Re: Shading Functions
- To: mathgroup at smc.vnet.net
- Subject: [mg14331] Re: Shading Functions
- From: Martin Kraus <mkraus at theorie3.physik.uni-erlangen.de>
- Date: Thu, 15 Oct 1998 00:28:38 -0400
- Organization: Regionales Rechenzentrum Erlangen, Germany
- References: <6vuo01$899@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Des Penny wrote: > > However the following does not work correctly. I'm not sure why. > > In[7]:= > Show[p2, ColorFunction->colorFun]; > > I was under the impression that the above statement caused colorFun to > operate on the z values of the function. We should get the same plot > as the preceeding Plot3D but we don't. The output of the above clearly > shows that colorFun is operating, but not correctly. > > Can anyone help explain what's going on? > > Cheers, > > Des Penny Hi Des, the on-line manual of Mathematica for ColorFunction explains: The arguments provided for the function specified by ColorFunction are always in the range 0 to 1. Thus there is another linear transformation of the z-values before colorFun gets them. Things work correctly, but are poorly documented (?ColorFunction does not give this piece of information.) Greetings Martin