mirror of
https://github.com/3b1b/manim.git
synced 2025-05-14 11:38:45 +00:00
744e695340
* Comment tweak * Directly print traceback Since the shell.showtraceback is giving some issues * Make InteracrtiveSceneEmbed into a class This way it can keep track of it's internal shell; use of get_ipython has a finicky relationship with reloading. * Move remaining checkpoint_paste logic into scene_embed.py This involved making a few context managers for Scene: temp_record, temp_skip, temp_progress_bar, which seem useful in and of themselves. * Change null key to be the empty string * Ensure temporary svg paths for Text are deleted * Remove unused dict_ops.py functions * Remove break_into_partial_movies from file_writer configuration * Rewrite guarantee_existence using Path * Clean up SceneFileWriter It had a number of vestigial functions no longer used, and some setup that could be made more organized. * Remove --save_pngs CLI arg (which did nothing) * Add --subdivide CLI arg * Remove add_extension_if_not_present * Remove get_sorted_integer_files * Have find_file return Path * Minor clean up * Clean up num_tex_symbols * Fix find_file * Minor cleanup for extract_scene.py * Add preview_frame_while_skipping option to scene config * Use shell.showtraceback function * Move keybindings to config, instead of in-place constants * Replace DEGREES -> DEG
101 lines
2.3 KiB
Python
101 lines
2.3 KiB
Python
from __future__ import annotations
|
|
|
|
from functools import lru_cache
|
|
import hashlib
|
|
import inspect
|
|
import math
|
|
|
|
import numpy as np
|
|
|
|
from typing import TYPE_CHECKING
|
|
if TYPE_CHECKING:
|
|
from typing import Callable, TypeVar, Iterable
|
|
from manimlib.typing import FloatArray
|
|
|
|
Scalable = TypeVar("Scalable", float, FloatArray)
|
|
|
|
|
|
|
|
def sigmoid(x: float | FloatArray):
|
|
return 1.0 / (1 + np.exp(-x))
|
|
|
|
|
|
@lru_cache(maxsize=10)
|
|
def choose(n: int, k: int) -> int:
|
|
return math.comb(n, k)
|
|
|
|
|
|
def gen_choose(n: int, r: int) -> int:
|
|
return int(np.prod(range(n, n - r, -1)) / math.factorial(r))
|
|
|
|
|
|
def get_num_args(function: Callable) -> int:
|
|
return function.__code__.co_argcount
|
|
|
|
|
|
def get_parameters(function: Callable) -> Iterable[str]:
|
|
return inspect.signature(function).parameters.keys()
|
|
|
|
|
|
def clip(a: float, min_a: float, max_a: float) -> float:
|
|
if a < min_a:
|
|
return min_a
|
|
elif a > max_a:
|
|
return max_a
|
|
return a
|
|
|
|
|
|
def arr_clip(arr: np.ndarray, min_a: float, max_a: float) -> np.ndarray:
|
|
arr[arr < min_a] = min_a
|
|
arr[arr > max_a] = max_a
|
|
return arr
|
|
|
|
|
|
def fdiv(a: Scalable, b: Scalable, zero_over_zero_value: Scalable | None = None) -> Scalable:
|
|
"""
|
|
Less heavyweight name for np.true_divide, enabling
|
|
default behavior for 0/0
|
|
"""
|
|
if zero_over_zero_value is not None:
|
|
out = np.full_like(a, zero_over_zero_value)
|
|
where = np.logical_or(a != 0, b != 0)
|
|
else:
|
|
out = None
|
|
where = True
|
|
|
|
return np.true_divide(a, b, out=out, where=where)
|
|
|
|
|
|
def binary_search(
|
|
function: Callable[[float], float],
|
|
target: float,
|
|
lower_bound: float,
|
|
upper_bound: float,
|
|
tolerance:float = 1e-4
|
|
) -> float | None:
|
|
lh = lower_bound
|
|
rh = upper_bound
|
|
mh = (lh + rh) / 2
|
|
while abs(rh - lh) > tolerance:
|
|
lx, mx, rx = [function(h) for h in (lh, mh, rh)]
|
|
if lx == target:
|
|
return lx
|
|
if rx == target:
|
|
return rx
|
|
|
|
if lx <= target and rx >= target:
|
|
if mx > target:
|
|
rh = mh
|
|
else:
|
|
lh = mh
|
|
elif lx > target and rx < target:
|
|
lh, rh = rh, lh
|
|
else:
|
|
return None
|
|
mh = (lh + rh) / 2
|
|
return mh
|
|
|
|
|
|
def hash_string(string: str, n_bytes=16) -> str:
|
|
hasher = hashlib.sha256(string.encode())
|
|
return hasher.hexdigest()[:n_bytes]
|