| Name | Description |
|---|---|
| AngleToWidth | Conversion from the hinged opening angle to hinged opening width |
| CoeffOpeningAreaDIN16798 | Coefficient for hinged opening area according to DIN CEN/TR 16798-8 (DIN SPEC 32739-8) |
| EffectiveOpeningArea | Calculation of the effective opening area |
| EquivalentOpeningArea | Calculation of the equivalent opening area |
| GeometricOpeningArea | Calculation of the geometric opening area |
| PartialOpeningArea | Calculation of hinged-opening area by rectangular windows, unspecified types |
| ProjectiveOpeningArea | Calculation of the projective opening area |
| WidthToAngle | Conversion from the hinged opening width to hinged opening angle |