Labels of contour3 plot hide behind surface plot

Hi, i got some issues with labeling the contourlines on a surface plot. Plotting the attached data leads to a nice surf plot with contour lines. But unfortunately the labels of the contour3 plot hide behind the surface plot. Setting 'FaceAlpha' of the surf plot to 0 shows the labels. But I would like to see the surface and all labels of the contour3 plot. What am i missing? Can someone please help!

Thanks a lot!

if true

    % load test data
    load('PlotData.mat');

    % new figure & axes
    f = figure;
    ax = axes(f);
    set(f,'Renderer','openGL');
    hold(ax,'on');

    % surf plot
    surfPlot = surf(ax,X,Y,Z);

    % surf options
    surfPlot.FaceColor = 'interp';
    surfPlot.LineStyle = 'none';
    surfPlot.FaceAlpha = 1;

    % Zmax for Zlim (inc 0.1)
    maxZint = max(max(Z))*10;
    maxZ = ceil(maxZint)/10;

    % contour3 plot
    [C,h] = contour3(ax,X,Y,Z,[0:0.1:maxZ 0:0.1:maxZ],'k','ShowText','on','LineWidth',1);

    % labels on contour3
    clabel(C,h,'FontSize',11,'Color',[0 0 0]);

    % view
    view(ax,[-37.5 30]);

end

Answer 1

[Jan Scheuermann]

I got the perfect answer from Ol1v3r in the german gomatlab forum. just wanted to share with you ...

if true
  ax.SortMethod = 'childorder';
end