pygplates.GpmlPropertyDelegate

class pygplates.GpmlPropertyDelegate

Bases: PropertyValue

A property value that represents a reference, or delegation, to a property in another feature.

A GpmlPropertyDelegate can also be pickled.

Added in version 0.21.

Changed in version 0.42: Added pickle support.

__init__(feature_id, property_name, property_type)

Create a reference, or delegation, to a property in another feature.

Parameters:

feature_id (FeatureId) – the referenced feature
property_name (PropertyName) – the name of the referenced property
property_type (a class object of a property type (derived from PropertyValue) except Enumeration and time-dependent wrappers GpmlConstantValue, GpmlIrregularSampling and GpmlPiecewiseAggregation.) – the type of the referenced property

property_delegate = pygplates.GpmlPropertyDelegate(
    referenced_feature.get_feature_id(),
    pygplates.PropertyName.gpml_center_line_of,
    pygplates.GmlLineString)

Methods

`__init__`(feature_id, property_name, ...)	Create a reference, or delegation, to a property in another feature.
`accept_visitor`(visitor)	Accept a property value visitor so that it can visit this property value.
`clone`()	Create a duplicate of this property value (derived) instance, including a recursive copy of any nested property values that this instance might contain.
`get_feature_id`()	Returns the feature ID of the feature containing the delegated property.
`get_geometry`()	Extracts the `geometry` if this property value contains a geometry.
`get_property_name`()	Returns the property name of the delegated property.
`get_property_type`()	Returns the property type of the delegated property.
`get_value`([time=0])	Extracts the value, of this possibly time-dependent property value, at the reconstruction time.

get_feature_id()

Returns the feature ID of the feature containing the delegated property.

Return type:: FeatureId

get_property_name()

Returns the property name of the delegated property.

Return type:: PropertyName

get_property_type()

Returns the property type of the delegated property.

For example, it might return pygplates.GmlLineString which is a class object (not an instance).

Return type:: a class object of the property type (derived from PropertyValue)