API field
IAM table rule
How the module's incidence-angle table is read between its points
What it is
The kind of angular-response table the module file declares. It sets how the module's incidence-angle table is read between its points when the incidence-angle method uses the module's curve.
Typical values and how to get it
From the PAN file.
Values
Empty (default): read as Fresnel AR · Fresnel AR = fresnel_ar: linear from 0° to the first point and on the first and last segments, a cubic through four points inside · User profile = user_profile: quadratic on the first and last segments and a cubic through four points inside, held between 0 and 1; at least 3 points · Fresnel normal glass = fresnel_normal: read the same way as Fresnel AR · ASHRAE = ashrae: the table is not read, and the ASHRAE formula with the b₀ of the incidence-angle section applies
API
module.iam_mode