function PS = plotstyles_vectorxy(PS,A)
%PLOTSTYLES_VECTORXY Obtain plot styles for selected vector(xy) object.

%----- LGPL --------------------------------------------------------------------
%                                                                               
%   Copyright (C) 2011-2019 Stichting Deltares.                                     
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%   This library is free software; you can redistribute it and/or                
%   modify it under the terms of the GNU Lesser General Public                   
%   License as published by the Free Software Foundation version 2.1.                         
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%   but WITHOUT ANY WARRANTY; without even the implied warranty of               
%   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU            
%   Lesser General Public License for more details.                              
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%   $HeadURL$
%   $Id$

if isempty(A.Grid)
    error('TODO: no grid')
else
    vDims = A.Value(1).Dimensions;
    gDims = A.Grid.SpatialDimensions;
    %
    [timdep,nval,stagger,PlotDim] = extract_dataprops(A,A.Value(1),vDims,gDims);
    %
    if nval==1
        switch PlotDim
            case '2DH'
                switch stagger
                    case 'Faces2D'
                        % TODO: velocity profiles in 2DH (hull of vectors)
                        PS = addPlotStyle(PS,'vectors in cell centre',timdep,@plot_vectors);
                        F = qp_unitconversion(A.Unit,'m/s');
                        if ~ischar(F)
                            PS = addPlotStyle(PS,'moving vectors',true,@dummyPlotter);
                        end
                    case 'Edges2D'
                        PS = addPlotStyle(PS,'staggered normal vectors',timdep,@dummyPlotter);
                        PS = addPlotStyle(PS,'vectors in cell centre',timdep,@plot_vectors);
                        F = qp_unitconversion(A.Unit,'m/s');
                        if ~ischar(F)
                            PS = addPlotStyle(PS,'moving vectors',true,@dummyPlotter);
                        end
                end
        end
    end
end
