LSST Applications  21.0.0-147-g0e635eb1+1acddb5be5,22.0.0+052faf71bd,22.0.0+1ea9a8b2b2,22.0.0+6312710a6c,22.0.0+729191ecac,22.0.0+7589c3a021,22.0.0+9f079a9461,22.0.1-1-g7d6de66+b8044ec9de,22.0.1-1-g87000a6+536b1ee016,22.0.1-1-g8e32f31+6312710a6c,22.0.1-10-gd060f87+016f7cdc03,22.0.1-12-g9c3108e+df145f6f68,22.0.1-16-g314fa6d+c825727ab8,22.0.1-19-g93a5c75+d23f2fb6d8,22.0.1-19-gb93eaa13+aab3ef7709,22.0.1-2-g8ef0a89+b8044ec9de,22.0.1-2-g92698f7+9f079a9461,22.0.1-2-ga9b0f51+052faf71bd,22.0.1-2-gac51dbf+052faf71bd,22.0.1-2-gb66926d+6312710a6c,22.0.1-2-gcb770ba+09e3807989,22.0.1-20-g32debb5+b8044ec9de,22.0.1-23-gc2439a9a+fb0756638e,22.0.1-3-g496fd5d+09117f784f,22.0.1-3-g59f966b+1e6ba2c031,22.0.1-3-g849a1b8+f8b568069f,22.0.1-3-gaaec9c0+c5c846a8b1,22.0.1-32-g5ddfab5d3+60ce4897b0,22.0.1-4-g037fbe1+64e601228d,22.0.1-4-g8623105+b8044ec9de,22.0.1-5-g096abc9+d18c45d440,22.0.1-5-g15c806e+57f5c03693,22.0.1-7-gba73697+57f5c03693,master-g6e05de7fdc+c1283a92b8,master-g72cdda8301+729191ecac,w.2021.39
LSST Data Management Base Package
polynomialUtils.h
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1 // -*- LSST-C++ -*-
2 
3 /*
4  * LSST Data Management System
5  * Copyright 2016 LSST/AURA
6  *
7  * This product includes software developed by the
8  * LSST Project (http://www.lsst.org/).
9  *
10  * This program is free software: you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
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24 
25 #ifndef LSST_MEAS_ASTROM_DETAIL_polynomialUtils_h_INCLUDED
26 #define LSST_MEAS_ASTROM_DETAIL_polynomialUtils_h_INCLUDED
27 
28 #include "Eigen/Core"
29 
30 namespace lsst {
31 namespace meas {
32 namespace astrom {
33 namespace detail {
34 
45 inline int computePackedOffset(int order) { return (order * (order + 1)) / 2; }
46 
50 inline int computePackedSize(int order) { return computePackedOffset(order + 1); }
51 
58 void computePowers(Eigen::VectorXd& r, double x);
59 
66 Eigen::VectorXd computePowers(double x, int n);
67 
85 public:
90  explicit BinomialMatrix(int const nMax) { extend(nMax); }
91 
101  double operator()(int n, int k) const { return getMatrix()(n, k); }
102 
103 private:
104  static void extend(int const n);
105 
106  static Eigen::MatrixXd& getMatrix();
107 };
108 
109 } // namespace detail
110 } // namespace astrom
111 } // namespace meas
112 } // namespace lsst
113 
114 #endif // !LSST_MEAS_ASTROM_DETAIL_polynomialUtils_h_INCLUDED
double x
A class that computes binomial coefficients up to a certain power.
BinomialMatrix(int const nMax)
Construct an object that can compute binomial coefficients with up to and including the given value.
double operator()(int n, int k) const
Return the binomial coefficient.
int computePackedOffset(int order)
Compute the index of the first coefficient with the given order in a packed 2-d polynomial coefficien...
int computePackedSize(int order)
Compute this size of a packed 2-d polynomial coefficient array.
void computePowers(Eigen::VectorXd &r, double x)
Fill an array with integer powers of x, so .
A base class for image defects.
table::Key< int > order