topojson_rs 0.2

Implementation of topojson-client in Rust for creating native Python extension.

Topojson Client in Rust

Implementation of topojson-client in Rust for creating native Python extension.

• Documentation

Installation

pip install topojson_rs

Development

1. You need cargo installed and maturin.
2. Create a virtual environment
3. Build the package:

maturin develop --release

4. You should be able to import topojson.

Run tests

cargo test

Benchmarks

Current benchmark (see benchmark.py, files land, states and counties available here and fork of pytopojson for correct results).

	Reading performances			Computation performances
Function + Data	ratio	python	rust	ratio	python	rust	Same ?
Feature Land	2.499	1.359 ms	0.544 ms	19.277	2.154 ms	0.112 ms	True
Feature States	2.163	2.856 ms	1.320 ms	41.704	6.581 ms	0.158 ms	True
Feature Counties	1.729	19.520 ms	11.289 ms	39.676	87.367 ms	2.202 ms	True
Mesh Land	2.234	1.149 ms	0.514 ms	18.909	2.713 ms	0.143 ms	True
Mesh States	1.914	2.529 ms	1.321 ms	16.568	6.325 ms	0.382 ms	True
Mesh Counties	1.473	16.426 ms	11.148 ms	10.043	87.903 ms	8.753 ms	True
Merge Land	2.096	1.195 ms	0.570 ms	18.816	3.711 ms	0.197 ms	True
Merge States	1.923	2.631 ms	1.368 ms	13.350	5.605 ms	0.420 ms	True
Merge Counties	1.432	15.946 ms	11.133 ms	7.546	33.093 ms	4.385 ms	True
Bbox Land	1.980	3.121 ms	1.576 ms	27.834	2.555 ms	0.092 ms	True
Bbox States	1.145	5.276 ms	4.608 ms	25.082	5.070 ms	0.202 ms	True
Bbox Counties	1.556	16.742 ms	10.759 ms	61.178	15.506 ms	0.253 ms	True
Neighbors Land	2.354	1.197 ms	0.508 ms	0.798	0.071 ms	0.089 ms	True
Neighbors States	1.957	2.636 ms	1.347 ms	2.704	0.558 ms	0.206 ms	True
Neighbors Counties	1.515	16.174 ms	10.677 ms	5.033	20.601 ms	4.093 ms	True
Quantize Land	2.359	1.201 ms	0.509 ms	30.167	2.851 ms	0.095 ms	True
Quantize States	1.861	2.492 ms	1.339 ms	27.742	7.166 ms	0.258 ms	True
Quantize Counties	1.711	16.913 ms	9.883 ms	20.389	48.865 ms	2.397 ms	True