Problem: 'No scaling environment' error message

[Witold Interewicz]

Hello,

> N.B. Coordinate transform queries are only valid after something has
> been displayed.

Oops, I missed it. Thanks.

Greetings
Witek

Dnia 29-03-2006 o godz. 23:46 Charles Seman napisał(a):
> Witek,
>
> From: http://grads.iges.org/grads/gadoc/script.html#commands
>
> q <http://grads.iges.org/grads/gadoc/gradcomdquery.html> transform
> coord1 coord2 -- Coordinate transformations
>
>       where transform is one of:
>       xy2w       XY coords to world coords
>       xy2gr      XY coords to grid coords
>       w2xy       world coords to XY coords
>       w2gr       world coords to grid coords
>       gr2w       grid coords to world coords
>       gr2xy      grid coords to XY coords
>
> XY coords are inches on the page (screen) where the page is 11x8.5
> inches or 8.5x11 inches, depending on how GrADS was started.
>
> World coords are lat, lon, lev, time or val, depending on what the
> dimension environment is when the grid was displayed. Note that time is
> displayed (and must be specified) in GrADS absolute date/time format.
> val is the value coordinate for a 1-D plot (linegraph).
>
> Grid coordinates are the i,j indices the grid being displayed. For
> station data sets, grid and world coordinates are equivalent except for
> the time dimension. Note that if you display a grid from a 'wrapped'
> data set, the grid numbers may be out of range of the actual file grid
> numbers. (A 'wrapped' data set is a data set that covers the earth in
> the longitude direction. Wrapping takes place automatically). The
> conversions are done consistently, but you may want to be sure you can
> handle the wrapping case if your data set is global.
>
> N.B. Coordinate transform queries are only valid after something has
> been displayed, and the transformations apply only to the most recent
> item that has been displayed.
>
>
>
> I hope this helps,
> Chuck
>
> Witold Interewicz wrote:
>
> >Hello,
> >
> >I'm trying to convert some geographical coordinates to virtual page coordinates.
> >Unfortunately command
> >'query gr2xy La Fi'
> >returns
> >'No scaling environment'
> >error message.
> >What is the proper way of use and context of calling for 'query gr2xy' command?
> >
> >Greetings
> >Witek
> >
> >----------------------------------------------------
> >Bezpieczeństwo dla wszystkich - gry i zabawy edukacyjne!
> >http://klik.wp.pl/?adr=http%3A%2F%2Fadv.reklama.wp.pl%2Fas%2Fdroga.html&sid=711
> >
> >
>
> --
>
> ********************************************************************
>  Charles Seman                                charles.seman at noaa.gov
>  U.S. Department of Commerce / NOAA / OAR
>  Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
>  201 Forrestal Road                              fax: (609) 987-5063
>  Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
> ********************************************************************
>
> "The contents of this message are mine personally and do not reflect
> any position of the Government or NOAA."
>
>
>
> Załączniki:
>  - bezNazwy1.html

----------------------------------------------------
Zagraj o tytuł Króla Strzelców i poczuj atmosferę Ligi Mistrzów:
http://klik.wp.pl/?adr=www.ligamistrzow.wp.pl&sid=710