49 lines
935 B
Markdown
49 lines
935 B
Markdown
# Meshgrid
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{:.no_toc}
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<nav markdown="1" class="toc-class">
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* TOC
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{:toc}
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</nav>
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## The goal
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Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
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## [numpy.meshgrid](https://numpy.org/doc/stable/reference/generated/numpy.meshgrid.html)
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```python
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numpy.meshgrid(*xi, copy=True, sparse=False, indexing='xy')
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```
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> Return a list of coordinate matrices from coordinate vectors.
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>
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> Make N-D coordinate arrays for vectorized evaluations of N-D scalar/vector fields over N-D grids, given one-dimensional coordinate arrays x1, x2,…, xn.
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```python
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import numpy as np
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import matplotlib.pyplot as plt
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x = np.linspace(0, 1, 100)
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y = np.linspace(0, 1, 100)
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xv, yv = np.meshgrid(x, y)
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plt.imshow(xv, cmap="hot")
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plt.xlabel("x axis")
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plt.ylabel("y axis")
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plt.title("xv")
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plt.show()
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plt.imshow(yv, cmap="hot")
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plt.xlabel("x axis")
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plt.ylabel("y axis")
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plt.title("yv")
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plt.show()
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```
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