Non Uniform grids

Some observations after playing with some of the examples:
(1) In the geodesic.py demo if I set the initial nglDraw and nglFrame
(lines 70,71) resources to True the plot bombs. I get:

In [71]: contour = Ngl.contour(wks,ke,resources)
fatal:ContourPlotDraw: CTTMTL/ICAEDG - LOGIC ERROR
  ERROR 4 IN CTTMTL/ICAEDG - LOGIC ERROR
fatal:ContourPlotDraw: CTMESH - UNCLEARED PRIOR ERROR
fatal:ContourPlotDraw: draw error
warning:WorkstationDeactivate: workstation not active or not opened

I would like to use this facility for plots other than lat/lon map
plots - is this possible.

(2) the chkbay.py and seam.py both work OK if I set the inital
Draw/Frame to True.

(3) The description how the grid is defined is unclear in the seam.py -
the lat/lon grids are two dimensional but the grid elements are
described as quadrilaterals which need 4 points? So how does this work?

Bottom line - a bit more information is needed to make the really
powerful routines more useful. As it stands, I do not have enough
information to generalize the examples beyond the specific grids used.
I would think that I could produce the clmdiv plot in a couple of calls
if I could figure out what the various mesh routines need as input.
The one I understand and is the easiest to implement is the
sfXCellBounds/sfYCellBounds but as seen above, there is something I do
not get.

Thanks for any help.
--Jim

On Dec 8, 2004, at 9:05 PM, Mary Haley wrote:

>
> Dear PyNGLers,
>
> I've just released a new version of PyNGL (0.1.1b3) that contains some
> new functionality and bug fixes. To see what's new
> and to download it, visit:
>
> http://www.pyngl.ucar.edu/download.html
>
> Fred and I are creating a suite of examples that will cover a wide
> range of the various types of plot resources
> that a user might want to set (like tweaking the appearance of contour
> lines, changing font heights, using color
> in various ways, overlaying plots on various maps, changing the map
> resolution, etc). If you have any plots
> that you've created with PyNGL that you'd like to contribute, we'd be
> happy to include them. These examples will
> all become part of the pynglex example suite.
>
> Cheers,
>
> --Mary
>
> _______________________________________________
> pyngl-talk mailing list
> pyngl-talk_at_ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/pyngl-talk
>

_______________________________________________
pyngl-talk mailing list
pyngl-talk_at_ucar.edu
http://mailman.ucar.edu/mailman/listinfo/pyngl-talk
Received on Tue Dec 14 2004 - 12:25:33 MST