User`s guide

R2010b
10-4
load geoid;
contourfm(geoid, geoidrefvec)
R2010a
R2010b
Compatibility Considerations
If you call any of the contouring functions, expect the behavior changes described in the
following table.
Summary New Behavior Compatibility Considerations
Handles Each of the three contouring
functions now returns a handle
to an hggroup object as its second
output.
In previous releases, contourm
returned a handle to a MATLAB
contourgroup object as its second
output, while contourfm and
contour3m each returned an array
of patch handles.
Contour lines
and levels
The contouring functions now
produce one line per contour
level. The hggroup returned by
contourm has exactly one line
child per contour level.
The contouring functions now
construct an equivalent (or better)
display using fewer graphics
objects than in previous releases.
Default
contour levels
In contourfm and contour3m,
the default contour levels are now
consistent with contourm, as
well as the MATLAB contour and
contourf functions.
The default contour levels have
changed from those in previous
releases.
Non-positive
contour levels
If you supply 0 or a negative
number for V in the syntaxes
In previous releases, if you
supplied 0 or a negative number for