MATLAB: Export setup to pdf

export setuppdf

I've been using export setup to save triplot of grid mesh .fig to .pdf. The .pdf works like .fig, which can keep the details for zoom in. However, when I plotted a grid mesh with much more triangular cells, the .pdf has been compressed as .jpeg. Any tips to keep the export setup work without compression? Thanks!

Best Answer

When the figure's property 'RendererMode' is set to 'auto', many 3D objects enable the OpenGL renderer. This renderer cannot create a vector output, such that you get an pixel image. Solution: Set the renderer manually to 'Painters':
figure('Renderer', 'Painters');  % At the creation
Or before the export:
set(gcf, 'Renderer', 'Painters');
Note: This problem has been discussed repeatedly in this forum, such that searching for "pdf pixel" would be faster than waiting for someone, who answers this again.
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