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MultiShapeletFunction.h
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1// -*- LSST-C++ -*-
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24
25#ifndef LSST_AFW_MATH_SHAPELETS_MULTISHAPELETFUNCTION_H
26#define LSST_AFW_MATH_SHAPELETS_MULTISHAPELETFUNCTION_H
27
29#include <vector>
30
31namespace lsst { namespace shapelet {
32
33class MultiShapeletFunctionEvaluator;
34
39public:
40
43
45
47
49
50 ComponentList & getComponents() { return _components; }
51
52 ComponentList const & getComponents() const { return _components; }
53
55 void normalize(double value=1.0);
56
58 void shiftInPlace(geom::Extent2D const & offset);
59
61 void transformInPlace(geom::AffineTransform const & transform);
62
65
68
70 Evaluator evaluate() const;
71
72 MultiShapeletFunction() : _components() {}
73
75
76 explicit MultiShapeletFunction(ComponentList const & components) : _components(components) {}
77
78 explicit MultiShapeletFunction(ShapeletFunction const & component) : _components(1, component) {}
79
80private:
81 ComponentList _components;
82};
83
94public:
95
98
100 double operator()(double x, double y) const {
101 return this->operator()(geom::Point2D(x, y));
102 }
103
105 double operator()(geom::Point2D const & point) const;
106
108 double operator()(geom::Extent2D const & point) const;
109
111 ndarray::Array<double,1,1> operator()(
112 ndarray::Array<double const,1> const & x,
113 ndarray::Array<double const,1> const & y
114 ) const;
115
118 ndarray::Array<double,2,1> const & array,
119 geom::Point2I const & xy0 = geom::Point2I()
120 ) const;
121
124 addToImage(image.getArray(), image.getXY0());
125 }
126
128 double integrate() const;
129
132
134 void update(MultiShapeletFunction const & function);
135
138
139private:
142 ComponentList _components;
143};
144
148
149}} // namespace lsst::shapelet
150
151#endif // !defined(LSST_AFW_MATH_SHAPELETS_MULTISHAPELETFUNCTION_H)
table::Key< table::Array< int > > components
int y
Definition SpanSet.cc:48
An ellipse defined by an arbitrary BaseCore and a center point.
Definition Ellipse.h:51
A class to represent a 2-dimensional array of pixels.
Definition Statistics.h:40
An affine coordinate transformation consisting of a linear transformation and an offset.
ndarray::Array< double, 1, 1 > operator()(ndarray::Array< double const, 1 > const &x, ndarray::Array< double const, 1 > const &y) const
Evaluate at the given points, returning a newly-allocated array.
double operator()(geom::Point2D const &point) const
Evaluate at the given point.
std::shared_ptr< MultiShapeletFunctionEvaluator > Ptr
afw::geom::ellipses::Ellipse computeMoments() const
Return the unweighted dipole and quadrupole moments of the function as an ellipse.
double integrate() const
Compute the definite integral or integral moments.
void addToImage(afw::image::Image< double > &image) const
Evaluate the function on the given image.
void addToImage(ndarray::Array< double, 2, 1 > const &array, geom::Point2I const &xy0=geom::Point2I()) const
Add the function to the given image-like array.
double operator()(double x, double y) const
Evaluate at the given point.
void update(MultiShapeletFunction const &function)
Update the evaluator from the given function.
MultiShapeletFunctionEvaluator(MultiShapeletFunction const &function)
Construct an evaluator for the given function.
std::shared_ptr< MultiShapeletFunctionEvaluator const > ConstPtr
double operator()(geom::Extent2D const &point) const
Evaluate at the given point.
A multi-scale shapelet function.
void shiftInPlace(geom::Extent2D const &offset)
Shift the shapelet function by shifting the ellipse of each component.
MultiShapeletFunction(MultiShapeletFunction const &other)=default
void transformInPlace(geom::AffineTransform const &transform)
Transform the shapelet function by transforming the ellipse of each component.
ComponentList const & getComponents() const
MultiShapeletFunction convolve(ShapeletFunction const &other) const
Convolve the multi-shapelet function.
void normalize(double value=1.0)
Normalize the integral of the shapelet function to the given value.
MultiShapeletFunctionEvaluator Evaluator
MultiShapeletFunction convolve(MultiShapeletFunction const &other) const
Convolve the multi-shapelet function.
MultiShapeletFunction(ShapeletFunction const &component)
MultiShapeletFunction(ComponentList const &components)
std::shared_ptr< MultiShapeletFunction const > ConstPtr
Evaluator evaluate() const
Construct a helper object that can efficiently evaluate the function.
std::shared_ptr< MultiShapeletFunction > Ptr
A 2-d function defined by an expansion onto a Gauss-Laguerre or Gauss-Hermite basis.