[gradsusr] Strange issues with GRADS displaying a value of 100% across small grid

[Davide Sacchetti]

grads answered Cannot contour grid - all undefined value either over
the entire domain or 'set lon 151 153' 'set lat -29 -28'

On Fri, 2019-09-20 at 06:28 +1200, Howard Staines wrote:
> Hi Davide
> 
> The area you are displaying is a 220km x 110km roughly ... it could
> be very cloudy?
> 
> -----Original Message-----
> From: gradsusr <gradsusr-bounces at gradsusr.org> On Behalf Of Davide
> Sacchetti
> Sent: Friday, September 20, 2019 4:04 AM
> To: gradsusr at gradsusr.org
> Subject: Re: [gradsusr] Strange issues with GRADS displaying a value
> of 100% across small grid
> 
> it's simple
> don't get lost in your script, just open the file and display the
> field. You'll get:
> 
> ga-> display TCDCclm
> Cannot contour grid - all undefined values 
> ga-> 
> 
> so data are not defined
> bye
> Davide
> 
> 
> On Thu, 2019-09-19 at 17:07 +1000, Mike Manning wrote:
> > Hi guys,
> >  
> > I have a very strange issue with Grads (all versions).  I have the 
> > following grads script which you can test below:
> >  
> > 'sdfopen
> > https://nomads.ncep.noaa.gov:9090/dods/gfs_0p25_1hr/gfs20190919/gfs_0p25_1hr_00z'
> > 'set t 47'
> > 'set lon 151 153'
> > 'set lat -29 -28'
> >  
> > 'set rgb 45 254 254 254'
> > 'set rgb 46 0 70 255'
> > 'set rgb 48 40 100 255'
> > 'set rgb 50 80 130 255'
> > 'set rgb 52 120 160 255'
> > 'set rgb 54 160 190 255'
> > 'set rgb 56 200 220 255'
> > 'set rgb 58 240 250 255'
> > 'set rgb 60 255 205 95'
> > 'set rgb 62 255 155 45'
> > 'set rgb 63 255 130 20'
> > 'set rgb 64 255 105 0'
> > 'set rgb 65 255 80 0'
> > 'set rgb 66 255 55 0'
> > 'set rgb 67 255 30 0'
> > 'set rgb 68 255 5 0'
> > 'set rgb 69 230 0 0'
> > 'set rgb 70 205 0 0'
> > 'set rgb 71 185 0 0'
> > 'set rgb 72 160 0 0'
> > 'set rgb 73 135 0 0'
> >  
> > 'set clevs 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 
> > 100'
> > 'set ccols 45 46 48 50 52 54 56 58 60 62 63 64 65 66 67 68 69 70 71
> > 72 73'
> >  
> > 'set gxout shaded'
> > 'set csmooth on'
> > 'set cmin 5'
> > 'set cmax 100'
> > 'display TCDCclm'
> >  
> > 'printim cloudtotal.png white'
> > 'quit'
> >  
> > This doesn’t seem to display anything at all except a white image..
> > if you change the lon from ‘set lon 151 153’ to ‘set lon 151 154’
> > then it works fine as it has more than 1 value.. it’s like Grads 
> > doesn’t like a value of 100? I’m sure I’ve set my ccols and clevs 
> > correctly.
> >  
> > Cheers, Mike
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr