Initial commit: 200feet pipeline, docker packaging, and static site

2026-07-02 00:38:32 -04:00
commit df18210492
31 changed files with 7188 additions and 0 deletions
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+"""One-time prep: load GeoJSONs, reproject to TN State Plane US Feet, cache to parquet."""
+from __future__ import annotations
+import sys
+import time
+from pathlib import Path
+
+import geopandas as gpd
+
+ROOT = Path(__file__).resolve().parent.parent
+GIS = ROOT / "gis"
+CACHE = ROOT / "cache"
+CACHE.mkdir(exist_ok=True)
+
+TN_FT = "EPSG:2274"  # NAD83 / Tennessee State Plane, US Survey Feet
+
+
+def prep(name: str, src: Path, keep_cols: list[str]) -> None:
+    out = CACHE / f"{name}.parquet"
+    if out.exists():
+        print(f"[skip] {name} already cached -> {out}")
+        return
+    t0 = time.time()
+    print(f"[read] {src.name} ...", flush=True)
+    gdf = gpd.read_file(src)
+    print(f"  loaded {len(gdf):,} features in {time.time()-t0:.1f}s; crs={gdf.crs}")
+    keep_cols = [c for c in keep_cols if c in gdf.columns]
+    gdf = gdf[keep_cols + ["geometry"]]
+    t1 = time.time()
+    print(f"[reproject] -> {TN_FT}", flush=True)
+    gdf = gdf.to_crs(TN_FT)
+    # Drop Z dimension if present (force XY)
+    try:
+        gdf["geometry"] = gpd.GeoSeries(
+            [g if g is None or not g.has_z else _drop_z(g) for g in gdf.geometry],
+            crs=gdf.crs,
+        )
+    except Exception:
+        pass
+    print(f"  reprojected in {time.time()-t1:.1f}s")
+    gdf.to_parquet(out)
+    print(f"[wrote] {out} ({out.stat().st_size/1e6:.1f} MB)")
+
+
+def _drop_z(geom):
+    from shapely.ops import transform
+    return transform(lambda x, y, z=None: (x, y), geom)
+
+
+def main() -> None:
+    prep(
+        "zoning",
+        GIS / "Zoning.geojson",
+        keep_cols=["OBJECTID", "ZONECLASS", "ZONEDESC", "ACRES_CALC"],
+    )
+    prep(
+        "parcels",
+        GIS / "Parcels.geojson",
+        keep_cols=[
+            "OBJECTID", "PARID", "GISLINK", "ADDRESS", "STREET",
+            "OWNER", "OWNER2", "ZONECLASS", "ZONEDESC",
+            "LANDUSE", "PROPTYPE", "CALC_ACRE",
+        ],
+    )
+    prep(
+        "addresses",
+        GIS / "Addresses.geojson",
+        keep_cols=[
+            "OBJECTID", "GISLINK", "FULLADDR", "PLACETYPE",
+            "ADDRCLASS", "ZONING", "OWNER_CALC",
+        ],
+    )
+    prep(
+        "roads",
+        GIS / "Road_Centerlines.geojson",
+        keep_cols=[
+            "OBJECTID", "CENTERLINEID", "FULLNAME", "ROADCLASS",
+            "ROADCLASS_PW", "MAINTBY", "PRIVDRIVETYPE",
+        ],
+    )
+
+
+if __name__ == "__main__":
+    sys.exit(main())