[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
John W. Eaton
Mon, 24 Jan 2005 13:56:10 -0500
On 24-Jan-2005, Daniel J Sebald <address@hidden> wrote:
| Anyone recall the issue with the comment below?:
| -- Function File: contour (X, Y, Z, N)
| Make a contour plot of the three-dimensional surface described by
| Z. Someone needs to improve `gnuplot''s contour routines before
| this will be very useful.
| What is the problem with gnuplot's contour?
The problem I was thinking of when I wrote that comment was that
gnuplot implements contour plots as a special type of 3D plot instead
of a 2D plot. So even though the final graph has only two dimensions,
it has a much different appearance than other 2D plots produced by
gnuplot and it is somewhat harder to combine a contour plot with
general 2D data.
I think it would also be nice if it could embed the contour levels in
the plot lines (I recall that there were plotting packages from the
mid-eighties (or even before) that could do this). Maybe gnuplot has
this feature now? I haven't checked.