Enumerations

This module contains enumeration types used throughout the TimeAtlas data model.

Layer Type

class timeatlas.TAEnums.LayerType[source]

Bases: Enum

Enumeration for layer types in the Time Atlas data model.

A layer is a synthetic derivation from a map, either from vectorization of specific content or from the actual digital facsimile of the map. It represents objects that users can manipulate to display as a 2D planar field in the interface.

RASTER: Layer formed from an image stored through tiles in the geoserver

VECTOR: Layer formed of Geometry entities that point to it via part_of_layer field

RASTER = 'raster'

VECTOR = 'vector'

Metadata Tag

class timeatlas.TAEnums.MetadataTag[source]

Bases: Enum

Enumeration for broad categorization of metadata fields.

Tags indicate to the information system a broad category for metadata fields, which is useful for triggering specific facet searches in the interface.

PEOPLE: Metadata related to persons or human entities

PLACE: Metadata related to locations or geographical places

LAND_USE: Metadata related to land usage or professions/activities

PEOPLE = 'PEOPLE'

PLACE = 'PLACE'

LAND_USE = 'LAND_USE'

Type Mappings

The module also provides mapping dictionaries for converting between string representations and enum values:

timeatlas.TAEnums.LAYER_TYPE_TO_ENUM

Mapping dictionary from string layer type names to LayerType enum values.

Used for parsing layer type strings from JSON/dict representations into enum values.

timeatlas.TAEnums.METADATA_TAG_TO_ENUM

Mapping dictionary from string metadata tag names to MetadataTag enum values.

Used for parsing metadata tag strings from JSON/dict representations into enum values.