Black lines missing in the box holding the axes of a MATLAB plot

Question

When plotting on a figure in MATLAB, I have noticed that parts of the black box that holds the axes are missing (the left and bottom one):

             

I have tried issuing:

box off
box on

commands with no success. Do you know what I can do to get the corresponding black lines on the axes?

Note:

I am using the OpenGL renderer:

set(0,'DefaultFigureRenderer','opengl');

Answer 1

It looks like you have known issues with OpenGL renderer:

• Why do the axes box and tick marks disappear when I use transparency in a plot in MATLAB 7.5 (R2007b)?
• Why does using PATCH with transparency cause the axes to disappear in MATLAB?
• Why does the ALPHA commmand make the top and right borders of my figure disappear in MATLAB R2011a (7.12)?

Let us know what you did exactly to create this figure.

Answer 2

Try increasing the line width of the axes a bit:

set(gca, 'LineWidth', 1.2)

Also, switching from hardware (default) to software rendering may solve the problem:

opengl software

However, there may be drawbacks. Increasing the line width, e.g., changes all axes lines, including ticks.

Answer 3

Use the following line of code to make the black lines appear

set(gca,'Layer','top')