Hi Anan,
Thank you very much for your quick response, and for the detailed information
you kindly sent me.
After reading through PLplot document I realized that my first email was not
very clear and might have confused you.
Let me show my code first:
#########################################
# CODE STARTS FROM HERE (FORTRAN)
#########################################
subroutine plplot_contour(lclab,ccol,clskip,clspace,cthick,shedge,xg,yg,zg)
implicit none
logical , intent(in) :: lclab
integer(4) , intent(in) :: ccol, clskip
real(8) , intent(in) :: clspace
real(8) , intent(in) :: cthick
real(8) , intent(in) :: shedge(:)
real(8) , intent(in) :: xg(:), yg(:), zg(:,:)
! work
integer(4) :: nxc, nyc
integer(4) :: i, nshedge, sigdig
nxc = size(zg,1)
nyc = size(zg,2)
nshedge = size(shedge)
call plcol0(ccol)
call plwidth(cthick)
do i=1, nshedge
if( shedge(i)>=0 )then ! solid line
call pllsty(1)
else ! broken line
call pllsty(2)
endif
if( lclab .and. mod(i-1,clskip)==1 )then ! with label
call pl_setcontlabelparam( 0.01D0, 0.6D0, clspace, 1)
else ! without label
call pl_setcontlabelparam( 0.01D0, 0.6D0, clspace, 0)
endif
sigdig = numsigdig( shedge(i) )
call pl_setcontlabelformat(4,sigdig)
call plcont( zg , 1, nxc, 1, nyc, &
& (/shedge(i)/), xg, yg )
enddo
end subroutine plplot_contour
############################################################
# CODE ENDS HERE (Many thanks again for supporting FORTRAN!)
############################################################
This is a FORTRAN code which takes a 2-dimentional array and plot it with
plcont, where
I also use pl_setccontlabelparam to specify how far contour labels stand "off
lines".
In this specific case, I suppose that the best example would be Demo09-01:
http://plplot.org/examples.php?demo=09 ,
, and I tried to ask if countour labels could be placed in line-break, e,g, :
https://docs.generic-mapping-tools.org/6.3/gallery/ex13.html.
Shozee
> ----- Original Message -----
>
> From: "Alan W. Irwin" <alan.w.irwin1...@gmail.com>
> To: "koitaro...@yahoo.co.jp" <koitaro...@yahoo.co.jp>
> Cc: "plplot-general@lists.sourceforge.net"
> <plplot-general@lists.sourceforge.net>
> Date: 2022/01/18 火 13:32
> Subject: Re: [Plplot-general] Line break for plcont
>
>
> On 2022-01-18 12:19+0900 koitaro...@yahoo.co.jp wrote:
>
> [...]
> > There is one option I wish I could have in plplot: making a linebreak to
> > put labels in between.
> >
> > To be precise, there may be two options. One is, make a line, put a white
> > box on the line, then put numbers in.
> >
> > The other option is, literally break a line (draw two lines with some
> > space) and put numbers in between.
> >
> > (Both look good to me).
> >
> >
> >
> >
> > Hopefully anyone can spare some time to consider adding it or tell me how ?
>
> Hi Shozee:
>
> I am answering you on the assumption your subject line should have been "line
> break for PLplot"
> since you did not mention plcont anywhere inside your email.
>
> If that assumption is correct I suggest you take a look at pllegend
> which was designed to give users tremendous control over how text (and
> graphics) are arranged within a legend (within a plot). Of course,
> that enormous capability makes its API complex, but check the
> [documentation of that
> API](http://plplot.org/docbook-manual/plplot-html-5.15.0/pllegend.html)
> to see whether that API might provide exactly what you need. That API
> is demonstrated in a simplistic way in [example
> 4](http://plplot.org/examples.php?demo=04) and [example
> 26](http://plplot.org/examples.php?demo=26) which are useful to show
> how to turn everything off other than the small subset of that API
> that you need. That API is demonstrated in a more comprehensive way
> in [example 33](http://plplot.org/examples.php?demo=33).
>
> Good luck and let us know how it goes!
>
> Alan
> __________________________
> Alan W. Irwin
>
> Research affiliation with the Department of Physics and Astronomy,
> University of Victoria, Victoria, BC, Canada.
>
> Programming affiliations with the FreeEOS equation-of-state
> implementation for stellar interiors (freeeos.sf.net); the Time
> Ephemerides project (timeephem.sf.net); PLplot scientific plotting
> software package (plplot.org); the libLASi project
> (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
> and the Linux Brochure Project (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
> __________________________
>
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