Re: [Gnuplot-info] need help with contours

[nole <aa...@ya...>]

Thank you for the respond. Let me clarify.
I am trying to reproduce a plot made by other people, so I know where
contour should be in the plain. As an additional check I used "dot plot"
technique to plot my data, like that
   plot "bdr1-omgh2.dat" using 2:($3>0.13 ?$1:0) w points,\
         "bdr1-omgh2.dat" using 2:(($3<=3D0.13 && $3>=3D0.095 )?$1:0) w poi=
nts,\
         "bdr1-omgh2.dat" using 2:($3<0.095 ?$1:0) w points
This gave me the expected result, so my data is correct. I even I ask my
friend to make these contours with another plotting program using my data
and they were in the right place.
Contours should be located in the low X half of the plain and go, more or
less, on 40 degree angle to Y-axis from the lower left corner till the uppe=
r
end of Y.  But the contour line made by the script I shown (you were
correct, I forgot to write "set contour base", "unset surface", "set view
0,0" commands, but they were in the script all the time, sorry for the
confusion) produce contour lines in the *lower right* corner of the (X,Y)
plain, where, according to the picture made by the above "plot" command, Z
is <0.095
I have no idea what is going on with gnuplot. Hope you can help me. Thanks.


Hans-Bernhard Br=C3=B6ker-2 wrote:
>=20
> nole wrote:
>=20
>> I am trying to make contour lines and Gnuplot does them without any erro=
r
>> messages, but puts them in a completely wrong part of the frame.=20
>=20
> You'll have to be more specific than that.  Where does it put them, and=
=20
> why is that supposedly wrong?
>=20
>> Here is the script:
>> unset log           # remove any log-scaling
>> unset label=09    # remove any previous labels
>> unset dgrid3d       # remove any previous binning
>> set xtic auto=09    # set xtics automatically
>> set ytic auto=09    # set ytics automatically
>> set xrange[100:800]
>> set yrange[100:650]
>> set dgrid3d 140,100
>> set cntrparam levels discrete 0.095,0.11,013
>> splot "bdr1-omgh2.dat" using 2:1:3=20
>=20
> I strongly doubt that can be the actual script.  This one's not doing=20
> any contouring at all --- it's missing a "set contour" command.  And a=20
> '.' might have gone missing from the "set cntrparam" command.
>=20
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>=20
>=20

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