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[MUG] plotting colors in maple

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[MUG] plotting colors in maple
Author: Kristian Jantz    Posted: Thu, 23 Jan 2003 21:43:37 +0100

>> From: "Kristian Jantz" />
hello,
is it possible to set up a backgroundcolor for a plot in maple? i cant =
find a suitable option, i would also like to know whether there is a =
command that allows to set the foregroundcolor for all coming plots, so =
that i dont need to type color=3DXXX all the way


thank you,
Kristian

[MUG] Re: plotting colors in maple
Author: Robert Israel    Posted: Fri, 31 Jan 2003 11:44:15 -0800

>> From: Robert Israel />
Under Windows, it is possible to set the background colour for plots in
"window", but not "inline" mode. In Maple's "Users" directory (or in
the directory for a specific user, if you have installed Maple in
multi-user mode) there should be a file named maple8.ini (or maple7.ini
or maple6.ini if you have Maple 7 or Maple 6). This is a Windows
initialization file for Maple. It is a text file that can be edited
with Notepad or any text editor. Look for a line that starts

PlotBGColor=

If what comes next is default or 255 255 255, the plot backgrounds will be
white. If it is 0 0 0, they will be black. You can specify any three
numbers from 0 to 255 for the red, green and blue components. This only
takes effect when you start a new Maple session; you can't change the
colour in the middle of a session.

The default foreground colours for most plots are kept (in RGB form) in
the variable _COLORRGB. By default this is set to

[1.0, 0., 0.], [0., 1.0, 0.], [1.0, 1.0, 0.], [0., 0., 1.0], [1.0, 0.,
1.0], [0., 1.0, 1.0]

i.e. the sequence is red, green, yellow, blue, magenta, cyan (if there's
just one curve to plot, it will be red, but if there are several the
first will be red, the second green, etc., repeating if necessary).
You can change this. The RGB values for the named colours can be
found in `plot/colortable`. For example, to make the sequence gold, gray,
maroon, wheat, plum, brown, aquamarine you could say

> mycolours:= [gold, gray, maroon, wheat, plum, brown, aquamarine];
> _COLORRGB:= seq(`plot/colortable`[c], c = mycolours);


Robert Israel /> Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia
Vancouver, BC, Canada V6T 1Z2


On Thu, 23 Jan 2003, Kristian Jantz wrote:

>
> >> From: "Kristian Jantz" /> >
> hello,
> is it possible to set up a backgroundcolor for a plot in maple? i cant =
> find a suitable option, i would also like to know whether there is a =
> command that allows to set the foregroundcolor for all coming plots, so =
> that i dont need to type color=3DXXX all the way
>
>
> thank you,
> Kristian
>



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