Class lsst::afw::math::DeltaFunctionKernel

class DeltaFunctionKernel : public lsst::afw::table::io::PersistableFacade<DeltaFunctionKernel>, public lsst::afw::math::Kernel

A kernel that has only one non-zero pixel (of value 1)

It has no adjustable parameters and so cannot be spatially varying.