// checks whether this vector is parallel to the parameter vector
public Boolean IsParallelTo(Vector2D Vec)
{
Vector2D Vec1 = UnitVector();
Vector2D Vec2 = Vec.UnitVector();
if ((Vec1.X == Vec2.X && Vec1.Y == Vec2.Y) || (Vec1.X == -Vec2.X && Vec1.Y == -Vec2.Y)) {
return true;
} else {
return false;
}
}
// checks whether this vector is codirectional to the parameter vector
public Boolean IsCodirectionalTo(Vector2D Vec)
{
Vector2D Vec1 = UnitVector();
Vector2D Vec2 = Vec.UnitVector();
if (Vec1.X == Vec2.X && Vec1.Y == Vec2.Y) {
return true;
} else {
return false;
}
}