Re: Documentation on (Color) Blend
- To: mathgroup at smc.vnet.net
- Subject: [mg111294] Re: Documentation on (Color) Blend
- From: Patrick Scheibe <pscheibe at trm.uni-leipzig.de>
- Date: Mon, 26 Jul 2010 06:39:36 -0400 (EDT)
Hi, you don't need the (buggy) sample with the Table. Just read a bit in the Blend documentation and eventually do something like DensityPlot[x, {x, -1, 1}, {y, 0, 1}, FrameTicks -> None, ColorFunction -> (Blend[{{0, Green}, {0.4, White}, {0.6, White}, {1, Red}}, #] &)] Cheers Patrick On Sun, 2010-07-25 at 01:58 -0400, telefunkenvf14 wrote: > Group: > > The documentation on Blend[], in the "Possible Issues" section, > contains the following example. > > ---------------- > In plot functions, use ColorFunctionScaling to control global scaling > of variables: > > Table[DensityPlot[x, {x, -2, 3}, {y, 0, 1}, FrameTicks -> None, > ColorFunction -> (Blend[{Red, Green}, #] &), > ColorFunctionScaling -> t], {t, {False, True}}] > ---------------- > > I noticed that when I evaluate the code, the original output is not > reproduced. On my machine the new plots look exactly the same. > (Windows 7, 64-bit, Mathematica 7.0.1) > > Can someone offer a fix? My goal is to generate a Green to White to > Red spectrum with a 'fuzzier' center; eventually I'll use this for > coloring a map. > > -RG >