gnuplot-info

[Gnuplot-info] pm3d map + contour lines

[fly a. <vic...@gm...>]

Hi all.
I want to have a colormap combined with contour lines on one plot.
But if I do that I also get the lines (not contour lines, but those I'd get
if I just did splot 'file' u 1:2:3 without any other options specified)
plotted, which I don't want. Is there a way to just have countours and
colormap?
What I did was:

set style data pm3d
set pm3d map
# unset surface
set cntrparam levels 5
set samples 10
set cntrparam levels 25
set samples 100
set contour base
splot 'filename' using 9:10:5 title ""

So if I do in the last line: with lines palette 
then I get the unwanted extra lines.
If I don't, then I only get colormap and no contours...
Hope I made it clear. Any ideas? 
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Re: [Gnuplot-info] pm3d map + contour lines

[<br...@ph...>]

fly away wrote:

> I want to have a colormap combined with contour lines on one plot.
> But if I do that I also get the lines (not contour lines, but those I'd get
> if I just did splot 'file' u 1:2:3 without any other options specified)

You'll probably have to write the contours to a "table" file first.

Setting pm3d to 'explicit', and "unset surface" may also help.

> set contour base

That's not very likely a good idea.  "set contour surface" is more 
likely to remain visible despite pm3d output being on the base, too.

Re: [Gnuplot-info] pm3d map + contour lines

[fly a. <vic...@gm...>]

Thanks.
>You'll probably have to write the contours to a "table" file first.
>Setting pm3d to 'explicit', and "unset surface" may also help.

If I do so, one of the most valuable advantages of gnuplot - speed - will be
negated :-( I use a script to generate 3x3 multiplot images - about 400
images at a time. So extra file input-output will likely slow it down. 

> set contour base

>That's not very likely a good idea.  "set contour surface" is more 
>likely to remain visible despite pm3d output being on the base, too.
Didn't make any difference.

I guess for now I'll just do without contours. But any help is still
appreciated if there IS a way to do what I want.

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