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gridvec.py
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gridvec.py
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import numpy as np
def gridvec(xmin,xmax,numx,ymin,ymax):
""" This function inputs specifications for creating a grid
of uniformly spaced points, reshaped into column vectors
of the x- and y-coordinates. Note that dx = dy."""
xvec0 = np.linspace(xmin,xmax,numx)
dx = xvec0[1] - xvec0[0]
yvec0 = np.arange(ymin, ymax+dx, dx)
X, Y = np.meshgrid(xvec0,yvec0)
a,b = X.shape
xvec = np.reshape(X,(a*b,1))
yvec = np.reshape(Y,(a*b,1))
numy = len(yvec0)
return xvec, yvec, numy, X, Y
#def gridvec(xmin,xmax,numx,ymin,ymax,returnXY=False):
# """ This function inputs specifications for creating a grid
# of uniformly spaced points, reshaped into column vectors
# of the x- and y-coordinates. Note that dx = dy."""
#
# xvec0 = np.linspace(xmin,xmax,numx)
# dx = xvec0[1] - xvec0[0]
# yvec0 = np.arange(ymin, ymax+dx, dx)
#
# X, Y = np.meshgrid(xvec0,yvec0)
# a,b = X.shape
# xvec = np.reshape(X,(a*b,1))
# yvec = np.reshape(Y,(a*b,1))
#
# numy = len(yvec0)
#
# if returnXY:
# return xvec, yvec, numy, X, Y
# else:
# return xvec, yvec, numy