def mouse_down(self, ips, x, y, btn, **key):
z = ips.cur
frame = myvi.Frame3D.figure(IPy.curapp, title='3D Canvas')
manager = frame.viewer.canvas.manager
obj = manager.get_obj('cursor')
color = tuple(np.array(self.para['color']) / 255.0)
vts, fs, ns, cs = myvi.build_ball((y, z, x), self.para['r'], color)
if obj == None:
obj = manager.add_surf('cursor', vts, fs, ns, cs, real=False)
self.set_cursor(y, z, x)
self.pressed = True
def set_cursor(self, x, y, z):
if not self.pressed: return
frame = myvi.Frame3D.figure(IPy.curapp, title='3D Canvas')
manager = frame.viewer.canvas.manager
obj = manager.get_obj('cursor')
color = tuple(np.array(self.para['color']) / 255.0)
vts, fs, ns, cs = myvi.build_ball((y, x, z), self.para['r'], color)
obj.set_style(visible=True)
obj.buf[:, 0:3], obj.buf[:, 3:6], obj.buf[:, 6:9] = vts, ns, cs
obj.vbo.write(obj.buf.tobytes())
frame.viewer.Refresh(False)