Mouse interaction with gnuplot canvas

Mouse movement
Track mouse coordinates
Left-click
Mark current coordinates on plot
unzoom Unzoom (restores original plot)
rezoom Rezoom
Zooming
Firefox - Click and drag with right mouse button
Chrome - Click and drag with right mouse button
IE - Click and drag with right mouse button
Safari - Click and drag with right mouse button
Opera - Click and drag with the center mouse button (the scroll wheel)
To double-click on a Mac laptop: put two fingers next to each other on the trackpad then click and hold down while you drag. When you release the graph will update.

If the graph is not working, please consider upgrading to the newest version of your browser.