[data,freq,gname]=read_v2c('Z0_wls_vbar.v2c');
u = data(:,2);
v = data(:,4);
gname=blank(gname(1:length(gname)-1));
gridstruct=loadgrid(gname);
in=gridstruct.e;x=gridstruct.x;y=gridstruct.y;z=gridstruct.z;
hv=vecplot2(gridstruct,u,v,1.0,'m/s',175000.,-25000.);

