rotateBy method
(en)Rotates all vectors of this face based on the specified axis. This method allows you to rotate this face around any point.
(ja)この面の全てのベクトルを指定した軸をベースに回転させます。 このメソッドを用いると、任意の点を中心としてこの面を回転できます。
center
: center of rotation.parent
: parent obj.norAxis
: normalized rotate axis vector.radian
: radian = degree * pi / 180.
Implementation
Sp3dFace rotateBy(
Sp3dV3D center, Sp3dObj parent, Sp3dV3D norAxis, double radian) {
final Sp3dV3D diff = Sp3dV3D(0, 0, 0) - center;
move(parent, diff);
rotate(parent, norAxis, radian);
move(parent, diff * -1);
return this;
}