h: Figure handle,default: gcf
1 Draw a rectangle by dragging open a box to create a magnifier axis
2 Click and dragging move the axis
3 Scroll to magnify the graph in magnifier axis
4 Press ESC to freeze the graph in magnifier axis; dragging and moving
axis are still availible, but scrolling is not
5 Press ESC again to end
Note: Magnifier axes are tagged 'Magnifier'(for findobj/findall)
Supported only for 2D graph
LY Cao (2021). magnify 2D (https://www.mathworks.com/matlabcentral/fileexchange/38660-magnify-2d), MATLAB Central File Exchange. Retrieved .
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