LSSTApplications  20.0.0
LSSTDataManagementBasePackage
Parametric.cc
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1 // -*- lsst-c++ -*-
2 
3 /*
4  * LSST Data Management System
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25 
26 namespace lsst {
27 namespace afw {
28 namespace geom {
29 namespace ellipses {
30 
31 Parametric::Parametric(Ellipse const& ellipse) : _center(ellipse.getCenter()) {
32  double a, b, theta;
33  ellipse.getCore()._assignToAxes(a, b, theta);
34  double c = std::cos(theta);
35  double s = std::sin(theta);
36  _u = lsst::geom::Extent2D(a * c, a * s);
37  _v = lsst::geom::Extent2D(-b * s, b * c);
38 }
39 } // namespace ellipses
40 } // namespace geom
41 } // namespace afw
42 } // namespace lsst
lsst::afw::geom::ellipses::Parametric::Parametric
Parametric(Ellipse const &ellipse)
Definition: Parametric.cc:31
Parametric.h
ellipses
std::cos
T cos(T... args)
lsst::afw
Definition: imageAlgorithm.dox:1
lsst::afw::geom::ellipses::BaseCore::_assignToAxes
virtual void _assignToAxes(double &a, double &b, double &theta) const =0
Return the size of the bounding box for the ellipse core.
b
table::Key< int > b
Definition: TransmissionCurve.cc:467
lsst
A base class for image defects.
Definition: imageAlgorithm.dox:1
lsst::afw::geom::ellipses::Ellipse
An ellipse defined by an arbitrary BaseCore and a center point.
Definition: Ellipse.h:51
std::sin
T sin(T... args)
lsst::geom
Definition: geomOperators.dox:4
a
table::Key< int > a
Definition: TransmissionCurve.cc:466
lsst::geom::Extent2D
Extent< double, 2 > Extent2D
Definition: Extent.h:400
lsst::afw::geom::ellipses::Ellipse::getCore
BaseCore const & getCore() const
Return the ellipse core.
Definition: Ellipse.h:71