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1 # Input Parameter Types
2
3 This page describes in more detail some of the input parameter types used
4 in the query functions of the API object.
5
6 ## Place identification
7
8 The [details](NominatimAPI.md#nominatim.api.core.NominatimAPI.details) and
9 [lookup](NominatimAPI.md#nominatim.api.core.NominatimAPI.lookup) functions
10 require references to places in the database. Below the possible
11 types for place identification are listed. All types are dataclasses.
12
13 ### PlaceID
14
15 ::: nominatim.api.PlaceID
16     options:
17         heading_level: 6
18
19 ### OsmID
20
21 ::: nominatim.api.OsmID
22     options:
23         heading_level: 6
24
25 ## Geometry types
26
27 ::: nominatim.api.GeometryFormat
28     options:
29         heading_level: 6
30         members_order: source
31
32 ## Geometry input
33
34 ### Point
35
36 ::: nominatim.api.Point
37     options:
38         heading_level: 6
39         show_signature_annotations: True
40
41 ### Bbox
42
43 ::: nominatim.api.Bbox
44     options:
45         heading_level: 6
46         show_signature_annotations: True
47         members_order: source
48         group_by_category: False
49
50 ## Layers
51
52 Layers allow to restrict the search result to thematic groups. This is
53 orthogonal to restriction by address ranks, which groups places by their
54 geographic extent.
55
56
57 ::: nominatim.api.DataLayer
58     options:
59         heading_level: 6
60         members_order: source
61
62