contourf and axis

[John W. Eaton]

On 18-Jun-2009, Marco Caliari wrote:

| when I execute
| 
| contourf(peaks),axis([10,20,10,20])
| 
| I get the strange picture you can see here: 
| http://157.27.10.252/~caliari/contourfaxis.png
| both with 3.2.0 and 3.0.5 (gnuplot 4.2.5).

My guess is that gnuplot is not handling filled regions correctly when
the endpoints of the region intersect different axes.  For example,
try this instead

  contourf(peaks),axis([11,20,11,30])

to see that the portions of the regions that intersect a single axis
appear to be filled correctly but the ones that intersect two axes are
not.

jwe