to_shapefile() / reference.py::get_vertices() speed issue about flopy

[langevin-usgs]

I believe this was fixed on the develop branch, using the same approach that you are suggesting. Can you give that a try? We are working to get a release out sometime this week, if possible.

On develop branch in reference.py:

@property
def xgrid(self):
    if self._xgrid is None:
        self._set_xygrid()
    return self._xgrid

@property
def ygrid(self):
    if self._ygrid is None:
        self._set_xygrid()
    return self._ygrid

[ndeeds]

Well, that will teach me to check dev before spouting off. You are right, dev gives an identical result in terms of speed as my (actually, my colleague Marius') proposed change. At least it gave us an excuse to dig into the code a bit... =)