My Customized Pattern Bracelet

thingiverse

# 3D Surface Representation ```python import matplotlib.pyplot as plt from mpl_toolkits.mplot3d import Axes3D import numpy as np class Surface3D: def __init__(self, vertices, edges, inner_diameter): self.vertices = vertices self.edges = edges self.inner_diameter = inner_diameter self.generate_coordinates() def generate_coordinates(self): n_edges = len(self.edges) self.edge_radius = self.inner_diameter / 2.0 + 0.5 phi, theta = np.linspace(0, np.pi, n_edges + 1), np.linspace( -np.pi, np.pi, n_edges + 1) z_grid = (np.cos(phi[:-1]) * np.cos(theta)) self.XYZ[:, :, :] = [ (z_grid[:, None] * (self.edge_radius - (theta + phi) ** 2)) for theta in theta[None, :]] def plot(self): fig = plt.figure() ax = fig.add_subplot(111, projection='3d') ax.plot_surface( self.XYZ[0, :, :], self.XYZ[1, :, :], self.XYZ[2, :, :], color='g', rstride=2, cstride=2) plt.show() vertices = [ [-0.04794520547945205,-0.023472602739726015,-0.01438306024687502,-0.00621350965463801], [-0.04481473014483015,-0.025490095189808913,-0.013384503124408907,-0.005193502637039912]] edges = [ [9, 14],[17,10],[22,6],[26,7],[35,13],[45,5],[51,21], [56,8],[61,15],[65,24],[69,25],[75,31],[79,30],[85,16], [92,4],[97,20],[101,11],[106,23],[112,18],[117,12],[122,19]] inner_diameter = 51 surface3d = Surface3D(vertices, edges, inner_diameter) surface3d.plot() ```