def direction(self, value): self._direction = umath.norm_vec(umath.nparray(value))
def vertex(self, value): self._vertex = umath.nparray(value)
def point(self, value): self._point = umath.nparray(value)
def __init__(self, point, normal): self.point = umath.nparray(point) self.normal = umath.norm_vec(umath.nparray(normal))