forrestguice
commented
5 years ago thank you for this great and very practical application.
Thank you, I'm really glad its useful for you, that's high praise :)
I was wondering if it would be possible to add the Polar azimuthal equidistant projection map please?
I assume you've already run into the azimuthal projection by long-pressing the map three times. Adding this to the widget and also making it more prominent in the app (no longer hidden as an easter egg) is definitely doable.
the possibility to generate maps of day and night with the position of the moon and the sun
This sounds like an interesting feature. The existing code is mostly there. For example writing a utility that does what is needed wouldn't be too big a step. I'll look into adding something like this as a test script (and refactor as necessary), so this is at least possible. Including it directly in the app is a little bit trickier, but only because I'm stickler when it comes to UI, and still need to fully imagine it before making it concrete ;)
If you are interested in the workings of the code, the map stuff is all confined to https://github.com/forrestguice/SuntimesWidget/tree/master/app/src/main/java/com/forrestguice/suntimeswidget/map
The algorithm this code implements is described here.. https://gis.stackexchange.com/questions/17184/method-to-shade-or-overlay-a-raster-map-to-reflect-time-of-day-and-ambient-light .. In a nutshell, the code basically maps lat/lon coordinates to a bitmap's grid of pixels, then performs a dot product against each position's "normal" and the vector pointing to the sun. The sun is shining at all coordinates where the vector projection is greater than 0. The final step is to draw something there (e.g. the semi-transparent shadow color at pixels for values less 0).
Makeonenine
First of all I would like to thank the developers of this software very much, thank you for this great and very practical application.
I was wondering if it would be possible to add the Polar azimuthal equidistant projection map please?
And also would it be possible to have the possibility to generate maps of day and night with the position of the moon and the sun and their respective lighting on the earth for a given period of time with the desired time interval?
For example I would like to generate all the images of the day and night with the position of the moon and the sun and their respective lighting for 1 year with an interval of 1 hour between each map. The result would be 24hx365 = 8760 pictures (with which I could make a video animation as an example).
Does anyone know any software to do the same thing, please? This is because timeanddate does not offer the possibility of downloading everything at once and it does not combine sun and moon lighting on the same map. https://www.timeanddate.com/worldclock/sunearth.html https://www.timeanddate.com/astronomy/moon/light.html
Thank you very much. Good continuation #