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SUNSHINE AND SHADING DEVICE download (3) - Coggle Diagram
SUNSHINE AND SHADING DEVICE 
Since the position of the sun can be predicted, openings and shading devices can be strategized to eliminate solar radiation on a building,
Shadow Angle expresses the sun's position through Azimuth and Altitude, and utilizes
Horizontal Shadow Angle (HSA)
the difference in azimuth between the sun's position and the orientation of the building face considered. (describes the angle in plan)
Vertical Shadow Angle (VSA)
VSA is measured on a plane perpendicular to the building face (describes the angle made on a vertical plane)
calculating HSA and VSA:
data required
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time, date and month of the year
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