Re: Re: Color space conversion in Mathematica v6.0

*To*: mathgroup at smc.vnet.net*Subject*: [mg89052] Re: [mg89008] Re: Color space conversion in Mathematica v6.0*From*: Curtis Osterhoudt <cfo at lanl.gov>*Date*: Sat, 24 May 2008 03:57:10 -0400 (EDT)*Organization*: LANL*References*: <g11ram$ag5$1@smc.vnet.net> <g134dc$lvi$1@smc.vnet.net> <200805230710.DAA25927@smc.vnet.net>*Reply-to*: cfo at lanl.gov

Hi, Bob, What about something like Plot3D[Exp[-x^2 - y^2], {x, -2, 2}, {y, -2, 2}, ColorFunction -> Lighter /@ Lighter /@ (ColorData["GrayTones"][#3] &)] ? You should be able to apply "Lighter" to the color function you'd like. (It took me a long while to figure this one out, though I had the general gist right. Only when I finally browsed to the ref/ColorData page in the help menu did I get it.) Cheers, C.O. On Friday 23 May 2008 01:10:03 Robert Buchanan wrote: > On May 22, 2:38 am, ragfield <ragfi... at gmail.com> wrote: > > (* g is a Graphics expresion *) > > g//.{c:(_RGBColor|_CMYKColor|_Hue):>ToColor[c,GrayLevel]} > > > > It's more complicated for Graphics3D expressions, as you must deal > > with lighting issues. > > > > -Rob > > Thanks for the suggestion. Unfortunately it is just this more > complicated situation I must deal with. For 2D graphics I am able to > produce grayscale versions of the color graphics. I am now left with > the 3D graphics. Some are produced by Plot3D[] and others by > RegionPlot3D[]. I have tried specifying ColorFunction->"GrayTones", > but the output seems too dark (too black, not enough gray). If you > have any further suggestions or can point me to some documentation or > examples, I would be grateful. > > Thanks, > Bob -- ========================================================== Curtis Osterhoudt cfo at remove_this.lanl.and_this.gov PGP Key ID: 0x4DCA2A10 Please avoid sending me Word or PowerPoint attachments See http://www.gnu.org/philosophy/no-word-attachments.html ==========================================================

**References**:**Re: Color space conversion in Mathematica v6.0***From:*Robert Buchanan <j.robert.buchanan@comcast.net>