Re: Showing a limited GrayLevel
- To: mathgroup at smc.vnet.net
- Subject: [mg19052] Re: Showing a limited GrayLevel
- From: paulh at monon.wolfram.com (P.J. Hinton)
- Date: Thu, 5 Aug 1999 01:34:44 -0400
- Organization: "Wolfram Research, Inc."
- References: <email@example.com>
- Sender: owner-wri-mathgroup at wolfram.com
In article <7o5eg9$rf1 at smc.vnet.net>, Steve Hocter <steve at weinstein.maths.keele.ac.uk> writes: > I have a quick question about changing the GrayLevel in contour plots. > > When using ContourPlot, how is it possible to limit the GrayLevel range? >That is, instead of GrayLevel being scaled between 0 and 1, the contours >would be shown between 0.5 and 1 cutting out any totally black parts of the >plot. You may want to use the ContourGraphics option ColorFunction, defining it to be something like this: ColorFunction :> ( If[ # <= 0.5, (* scaled value would have produced GrayLevel[0.5] or less *) (#; GrayLevel), (* ignore value and return white directive, *) GrayLevel (* otherwise, used the scaled value *) ]&) -- P.J. Hinton Mathematica Programming Group paulh at wolfram.com Wolfram Research, Inc. Disclaimer: Opinions expressed herein are those of the author alone.