The Hydrogel speedup update to dev (#171) has an implementation of hydrogel_gradient assumes volume elements, which means the hydrogel functional currently wouldn't work in 2D. The idea is to have a functional_elementgradient method that would pick out the correct (area vs volume etc) gradient method, making such applications grade-independent.
Note that the existing Hydrogel gradient on the 0.5.4 release should work just fine.
The Hydrogel speedup update to dev (#171) has an implementation of hydrogel_gradient assumes volume elements, which means the hydrogel functional currently wouldn't work in 2D. The idea is to have a functional_elementgradient method that would pick out the correct (area vs volume etc) gradient method, making such applications grade-independent.
Note that the existing Hydrogel gradient on the 0.5.4 release should work just fine.