kidyco/python_playground.qmd at main · IMRCLab/kidyco · GitHub

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---
format:
  html:
    code-fold: true
jupyter: python3
---

# Python Playground

```{python}
#| label: fig-polar
#| fig-cap: "A line plot on a polar axis"

import numpy as np
import matplotlib.pyplot as plt

r = np.arange(0, 2, 0.01)
theta = 2 * np.pi * r
fig, ax = plt.subplots(
  subplot_kw = {'projection': 'polar'}
)
ax.plot(theta, r)
ax.set_rticks([0.5, 1, 1.5, 2])
ax.grid(True)
plt.show()
```

## MeshCat

```{python}
#| output: false
#| echo: false
import meshcat
from meshcat.geometry import Box
from meshcat.animation import Animation
import meshcat.transformations as tf

vis = meshcat.Visualizer()
```

```{python}
vis["box1"].set_object(Box([0.1, 0.2, 0.3]))

anim = Animation()

with anim.at_frame(vis, 0) as frame:
    frame["box1"].set_transform(tf.translation_matrix([0, 0, 0]))
with anim.at_frame(vis, 30) as frame:
    frame["box1"].set_transform(tf.translation_matrix([0, 1, 0]))

vis.set_animation(anim)
vis.render_static()
```

```{python}
#| echo: false
#| output: asis

import sympy as sp
import numpy as np

# load our custom module
import sys
from pathlib import Path
module_path = str(Path.cwd() / "code")
if module_path not in sys.path:
    sys.path.append(module_path)
from sympy_helper import *

t = sp.Symbol("t")

printer = MyLatexPrinter(t)

x = sp.Function("x")(t)

printer.show(x)
printer.show(x**2)

printer.show(sp.diff(x,t,1))
printer.show(sp.diff(x,t,2))
```