Exemple #1
0
func (t *Triangle) ToPlane() *Plane {
	v1 := gnr.VectorDifference(t.Points[1], t.Points[0])
	v2 := gnr.VectorDifference(t.Points[2], t.Points[0])
	normal := gnr.VectorCross(v1, v2)
	return &Plane{
		Normal:   normal,
		Distance: -gnr.VectorProduct(normal, t.Points[0]),
	}
}
Exemple #2
0
func (t *Triangle) Area() float64 {
	v1 := gnr.VectorDifference(t.Points[1], t.Points[0])
	v2 := gnr.VectorDifference(t.Points[2], t.Points[0])
	return gnr.VectorCross(v1, v2).Magnitude() / 2
}