[QGIS-Developer] [Qgis-user] Sunrise, Sunset, Lunar Calculations

[C Hamilton]

These seem to be basically what I am looking for, but they are an external
process that saves the results to a file. It would be nice to simply have a
method that returns the result. So now I am not quite sure how to proceed.
GRASS probably has the functionality, but not in the form I would like.

Cheers,

Calvin

On Fri, Jun 28, 2019 at 9:25 AM Christian Yrrman <yrrman at gmail.com> wrote:

> Hi Calvin, Martin,
>
>
> forgot to say there are also grass functions to do this, namely
>
> r.sunhours
> r.sunmask.datetime
> r.sunmask.position
>
> see
> https://github.com/OSGeo/grass/tree/master/raster/r.sunmask
> for reference.
>
> With this you can also get shadow areas from dems.
>
> Best
>
>
> Chris
>
>
>
>
> On Fri, Jun 28, 2019 at 9:53 AM Martin Dobias <wonder.sk at gmail.com> wrote:
>
>> Hi Calvin
>>
>> On Thu, Jun 27, 2019 at 9:15 PM C Hamilton <adenaculture at gmail.com>
>> wrote:
>> >
>> > How much interested would there be for a plugin to display sunrise and
>> sunset information for a particular location on the earth's surface. Is
>> anyone already working on this? There doesn't seem to be a capability for
>> this, but perhaps I have missed it. Are there other astronomical
>> calculations that would be worth while in QGIS? (Moon asimuth/position,
>> phase)
>>
>> Just adding another +1 vote to have something like this in QGIS :-) At
>> some point I would like to look into rendering of shadows of buildings
>> in QGIS 3D - and for this it would be important to have the ability to
>> calculate sun position.
>>
>> Cheers
>> Martin
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