Ben writes:
> For my purposes the INTERPOLATE method is probably just the ticket,
> but I do have this lingering question about the fact that the input
> values are drawn from the surface of a sphere. What are the
> conditions under which I do need to worry about it? Is it the spacing
> between the input values? The extend over the sphere? Some
> combination?
Well, I'm thinking about this now, too, and I'm just
thinking out loud, but I wonder if this is only im****tant
if your input coordinates have already been projected
onto some kind of map projection. In which case, maybe
you could project them back into UV coordinates, do
the gridding there (without the dread SPHERE keyword
set), and then reproject them back to lat/lon coordinates.
Just an idea. I'd like to hear from someone with more
experience with this.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Se****e ma de ni thui. ("Perhaps thou speakest truth.")
|
