honeybee_radiance.geometry.source module

Radiance Source.

http://radsite.lbl.gov/radiance/refer/ray.html#Source

class honeybee_radiance.geometry.source.Source(identifier, direction=None, angle=0.533, modifier=None, dependencies=None)[source]

Bases: Geometry

Radiance Source.

A source is not really a surface, but a solid angle. It is used for specifying light sources that are very distant. The direction to the center of the source and the number of degrees subtended by its disk are given as follows:

mod source id
0
0
4 xdir ydir zdir angle
Parameters:

  • identifier – Text string for a unique Geometry ID. Must not contain spaces or special characters. This will be used to identify the object across a model and in the exported Radiance files.

  • direction – A vector to set source direction (x, y, z) (Default: (0, 0 ,-1)).

  • angle – Source solid angle (Default: 0.533).

  • modifier – Geometry modifier (Default: None).

  • dependencies – A list of primitives that this primitive depends on. This argument is only useful for defining advanced primitives where the primitive is defined based on other primitives. (Default: [])

Properties:

  • identifier

  • display_name

  • direction

  • angle

  • modifier

  • dependencies

  • values

Usage:

source = Source("test_source", (0, 0, 10), 10)
print(source)
ToString()

Overwrite .NET ToString.

add_dependent(dep)

Add dependent.

duplicate()

Get a copy of this object.

static filter_dict_input(input_dict)

Filter a dictionary of a Primitive to get modifier and dependency objects.

classmethod from_dict(data)[source]

Initialize a Ring from a dictionary.

Parameters:

data – A dictionary in the format below.

{
"type": "source",  # Geometry type
"modifier": {} ,
"identifier": "",  # Geometry identifier
"display_name": "",  # Geometry display name
"direction": {"x": float, "y": float, "z": float},
"angle": float,
"dependencies": []
}
classmethod from_primitive_dict(primitive_dict)[source]

Initialize a Source from a primitive dict.

Parameters:

data – A dictionary in the format below.

{
"modifier": {},  # primitive modifier (Default: None)
"type": "source",  # primitive type
"identifier": "",  # primitive identifier
"display_name": "",  # primitive display name
"values": [],  # values
"dependencies": []
}
classmethod from_string(primitive_string)

Create a Radiance primitive from a string.

If the primitive modifier is not void or it has other dependencies, the modifier and/or dependencies must also be part of the input string.

lock()
to_dict()[source]

Translate this object to a dictionary.

to_radiance(minimal=False, include_modifier=True, include_dependencies=True)

Return full radiance definition.

Parameters:

  • minimal – Boolean to note whether the radiance string should be written in a minimal format (with spaces instead of line breaks). Default: False.

  • include_modifier – Boolean to note whether the modifier of this primitive should be included in the string. Default: True.

  • include_dependencies – Boolean to note whether the dependencies of this primitive should be included in the string. Default: True.

unlock()
GEOMETRYTYPES = {'bubble', 'cone', 'cup', 'cylinder', 'instance', 'mesh', 'polygon', 'ring', 'source', 'sphere', 'tube'}
MATERIALTYPES = {'BRTDfunc', 'BSDF', 'aBSDF', 'antimatter', 'ashik2', 'dielectric', 'glass', 'glow', 'illum', 'interface', 'light', 'metal', 'metal2', 'metdata', 'metfunc', 'mirror', 'mist', 'mixedfunc', 'plasdata', 'plasfunc', 'plastic', 'plastic2', 'prism1', 'prism2', 'spotlight', 'trans', 'trans2', 'transdata', 'transfunc'}
MIXTURETYPES = {'mixdata', 'mixfunc', 'mixpict', 'mixtext'}
MODIFIERTYPES = {'BRTDfunc', 'BSDF', 'aBSDF', 'antimatter', 'ashik2', 'brightdata', 'brightfunc', 'brighttext', 'colordata', 'colorfunc', 'colorpict', 'colortext', 'dielectric', 'glass', 'glow', 'illum', 'interface', 'light', 'metal', 'metal2', 'metdata', 'metfunc', 'mirror', 'mist', 'mixdata', 'mixedfunc', 'mixfunc', 'mixpict', 'mixtext', 'plasdata', 'plasfunc', 'plastic', 'plastic2', 'prism1', 'prism2', 'spotlight', 'texdata', 'texfunc', 'trans', 'trans2', 'transdata', 'transfunc'}
NONEOPAQUETYPES = {'BRTDfunc', 'BSDF', 'aBSDF', 'dielectric', 'glass', 'mist', 'mixfunc', 'prism1', 'prism2', 'trans', 'trans2', 'transdata', 'transfunc'}
PATTERNTYPES = {'brightdata', 'brightfunc', 'brighttext', 'colordata', 'colorfunc', 'colorpict', 'colortext'}
TEXTURETYPES = {'texdata', 'texfunc'}
TYPES = {'BRTDfunc', 'BSDF', 'aBSDF', 'antimatter', 'ashik2', 'brightdata', 'brightfunc', 'brighttext', 'bubble', 'colordata', 'colorfunc', 'colorpict', 'colortext', 'cone', 'cup', 'cylinder', 'dielectric', 'glass', 'glow', 'illum', 'instance', 'interface', 'light', 'mesh', 'metal', 'metal2', 'metdata', 'metfunc', 'mirror', 'mist', 'mixdata', 'mixedfunc', 'mixfunc', 'mixpict', 'mixtext', 'plasdata', 'plasfunc', 'plastic', 'plastic2', 'polygon', 'prism1', 'prism2', 'ring', 'source', 'sphere', 'spotlight', 'texdata', 'texfunc', 'trans', 'trans2', 'transdata', 'transfunc', 'tube'}
property angle

Source solid angle. Default is 0.533.

property dependencies

Get list of dependencies for this primitive.

Additional dependencies can be added with the add_dependent method.

property direction

A vector to set source direction (x, y, z) (Default is (0, 0 ,-1)).

property display_name

Get or set a string for the object name without any character restrictions.

If not set, this will be equal to the identifier.

property identifier

Get or set a text string for the unique primitive identifier.

property is_geometry

Get a boolean noting whether this object is a Radiance geometry.

property is_material

Get a boolean noting whether this object is a material modifier.

property is_mixture

Get a boolean noting whether this object is a mixture modifier.

property is_modifier

Get a boolean indicating whether this object is a Radiance modifier.

Modifiers include materials, mixtures, textures and patterns.

property is_opaque

Get or set a boolean to indicate whether this primitive is opaque.

This property is used to separate opaque and non-opaque geometries as well as modifiers.

property is_pattern

Get a boolean noting whether this object is a pattern modifier.

property is_texture

Get a boolean noting whether this object is a texture modifier.

property is_void

Only true for a void.

property modifier

Get or set an object for the primitive modifier.

property type

Get or set a string for the primitive type.

This should always be lower case in order to match the radiance convention.

property values

Get or set the values of the current primitive as a list of three lists.

Each sub-list represents a line of the primitive’s radiance representation and contain the properties that define the primitive.

Usage:

# This will erase all values except the first line, which has 9 custom items
primitive.values = [
    [0.5, 0.5, 0.5, "/usr/oak.pic", ".", "frac(U)", "frac(V)", "-s", 1.1667],
    [],
    []
]