Hi Nandita,
There is an example in Section 3.5 of Ugo's VisAD tutorial.
However, you'll want to substitute an Irregular2DSet for
the Linear2DSet used in that example. Use the Irregular2DSet
constructor signature:
public Irregular2DSet(MathType type, float[][] samples)
where samples is dimensioned float[2][number_of_points]
and you set your lat coordinates into samples[0][i]
and lon coordinates into samples[1][i].
Contouring from IrregularSets does not generate labels -
if you want those then resample the FlatField you create
to a Linear2DSet (or other Gridded2DSet) that covers the
region of your Irregular2DSet.
Good luck,
Bill
On Fri, 14 Oct 2005, Nandita Mangal wrote:
> Hi there,
>
> Just looked at Visad today and was wondering if I can
> use Visad to create contours from ecological data
> (consisting of a lat,long and some Z value(say
> temperature)) in my application....If yes then could
> someone tell me where I should start/ which classes in
> Visad to explore to do the above?
>
> thanks,
> Nandita Mangal
> San Diego Supercomputer Center
