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/**
BSD 3-Clause License
This file is part of the Basalt project.
https://gitlab.com/VladyslavUsenko/basalt-headers.git
Copyright (c) 2019, Vladyslav Usenko and Nikolaus Demmel.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@file
@brief Static asserts for checking projection and unprojection types
*/
#pragma once
#include <Eigen/Dense>
#include <string_view>
namespace basalt {
/// @brief Helper struct to evaluate lazy Eigen expressions or const reference
/// them if they are Eigen::Matrix or Eigen::Map types
template <class Derived>
struct EvalOrReference {
using Type = typename Eigen::internal::eval<Derived>::type;
};
/// @brief Helper struct to evaluate lazy Eigen expressions or const reference
/// them if they are Eigen::Matrix or Eigen::Map types
template <typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows,
int _MaxCols, int MapOptions, typename StrideType>
struct EvalOrReference<Eigen::Map<
Eigen::Matrix<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols>,
MapOptions, StrideType>> {
using Type = const Eigen::MatrixBase<Eigen::Map<
Eigen::Matrix<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols>,
MapOptions, StrideType>> &;
};
/// @brief Helper function to check that 3D points are 3 or 4 dimensional and
/// the Jacobians have the appropriate shape in the project function
template <class DerivedPoint3D, class DerivedPoint2D, class DerivedJ3DPtr,
class DerivedJparamPtr, int N>
constexpr inline void checkProjectionDerivedTypes() {
EIGEN_STATIC_ASSERT(DerivedPoint3D::IsVectorAtCompileTime &&
(DerivedPoint3D::SizeAtCompileTime == 3 ||
DerivedPoint3D::SizeAtCompileTime == 4),
THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE)
EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(DerivedPoint2D, 2);
if constexpr (!std::is_same_v<DerivedJ3DPtr, std::nullptr_t>) {
static_assert(std::is_pointer_v<DerivedJ3DPtr>);
using DerivedJ3D = typename std::remove_pointer<DerivedJ3DPtr>::type;
EIGEN_STATIC_ASSERT(DerivedJ3D::RowsAtCompileTime == 2 &&
int(DerivedJ3D::ColsAtCompileTime) ==
int(DerivedPoint3D::SizeAtCompileTime),
THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE)
}
if constexpr (!std::is_same_v<DerivedJparamPtr, std::nullptr_t>) {
static_assert(std::is_pointer_v<DerivedJparamPtr>);
using DerivedJparam = typename std::remove_pointer<DerivedJparamPtr>::type;
EIGEN_STATIC_ASSERT_MATRIX_SPECIFIC_SIZE(DerivedJparam, 2, N);
}
}
/// @brief Helper function to check that 3D points are 3 or 4 dimensional and
/// the Jacobians have the appropriate shape in the unproject function
template <class DerivedPoint2D, class DerivedPoint3D, class DerivedJ2DPtr,
class DerivedJparamPtr, int N>
constexpr inline void checkUnprojectionDerivedTypes() {
EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(DerivedPoint2D, 2);
EIGEN_STATIC_ASSERT(DerivedPoint3D::IsVectorAtCompileTime &&
(DerivedPoint3D::SizeAtCompileTime == 3 ||
DerivedPoint3D::SizeAtCompileTime == 4),
THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE)
if constexpr (!std::is_same_v<DerivedJ2DPtr, std::nullptr_t>) {
static_assert(std::is_pointer_v<DerivedJ2DPtr>);
using DerivedJ2D = typename std::remove_pointer<DerivedJ2DPtr>::type;
EIGEN_STATIC_ASSERT(DerivedJ2D::ColsAtCompileTime == 2 &&
int(DerivedJ2D::RowsAtCompileTime) ==
int(DerivedPoint3D::SizeAtCompileTime),
THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE)
}
if constexpr (!std::is_same_v<DerivedJparamPtr, std::nullptr_t>) {
static_assert(std::is_pointer_v<DerivedJparamPtr>);
using DerivedJparam = typename std::remove_pointer<DerivedJparamPtr>::type;
EIGEN_STATIC_ASSERT(DerivedJparam::ColsAtCompileTime == N &&
int(DerivedJparam::RowsAtCompileTime) ==
int(DerivedPoint3D::SizeAtCompileTime),
THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE)
}
}
} // namespace basalt