- pygplates.reconstruct(reconstructable_features, rotation_model, reconstructed_geometries, reconstruction_time[, anchor_plate_id][, **output_parameters])
Reconstruct regular geological features, motion paths or flowlines to a specific geological time.
FeatureCollection, or string, or
Feature, or sequence of
Feature, or sequence of any combination of those four types) – the features to reconstruct as a feature collection, or filename, or feature, or sequence of features, or a sequence (eg,
tuple) of any combination of those four types
FeatureCollectionor string or sequence of
FeatureCollectioninstances and/or strings) – A rotation model or a rotation feature collection or a rotation filename or a sequence of rotation feature collections and/or rotation filenames
reconstructed_geometries (string or
list) – the
reconstructed feature geometries(default) or
reconstructed motion pathsor
reconstructed flowlines(depending on the optional keyword argument reconstruct_type - see output_parameters table) are either exported to a file (with specified filename) or appended to a Python
list(note that the list is not cleared first and note that the list contents are affected by group_with_feature - see output_parameters table)
reconstruction_time (float or
GeoTimeInstant) – the specific geological time to reconstruct to
anchor_plate_id (int) – The anchored plate id used during reconstruction. Defaults to the default anchor plate of rotation_model.
output_parameters – variable number of keyword arguments specifying output parameters (see table below)
OpenFileForReadingError if any input file is not readable (when filenames specified)
OpenFileForWritingError if reconstructed_geometries is a filename and it is not writeable
FileFormatNotSupportedError if any input file format (identified by any reconstructable and rotation filename extensions) does not support reading (when filenames specified), or if reconstructed_geometries is a filename and it is not supported for writing
The following optional keyword arguments are supported by output_parameters:
ReconstructType.feature_geometry: only reconstruct regular features (not motion paths or flowlines), this generates
reconstructed feature geometries
ReconstructType.motion_path: only reconstruct motion path features, this generates
reconstructed motion paths
ReconstructType.flowline: only reconstruct flowline features, this generates
FalseGroup reconstructed geometries with their feature.This can be useful when a feature has more than one geometry and hence more than one reconstructed geometry.reconstructed_geometries then becomes a list of tuples where each tuple contains a
listof reconstructed geometries.
Only applies when reconstructed_geometries is a
listbecause exported files are always grouped with feature.
Any ReconstructType can be grouped.
TrueWrap/clip reconstructed geometries to the dateline (currently ignored unless exporting to an ESRI Shapefile format file).Only applies when exporting to a file (ESRI Shapefile).
features, in reconstructable_features, that match the optional keyword argument reconstruct_type (see output_parameters table) are reconstructed. This also determines the type of reconstructed geometries output in reconstructed_geometries which are either
reconstructed feature geometries(default) or
reconstructed motion pathsor
Notereconstructed_geometries can be either an export filename or a Python
list.In the latter case the reconstructed geometries (generated by the reconstruction) are appended to the Python
list(instead of exported to a file).And if group_with_feature (see output_parameters table) is
Truethen the list contains tuples that group each
featurewith a list of its reconstructed geometries.
The reconstructed_geometries are output in the same order as that of their respective features in reconstructable_features (the order across feature collections is also retained). This happens regardless of whether reconstructable_features and reconstructed_geometries include files or not.
The following export file formats are currently supported:
Export File Format
‘.geojson’ or ‘.json’
NoteWhen exporting to a file, the filename extension of reconstructed_geometries determines the export file format.If the export format is ESRI Shapefile then the shapefile attributes from reconstructable_features will only be retained in the exported shapefile if there is a single reconstructable feature collection (where reconstructable_features is a single feature collection or file, or sequence containing a single feature collection or file). This is because shapefile attributes from multiple input feature collections are not easily combined into a single output shapefile (due to different attribute field names).
rotation_model can be either a
RotationModelor a rotation
FeatureCollectionor a rotation filename or a sequence (eg,
tuple) containing rotation
FeatureCollectioninstances or filenames (or a mixture of both). When a
RotationModelis not specified then a temporary one is created internally (and hence is less efficient if this function is called multiple times with the same rotation data).
If any filenames are specified then
FeatureCollectionis used internally to read feature collections from those files.
Reconstructing a file containing regular reconstructable features to a shapefile at 10Ma:
pygplates.reconstruct('volcanoes.gpml', 'rotations.rot', 'reconstructed_volcanoes_10Ma.shp', 10)
Reconstructing multiple files containing regular reconstructable features to a list of reconstructed feature geometries at 10Ma:
reconstructed_feature_geometries =  pygplates.reconstruct(['continent_ocean_boundaries.gpml', 'isochrons.gpml'], rotation_model, reconstructed_feature_geometries, 10)
reconstructed_features =  pygplates.reconstruct(['continent_ocean_boundaries.gpml', 'isochrons.gpml'], rotation_model, reconstructed_features, 10, group_with_feature=True) for feature, feature_reconstructed_geometries in reconstructed_features: # Note that 'feature' is the same as 'feature_reconstructed_geometry.get_feature()'. for feature_reconstructed_geometry in feature_reconstructed_geometries: ...
Reconstructing a file containing flowline features to a shapefile at 10Ma:
pygplates.reconstruct('flowlines.gpml', rotation_model, 'reconstructed_flowlines_10Ma.shp', 10, reconstruct_type=pygplates.ReconstructType.flowline)
Reconstructing a file containing flowline features to a list of reconstructed flowlines at 10Ma:
reconstructed_flowlines =  pygplates.reconstruct('flowlines.gpml', rotation_model, reconstructed_flowlines, 10, reconstruct_type=pygplates.ReconstructType.flowline)
Reconstructing regular reconstructable features to a shapefile at 10Ma:
pygplates.reconstruct(pygplates.FeatureCollection([feature1, feature2]), rotation_model, 'reconstructed_features_10Ma.shp', 10)
Reconstructing a list of regular reconstructable features to a shapefile at 10Ma:
pygplates.reconstruct([feature1, feature2], rotation_model, 'reconstructed_features_10Ma.shp', 10)
Reconstructing a single regular reconstructable feature to a list of reconstructed feature geometries at 10Ma:
reconstructed_feature_geometries =  pygplates.reconstruct(feature, rotation_model, reconstructed_feature_geometries, 10) # assert(reconstructed_feature_geometries.get_feature().get_feature_id() == feature.get_feature_id())