LSSTApplications  20.0.0
LSSTDataManagementBasePackage
AffineTransform.cc
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21 
22 #include <iomanip>
23 
24 #include "Eigen/LU"
25 
28 
29 namespace lsst {
30 namespace geom {
31 
34  r << (*this)[XX], (*this)[YX], (*this)[XY], (*this)[YY], (*this)[X], (*this)[Y];
35  return r;
36 }
37 
39  (*this)[XX] = vector[XX];
40  (*this)[XY] = vector[XY];
41  (*this)[X] = vector[X];
42  (*this)[YX] = vector[YX];
43  (*this)[YY] = vector[YY];
44  (*this)[Y] = vector[Y];
45 }
46 
48  Matrix r;
49  r << (*this)[XX], (*this)[XY], (*this)[X], (*this)[YX], (*this)[YY], (*this)[Y], 0.0, 0.0, 1.0;
50  return r;
51 }
52 
55  return AffineTransform(inv, -inv(getTranslation()));
56 }
57 
59  TransformDerivativeMatrix r = TransformDerivativeMatrix::Zero();
60  r.block<2, 4>(0, 0) = getLinear().dTransform(input);
61  r(0, X) = 1.0;
62  r(1, Y) = 1.0;
63  return r;
64 }
65 
67  TransformDerivativeMatrix r = TransformDerivativeMatrix::Zero();
68  r.block<2, 4>(0, 0) = getLinear().dTransform(input);
69  return r;
70 }
71 
73  std::ios::fmtflags flags = os.flags();
74  AffineTransform::Matrix const &matrix = transform.getMatrix();
75  int prec = os.precision(7);
76  os.setf(std::ios::fixed);
77  os << "AffineTransform([(" << std::setw(10) << matrix(0, 0) << "," << std::setw(10) << matrix(0, 1) << ","
78  << std::setw(10) << matrix(0, 2) << "),\n";
79  os << " (" << std::setw(10) << matrix(1, 0) << "," << std::setw(10) << matrix(1, 1) << ","
80  << std::setw(10) << matrix(1, 2) << "),\n";
81  os << " (" << std::setw(10) << matrix(2, 0) << "," << std::setw(10) << matrix(2, 1) << ","
82  << std::setw(10) << matrix(2, 2) << ")])";
83  os.precision(prec);
84  os.flags(flags);
85  return os;
86 }
87 
89  Point2D const &q1, Point2D const &q2, Point2D const &q3) {
90  Eigen::Matrix3d mp;
91  mp << p1.getX(), p2.getX(), p3.getX(), p1.getY(), p2.getY(), p3.getY(), 1.0, 1.0, 1.0;
92 
93  Eigen::Matrix3d mq;
94  mq << q1.getX(), q2.getX(), q3.getX(), q1.getY(), q2.getY(), q3.getY(), 1.0, 1.0, 1.0;
95 
96  Eigen::Matrix3d m = mq * mp.inverse();
97  return AffineTransform(m);
98 }
99 
100 } // namespace geom
101 } // namespace lsst
lsst::geom::AffineTransform::dTransform
TransformDerivativeMatrix dTransform(Point2D const &input) const noexcept
Take the derivative of (*this)(input) w.r.t the transform elements.
Definition: AffineTransform.cc:58
lsst::geom::LinearTransform
A 2D linear coordinate transformation.
Definition: LinearTransform.h:69
AffineTransform.h
lsst::geom::AffineTransform::XY
@ XY
Definition: AffineTransform.h:77
lsst::geom::AffineTransform::inverted
AffineTransform const inverted() const
Return the inverse transform.
Definition: AffineTransform.cc:53
lsst::geom::AffineTransform::getTranslation
Extent2D const & getTranslation() const noexcept
Definition: AffineTransform.h:152
lsst::afw::image::X
@ X
Definition: ImageUtils.h:36
lsst::geom::AffineTransform::YX
@ YX
Definition: AffineTransform.h:77
lsst::geom::AffineTransform
An affine coordinate transformation consisting of a linear transformation and an offset.
Definition: AffineTransform.h:75
lsst::geom::AffineTransform::YY
@ YY
Definition: AffineTransform.h:77
lsst::geom::AffineTransform::Matrix
Eigen::Matrix3d Matrix
Definition: AffineTransform.h:79
std::ostream
STL class.
lsst::geom::AffineTransform::getLinear
LinearTransform const & getLinear() const noexcept
Definition: AffineTransform.h:155
lsst::geom::AffineTransform::XX
@ XX
Definition: AffineTransform.h:77
std::ostream::setf
T setf(T... args)
lsst::afw::image::Y
@ Y
Definition: ImageUtils.h:36
std::ostream::flags
T flags(T... args)
lsst::geom::AffineTransform::ParameterVector
Eigen::Matrix< double, 6, 1 > ParameterVector
Definition: AffineTransform.h:80
lsst
A base class for image defects.
Definition: imageAlgorithm.dox:1
lsst::geom::operator<<
std::ostream & operator<<(std::ostream &os, lsst::geom::AffineTransform const &transform)
Definition: AffineTransform.cc:72
lsst::geom::AffineTransform::setParameterVector
void setParameterVector(ParameterVector const &vector) noexcept
Set the transform matrix elements from a parameter vector.
Definition: AffineTransform.cc:38
lsst::geom::AffineTransform::AffineTransform
AffineTransform() noexcept
Construct an empty (identity) AffineTransform.
Definition: AffineTransform.h:84
lsst::geom
Definition: geomOperators.dox:4
os
std::ostream * os
Definition: Schema.cc:746
Runtime.h
lsst::geom::AffineTransform::getParameterVector
ParameterVector const getParameterVector() const noexcept
Return the transform matrix elements as a parameter vector.
Definition: AffineTransform.cc:32
lsst::geom::AffineTransform::Y
@ Y
Definition: AffineTransform.h:77
lsst::geom::Point< double, 2 >
transform
table::Key< int > transform
Definition: TransformMap.cc:299
lsst::geom::AffineTransform::X
@ X
Definition: AffineTransform.h:77
lsst::geom::AffineTransform::TransformDerivativeMatrix
Eigen::Matrix< double, 2, 6 > TransformDerivativeMatrix
Definition: AffineTransform.h:81
std::setw
T setw(T... args)
lsst::geom::makeAffineTransformFromTriple
AffineTransform makeAffineTransformFromTriple(Point2D const &p1, Point2D const &p2, Point2D const &p3, Point2D const &q1, Point2D const &q2, Point2D const &q3)
Definition: AffineTransform.cc:88
lsst::geom::Extent< double, 2 >
lsst::geom::AffineTransform::getMatrix
Matrix const getMatrix() const noexcept
Return the transform as a full 3x3 matrix.
Definition: AffineTransform.cc:47
std::ostream::precision
T precision(T... args)
m
int m
Definition: SpanSet.cc:49