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- from scipy.interpolate import griddata
- import numpy as np
- import matplotlib.pyplot as plt
- data = np.loadtxt('test.asc')
- ra = data[:,0]
- dec = data[:,1]
- Xpos = data[:,2]
- Ypos = data[:,3]
- xi = np.linspace(Xpos.min(), Xpos.max(), 1000)
- yi = np.linspace(Ypos.min(), Ypos.max(), 1000)
- xi, yi = np.meshgrid(xi, yi, copy=False)
- ra_int = griddata(data[:,2:4], ra, (xi.flatten(), yi.flatten()),
- method='cubic')
- dec_int = griddata(data[:,2:4], dec, (xi.flatten(), yi.flatten()),
- method='cubic')
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