def ball_ring():
os = np.random.rand(30).reshape((-1,3))
rs = np.random.rand(10)/7
cs = (np.random.rand(10)*255).astype(np.uint8)
cs = myvi.linear_color('jet')[cs]/255
vts_b, fs_b, ns_b, cs_b = myvi.build_balls(list(os), list(rs), list(cs))
vts_l, fs_l, ns_l, cs_l = myvi.build_line(os[:,0], os[:,1], os[:,2], list(cs))
manager = myvi.Manager()
manager.add_surf('balls', vts_b, fs_b, ns_b, cs_b)
line = manager.add_surf('line', vts_l, fs_l, ns_l, cs_l)
line.set_style(mode='grid')
manager.show('Balls Ring Demo')
def line():
vts = np.array([(0,0,0),(1,1,0),(2,1,0),(1,0,0)], dtype=np.float32)
fs = np.array([(0,1,2),(1,2,3)], dtype=np.uint32)
ns = np.ones((4,3), dtype=np.float32)
n_mer, n_long = 6, 11
pi = np.pi
dphi = pi / 1000.0
phi = np.arange(0.0, 2 * pi + 0.5 * dphi, dphi)
mu = phi * n_mer
x = np.cos(mu) * (1 + np.cos(n_long * mu / n_mer) * 0.5)
y = np.sin(mu) * (1 + np.cos(n_long * mu / n_mer) * 0.5)
z = np.sin(n_long * mu / n_mer) * 0.5
vts, fs, ns, cs = myvi.build_line(x, y, z, (1, 0, 0))
cs[:] = myvi.auto_lookup(vts[:,2], myvi.linear_color('jet'))/255
manager = myvi.Manager()
obj = manager.add_surf('line', vts, fs, ns, cs)
obj.set_style(mode='grid')
manager.show('Line Rings')