Hi M. Levi,
It is my understanding that you are trying to adjust the amount of tick length extension in a MATLAB plot. In this case you can use the 'TickLength' property of the axes. The property 'TickLength' is used for defining the tick mark length of the axes, specified as a two-element vector of the form [2Dlength 3Dlength] with a default value of [0.01 0.025]. The first element is the tick mark length in 2-D views and the second element is the tick mark length in 3-D views. Specify the values in units normalized relative to the longest of the visible x-axis, y-axis, or z-axis lines. Adjusting the tick mark length is illustrated in the following example.
% Generate sample data
Z = peaks(25);
% Create the 3D plot
figure
surf(Z);
xlabel('X');
ylabel('Y');
zlabel('Z');
ax = gca;
% Adjust the length of the axis rulers at the tick markings
ax.TickLength = [0.1, 0.1];
You can explore more on the axes properties in MATLAB from the link: https://mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html#responsive_offcanvas
I hope this address your query.
