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List:       gnuplot-info
Subject:    [Gnuplot-info] Trying to get solid and dashed contours for +ve/-ve values
From:       Lindley Lentati <ltl21 () mrao ! cam ! ac ! uk>
Date:       2014-04-07 9:31:39
Message-ID: CAOOxXGiC7tT62jFm9RhQRi+MYd-Q6S2DJHUWMH9NsQRXFQgu6g () mail ! gmail ! com
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Hi all, I have a question, i have a 3d dataset i am trying to plot, with an
overlay of contours, such that positive areas have solid contours, and
negative values have dashed contours, the gnuplot commands i entered look
like th efollowing:



splot
'/data/ltl21/Data/PDB/HDFNI/BlindSurvey/imageresults/spectrum/HDF1map:189.20135-62.20442'
u 1:2:3
set pm3d
unset surface
set pm3d map
replot
set xrange [   -6.88:    6.88]
set yrange [   -6.88:    6.88]
replot
set contour base
set cntrparam levels 8
set cntrparam levels discrete -8*0.0004946, -6*0.0004946, -4*0.0004946,
-2*0.0004946, 2*0.0004946, 4*0.0004946, 6*0.0004946, 8*0.0004946
replot
set style line 1 lc rgb "white" lw 2 lt 1
set style line 2 lc rgb "white" lw 2 lt 1
set style line 3 lc rgb "white" lw 2 lt 1
set style line 4 lc rgb "white" lw 2 lt 1
set style line 5 lc rgb "white" lw 2 lt 1
set style line 6 lc rgb "white" lw 2 lt 1
set style line 7 lc rgb "white" lw 2 lt 1
set style line 8 lc rgb "white" lw 2 lt 1
set style line 9 lc rgb "white" lw 2 lt 1
set style increment userstyles
replot






This gives me a set of white solid contours on all the levels, fine, and i
can change the colour of these for specific contours without a problem, but
if i try for eg:


set style line 3 lc rgb "white" lw 2 lt 2
replot





nothing happens, and i have no idea how to make some of them dashed and
some not...
Does anyone have any suggestions?

Cheers
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