Spatial Daylight Autonomy
Calculate spacial daylight autonomy (sDA).rnAs per IES-LM-83-12 Spatial Daylight Autonomy (sDA) is a metric describingrnannual sufficiency of ambient daylight levels in interior environments.rnIt is defined as the percent of an analysis area (the area where calcuationsrnare performed -typically across an entire space) that meets a minimumrndaylight illuminance level for a specified fraction of the operating hoursrnper year. The sDA value is expressed as a percentage of area.

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