Victor Phan
80 lines
2.4 KiB
Python
Executable File
80 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python
|
|
"""
|
|
Test script to verify shapefile overlay functionality
|
|
"""
|
|
import geopandas as gpd
|
|
import numpy as np
|
|
from pathlib import Path
|
|
|
|
# Test shapefile path
|
|
shapefile_path = "ChauThanh/HienTrang/ChauThanh_kiemke.shp"
|
|
|
|
print("=" * 70)
|
|
print("TESTING SHAPEFILE OVERLAY")
|
|
print("=" * 70)
|
|
|
|
# Check if file exists
|
|
shp = Path(shapefile_path)
|
|
print(f"\n1. Checking file existence:")
|
|
print(f" Path: {shp}")
|
|
print(f" Exists: {shp.exists()}")
|
|
print(f" Absolute: {shp.absolute()}")
|
|
|
|
if shp.exists():
|
|
# Read shapefile
|
|
print(f"\n2. Reading shapefile...")
|
|
gdf = gpd.read_file(str(shp))
|
|
print(f" Features: {len(gdf)}")
|
|
print(f" CRS: {gdf.crs}")
|
|
print(f" Bounds: {gdf.total_bounds}")
|
|
print(f" Columns: {list(gdf.columns)}")
|
|
|
|
# Check geometries
|
|
print(f"\n3. Checking geometries...")
|
|
valid_count = sum(1 for geom in gdf.geometry if geom is not None and geom.is_valid)
|
|
print(f" Valid geometries: {valid_count} / {len(gdf)}")
|
|
|
|
# Sample geometry bounds
|
|
if len(gdf) > 0:
|
|
sample_geom = gdf.geometry.iloc[0]
|
|
print(f" Sample geometry type: {sample_geom.geom_type}")
|
|
print(f" Sample geometry bounds: {sample_geom.bounds}")
|
|
|
|
# Test reprojection to EPSG:4326
|
|
print(f"\n4. Testing reprojection to EPSG:4326...")
|
|
try:
|
|
gdf_4326 = gdf.to_crs("EPSG:4326")
|
|
print(f" Success!")
|
|
print(f" New bounds: {gdf_4326.total_bounds}")
|
|
except Exception as e:
|
|
print(f" ERROR: {e}")
|
|
|
|
# Test boundary extraction
|
|
print(f"\n5. Testing boundary extraction...")
|
|
boundaries = []
|
|
for geom in gdf.geometry:
|
|
if geom is not None and geom.is_valid:
|
|
boundary = geom.boundary
|
|
if boundary is not None:
|
|
boundaries.append(boundary)
|
|
print(f" Extracted boundaries: {len(boundaries)}")
|
|
|
|
# Test buffering
|
|
print(f"\n6. Testing buffer...")
|
|
buffer_size = 0.001 # degrees or meters depending on CRS
|
|
buffered = []
|
|
for boundary in boundaries[:10]: # Test first 10
|
|
try:
|
|
buf = boundary.buffer(buffer_size)
|
|
buffered.append(buf)
|
|
except Exception as e:
|
|
print(f" Buffer error: {e}")
|
|
print(f" Successfully buffered: {len(buffered)} / 10")
|
|
|
|
else:
|
|
print(" ERROR: Shapefile not found!")
|
|
|
|
print("\n" + "=" * 70)
|
|
print("TEST COMPLETE")
|
|
print("=" * 70)
|