Enumeration to define the azimuth of a surface for the room model.
 For example, if an exterior wall is South oriented, i.e., its outside-facing
surface is towards South, use 
 Buildings.HeatTransfer.Types.Azimuth.S.
| Name | Description | 
|---|---|
| S=0 | Azimuth for an exterior wall whose outer surface faces south | 
| E=-Modelica.Constants.pi/2 | Azimuth for an exterior wall whose outer surface faces east | 
| N=Modelica.Constants.pi | Azimuth for an exterior wall whose outer surface faces north | 
| W=+Modelica.Constants.pi/2 | Azimuth for an exterior wall whose outer surface faces west | 
constant Modelica.SIunits.Angle S = 0 "Azimuth for an exterior wall whose outer surface faces south";
constant Modelica.SIunits.Angle E = -Modelica.Constants.pi/2 "Azimuth for an exterior wall whose outer surface faces east";
constant Modelica.SIunits.Angle N = Modelica.Constants.pi "Azimuth for an exterior wall whose outer surface faces north";
constant Modelica.SIunits.Angle W = +Modelica.Constants.pi/2 "Azimuth for an exterior wall whose outer surface faces west";