Re: [Gnuplot-info] Coloring surfaces between contour lines

[<mg...@fi...>]

> define a color palette with color steps instead of a gradient, e.g.:

Thanks for your answer! Unfortunately, this is not what I mean. Your
solution would lead to something like this image:
http://img503.imageshack.us/img503/1726/example2v.png

Of course, I only tried your solution for three colors like in your
example but this only seems to affect the pm3d map. I really want a result
like in this image: http://img503.imageshack.us/img503/5128/example3x.png

(I only filled in two surfaces, but the general idea should be clear from
this)

I really don't know if this is possible at all, but if someone knows,
please let me know.

>
> set palette model RGB defined (0 "green", 1 "green", 1 "yellow", 2
> "yellow",
> 2 "red", 3 "red" )
> test palette
>
> or
>
> set palette model RGB defined (0 "green", 1 "yellow", 2 "red")
> set palette maxcolors 3
> test palette
>
>
> mgraat wrote:
>>
>> Hello all,
>>
>> I am trying to find a way to color the surfaces between contourlines. I
>> have already plotted the contourlines (see
>> http://img262.imageshack.us/img262/40/exampleq.png), but cannot find a
>> way
>> to color the surfaces between them. For instance, if you look at the
>> example picture, the areas which are bordered by the lightblue lines
>> should have one color, those by the purple another, etc.
>>
>> For reference, I created the contour lines as follows:
>>
>> set pm3d map
>> set nosurface
>> set cntrparam bspline
>> set contour
>> set xrange [1:3.64]
>> set yrange [0.09:0.96]
>> unset colorbox
>> unset key
>> splot "results.dat" using ($5):($6):($1) notitle
>>
>> The results.dat file is basically build up like this (colom 5 and 6 are
>> X
>> and Y, 1 is Z):
>>
>> 85.45 1 1.2904819 0.7095181 1.01 0.1
>> 85.68 1 1.2904819 0.7095181 1.01 0.17782794
>> *snip*
>>
>> 86.61 1 1.2904819 0.7095181 1.0150374 0.1
>> 85.06 1 1.2904819 0.7095181 1.0150374 0.17782794
>> *snip*
>>
>> etc.
>>
>> Is this in any way possible, or should I just post-process the image in
>> a
>> program like GIMP?
>>
>> NB: pm3d map uses a gradient, which is not what I want.
>>
>> Kind regards,
>>
>> Michiel
>>
>>
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>
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