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LSSTDataManagementBasePackage
Basis2d.h
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1 // -*- LSST-C++ -*-
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22 #ifndef LSST_AFW_MATH_POLYNOMIALS_Basis2d_h_INCLUDED
23 #define LSST_AFW_MATH_POLYNOMIALS_Basis2d_h_INCLUDED
24 #ifdef DOXYGEN
25 
26 namespace lsst { namespace geom { namespace polynomials {
27 
36 template <typename Basis1d>
37 class Basis2d {
38 public:
39 
41  using Function = ...;
42 
44  using Scaled = ...;
45 
47  using Workspace = ...;
48 
50  std::size_t getOrder() const;
51 
53  std::size_t size() const;
54 
61  Scaled scaled(Scaling2d const & first) const;
62 
64  Workspace makeWorkspace() const;
65 
79  template <typename Vector>
80  double sumWith(geom::Point2D const & point, Vector const & coefficients) const;
81 
83  template <typename Vector>
84  double sumWith(geom::Point2D const & point, Vector const & coefficients, Workspace & workspace) const;
85 
93  template <typename Vector>
94  void fill(geom::Point2D const & point, Vector && basis) const;
95 
97  template <typename Vector>
98  void fill(geom::Point2D const & point, Vector && basis, Workspace & workspace) const;
99 
100 private:
101  Basis1d _basis1d;
102 };
103 
104 }}} // namespace lsst::geom::polynomials
105 
106 #endif // DOXYGEN
107 #endif // !LSST_AFW_MATH_POLYNOMIALS_Basis2d_h_INCLUDED
void fill(geom::Point2D const &point, Vector &&basis) const
Evaluate the basis at a given point.
... Function
A Function2d object that uses this basis.
Definition: Basis2d.h:41
Scaled scaled(Scaling2d const &first) const
Return a scaled basis that delegates to a copy of this.
Workspace makeWorkspace() const
Allocate workspace that can be passed to sumWith() and fill() to avoid repeated memory allocations...
std::size_t size() const
Return the number of basis functions.
A 2-d separable affine transform that can be used to map one interval to another. ...
Definition: Scaling2d.h:48
A base class for image defects.
Eigen::Matrix< Scalar, Eigen::Dynamic, 1 > Vector
Typedefs to be used for probability and parameter values.
Definition: common.h:46
std::size_t getOrder() const
Return the maximum order of the basis.
A basis interface for 2-d series expansions.
Definition: Basis2d.h:37
table::Key< table::Array< double > > basis
Definition: PsfexPsf.cc:361
double sumWith(geom::Point2D const &point, Vector const &coefficients) const
Evaluate a basis expansion with the given coefficients.
... Workspace
The type returned by makeWorkspace().
Definition: Basis2d.h:47
... Scaled
The type returned by scale().
Definition: Basis2d.h:44
A basis interface for 1-d series expansions.
Definition: Basis1d.h:36
ndarray::Array< double const, 2, 2 > coefficients