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Re: Question about ColorFunction

• To: mathgroup at smc.vnet.net
• Subject: [mg126605] Re: Question about ColorFunction
• From: Sseziwa Mukasa <mukasa at gmail.com>
• Date: Thu, 24 May 2012 03:30:59 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <201205230729.DAA04974@smc.vnet.net>

The arguments to ColorFunction are scaled,  from the help documentation:

With the usual default setting  ColorFunctionScaling->True, all arguments supplied to  func are scaled to lie in the range 0 to 1.

Compare:

Plot3D[Sin[x + y], {x, 0, 3}, {y, 0, 3},
 ColorFunction -> (Hue[(Sin[3 #1 + 3 #2] + 1)/2] &)]

Regards,
	Sseziwa


On May 23, 2012, at 3:29 AM, Jee Lou wrote:

> Anyone explain to me how ColorFunction works? Why Plot3D[Sin[x + y], {x, 0, 3}, {y, 0, 3},  ColorFunction -> (Hue[Sin[#1 + #2]] &)] and Plot3D[Sin[x + y], {x, 0, 3}, {y, 0, 3}, ColorFunction -> (Hue[#3] &)] return different color distributions?
>

• References:
  • Question about ColorFunction
    • From: Jee Lou <ywdr1987@gmail.com>