function h=swan_scalarplot(xax,yax,X,ts)
% SWAN_SCALARPLOT  plots scalar from SWAN
%     Usage: h=swan_scalarplot(xax,yax,X,ts)
%     xax = xvector
%     yax = yvector
%      X  = scalar array
%     ts= title string
imagesc(xax, yax, X)
axis image
axis xy
title(ts)
cbar = colorbar('vert');
hold on
