Question

I am using the following code to find the position of the xlabel in a figure of matlab.

xlabel('X');
get(get(gca,'XLabel'),'Position');

which gives me some coordinates (0.4981 -0.0669 1.0001). I think that coordinate is just the position of the top-left point of the label. So how do I found the bound for the label if I know the fontsize only?

Answer 1

Text objects have an “Extent” property:

Extent

Position and size of text. A four-element vector that defines the size
and position of the text string:

[left,bottom,width,height]

If the Units property is data (the default), left and bottom are the
x- and y-coordinates of the lower left corner of the text Extent.

For all other values of Units, left and bottom are the distance from
the lower left corner of the axes Position rectangle to the lower left
corner of the text Extent. width and height are the dimensions of the
Extent rectangle. All measurements are in units specified by the Units
property.