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Transformer.h
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24 
25 #ifndef LSST_AFW_GEOM_ELLIPSES_Transformer_h_INCLUDED
26 #define LSST_AFW_GEOM_ELLIPSES_Transformer_h_INCLUDED
27 
37 
38 namespace lsst { namespace afw { namespace geom { namespace ellipses {
39 
48 public:
49 
51  typedef Eigen::Matrix3d DerivativeMatrix;
52 
54  typedef Eigen::Matrix<double,3,4> TransformDerivativeMatrix;
55 
57  Transformer(BaseCore & input_, LinearTransform const & transform_) :
58  input(input_), transform(transform_) {}
59 
61  BaseCore::Ptr copy() const;
62 
64  void inPlace();
65 
66  void apply(BaseCore & result) const;
67 
69  DerivativeMatrix d() const;
70 
73 
76 
77 };
78 
87 public:
88 
90  typedef Eigen::Matrix<double,5,5> DerivativeMatrix;
91 
93  typedef Eigen::Matrix<double,5,6> TransformDerivativeMatrix;
94 
96  Transformer(Ellipse & input_, AffineTransform const & transform_) :
97  input(input_), transform(transform_) {}
98 
100  Ellipse::Ptr copy() const;
101 
103  void inPlace();
104 
105  void apply(Ellipse & other) const;
106 
108  DerivativeMatrix d() const;
109 
112 
115 };
116 
118  return BaseCore::Transformer(*this,transform);
119 }
120 
121 inline BaseCore::Transformer const BaseCore::transform(LinearTransform const & transform) const {
122  return BaseCore::Transformer(const_cast<BaseCore &>(*this),transform);
123 }
124 
126  return Ellipse::Transformer(*this,transform);
127 }
128 
129 inline Ellipse::Transformer const Ellipse::transform(AffineTransform const & transform) const {
130  return Ellipse::Transformer(const_cast<Ellipse &>(*this),transform);
131 }
132 
133 inline Ellipse::Ellipse(Ellipse::Transformer const & other) :
134  _core(other.input.getCore().transform(other.transform.getLinear()).copy()),
135  _center(other.transform(other.input.getCenter()))
136 {}
137 
138 }}}} // namespace lsst::afw::geom::ellipses
139 
140 #endif // !LSST_AFW_GEOM_ELLIPSES_Transformer_h_INCLUDED
boost::shared_ptr< BaseCore > Ptr
Definition: BaseCore.h:60
BaseCore::Ptr copy() const
Return a new transformed ellipse core.
A temporary-only expression object for ellipse core transformations.
Definition: Transformer.h:47
boost::shared_ptr< Ellipse > Ptr
Definition: Ellipse.h:60
DerivativeMatrix d() const
Return the derivative of transformed core with respect to input core.
SelectEigenView< T >::Type copy(Eigen::EigenBase< T > const &other)
Copy an arbitrary Eigen expression into a new EigenView.
Definition: eigen.h:390
Transformer(Ellipse &input_, AffineTransform const &transform_)
Standard constructor.
Definition: Transformer.h:96
TransformDerivativeMatrix dTransform() const
Return the derivative of transform output ellipse with respect to transform parameters.
Transformer transform(AffineTransform const &transform)
Definition: Transformer.h:125
Eigen::Matrix< double, 5, 6 > TransformDerivativeMatrix
Matrix type for derivative with respect to transform parameters.
Definition: Transformer.h:93
DerivativeMatrix d() const
Return the derivative of transform output ellipse with respect to input ellipse.
void inPlace()
Transform the ellipse core in-place.
Transformer(BaseCore &input_, LinearTransform const &transform_)
Standard constructor.
Definition: Transformer.h:57
A 2D linear coordinate transformation.
void apply(BaseCore &result) const
BaseCore & input
input core to be transformed
Definition: Transformer.h:74
Ellipse & input
input ellipse to be transformed
Definition: Transformer.h:113
An affine coordinate transformation consisting of a linear transformation and an offset.
An ellipse defined by an arbitrary BaseCore and a center point.
Definition: Ellipse.h:50
Ellipse(BaseCore const &core, Point2D const &center=Point2D())
Definition: Ellipse.h:167
void inPlace()
Transform the ellipse in-place.
Eigen::Matrix3d DerivativeMatrix
Matrix type for derivative with respect to input ellipse parameters.
Definition: Transformer.h:51
TransformDerivativeMatrix dTransform() const
Return the derivative of transformed core with respect to transform parameters.
Eigen::Matrix< double, 3, 4 > TransformDerivativeMatrix
Matrix type for derivative with respect to transform parameters.
Definition: Transformer.h:54
LinearTransform const & transform
transform object
Definition: Transformer.h:75
Ellipse::Ptr copy() const
Return a new transformed ellipse.
Forward declarations, typedefs, and definitions for Ellipse.
Transformer transform(LinearTransform const &transform)
Definition: Transformer.h:117
A base class for parametrizations of the &quot;core&quot; of an ellipse - the ellipticity and size...
Definition: BaseCore.h:54
A temporary-only expression object for ellipse transformations.
Definition: Transformer.h:86
Eigen::Matrix< double, 5, 5 > DerivativeMatrix
Matrix type for derivative with respect to input ellipse parameters.
Definition: Transformer.h:90
AffineTransform const & transform
transform object
Definition: Transformer.h:114