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How to plot a line (polygonal chain) with matplotlib with minimal smoothing?
To plot a line (polygonal chain) with matplotlib with minimal smoothing, we can take the following steps −
- Set the figure size and adjust the padding between and around the subplots.
- Initalize a variable, N, to get the number of data points.
- Create x and y data points using numpy.
- Get 1-D monotonic cubic interpolation, using pchip() method.
- Plot (x, interp(x)) and (x, y) data points using numpy.
- To display the figure, use show() method.
Example
import numpy as np from scipy.interpolate import pchip import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True N = 50 x = np.linspace(-10, 10, N) y = np.sin(x) interp = pchip(x, y) plt.plot(x, interp(x), color='red') plt.plot(x, y, 'bo') plt.show()
Output
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