honeybee_radiance.properties.room module

Room Radiance Properties.

class honeybee_radiance.properties.room.RoomRadianceProperties(host, modifier_set=None)[source]

Bases: object

Radiance Properties for Honeybee Room.

Parameters
  • host – A honeybee_core Room object that hosts these properties.

  • modifier_set – A honeybee ModifierSet object to specify all default modifiers for the Faces of the Room. If None, the Room will use the honeybee default modifier set, which is only representative of typical indoor conditions in the visible spectrum. Default: None.

Properties:
  • host

  • modifier_set

ToString()[source]
apply_properties_from_dict(abridged_data, modifier_sets)[source]

Apply properties from a RoomRadiancePropertiesAbridged dictionary.

Parameters
  • abridged_data – A RoomRadiancePropertiesAbridged dictionary (typically coming from a Model) with the format below.

  • modifier_sets – A dictionary of ModifierSets with identifiers of the sets as keys, which will be used to re-assign modifier_sets.

{
'type': 'RoomRadiancePropertiesAbridged',
'modifier_set': str,  # ModifierSet identifier
}
duplicate(new_host=None)[source]

Get a copy of this object.

Parameters

new_host – A new Room object that hosts these properties. If None, the properties will be duplicated with the same host.

classmethod from_dict(data, host)[source]

Create RoomRadianceProperties from a dictionary.

Note that the dictionary must be a non-abridged version for this classmethod to work.

Parameters
  • data – A dictionary representation of RoomRadianceProperties with the format below.

  • host – A Room object that hosts these properties.

{
'type': 'RoomRadianceProperties',
'modifier_set': {},  # ModifierSet dictionary
}
generate_sensor_grid(x_dim, y_dim=None, offset=1.0, remove_out=False, wall_offset=0)[source]

Get a radiance SensorGrid generated from this Room’s floors.

The output grid will have this room referenced in its room_identifier property. It will also include a Mesh3D object with faces that align with the grid positions under the grid’s mesh property.

Note that the x_dim and y_dim refer to dimensions within the XY coordinate system of the floor faces’s planes. So rotating the planes of the floor faces will result in rotated grid cells.

Parameters
  • x_dim – The x dimension of the grid cells as a number.

  • y_dim – The y dimension of the grid cells as a number. If None, the y dimension will be assumed to be the same as the x dimension. (Default: None).

  • offset – A number for how far to offset the grid from the base face. (Default is 1.0, which will not offset the grid to be 1 unit above the floor).

  • remove_out – Boolean to note whether an extra check should be run to remove sensor points that lie outside the Room volume. Note that this can add significantly to runtime and this check is not necessary in the case that all walls are vertical and all floors are horizontal (Default: False).

  • wall_offset – A number for the distance at which sensors close to walls should be removed. Note that this option has no effect unless the value is more than half of the x_dim or y_dim. (Default: 0).

Returns

A honeybee_radiance SensorGrid generated from the floors of the room. Will be None if the Room has no floors or the criteria for wall_offset and/or remove_out results in all sensors being removed.

Usage:

from honeybee.room import Room
room = Room.from_box(3.0, 6.0, 3.2, 180)
south_face = room[3]
south_face.apertures_by_ratio(0.4, 0.01)
sensor_grid = room.properties.radiance.generate_grid(0.5, 0.5, 1)
generate_sensor_grid_radial(x_dim, y_dim=None, offset=1.0, remove_out=False, wall_offset=0, dir_count=8, start_vector=Vector3D(0.0, - 1.0, 0.0), mesh_radius=None)[source]

Get a SensorGrid of radial directions around positions from the floors.

This type of sensor grid is particularly helpful for studies of multiple view directions, such as imageless glare studies.

The output grid will have this room referenced in its room_identifier property. It will also include a Mesh3D of radial faces around each position under the grid’s mesh property. Note that the x_dim and y_dim refer to dimensions within the XY coordinate system of the floor faces’s planes. So rotating the planes of the floor faces will result in rotated grid cells.

Parameters
  • x_dim – The x dimension of the grid cells as a number.

  • y_dim – The y dimension of the grid cells as a number. If None, the y dimension will be assumed to be the same as the x dimension. (Default: None).

  • offset – A number for how far to offset the grid from the base face. (Default: 1.0, which will not offset the grid to be 1 unit above the floor).

  • remove_out – Boolean to note whether an extra check should be run to remove sensor points that lie outside the Room volume. Note that this can add significantly to runtime and this check is not necessary in the case that all walls are vertical and all floors are horizontal (Default: False).

  • wall_offset – A number for the distance at which sensors close to walls should be removed. Note that this option has no effect unless the value is more than half of the x_dim or y_dim. (Default: 0).

  • dir_count – A positive integer for the number of radial directions to be generated around each position. (Default: 8).

  • start_vector – A Vector3D to set the start direction of the generated directions. This can be used to orient the resulting sensors to specific parts of the scene. It can also change the elevation of the resulting directions since this start vector will always be rotated in the XY plane to generate the resulting directions. (Default: (0, -1, 0)).

  • mesh_radius – An optional number to override the radius of the meshes generated around each sensor. If None, it will be equal to 45% of the x_dim or y_dim (whichever is smaller). Set to zero to ensure no mesh is added to the resulting sensor grids. (Default: None).

Returns

A honeybee_radiance SensorGrid generated from the floors of the room. Will be None if the Room has no floors or the criteria for wall_offset and/or remove_out results in all sensors being removed.

generate_view(direction, up_vector=(0, 0, 1), type='v', h_size=60, v_size=60, shift=None, lift=None)[source]

Get a single view in the center of the room facing a given direction.

Note that the view will be located at the center of the bounding box around the room geometry and not the volume centroid. Also note that the view may not lie inside the room if the room is highly concave.

The output view will have this room referenced in their room_identifier property.

Parameters
  • direction – Set the view direction (-vd) vector to (x, y, z). The length of this vector indicates the focal distance as needed by the pixel depth of field (-pd) in rpict.

  • up_vector – Set the view up (-vu) vector (vertical direction) to (x, y, z) default: (0, 0, 1).

  • type

    A single character for the view type (-vt). Choose from the following.

    • v - Perspective

    • h - Hemispherical fisheye

    • l - Parallel

    • c - Cylindrical panorama

    • a - Angular fisheye

    • s - Planisphere [stereographic] projection

    For more detailed description about view types check rpict manual page: (http://radsite.lbl.gov/radiance/man_html/rpict.1.html)

  • h_size – Set the view horizontal size (-vh). For a perspective projection (including fisheye views), val is the horizontal field of view (in degrees). For a parallel projection, val is the view width in world coordinates.

  • v_size – Set the view vertical size (-vv). For a perspective projection (including fisheye views), val is the horizontal field of view (in degrees). For a parallel projection, val is the view width in world coordinates.

  • shift – Set the view shift (-vs). This is the amount the actual image will be shifted to the right of the specified view. This option is useful for generating skewed perspectives or rendering an image a piece at a time. A value of 1 means that the rendered image starts just to the right of the normal view. A value of -1 would be to the left. Larger or fractional values are permitted as well.

  • lift – Set the view lift (-vl) to a value. This is the amount the actual image will be lifted up from the specified view.

Returns

A honeybee_radiance View generated in the center of the Room.

Usage:

from honeybee.room import Room
room = Room.from_box(3.0, 6.0, 3.2, 180)
south_face = room[3]
south_face.apertures_by_ratio(0.4, 0.01)
view = room.properties.radiance.generate_view((0, -1, 0))
to_dict(abridged=False)[source]

Return Room radiance properties as a dictionary.

Parameters

abridged – Boolean for whether the full dictionary of the Room should be written (False) or just the identifier of the the individual properties (True). Default: False.

property host

Get the Room object hosting these properties.

property modifier_set

Get or set the Room ModifierSet object.

If not set, it will be the Honeybee default generic ModifierSet.