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Incremental progress on WindingNumber (equation solver 2d)

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This commit is contained in:
Sridhar Ramesh 2018-01-19 16:53:05 -08:00
parent 123bae00a6
commit 6e293782ff
1 changed files with 13 additions and 3 deletions
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16
active_projects/WindingNumber.py
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@ -646,6 +646,9 @@ empty_animation = Animation(Mobject())
def EmptyAnimation(): def EmptyAnimation():
return empty_animation return empty_animation
# TODO: Perhaps restructure this to avoid using AnimationGroup/UnsyncedParallels, and instead
# use lists of animations or lists or other such data, to be merged and processed into parallel
# animations later
class EquationSolver2d(Scene): class EquationSolver2d(Scene):
CONFIG = { CONFIG = {
"func" : plane_poly_with_roots((1, 2), (-1, 3)), "func" : plane_poly_with_roots((1, 2), (-1, 3)),
@ -653,7 +656,7 @@ class EquationSolver2d(Scene):
"initial_upper_x" : 5.1, "initial_upper_x" : 5.1,
"initial_lower_y" : -3.1, "initial_lower_y" : -3.1,
"initial_upper_y" : 3.1, "initial_upper_y" : 3.1,
"num_iterations" : 10, "num_iterations" : 5,
"num_checkpoints" : 10, "num_checkpoints" : 10,
# TODO: Consider adding a "find_all_roots" flag, which could be turned off # TODO: Consider adding a "find_all_roots" flag, which could be turned off
# to only explore one of the two candidate subrectangles when both are viable # to only explore one of the two candidate subrectangles when both are viable
@ -679,7 +682,10 @@ class EquationSolver2d(Scene):
color = RED) color = RED)
thin_line = line.copy() thin_line = line.copy()
thin_line.set_stroke(width = 1) thin_line.set_stroke(width = 1)
anim = Succession(ShowCreation, line)#, Transform, line, thin_line) anim = Succession(
ShowCreation, line,
Transform, line, thin_line
)
return (anim, rebased_winder(1)) return (anim, rebased_winder(1))
wind_so_far = 0 wind_so_far = 0
@ -720,7 +726,11 @@ class EquationSolver2d(Scene):
mid_line_coords = rect.split_line_on_dim(dim_to_split) mid_line_coords = rect.split_line_on_dim(dim_to_split)
mid_line_points = [num_plane.coords_to_point(x, y) for (x, y) in mid_line_coords] mid_line_points = [num_plane.coords_to_point(x, y) for (x, y) in mid_line_coords]
mid_line = DashedLine(*mid_line_points) mid_line = DashedLine(*mid_line_points)
return Succession(anim, ShowCreation(mid_line), AnimationGroup(*sub_anims)) return Succession(anim,
ShowCreation(mid_line),
FadeOut(mid_line),
UnsyncedParallel(*sub_anims)
)
lower_x = self.initial_lower_x lower_x = self.initial_lower_x
upper_x = self.initial_upper_x upper_x = self.initial_upper_x