This partial function defines the inputs and output of the function for opening area calculation.
partial function PartialOpeningArea extends Modelica.Icons.Function; input Modelica.Units.SI.Length lenAxs(min = 0) "Length of the hinged axis, the axis should be parallel to a window frame"; input Modelica.Units.SI.Length lenAxsToFrm(min = 0) "Distance from the hinged axis to the frame across the opening area"; input Modelica.Units.SI.Length width(min = 0) "Opening width of window sash"; output Modelica.Units.SI.Area A(min = 0) "Opening area"; end PartialOpeningArea;