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Support retrieving linear & affine matrix, translation vector, and affine transform from math::orthographic

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This commit is contained in:
Nikita Lisitsa 2026-07-21 13:21:24 +03:00
parent 0236fc97b7
commit 11d96829b6
1 changed files with 32 additions and 0 deletions
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32
libs/math/include/psemek/math/orthographic.hpp
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@ -5,6 +5,7 @@
#include <psemek/math/box.hpp>
#include <psemek/math/matrix.hpp>
#include <psemek/math/homogeneous.hpp>
#include <psemek/math/affine_transform.hpp>
namespace psemek::math
{
@ -14,6 +15,8 @@ namespace psemek::math
{
using vector_type = math::vector<T, D>;
using point_type = math::point<T, D>;
using affine_matrix_type = math::matrix<T, D, D + 1>;
using linear_matrix_type = math::matrix<T, D, D>;
using homogeneous_matrix_type = math::matrix<T, D + 1, D + 1>;
using box_type = math::box<T, D>;
@ -26,8 +29,13 @@ namespace psemek::math
vector_type operator() (vector_type v) const;
point_type operator() (point_type p) const;
affine_matrix_type affine_matrix() const;
linear_matrix_type linear_matrix() const;
vector_type translation_vector() const;
homogeneous_matrix_type homogeneous_matrix() const;
affine_transform<T, D, D> transform() const;
orthographic inverse() const;
private:
@ -76,6 +84,24 @@ namespace psemek::math
return as_point(homogeneous_matrix() * homogeneous(p));
}
template <typename T, std::size_t D>
matrix<T, D, D + 1> orthographic<T, D>::affine_matrix() const
{
return submatrix<0, 0, D, D + 1>(homogeneous_matrix());
}
template <typename T, std::size_t D>
matrix<T, D, D> orthographic<T, D>::linear_matrix() const
{
return submatrix<0, 0, D, D>(homogeneous_matrix());
}
template <typename T, std::size_t D>
vector<T, D> orthographic<T, D>::translation_vector() const
{
return column(affine_matrix(), D);
}
template <typename T, std::size_t D>
matrix<T, D + 1, D + 1> orthographic<T, D>::homogeneous_matrix() const
{
@ -92,6 +118,12 @@ namespace psemek::math
return m;
}
template <typename T, std::size_t D>
affine_transform<T, D, D> orthographic<T, D>::transform() const
{
return {affine_matrix()};
}
template <typename T, std::size_t D>
orthographic<T, D> orthographic<T, D>::inverse() const
{