[McIDAS #UZG-611620]: Specifying RES keyword < 1km?

Hi Kwan,

re:
> Hope that things are fine at your end.  I just wanted to check back with
> you to see whether there is a now a way we can specify RES<1km, or a
> workaround.

My reading of the HELP for IMGREMAP was and still is that you can not
specify a MAG value that is > 1.  Your and my testing of:

DSSERVE ADD GE/IMG AREA 3500 3510 TYP=IMAGE
IMGREMAP GINIEAST/GE4KIR GE/IMG.5 PRO=LAMB 30 50 98 LAT=38 98 RES=1 MAG=2

verified that IMGREMAP would complain about this MAG= setting:

IMGREMAP GINIEAST/GE4KIR GE/IMG.5 PRO=LAMB 30 50 98 LAT=38 98 RES=1 MAG=2
IMGREMAP:
IMGREMAP: Invalid LINE Magnification.
IMGREMAP: first MAG= argument is too big --> 2
IMGREMAP: Must be valid integer value within range -999 thru 1.
IMGREMAP:
IMGREMAP failed, RC=1

You can, however, specify a fractional RES= value if you do not specify
a MAG= value that is greater than 1:

IMGREMAP GINIEAST/GE4KIR GE/IMG.5 PRO=LAMB 30 50 98 LAT=38 98 RES=0.5
IMGREMAP: transformations complete ... begin data move
Transferring AREA data outbound, bytes= 308640
IMGREMAP: Done...

I have no idea if this helps you or not...

> Thanks,
> Kwan
> 
> address@hidden> wrote:
> 
> > Hi Kwan,
> >
> > I had most of a reply to your inquiry below prepared yesterday, but I got
> > distracted, forgot that I had it mostly written, and shutdown my web
> > browser before hitting the send button... groan!
> >
> > re:
> > > The time has come when I want to specify a RES keyword that is less than
> > > 1km.  Is there a way we can do that?
> >
> > I don't think so.  I base this comment on an what I found in the IMGREMAP
> > source file, imgremap.pgm:
> >
> > c --- RES keyword
> > c     RES is in units of km; whole km only
> >       status = mccmddbl('RES',1,'Resolution',1.0D0,0.0D0, 9999.0D0,
> >      &                  res)
> >       if( status.lt.0 ) return
> >
> > The "whole km only" comment would rule out half kilometer resolutions.
> >
> > re:
> > > I tried the following commands.
> > >
> > > DSSERVE ADD GE/IMG AREA 3500 3510 TYP=IMAGE
> > > IMGREMAP GINIEAST/GE4KIR GE/IMG.5 PRO=LAMB 30 50 98 LAT=38 98 RES=1 MAG=2
> > >
> > > But it terminated with these errors.
> > >
> > > imgremap.k: Invalid LINE Magnification.
> > > imgremap.k: first MAG= argument is too big --> 2
> > > imgremap.k: Must be valid integer value within range -999 thru 1.
> >
> > Yup, I was able to reproduce this in my Unidata McIDAS-X v2017 (not yet
> > released) version.  I view the error message being issued as being
> > a red herring/misleading since you did specify a valid value for MAG=.
> > I tried to find exactly where this error message was being generated,
> > but I was unable to do so with a reasonable search of the source code.
> >
> > Sorry for the bad news...
> >
> > Cheers,
> >
> > Tom
> > --
> > ************************************************************
> > ****************
> > Unidata User Support                                    UCAR Unidata
> > Program
> > (303) 497-8642                                                 P.O. Box
> > 3000
> > address@hidden                                   Boulder, CO
> > 80307
> > ------------------------------------------------------------
> > ----------------
> > Unidata HomePage                       http://www.unidata.ucar.edu
> > ************************************************************
> > ****************
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: UZG-611620
> > Department: Support McIDAS
> > Priority: Normal
> > Status: Closed
> > ===================
> > NOTE: All email exchanges with Unidata User Support are recorded in the
> > Unidata inquiry tracking system and then made publicly available through
> > the web.  If you do not want to have your interactions made available in
> > this way, you must let us know in each email you send to us.
> >
> >
> >
> 
> 

Cheers,

Tom
--
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage                       http://www.unidata.ucar.edu
****************************************************************************


Ticket Details
===================
Ticket ID: UZG-611620
Department: Support McIDAS
Priority: Normal
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.