[GRASS-user] Raster null values unchanged by r.null

[Eric Patton]

Hi Vero,

Where you have a properly working system, would you be able to file that bug report? I've installed Grass 8.0 and I'm still having the rendering issue of null values in the gui.

--
Eric Sent with [ProtonMail](https://protonmail.com/) Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Friday, October 22nd, 2021 at 08:25, Veronica Andreo <veroandreo at gmail.com> wrote:

> Hi Eric,
>
> I've tested with GRASS 7.8.5, NC location, setting null values with the GUI, refreshing the map display and all works just fine, values set to null are no longer visible.
>
> What doesn't work for me is removing the null bitmap neither from the GUI nor the terminal (and it does not work in GRASS 7.8.6 nor in 8.0 - this one deserves a bug report).
>
> My system:
> GRASS version: 7.8.5
> Build date: 2021-02-08
> Build platform: x86_64-redhat-linux-gnu
> GDAL: 3.2.1
> PROJ: 7.2.1
> GEOS: 3.9.0
> SQLite: 3.34.1
> Python: 3.9.7
> wxPython: 4.0.7
>
> Vero
>
> El jue, 21 oct 2021 a las 22:00, Eric Patton via grass-user (<grass-user at lists.osgeo.org>) escribió:
>
>> Hi Ken,
>>
>> This is on a native Grass raster, not through a file linked by r.external. It seems to be some problem with the rendering/refreshing in the WXGUI.
>>
>> ~ Eric.
>>
>> Sent from ProtonMail for iOS
>>
>> On Wed, Oct 20, 2021 at 6:43 PM, Ken Mankoff <mankoff at gmail.com> wrote:
>>
>>> I think r.null does not work on external (r.external) files. Make sure this is not the issue.
>>>
>>> Please excuse brevity. Sent from tiny pocket computer with non-haptic feedback keyboard.
>>>
>>> On Wed, Oct 20, 2021, 07:02 Eric Patton via grass-user <grass-user at lists.osgeo.org> wrote:
>>>
>>>> I'm encountering some strange behaviour from r.null - when I use the setnull parameter to assign a particular value to be null in a raster, the raster areas just set to null are still visible and coloured according to their previous values when I refresh the display in the gui map window. Querying these values shows they haven't been set to null.
>>>>
>>>> Using version 7.8.5 on Linux Mint. Can anyone confirm?
>>>>
>>>> --
>>>> Eric
>>>>
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