You can select faces according to different criteria.
Surfaces of type:
Select faces according to
their material properties: All types, Opaque or translucent (useful if you
want to check the shading coefficient of windows).
Confine to layer: Pick faces according to a selected layer.
Angles: here you can define the faces to select according to
their orientation and inclination
X-Y plane: Defines the azimuth of the face
(North=0, East=90, South=180, West= 270). You define a range angle, i.e.
topick therange fromSouthEast to
SouthWest enter 135 - 225. To pick from NorthWest to
NorthEast enter 315 (first angle) - 45 (second angle).
Z-Axis Spatial angle: Defines the
inclination of the face (Horizontal=0, Vertical=
90). You define a range angle, i.e.
to pick the range from horizontal to 30 deg, enter 0 -