Contour labels SOMETIMES disappear when plotting contour over pcolor

Hello,

I am plotting black, labeled contours over a pcolor plot. It works fine for some data, but for other data the labels disappear or partially disapear. I cannot find a reason based on the data itself. Any help would be appreciated. Code block below.

Kerry

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 figure
pcolor(HX,HY,crb_3d(:,:,4));
colormap(jet);
colorbar; shading interp; daspect([1 1 1]);
caxis([-100 100])
hold on
contour(HX,HY,crb_3d(:,:,3),'k','LevelList',[1 5 10 50 100],'ShowText','on');
title('Azimuth CRB minus Elevation CRB','FontWeight','bold')
axis off

Answer 1

[Chad Greene]

This is sometimes a result of the figure renderer acting funny. Try cycling through the different renderers to see if any of these solutions work

set(gcf,'rend','painters')

If that doesn't work,

set(gcf,'rend','opengl')

And if that doesn't work,

set(gcf,'rend','zbuffer')

And if that still doesn't work, force the contours on top of everything by using contour3 with a Z variable made up of ones(size(Hx)).