cityjson-index

Python bindings for the cityjson-index Rust crate — a SQLite-backed random-access index over CityJSONSeq streams for CityJSON 2.0 data.

The distribution name is cityjson-index; the import name is cityjson_index. The package ships its own prebuilt native library (built from the Rust C-ABI core) and wraps it with ctypes — no Rust toolchain is required on the user side. cityjson-index also depends on cityjson-lib==0.8.0 at runtime; each package ships its own native library (there is no shared .so).

Install

pip install cityjson-index

Prebuilt wheels are published for:

  • Linux x86_64 (manylinux)
  • macOS x86_64 and arm64
  • Windows AMD64

Python 3.11, 3.12, and 3.13 are supported.

Quick start

from cityjson_index import OpenedIndex

with OpenedIndex.open("city.idx") as index:
    package = index.get("building-42")
    print(package.id, len(package.payload))

Filtered reads

from cityjson_index import PackageFilter, PackageFilterSummary, LodSelection, OpenedIndex

with OpenedIndex.open("dataset") as index:
    cityobjects = index.lookup_cityobject_refs("building-42")
    refs = index.package_refs_for_cityobject(cityobjects[0])
    filter = PackageFilter(
        cityobject_types={"Building"},
        default_lod=LodSelection.HIGHEST,
        lods_by_type={"Building": LodSelection.Exact("2.0")},
    )

    summary = PackageFilterSummary()
    for package in index.read_filtered_packages(refs, filter):
        summary.add(package.diagnostics)
        print(package.model.summary().model_type)

    summary.ensure_requested_lods_available(filter)

Links

License

Dual-licensed under MIT or Apache-2.0, at your option.

Project links

Key dates

PyPI data
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  • Released:
Newer release available (0.11.0)

1 maintainer

PyPI data
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Avatar for balazsdukai from gravatar.com balazsdukai

Credits

Author: Balázs Dukai

License expression

MIT OR Apache-2.0
View SPDX License List

Requires

Python >=3.11

Tags

cityjson 3d gis geospatial sqlite index

Classifiers

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0.11.0

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0.3.0

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