[ncl-talk] Question on ocean/inland water fill

Rick Brownrigg brownrig at ucar.edu
Wed Jul 13 11:47:23 MDT 2022


Not sure why it thinks there's a string involved.

Perhaps use the re-assignment operator  ":="

Or, perhaps wrap the color in a call to rgba_to_color_index:

     res at mpOceanFillColor = rgba_to_color_index((/205.,255.,255.,1.0/))
; note the added opacity value

HTH...
Rick

On Wed, Jul 13, 2022 at 11:36 AM Andrew Kren - NOAA Federal <
andrew.kren at noaa.gov> wrote:

> Hi Rick,
>
> I set the ocean color as this:
>
> res at mpOceanFillColor = (/205.,255.,255./)
>
>
> I got this error message:
>
> fatal:Mul: operation not supported on type (string)
>
>
> Thanks!
>
>
>
> On Wed, Jul 13, 2022 at 1:30 PM Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> Hi Andrew,
>>
>> How did you try to set the ocean color, and what was the error NCL gave?
>>
>> Rick
>>
>> On Wed, Jul 13, 2022 at 10:53 AM Andrew Kren - NOAA Federal via ncl-talk <
>> ncl-talk at mailman.ucar.edu> wrote:
>>
>>> Hi there,
>>>
>>> I have a random question. I am plotting surface smoke from the HRRR but
>>> decided to add color to the ocean and inland water. When I plotted data for
>>> Alaska, since the HRRR domain only extends so far, the "cyan" color I chose
>>> ends up becoming noticeable outside the plotted region. I believe the
>>> reason the color shade is off is because I set a fill opacity less than 1,
>>> which makes the ocean in the plotted region lighter. See plotted image of
>>> the discrepancy.
>>>
>>> My question is, is there a way to get these two to match up without
>>> having to change the fill opacity? Alternatively, I tried to set the ocean
>>> fill color to the RGB triplet of the lighter ocean from the contour fill,
>>> but NCL gave an error.
>>>
>>> Any feedback is appreciated! Thanks.
>>>
>>> --
>>>
>>> Andrew Kren
>>> Meteorologist
>>> NOAA's National Weather Service
>>> Raleigh Forecast Office
>>> 1005 Capability Drive, Suite 300
>>> Raleigh, North Carolina 27606
>>> voice: 919-326-1035
>>> mailto: andrew.kren at noaa.govhttp://www.weather.gov/rah
>>>
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at mailman.ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>
>
> --
>
> Andrew Kren
> Meteorologist
> NOAA's National Weather Service
> Raleigh Forecast Office
> 1005 Capability Drive, Suite 300
> Raleigh, North Carolina 27606
> voice: 919-326-1035
> mailto: andrew.kren at noaa.govhttp://www.weather.gov/rah
>
>
>
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