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Asked: 2026-05-31T09:04:40+00:00

When the size of a plotted sparsity matrix is increased, the title (if typeset

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When the size of a plotted sparsity matrix is increased, the title (if typeset by TeX) is anomalously blurred. What is the basis of this effect and how can it be avoided?

Example:

spy(magic(2)); title('Text','interpreter','latex','FontSize',20);
spy(magic(200)); title('Text','interpreter','latex','FontSize',20);

enter image description here
enter image description here

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1 Answer

  1. Editorial Team

    Related to (and actually the same issue as in) How to prevent LATEX-labels in MATLAB GUI to become blurry?

    The solution applies. After inputting:

    spy(magic(200)); title('Text','interpreter','latex','FontSize',20);

    I get:

    enter image description here

    The command get(gcf, 'renderer') returns ans = zbuffer. Afterwards, I input set(gcf, 'renderer', 'painters') which immediately makes the result be:

    enter image description here

    For reference, this is Matlab r2011b.

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