basbruss
Model limited sky visibility and reflective buildings
Checklist
- [X] I have filled out the template to the best of my ability.
- [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
- [X] This issue is not a duplicate feature request of previous feature requests.
Is your feature request related to a problem? Please describe.
While window covers limit the heat getting into a room (especially when mounted outside) they obviously limit the amount of daylight.
Describe the solution you'd like
In some situations it may be possible to avoid this if there is an object outside that casts a shadow e.g. a tree, a building a balcony or a roof over a porch. Although building a full 3D model allowing to calculate shadows is rather complicated, a simplified 2D in spherical coordinates should work as well. There are a few options for users to provide necessary data.
- For every few degrees of azimuth (5-20 I guess) outside a window input the elevation of the actual horizon i.e. with trees an buildings.
- Include "upper" horizon e.g. balcony above the window.
- Input data as 360* by 180 bitmap with an arbitrary pattern of "sky" and "horizon".
Information about the horizon "behind" the window may reflect the fact there is a building in front of our window which reflects sunlight into the window making it necessary to shut the blinds. Modelling reflections is complicated, because it involves not only mirror walled skyscrapers but even an ordinary white matte building on the other side of a street can reflect enough IR to raise temperature in a room. The bitmap format, however, should be able to carry information necessary to control blinds in both cases.
Describe alternatives you've considered
None
Additional context
That's it.
