I am working with the P2_01 java app in the tutorial and the figure in this
example shows a cursor on the plot, and the value of where the cursor is is
displayed in the upper left corner. But when I run the example, I can't do
anything but move the graph around within the frame by left clicking on it
and dragging the mouse. I can also zoom in and out by shift clicking. How
is the cursor and getting data implemented in this example and if it is not,
is there an example in a tutorial that does show how to do this?
Luke