Description: "Enumeration for surface tilt"

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## Buildings.Types.Tilt

Enumeration for surface tilt

### Information

numeration to define the tilt of a surface. For example, for a construction that is a floor, use `Buildings.Types.Tilt.Floor`.

Note that a ceiling has a tilt of 0, and also the solar collector models in Buildings.Fluid.SolarCollectors require a tilt of 0 if they are facing straight upwards. This is correct because the solar irradiation on a ceiling construction is on the other-side surface, which faces upwards toward the sky. Hence, a construction is considered a ceiling from the view point of a person standing inside a room.

Extends from Modelica.Icons.TypesPackage (Icon for packages containing type definitions).

### Package Content

Name | Description
--- | ---
Ceiling=0 | Tilt for ceiling
Floor=Modelica.Constants.pi | Tilt for floor
Wall=Modelica.Constants.pi/2 | Tilt for wall

### Types and constants

      constant Modelica.SIunits.Angle Ceiling = 0 "Tilt for ceiling";

      constant Modelica.SIunits.Angle Floor =   Modelica.Constants.pi
      "Tilt for floor";

      constant Modelica.SIunits.Angle Wall =    Modelica.Constants.pi/2
      "Tilt for wall";