NearestNDInterpolator¶
- class numeric.interpolate.NearestNDInterpolator(object)¶
NearestNDInterpolator(x, y) Nearest-neighbor interpolation in N dimensions.
- x(Npoints, Ndims) ndarray of floats
Data point coordinates.
- y(Npoints,) ndarray of float
Data values.
Examples:
def func(x,y,z): return 0.5*(3)**(1./2)-((x-0.5)**2+(y-0.5)**2+(z-0.5)**2)**(1./2) x = random.rand(1000) y = random.rand(1000) z = random.rand(1000) v = func(x,y,z) f = interpolate.NearestNDInterpolator([x,y,z], v) gx = linspace(x.min(), x.max(), 50) gy = linspace(y.min(), y.max(), 50) gz = linspace(z.min(), z.max(), 50) xx,yy,zz = meshgrid(gx, gy, gz) gv = f([xx,yy,zz]) levs = arange(0.1, 1.1, 0.1) scatter3(x, y, z, c=v, levels=levs) scatter3(xx, yy, zz, c=gv, s=2, levels=levs, alpha=0.5) colorbar()