Category
Message Summary
message Category
A category classifies other objects by means of an "is-a" relationship (for example, a place is-a Restaurant). Categories are grouped in category systems that define the use case for which the classification is appropriate. Categories may form an "is-a" relationship to other categories (potentially in different category systems). The within attribute allows definition of a directed acyclic graph of those relationships between categories.
Example: The place facility type CategorySystem has a name "FACILITY" and description "Facility Type." It has a corresponding Category with name "Restaurant" in ENG, "Εστιατόριο" in GRE with transliteration "Estiatorio", etc. The category identifier is referenced by the place's facility type attribute.
Note: In case of administrative categories, please refer to cartography-metadata layer.
Ex: For category here:cm:administrative-category:907196, refer to cartography-metadata layer and search for here:cm:carto-category:907196.(i.e., administrative-category replaced with carto-category).
Include: meta.proto
Properties
| Field | Type | Label | Description | |
|---|---|---|---|---|
identifier | string | An identifier for the category in the format of domain:system:type:id, for example, "here:cm:category:3455277". This property is unique in a catalog. | ||
category_system_index | uint32 | The 0-based pool index of the category system to which this category is assigned. References category_system in CategoryPartition. Required. | ||
name | Name | repeated | Displayable, localized names of a category system. | |
description | Name | repeated | A textual description of the category. | |
within_category_ref | Reference | repeated | A list of references to other categories with which this category has an "is-a" relationship. | |
