Class lsst::afw::math::GaussianFunction2

template<typename ReturnT>
class GaussianFunction2 : public lsst::afw::math::Function2<ReturnT>

2-dimensional Gaussian

f(x,y) = A e^((-pos1^2 / 2 sigma1^2) - (pos2^2 / 2 sigma2^2)) where:

• A = 1 / (2 pi sigma1 sigma2)

• pos1 = cos(angle) x + sin(angle) y

• pos2 = -sin(angle) x + cos(angle) y coefficients c0 = sigma1, c1 = sigma2, c2 = angle

Note

if sigma1 > sigma2 then angle is the angle of the major axis