Python create a grid of points

import numpy as np
# define the lower and upper limits for x and y
minX, maxX, minY, maxY = 0., 20000., 10000., 50000.
# create one-dimensional arrays for x and y
x = np.linspace(minX, maxX, (maxX-minX)/2000.+1)
y = np.linspace(minY, maxY, (maxY-minY)/2000.+1)
# create the mesh based on these arrays
X, Y = np.meshgrid(x, y)

Source: stackoverflow.com

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