https://github.com/xzackli/matplotlib_curve_maker

sometimes you just gotta plot some stuff, and then get a by-eye quick and dirty spline fit
https://github.com/xzackli/matplotlib_curve_maker

Last synced: 9 months ago
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sometimes you just gotta plot some stuff, and then get a by-eye quick and dirty spline fit

• Host: GitHub
• URL: https://github.com/xzackli/matplotlib_curve_maker
• Owner: xzackli
• Created: 2017-07-28T23:03:03.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2017-07-28T23:40:33.000Z (over 8 years ago)
• Last Synced: 2025-03-08T05:46:19.939Z (10 months ago)
• Language: Python
• Homepage:
• Size: 805 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          
# matplotlib_curve_maker

> 70\% done, not totally functional yet

This is pretty much for personal use for when I'm thinking about simple numerical models. The dream is to be plotting something, i.e.

```python

import numpy as np

import matplotlib.pyplot as plot

x = np.linspace(-np.pi, np.pi)

y = np.sin(x)

plt.plot(x,y)

```

![plot of a sine curve](readme_images/just_a_plot.png)

You run this through your model. Suddenly, you get an idea.

> What does your model say, if this function starts declining on the right side?

So you import this package, run some stuff.

```

import matplotlib_curve_maker

ax = plt.gca()

points, = ax.plot([], [], 'o', c=color_cycle[1], markersize=6) # empty points

line, = ax.plot([], [], '-' , c=color_cycle[1] ) # empty line

linebuilder = LineBuilder(ax, points, line)

```

A window pops up. You have some keyboard controls.

* `i` to add a point where the mouse is.

* `d` to delete the point under the mouse.

* Click and drag points to move them around.

![spline in there](readme_images/spline_in_there.png)

Then you press `spacebar` and the suddenly, `linebuilder.get_spline()` returns an anonymous function that is the blue spline you see above!