to(walker, DOWN+RIGHT, SMALL_BUFF)
display_anim = ChangingDecimal(display,
number_update_func,
tracked_mobject = walker_anim.compound_walker.walker,
@ -2044,8 +2047,10 @@ class FundThmAlg(EquationSolver2d):
class SolveX5MinusXMinus1(EquationSolver2d):
CONFIG = {
"func" : plane_func_from_complex_func(lambda c : c**5 - c - 1),
"num_iterations" : 5,
"num_iterations" : 10,
"use_fancy_lines" : True,
"linger_parameter" : 0.5,
"show_cursor" : True,
}
class SolveX5MinusXMinus1Parallel(SolveX5MinusXMinus1):

View file

@ -1928,6 +1928,20 @@ class TinyLoopAroundRed(TinyLoop):
"target_coords" : (-1, 1),
}
class ConfusedPiCreature(PiCreatureScene):
def construct(self):
morty = self.pi_creature
morty.set_color(YELLOW_E)
morty.flip()
morty.center()
self.play(morty.change, "awe", DOWN+3*RIGHT)
self.wait(2)
self.play(morty.change, "confused")
self.wait(2)
self.play(morty.change, "pondering")
self.wait(2)
class FailureOfComposition(ColorMappedObjectsScene):
CONFIG = {
"func" : lambda p : (
@ -2354,7 +2368,6 @@ class TransitionFromPathsToBoundaries(ColorMappedObjectsScene):
self.start_rev = self.get_output_rev()
self.curr_winding = 0
class TransitionFromPathsToBoundariesArrowless(TransitionFromPathsToBoundaries):
CONFIG = {
"func" : plane_func_by_wind_spec(
@ -2644,9 +2657,7 @@ class PolynomialTerms(MonomialTerm):
class SearchSpacePerimeterVsArea(EquationSolver2d):
CONFIG = {
"func" : plane_func_by_wind_spec(
(-3, -1.3, 2), (0.1, 0.2, 1), (2.8, -2, 1)
),
"func" : example_plane_func,
"num_iterations" : 15,
"display_in_parallel" : False,
"use_fancy_lines" : True,
@ -2709,6 +2720,15 @@ class SearchSpacePerimeterVsArea(EquationSolver2d):
self.play(FadeOut(full_rect))
self.wait()
class ShowPolynomialFinalState(SolveX5MinusXMinus1):
CONFIG = {
"num_iterations" : 15,
}
def construct(self):
self.force_skipping()
SolveX5MinusXMinus1.construct(self)
self.revert_to_original_skipping_status()
class PiCreatureInAwe(Scene):
def construct(self):
randy = Randolph()
@ -2729,8 +2749,9 @@ class ShowComplexFunction(Scene):
def construct(self):
plane = ComplexPlane()
plane.add_coordinates()
plane.remove(plane.coordinate_labels[-1])
plane.show()
four_i = plane.coordinate_labels[-1]
plane.coordinate_labels.remove(four_i)
plane.remove(four_i)
title = TextMobject("Complex Plane")
title.to_edge(UP, buff = MED_SMALL_BUFF)
@ -2851,6 +2872,47 @@ class WindingNumbersInInputOutputContext(PathContainingZero):
rate_func = bezier([0, 0, 1, 1])
)
class SolveX5SkipToEnd(SolveX5MinusXMinus1):
CONFIG = {
"num_iterations" : 4,
}
def construct(self):
self.force_skipping()
SolveX5MinusXMinus1.construct(self)
self.revert_to_original_skipping_status()
mobjects = VGroup(*self.get_mobjects())
lines = VGroup()
rects = VGroup()
for mob in mobjects:
if mob.background_image_file is not None:
mob.set_stroke(width = 2)
lines.add(mob)
elif isinstance(mob, Polygon):
rects.add(mob)
else:
self.remove(mob)
self.clear()
self.add(lines, rects)
class ZeroFoundOnBoundary(Scene):
def construct(self):
arrow = Vector(DOWN+LEFT, color = WHITE)
words = TextMobject("Found zero on boundary!")
words.next_to(arrow.get_start(), UP)
words.shift(1.5*RIGHT)
point = VectorizedPoint()
point.next_to(arrow, DOWN+LEFT)
self.play(Flash(point))
self.play(
GrowArrow(arrow),
Write(words),
)
self.wait()
class AllOfTheVideos(Scene):
CONFIG = {
"camera_config" : {
@ -3188,8 +3250,33 @@ class EndScreen(PatreonEndScreen, PiCreatureScene):
self.play(morty.change, mode)
self.wait(2)
class Thumbnail(SearchSpacePerimeterVsArea):
CONFIG = {
"num_iterations" : 18,
"func" : plane_func_by_wind_spec(
(-3, -1.3, 2), (0.1, 0.2, 1), (2.8, -2, 1)
),
}
def construct(self):
self.force_skipping()
EquationSolver2d.construct(self)
self.revert_to_original_skipping_status()
mobjects = VGroup(*self.get_mobjects())
lines = VGroup()
rects = VGroup()
get_length = lambda mob : max(mob.get_width(), mob.get_height())
for mob in mobjects:
if mob.background_image_file is not None:
mob.set_stroke(width = 4*np.sqrt(get_length(mob)))
lines.add(mob)
elif isinstance(mob, Polygon):
rects.add(mob)
else:
self.remove(mob)
self.clear()
self.add(lines)