The function is unique to the 1p2c model is not actively in use (functions in the spatial params always return false).
It is still possible to globally use two point gradients with the box method by setting the property ImplicitUseTwoPointFluxes.



git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@14442 2fb0f335-1f38-0410-981e-8018bf24f1b0