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20030819: changing radar enhancements in GARP in GEMPAK 5.6j

Robert,
If you are using 24 bit display, you have to redraw the image after changing
the enhancement.

With 8 bit (indexed) displays, the LUT could change the indexes immediately.
Since direct and true color mappings are done when drawn, the lut should be set
before you draw the image.

Note that 24 bit color support was introduced in 5.6.h.

Steve Chiswell

On Tue, 19 Aug 2003, Robert Mullenax wrote:

>
> Under GEMPAK 5.6c through 5.6h I made several different radar enhancements
> (NIDS) which took
> out (set to black) different levels..so one could look at everything >
> 30dBz, >40dBz..etc in GARP
>
> I put the tables in $NAWIPS/gempak/tables/luts and added them to the list in
> sat_enhance.tbl
> in $GARPHOME/tables.
>
> However, when I did the same thing in GEMPAK 5.6j in GARP (both Unidata
> binary and a locally
> compiled version) I can't change the enhacement of any NIDS radar images no
> matter what
> enhancement I use..either mine or any existing one.
>
> However, it works fine in NMAP2.
>
> Does anyone have any ideas?
>
> Thanks,
> Robert
>
> Robert Mullenax
> Weather Systems Administrator
> Universal Weather and Aviation
>