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Allow bound graphs to track discontinuities

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This commit is contained in:
Grant Sanderson 2022-11-18 09:08:30 -08:00
parent d8e4c1d698
commit 004b7427f5
1 changed files with 22 additions and 8 deletions
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30
manimlib/mobject/coordinate_systems.py
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@ -4,8 +4,9 @@ from abc import ABC, abstractmethod
import numbers
import numpy as np
import itertools as it
from manimlib.constants import BLACK, BLUE, BLUE_D, GREEN, GREY_A, WHITE, RED
from manimlib.constants import BLACK, BLUE, BLUE_D, BLUE_E, GREEN, GREY_A, WHITE, RED
from manimlib.constants import DEGREES, PI
from manimlib.constants import DL, UL, DOWN, DR, LEFT, ORIGIN, OUT, RIGHT, UP
from manimlib.constants import FRAME_HEIGHT, FRAME_WIDTH
@ -18,14 +19,16 @@ from manimlib.mobject.geometry import Line
from manimlib.mobject.geometry import Rectangle
from manimlib.mobject.number_line import NumberLine
from manimlib.mobject.svg.tex_mobject import Tex
from manimlib.mobject.types.vectorized_mobject import VGroup
from manimlib.mobject.types.dot_cloud import DotCloud
from manimlib.mobject.types.surface import ParametricSurface
from manimlib.mobject.types.vectorized_mobject import VGroup
from manimlib.utils.config_ops import digest_config
from manimlib.utils.config_ops import merge_dicts_recursively
from manimlib.utils.simple_functions import binary_search
from manimlib.utils.space_ops import angle_of_vector
from manimlib.utils.space_ops import get_norm
from manimlib.utils.space_ops import rotate_vector
from manimlib.utils.space_ops import normalize
from typing import TYPE_CHECKING
@ -234,16 +237,27 @@ class CoordinateSystem(ABC):
"""
return self.input_to_graph_point(x, graph)
def bind_graph_to_func(self, graph, func, jagged=False):
def bind_graph_to_func(self, graph, func, jagged=False, get_discontinuities=None):
"""
Use for graphing functions which might change over time, or change with
conditions
"""
graph.x_values = [self.x_axis.p2n(p) for p in graph.get_points()]
graph.add_updater(lambda g: g.set_points([self.c2p(x, func(x)) for x in g.x_values]))
if jagged:
graph.add_updater(lambda g: g.make_jagged())
else:
x_values = [self.x_axis.p2n(p) for p in graph.get_points()]
def get_x_values():
if get_discontinuities:
ds = get_discontinuities()
ep = 1e-6
added_xs = it.chain(*((d - ep, d + ep) for d in ds))
return sorted([*x_values, *added_xs])[:len(x_values)]
else:
return x_values
graph.add_updater(lambda g: g.set_points_as_corners([
self.c2p(x, func(x))
for x in get_x_values()
]))
if not jagged:
graph.add_updater(lambda g: g.make_approximately_smooth())
return graph