Function lsst::afw::geom::makeRadialTransform(std::vector<double> const&, std::vector<double> const&)

Function Documentation

std::shared_ptr<TransformPoint2ToPoint2> lsst::afw::geom::makeRadialTransform(std::vector<double> const &forwardCoeffs, std::vector<double> const &inverseCoeffs)

A purely radial polynomial distortion.

Similar to makeRadialTransform(std::vector<double> const &), but allows the user to provide an inverse.

Return

the radial distortion represented by coeffs. The Transform shall have an inverse, whose accuracy is determined by the relationship between forwardCoeffs and inverseCoeffs.

Parameters

  • forwardCoeffs: radial polynomial coefficients. May be an empty vector to represent the identity transformation; otherwise must have size > 1, coeffs[0] = 0, and coeffs[1] 0.

  • inverseCoeffs: coefficients for the inverse transform, as above. Does not need to have the same degree as forwardCoeffs, but either both must be empty or neither must be empty.

Exceptions

  • pex::exceptions::InvalidParameterError: Thrown if forwardCoeffs or inverseCoeffs does not have the required format. Provides basic exception safety.