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20000204: ivcord values
- Subject: 20000204: ivcord values
- Date: Fri, 4 Feb 2000 15:32:11 -0700
Mike,
The 5 known coordinates are stored as the numbers shown
since there are some special transformation GEMPAK can make with
those coordinates.
Any other coordinate can be stored as a packed integer, which is
how HAGL, HYBL, PAGE etc are represented. You should always convert
your coordinate name to the integer representation name using the
LV_CORD() subroutine- eg, you pass it PRES, it returns to the
number 2, you pass it HAGL and it returns a really long number
(doen't hard code in numbers...that guarantees things will break later).
To reverse the transformation, pass the numeric coordinate to
LV_CCRD.
Steve Chiswell
Unidata User Support
On Fri, 4 Feb 2000, Mike Trexler wrote:
> Chiz,
>
> Thanks for the earlier help with my oversight. My new question is...
> in the subroutine GD_WPGD, the values for IVCORD are quoted in
> the documentation to be:
>
> C* IVCORD INTEGER Vertical coordinate *
> C* 0 = NONE *
> C* 1 = PRES *
> C* 2 = THTA *
> C* 3 = HGHT *
>
> So what value does this take for other vertical coordinates, specifically
> for my question Height Above Ground Level (HAGL)??
>
> Thanks
> Mike
>
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