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Update of rate_functions (#1486)

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* Added a new image

* Updated the example and deleted the static image.

* Update rate_functions.py

* Update rate_functions.py

* Apply suggestions from code review

Co-authored-by: Jan-Hendrik Müller <44469195+kolibril13@users.noreply.github.com>
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Nikhil Garuda 2021-05-12 18:47:06 +05:30 • committed by GitHub
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manim/utils/rate_functions.py
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@ -2,8 +2,46 @@
Please find a standard list at https://easings.net/. Here is a picture
for the non-standard ones
.. image:: /_static/non_standard_rate_funcs.png
:alt: Non-standard rate functions
.. manim:: RateFuncExample
:save_last_frame:
class RateFuncExample(Scene):
def construct(self):
x = VGroup()
for k, v in rate_functions.__dict__.items():
if "function" in str(v):
if (
not k.startswith("__")
and not k.startswith("sqrt")
and not k.startswith("bezier")
):
try:
rate_func = v
plot = (
ParametricFunction(
lambda x: [x, rate_func(x), 0],
t_min=0,
t_max=1,
use_smoothing=False,
color=YELLOW,
)
.stretch_to_fit_width(1.5)
.stretch_to_fit_height(1)
)
plot_bg = SurroundingRectangle(plot).set_color(WHITE)
plot_title = (
Text(rate_func.__name__, weight=BOLD)
.scale(0.5)
.next_to(plot_bg, UP, buff=0.1)
)
x.add(VGroup(plot_bg, plot, plot_title))
except: # because functions `not_quite_there`, `function squish_rate_func` are not working.
pass
x.arrange_in_grid(cols=8)
x.height = config.frame_height
x.width = config.frame_width
x.move_to(ORIGIN).scale(0.95)
self.add(x)
There are primarily 3 kinds of standard easing functions: