gnuplot-info

[Gnuplot-info] clabel in splot

[Thomas P. <pfr...@ph...>]

Dear community,
I am trying to change the color of the contour in splot (with "unset 
clabel", as I do not want to label it, neither do I want to change 
colors from one contour to another) but all I tried did not work. 
Perhaps you know a solution?
If I unset clabel, the color stays red, no matter where I try to set 
another linetype. I also tried using the awk file label-contours.awk, 
which I downloaded from the net, but this only allows to handle the 2D 
contour-plot (map) nicely. Is there any possibility to change the 
default red-color, if I do not want to change the color for every single 
contourline?

Another minor problem I have is the offset of the x- and y-labels on my 
axes. They almost interact with the actual axis. What command would I 
use to change the label offset to the axes? I tried to figure ti out 
using gnuplot help, but could not find the appropriate section.

I am using gnuplot 4.0 and this is an extraction of my code:

set terminal postscript enhanced color solid
set encoding iso_8859_1

set tics out
#unset clabel
set contour base
set cntrparam bspline
set cntrparam points 5
set cntrparam order 4

set pm3d at bs hidden3d 110
set palette rgbformulae 30,31,32
unset hidden3d
unset surf
set style line 110 lt 9 lw 0.01
set grid
splot "20070205_cn2_m.txt" matrix with lines
quit


Thanks a lot for your help
Thomas

Re: [Gnuplot-info] clabel in splot

[<HBB...@t-...>]

Thomas Pfrommer wrote:

> I am trying to change the color of the contour in splot (with "unset 
> clabel", as I do not want to label it, neither do I want to change 
> colors from one contour to another) but all I tried did not work. 

I think that's because you threw pm3d into the mix without actually 
needing it.  Contouring and pm3d don't mix particularly well, in version 4.0

> If I unset clabel, the color stays red, no matter where I try to set 
> another linetype. 

I can only reproduce that if I include your pm3d statement.  To 
understand the reason, see "help set pm3d"

> Another minor problem I have is the offset of the x- and y-labels on my 
> axes. They almost interact with the actual axis. What command would I 
> use to change the label offset to the axes? 

Are you concerned about the x and y axis labels, or about the tick 
labels?  The former have offset arguments, the latter don't.

> set pm3d at bs hidden3d 110
> set style line 110 lt 9 lw 0.01

If you insist on keeping the pm3d stuff, you'll have to change the '9' 
up there to re-colour the grid.

Otherwise, add a "lt <n>" argument to your splot command itself.

Re: [Gnuplot-info] clabel in splot

[Thomas P. <pfr...@ph...>]

Thanks for the fast reply.

>> I am trying to change the color of the contour in splot (with "unset 
>> clabel", as I do not want to label it, neither do I want to change 
>> colors from one contour to another) but all I tried did not work.     
>
> I think that's because you threw pm3d into the mix without actually 
> needing it.  Contouring and pm3d don't mix particularly well, in 
> version 4.0
>
>   
OK, that means, if I want to have a colorful surface, I cannot use any 
other (single) contour color than red. It would just help to highlight 
some features of the surface, which are not completely visible. 
Unfortunately, our admin did not yet update to 4.2.
>> If I unset clabel, the color stays red, no matter where I try to set 
>> another linetype.     
>
> I can only reproduce that if I include your pm3d statement.  To 
> understand the reason, see "help set pm3d"
>
>  
>> Another minor problem I have is the offset of the x- and y-labels on 
>> my axes. They almost interact with the actual axis. What command 
>> would I use to change the label offset to the axes?     
>
> Are you concerned about the x and y axis labels, or about the tick 
> labels?  The former have offset arguments, the latter don't.
>   
I meant the tic labels. OK I have to deal then with it. set ticslevel 
might help I guess.
>  
>> set pm3d at bs hidden3d 110
>> set style line 110 lt 9 lw 0.01
>>     
>
> If you insist on keeping the pm3d stuff, you'll have to change the '9' 
> up there to re-colour the grid.
>
> Otherwise, add a "lt <n>" argument to your splot command itself.
>
>   
Actually this is the answer (not "otherwise" but "in addition")!! I am 
still using set pm3d and in the splot command lt <n1> ... Now I can 
change the color of the contour line, whereas the grid on the surface is 
specified by the set pm3d ... hidden3d lt <n2> command.
Thanks a lot
Thomas