Jeweler's Loupe

A Jeweler's Loupe tool that provides a magnified view of a plot.

Description

JEWELERSLOUPE modifies a figure to enable a Jeweler's Loupe tool.
   JEWELERSLOUPE(FIG) will modify the figure with handle FIG to allow a
   jeweler's loupe tool, which magnifies the axes by a factor of 4, to
   appear whenever a user clicks on an axes. Dragging will cause the loupe
   to follow the cursor. The tool assumes that any axes clicked will be a
   linear 2-D axes. Performance will degrade as the amount of data in the
   axes increates. If no figure is given, the loupe will appear in the
   current figure.

   Example:
   plot(magic(3));
   jewelersLoupe(gcf);

• Acknowledgements: This submission has inspired the following:; On-figure magnifier
• MATLAB release: MATLAB 7 (R14)

[Bob McKoy]

Seems similiar to "magnify" under File Exchange > Graphics > Graphical Data Exploration and Interaction which has been up since 2004.

[Nilimb]

excellent. similar to magnify. Unlike magnify, does not have issue with complex parenting involving panels and scrollpanels