spkit.geometry.get_ellipsoid

spkit.geometry.get_ellipsoid(n1=100, n2=100, rx=1, ry=2, rz=1, phi_rang=[0, 6.283185307179586], theta_rang=[0, 3.141592653589793])

Get a ellipsoid

Parameters:

n1,n2= (int, int)

rx: radius-x

ry: radius-y

rz: radius-z

phi_rang: phi range

theta_rang: theta range

Returns:

V: (n,3)

• 3D points

See also

get_sphare, get_circle, get_circular_grid, get_square, get_square_grid

Examples

#sp.geometry.get_ellipsoid
import numpy as np
import matplotlib.pyplot as plt
import spkit as sp

V = sp.geometry.get_ellipsoid(n1=50, n2=50, rx=1, ry=2, rz=1,)
V += 0.01*np.random.randn(V.shape[0],V.shape[1])

X = sp.create_signal_1d(V.shape[0],bipolar=False,sg_winlen=21,sg_polyorder=2,seed=1)

fig, ax = plt.subplots(subplot_kw={"projection": "3d"},figsize=(5,6))
ax.scatter3D(V[:,0], V[:,1], V[:,2], c=X, cmap='jet',s=10)
ax.axis('off')
ax.view_init(elev=60, azim=45, roll=15)
ax.set_xlim([-1,1])
ax.set_ylim([-2,2])
ax.set_zlim([-1,1])
ax.set_title('ellipsoid')