extracting points plotted by ContourPlot

*To*: mathgroup at smc.vnet.net*Subject*: [mg3356] extracting points plotted by ContourPlot*From*: easther at cfi.waseda.ac.jp (Richard Easther)*Date*: Thu, 29 Feb 1996 03:25:44 -0500*Organization*: Waseda University*Sender*: owner-wri-mathgroup at wolfram.com

Hi! Can someone help me with the following problem. After doing a figure = ContourPlot[f[x,y], ..., Contours ->{0}], I want to extract the set of points actually plotted - ie a set of {x,y} where f[x,y] == 0 for some additional processing. The command TextForm[InputForm[Graphics[ figure ]]] gives me a text string which has a series of Line commands that actually contains the {x,y} values that are plotted. Now what I want to know is this: can someone tell me a nice (or even ugly but workable!) way of extracting the list(s) of points plotted by the Line command(s)? If so I would be very grateful! Richard +=================================================================+ | Richard Easther No quote - just my address | | easther at cfi.waseda.ac.jp | +=================================================================+ ==== [MESSAGE SEPARATOR] ====