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LSSTDataManagementBasePackage
Basis1d.h
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1 // -*- LSST-C++ -*-
2 /*
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5  * (https://www.lsst.org).
6  * See the COPYRIGHT file at the top-level directory of this distribution
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22 #ifndef LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
23 #define LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
24 #ifdef DOXYGEN
25 
26 namespace lsst { namespace geom { namespace polynomials {
27 
36 class Basis1d {
37 public:
38 
40  using Function = ...;
41 
43  using Scaled = ...;
44 
46  std::size_t getOrder() const;
47 
49  std::size_t size() const;
50 
57  Scaled scaled(Scaling1d const & scaling) const;
58 
83  template <typename Vector>
84  double sumWith(double x, Vector const & coefficients) const;
85 
100  template <typename Vector>
101  void fill(double x, Vector && basis) const;
102 
103 };
104 
105 }}} // namespace lsst::geom::polynomials
106 
107 #endif // DOXYGEN
108 #endif // !LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
std::size_t getOrder() const
Return the order of the basis.
std::size_t size() const
Return the number of elements in the basis.
... Function
A Function1d object that uses this basis.
Definition: Basis1d.h:40
... Scaled
The type returned by scale().
Definition: Basis1d.h:43
double sumWith(double x, Vector const &coefficients) const
Evaluate a basis expansion with the given coefficients.
A base class for image defects.
Definition: cameraGeom.dox:3
Eigen::Matrix< Scalar, Eigen::Dynamic, 1 > Vector
Typedefs to be used for probability and parameter values.
Definition: common.h:46
Scaled scaled(Scaling1d const &scaling) const
Return a scaled basis that delegates to a copy of this.
table::Key< table::Array< double > > basis
Definition: PsfexPsf.cc:361
double x
A 1-d affine transform that can be used to map one interval to another.
Definition: Scaling1d.h:46
void fill(double x, Vector &&basis) const
Evaluate the basis at a given point.
A basis interface for 1-d series expansions.
Definition: Basis1d.h:36
ndarray::Array< double const, 2, 2 > coefficients