Class DoubleGaussianPsf

Inheritance Relationships

Base Types

Class Documentation

class DoubleGaussianPsf : public lsst::afw::table::io::PersistableFacade<DoubleGaussianPsf>, public lsst::meas::algorithms::KernelPsf

Represent a Psf as a circularly symmetrical double Gaussian.

Public Functions

DoubleGaussianPsf(int width, int height, double sigma1, double sigma2 = 0.0, double b = 0.0)

Constructor for a DoubleGaussianPsf

Parameters

  • [in] width: Number of columns in realisations of Psf

  • [in] height: Number of rows in realisations of Psf

  • [in] sigma1: Radius of inner Gaussian

  • [in] sigma2: Radius of outer Gaussian

  • [in] b: Ratio of Gaussian peak amplitudes: outer/inner

PTR(afw::detection::Psf) const

Polymorphic deep copy. Usually unnecessary, as Psfs are immutable.

PTR(afw::detection::Psf)

Return a clone with specified kernel dimensions.

double getSigma1() const

Return the radius of the inner Gaussian.

double getSigma2() const

Return the radius of the outer Gaussian.

double getB() const

Return the ratio of Gaussian peak amplitudes: outer/inner.

bool isPersistable() const

Whether this Psf is persistable (always true for DoubleGaussianPsf).

Public Members

int height const lsst::meas::algorithms::DoubleGaussianPsf::override

Protected Functions

std::string getPersistenceName() const
void write(OutputArchiveHandle &handle) const