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Plots with neon-glow in Matplotlib.
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| # -*- coding: utf-8 -*- | |
| """ | |
| Attempt of neon-glowing plots. | |
| @author: Nicolás Guarín-Zapata | |
| @date: September 2020 | |
| """ | |
| import numpy as np | |
| import matplotlib.pyplot as plt | |
| def neon_plot(x, y, ax=None): | |
| if ax is None: | |
| ax = plt.gca() | |
| line, = ax.plot(x, y, lw=1, zorder=6) | |
| for cont in range(6, 1, -1): | |
| ax.plot(x, y, lw=cont, color=line.get_color(), zorder=5, | |
| alpha=0.05) | |
| return ax | |
| # Styling | |
| repo = "https://raw.githubusercontent.com/nicoguaro/matplotlib_styles/master" | |
| style = repo + "/styles/neon.mplstyle" | |
| plt.style.use(style) | |
| # Plotting | |
| x = np.linspace(0, 4, 100) | |
| y = np.sin(np.pi*x + 1e-6)/(np.pi*x + 1e-6) | |
| plt.figure(figsize=(6, 4)) | |
| for cont in range(5): | |
| neon_plot(x, y/(cont + 1)) | |
| plt.xlabel("One axis") | |
| plt.ylabel("The other axis") | |
| plt.grid(zorder=3, alpha=0.2) | |
| plt.savefig("neon_example.png", dpi=300, bbox_inches="tight") | |
| plt.show() |
@mrmeloman, you can change the linestyle
def neon_plot(x, y, ax=None):
if ax is None:
ax = plt.gca()
line, = ax.plot(x, y, lw=1, zorder=6, ls="dashed")
for cont in range(6, 1, -1):
ax.plot(x, y, lw=cont, color=line.get_color(), zorder=5,
alpha=0.05, ls="dashed")
return ax
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Thank you, this looks really pretty!
Any ideas on how to make it support linestyles? I'm trying with dashed and it won't look good since the glow lines change lw, so dashed glow is misplaced relative to the main line. I tried to solve it myself, but I'm not very smart. This looks like it might help though, in case you'll want to look into it.