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Pre-computation of 1degDelft TOF and readme images
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fbiljecki committed Jan 19, 2015
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10 changes: 8 additions & 2 deletions README.md
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Expand Up @@ -3,6 +3,8 @@ Solar3Dcity

A simple utility to estimate the solar potential of building roof surface(s) from a 3D city model stored in CityGML.

![solar3dcity-header](http://3dgeoinfo.bk.tudelft.nl/biljecki/github/solar3dcity/ov-solar-nw-n-legend-logo-small.png)

The scripts compute the solar irradiance data thanks to the [solpy](https://github.com/nrcharles/solpy) library.

#### Please note that this is an experimental research software prototype under continuous development.
Expand Down Expand Up @@ -63,6 +65,8 @@ The magnitude of the three radiation components is different depending on the da

The solar radiation differs depending on the tilt and orientation of a surface. The plot below show that TOF (tilt-orientation-factors) for Delft in the Netherlands. It is visible that the difference between the irradiance on differently tilted and oriented surfaces is significant.

![TOF-plot](http://3dgeoinfo.bk.tudelft.nl/biljecki/github/solar3dcity/TOF-plot.png)

### Summing it up

The global solar irradiance on a tilted and oriented surface at location can be estimated from the following components of the surface:
Expand Down Expand Up @@ -230,7 +234,7 @@ python dailyplot.py

You will get something like this:

![Daily-plot](http://3dgeoinfo.bk.tudelft.nl/biljecki/code/img/solar-dailyplot.png)
![Daily-plot](http://3dgeoinfo.bk.tudelft.nl/biljecki/github/solar3dcity/solar-dailyplot.png)

This is the magnitude of the radiation during the day. Solar3Dcity integrates these values over the year in order to estimate the yearly irradiance.

Expand Down Expand Up @@ -270,7 +274,9 @@ The results of the computations are added directly to the `<gml:Polygon>` and `<
Visualisation possibilities
---------------------

This utility stores the data of the solar estimations directly in the CityGML file. However, data can be visualised by converting this to an enhanced OBJ with my utility [CityGML2OBJs](https://github.com/tudelft3d/CityGML2OBJs). An example is shown in the beginning of this file.
This utility stores the data of the solar estimations directly in the CityGML file. However, data can be visualised by converting this to an enhanced OBJ with my utility [CityGML2OBJs](https://github.com/tudelft3d/CityGML2OBJs). An example is shown in the beginning of this file and here below.

![Daily-plot](http://3dgeoinfo.bk.tudelft.nl/biljecki/github/solar3dcity/zoom-solar-nw-legend-small.png)


Contact me for questions and feedback
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