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On 11 Feb 1998, Larry C Linik wrote: > After I have generated a plot I would like to be able to read the > coordinates of points of the curve using the mouse cursor. Can this > be done in Mathematica? If so has any produced a package that does > this? I'm not sure what you mean by "read." You can get the Mathematica 3.0 front end to display the coordinates of the location of your mouse pointer within a 2-D graph by doing the following: 1) Click on the graph, so that its bounding box appears. 2) Move the mouse pointer within the graphic. 3) Hold down the Mod1 key (Unix). The x-y coordinates will be displayed in the status area at the bottom of notebook window. I think the equivalent keys for Windows and Macintosh are Ctrl and Command respectively, but don't quote me on that :-). -- P.J. Hinton Mathematica Programming Group firstname.lastname@example.org Wolfram Research, Inc. http://www.wolfram.com/~paulh/ Disclaimer: Opinions expressed herein are those of the author alone.