10#ifndef EIGEN_SCALING_H
11#define EIGEN_SCALING_H
32template<
typename _Scalar>
37 typedef _Scalar Scalar;
48 explicit inline UniformScaling(
const Scalar& s) : m_factor(s) {}
50 inline const Scalar& factor()
const {
return m_factor; }
51 inline Scalar& factor() {
return m_factor; }
54 inline UniformScaling operator* (
const UniformScaling& other)
const
55 {
return UniformScaling(m_factor * other.factor()); }
59 inline Transform<Scalar,Dim,Affine> operator* (
const Translation<Scalar,Dim>& t)
const;
62 template<
int Dim,
int Mode,
int Options>
63 inline Transform<Scalar,Dim,(int(Mode)==int(
Isometry)?
Affine:Mode)>
operator* (
const Transform<Scalar,Dim, Mode, Options>& t)
const
65 Transform<Scalar,Dim,(int(Mode)==int(
Isometry)?
Affine:Mode)> res = t;
66 res.prescale(factor());
72 template<
typename Derived>
73 inline typename internal::plain_matrix_type<Derived>::type operator* (
const MatrixBase<Derived>& other)
const
74 {
return other * m_factor; }
76 template<
typename Derived,
int Dim>
77 inline Matrix<Scalar,Dim,Dim> operator*(
const RotationBase<Derived,Dim>& r)
const
78 {
return r.toRotationMatrix() * m_factor; }
81 inline UniformScaling
inverse()
const
82 {
return UniformScaling(Scalar(1)/m_factor); }
89 template<
typename NewScalarType>
90 inline UniformScaling<NewScalarType> cast()
const
91 {
return UniformScaling<NewScalarType>(NewScalarType(m_factor)); }
94 template<
typename OtherScalarType>
95 inline explicit UniformScaling(
const UniformScaling<OtherScalarType>& other)
96 { m_factor = Scalar(other.factor()); }
102 bool isApprox(
const UniformScaling& other,
const typename NumTraits<Scalar>::Real& prec = NumTraits<Scalar>::dummy_precision())
const
103 {
return internal::isApprox(m_factor, other.factor(), prec); }
115template<
typename Derived,
typename Scalar>
116EIGEN_EXPR_BINARYOP_SCALAR_RETURN_TYPE(Derived,Scalar,product)
117operator*(
const MatrixBase<Derived>& matrix,
const UniformScaling<Scalar>& s)
118{
return matrix.derived() * s.factor(); }
121inline UniformScaling<float>
Scaling(
float s) {
return UniformScaling<float>(s); }
123inline UniformScaling<double>
Scaling(
double s) {
return UniformScaling<double>(s); }
125template<
typename RealScalar>
126inline UniformScaling<std::complex<RealScalar> >
Scaling(
const std::complex<RealScalar>& s)
127{
return UniformScaling<std::complex<RealScalar> >(s); }
130template<
typename Scalar>
134template<
typename Scalar>
141template<
typename Derived>
155template<
typename Scalar>
162 res.
linear().diagonal().fill(factor());
164 res(Dim,Dim) = Scalar(1);
Represents a diagonal matrix with its storage.
Definition: DiagonalMatrix.h:118
Expression of a diagonal matrix.
Definition: DiagonalMatrix.h:247
Base class for all dense matrices, vectors, and expressions.
Definition: MatrixBase.h:50
const DiagonalWrapper< const Derived > asDiagonal() const
Definition: DiagonalMatrix.h:277
Derived & setZero(Index size)
Definition: CwiseNullaryOp.h:515
Represents a translation transformation.
Definition: Translation.h:31
Represents a generic uniform scaling transformation.
@ Affine
Definition: Constants.h:450
@ Isometry
Definition: Constants.h:447
Namespace containing all symbols from the Eigen library.
Definition: Core:287
const Eigen::CwiseUnaryOp< Eigen::internal::scalar_inverse_op< typename Derived::Scalar >, const Derived > inverse(const Eigen::ArrayBase< Derived > &x)