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Rework example "Scatter Star Poly" to "Marker examples" #16102
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,40 +1,48 @@ | ||
| """ | ||
| ================= | ||
| Scatter Star Poly | ||
| ================= | ||
| =============== | ||
| Marker examples | ||
| =============== | ||
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| Create multiple scatter plots with different | ||
| star symbols. | ||
| Example with different ways to specify markers. | ||
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| For a list of all markers see also the `matplotlib.markers` documentation. | ||
| """ | ||
| import numpy as np | ||
| import matplotlib.pyplot as plt | ||
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| # Fixing random state for reproducibility | ||
| np.random.seed(19680801) | ||
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| x = np.random.rand(10) | ||
| y = np.random.rand(10) | ||
| z = np.sqrt(x**2 + y**2) | ||
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| plt.subplot(321) | ||
| plt.scatter(x, y, s=80, c=z, marker=">") | ||
| fig, axs = plt.subplots(2, 3, sharex=True, sharey=True) | ||
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| # marker symbol | ||
| axs[0, 0].scatter(x, y, s=80, c=z, marker=">") | ||
| axs[0, 0].set_title("marker='>'") | ||
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| plt.subplot(322) | ||
| plt.scatter(x, y, s=80, c=z, marker=(5, 0)) | ||
| # marker from TeX | ||
| axs[0, 1].scatter(x, y, s=80, c=z, marker=r'$\alpha$') | ||
| axs[0, 1].set_title(r"marker=r'\$\alpha\$'") | ||
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| # marker from path | ||
| verts = np.array([[-1, -1], [1, -1], [1, 1], [-1, -1]]) | ||
| plt.subplot(323) | ||
| plt.scatter(x, y, s=80, c=z, marker=verts) | ||
| axs[0, 2].scatter(x, y, s=80, c=z, marker=verts) | ||
| axs[0, 2].set_title("marker=verts") | ||
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| plt.subplot(324) | ||
| plt.scatter(x, y, s=80, c=z, marker=(5, 1)) | ||
| # regular polygon marker | ||
| axs[1, 0].scatter(x, y, s=80, c=z, marker=(5, 0)) | ||
| axs[1, 0].set_title("marker=(5, 0)") | ||
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| plt.subplot(325) | ||
| plt.scatter(x, y, s=80, c=z, marker='+') | ||
| # regular star marker | ||
| axs[1, 1].scatter(x, y, s=80, c=z, marker=(5, 1)) | ||
| axs[1, 1].set_title("marker=(5, 1)") | ||
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| plt.subplot(326) | ||
| plt.scatter(x, y, s=80, c=z, marker=(5, 2)) | ||
| # regular asterisk marker | ||
| axs[1, 2].scatter(x, y, s=80, c=z, marker=(5, 2)) | ||
| axs[1, 2].set_title("marker=(5, 2)") | ||
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| plt.tight_layout() | ||
| plt.show() | ||
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I'm not a big fan of this title: it doesn't summarizes what the example showcases in particular compared to all of the other examples on markers.
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I agree that it's not very instructive. But I didn't find a better name. OTOH, the example itself doesn't add much compared to the maker reference and module docs. I was about to delete it but decided to keep it as a usage example.
If you can think of a better name, proposals are always welcome.
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I'd be in favor of removing it :)