On Friday 12 February 2010 15:11:17 Bruce Ford wrote:
> Thanks for this. I didn't realize that N could be an array and
> contour would know that these are the levels desired.
> I found similar in an example, but not in the contour documentation.
Just a remark: I use the help of IPython to investigate the doc-strings of
matplotlib-functions. The input "contour?" tells me
draw contour lines at the values specified in sequence *V*
> Thanks so much!
> On Fri, Feb 12, 2010 at 7:29 AM, Matthias Michler
> <MatthiasMichler@...> wrote:
> > Hi Bruce,
> > why don't you use contour as in the following ;-)
> > contour(X,Y,Z,V)
> > # -> draw contour lines at the values specified in sequence *V*
> > like in
> > x, y = np.meshgrid(np.linspace(0, 1, 100), np.linspace(0, 1, 50))
> > z = x**4 - x**2 + np.sin(y)
> > contour(x, y, z, [-0.2, 0.0, 0.2, 0.4, 0.6, 0.8])
> > Kind regards,
> > Matthias
> > On Thursday 11 February 2010 21:58:15 Bruce Ford wrote:
> >> In using the contour as in:
> >> contour(X,Y,Z,N)
> >> N is a number of automatically chosen levels.
> >> I would like to contour based on data divisions.
> >> For instance, perhaps I'd like to use a contour or color-fill
> >> (contourf) every 2 units. I'm not seeing how to accomplish this. Any
> >> points in the right direction would be appreciated.
> >> Thanks!
> >> Bruce