Thank you for your great contribution in the field.
I am in a stage of validation of my model using a solar simulator. I need to define the position of a sky patch/element at a specific hour. According to ISO 15469:2004,
"The position of an arbitrary sky element is defined by its zenith angle, Z, and by the azimuth difference between the element and the sun, [α - αs]. If Zs is the zenith angle of the sun, the angular distance between the element and the sun is:
By using LadyBug_SunPath component we can get the azimuth and the altitude/elevation of the sun. And by LadyBug_SkyDome component we can visualize the sky patches for certain hour, however, I could not find a way to get the azimuth or the altitude of the related sky patch for that hour so I can define the sky position by the above equation.
How can I find either the azimuth or the altitude of the sky patch, theoretically by calculations, please?
Your support is highly appreciated.