Re: how ColorOutput works?

• To: mathgroup at smc.vnet.net
• Subject: [mg22221] Re: how ColorOutput works?
• From: "Mariusz Jankowski" <mjkcc at usm.maine.edu>
• Date: Fri, 18 Feb 2000 02:35:04 -0500 (EST)
• Organization: University of Southern Maine
• References: <88g756\$4oo@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Nicolo, you want

Plot3D[ x^2 + y^2 , {x, 0, 1} , {y, 0, 1}, Shading -> False]

Mariusz

======================================================
Mariusz Jankowski
University of Southern Maine
mjkcc at usm.maine.edu

"Nicola Attico" <attico at peg2.difi.unipi.it> wrote in message
news:88g756\$4oo at smc.vnet.net...
> Hello,
> I've a problem with color specifications in Plot.
> I take a simple example to explain.
> Let consider:
>
> In[1]:=Plot3D[ x^2+y^2 ,{x,0,1} ,{y,0,1}, ColorOutput-> RGBColor]
>
> This works fine.
> If I try (as I need):
>
> In[1]:=Plot3D[ x^2+y^2 ,{x,0,1} ,{y,0,1}, ColorOutput-> None]
>
> this gives the error message:
>
> ColorOutput::colpc:
> Result None[GrayLevel[0.]] obtained during color
> conversion
> by applying function None to color GrayLevel[0] is not a
> GrayLevel, RGBColor, or CMYKColor color directive.
>
> What does it means?
> How can I avoid this problem?
> Thanks,
> Nicola
>
> reply also by an email message to
>
>
> ----------------
> Nicola Attico
> Dip. Fisica - Pzza Torricelli, 2 - Pisa
> E-Mail: attico at peg2.difi.unipi.it
> © 2000 by Nicola Attico, all right reserved
>
>

```

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