Oddities with the new contour labels feature

[Juhász P. <pet...@gm...>]

Dear list,

I've tested the new contour labels feature, and I found a few problems.

First, when I just say

splot x**2+y**2

the program replies with 'warning: This plot style is only for
datafiles , reverting to "points"'. 
Something like 'You must use "set contours" first to use this feature'
would be more helpful.

Let's enable it:

set contour
set view map

Then the real strange thing:

splot x**2+y**2, x**2+y**2 w labels
splot x**2+y**2 w labels, x**2+y**2

The two are not equivalent: the second one puts the legend for the
contours at the right edge of the canvas.

When using pm3d:

splot x**2+y**2 w labels , x**2+y**2 w pm3d

The pm3d surface hides the labels. Which is logical, come to think of
it, but it confused me for a second.


'show cntrlabel' does not work.


Labels are not displayed if contours are drawn at the surface, not at
the bottom. At least a warning should be issued in this case if this is 
intentional.


Otherwise, it is a good thing to have, one that was on top of the
wishlist for many, I'm sure.

Peter Juhasz

ps. I'm sorry for not being active on gnuplot lately, it's just that in
my current job I don't use it too much anymore, and with all the work to
do I don't have the incentive to hack on gnuplot.