function [bpxv,wfxv,bpyv,wfyv] = grule2dgen (nquadx,nquady)
%usage:  [bpxv,wfxv,bpyv,wfyv] = grule2dgen (nquadx,nquady);
[bpxv,wfxv]=grule(nquadx);
[bpyv,wfyv]=grule(nquady);