I understand that while saving a figure as an SVG file, the aspect ratio is 1:1 after using “axis equal”. But the ratio changes after using “ax2.InnerPosition”.
When you use “axis equal” in MATLAB, it is ensured that one unit on the x-axis is the same length as one unit on the y-axis. To achieve this, MATLAB automatically adjusts the display area of the axes. As a result, the “InnerPosition” property (in normalized units) may not appear square, even though the axes look correct visually. This is why your SVG file shows equal axis lengths, but the “InnerPosition” values are not equal.
Because “InnerPosition” property does not show the true pixel size after `axis equal` is used, placing annotations using normalized axes coordinates may not work as expected.
To accurately position annotations after using `axis equal`, you can get the axes position in pixel units after the plot is rendered.
Here is an implementation of the same, in the given code snippet:
drawnow; % Ensures the graphics are updated
set(ax2, 'Units', 'pixels');
ax_pos = get(ax2, 'Position'); % [left bottom width height] in pixels
