def create_from_point_vector(normal_vector: Vector, point: Point):
d = normal_vector.dot(Vector.convert_point(point))
plane_params = [
normal_vector.x, normal_vector.y, normal_vector.z,
mpmath.fneg(d)
]
return Plane(plane_params)
def create_from_3points(points):
vec_a = Vector.create_from_points(points[0], points[1])
vec_b = Vector.create_from_points(points[0], points[2])
normal_vector = vec_a.cross(vec_b)
d = normal_vector.dot(Vector.convert_point(points[2]))
plane_params = [
normal_vector.a, normal_vector.b, normal_vector.c,
mpmath.fneg(d)
]
return Plane(plane_params)