Zooming and panning
default, the graph is set to “auto scaling” which means that the graph
display range is just as large as it needs to be to display all data sets. Keep
in mind that the Y-axis doesn’t start with 0 this way; it starts with the
lowest data point! Zooming to the desired view can be done in
View g Zoom in (ctrl +, mouse wheel forward) - Zooms in 25%. The center of zooming will be the place you have last clicked on the graph. Pressing ctrl-shift-[+] zooms in with larger steps.
View g Zoom out (ctrl -, mouse wheel backward) - Zooms out 25%. The center of zooming will be the place you have last clicked on the graph. Pressing ctrl-shift-[-] zooms out with larger steps.
View g Zoom to range (ctrl-R) - Zooms to a range you specify.
View g Zoom to selected (shift-F5) - Auto-scales to the selected plots.
View g Zoom to bitmap (ctrl-F5) - Auto-scales to the bitmap, if one is loaded.
View g Auto scale (F5, or right-click) - Redraws all plots in auto scale mode. If you ever look at an empty graph, this command will find your plots.
The zoom rectangle
You can also zoom in by using a zoom rectangle. Click and drag the mouse over the image. This will create a “rectangle to zoom to”. After doing this, a right mouse click will zoom in to the rectangle. Another right click (or the auto scale command above) will zoom back to the auto-scale view of the graph.
Zooming individual axes
You can zoom one axis at a time with the corresponding axis menus.
Panning is done by dragging the mouse over the graph while pressing "Shift".