View source for Interactive graph zooming

[[Category:Graphs]]

When you first show a result as a graph, it automatically set the ranges for the vertical and horizontal axes so that all data points are visible (ignoring values containing [[INF, NAN, and NULL - Exception values|INF, NAN, or Null]]).  Now, you can zoom in to show just part of the graph by dragging the cursor.  Drag the cursor horizontally from a low to high value to zoom in along the horizontal axis. Drag it vertically to zoom along the vertical axis. Drag it diagonally to create a rectangle to zoom in on both axes. It records the zoomed min and max values in the Axis ranges tab of Graph setup as if you had set them manually.

* Drag the mouse horizontally to zoom to a manually-scaled x-axis interval:
::[[image:graph_zoom_horiz.png]] &rarr; [[image:graph_zoom_horiz_after.png]]
::Transparent blue selection rectangle appears while dragging. After drag, Y is still autoscaled, but now to the data in the selected range.
* Drag the mouse diagonally to zoom to manually-scaled intervals on both axes:
::[[image:graph_zoom_diag.png]] &rarr; [[image:graph_zoom_diag_after.png]]
* When you move the mouse over a zoomed graph, autoscale hover icon buttons appear. Click on one to auto-scale that axis.
::[[image:graph_zoom_autoscale.png]] &rarr; [[image:graph_zoom_autoscaley_after.png]]
::Clicked on the vertical axis autoscale hover icon. Horizontal axis is still manually scaled.
* Drag vertically to zoom to a manually-scaled y-axis interval.
::[[image:graph_zoom_vert.png]] &rarr; [[image:graph_zoom_vert_after.png]]
* Zooming has the same effect as changing the manual scale range in Graph Setup. In fact, it records your selected end points there.
::[[image:graph_zoom_graphsetup_after.png]]

== See also ==
* [[Graph settings]] 
* [[Graph setup dialog]]