paleolimbot opened a new pull request, #1039:
URL: https://github.com/apache/sedona-db/pull/1039
Adds ST_HausdorffDistance backed by GEOS
```python
import sedona.db
import pandas as pd
sd = sedona.db.connect()
sd.sql("""
SELECT ST_HausdorffDistance(
ST_GeomFromText('LINESTRING (0 0, 1 1 1)'),
ST_GeomFromText('LINESTRING (0.5 0, 1 0, 1.5 1)')
) AS h
""").show()
# ┌────────────────────┐
# │ h │
# │ float64 │
# ╞════════════════════╡
# │ 0.7071067811865476 │
# └────────────────────┘
densify_values = pd.DataFrame(
{
"l": ["LINESTRING (130 0, 0 0, 0 150)"] * 4,
"r": ["LINESTRING (10 10, 10 150, 130 10)"] * 4,
"dens": [0.1, 0.25, 0.75, 1.0],
}
)
sd.create_data_frame(densify_values).to_view("t", overwrite=True)
sd.sql("""
SELECT dens, ST_HausdorffDistance(
ST_GeomFromText(l),
ST_GeomFromText(r),
dens
) as h
FROM t
""").show()
# ┌─────────┬────────────────────┐
# │ dens ┆ h │
# │ float64 ┆ float64 │
# ╞═════════╪════════════════════╡
# │ 0.1 ┆ 70.0 │
# ├╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
# │ 0.25 ┆ 70.0 │
# ├╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
# │ 0.75 ┆ 14.142135623730951 │
# ├╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
# │ 1.0 ┆ 14.142135623730951 │
# └─────────┴────────────────────┘
```
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