Datasets:
File size: 3,658 Bytes
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from pathlib import Path
import numpy as np
#areas = {'ATA_MV', 'BRA_SP', 'CHN_WS', 'ESP_EH', 'FIN_LM', 'GER_BN', 'IDN_SV',
# 'KAZ_AC', 'KSA_WA', 'NAM_HF', 'NZL_KP', 'PHL_TA', 'USA_GC'}
areas = {'ATA_MV'}
path = Path("/home/sabrina/Documents/Tese/05_Dataset/MatchGeo-DEM-v1/data")
print("=" * 70)
print("MatchGeo-DEM NoData Fixer (Fixed)")
print("=" * 70)
for location in sorted(areas):
loc_path = Path(path, f"{location}/{location}.tif")
if not loc_path.exists():
print(f"\n⚠️ {location}: File not found — skipping")
continue
with rasterio.open(loc_path) as src:
nodata = src.nodata
# Check current state
profile = src.profile
is_bigtiff = profile.get('bigtiff', 'NO')
is_tiled = profile.get('tiled', False)
compress = profile.get('compress', 'NONE')
block_x = profile.get('blockxsize', 0)
block_y = profile.get('blockysize', 0)
needs_fix = (nodata != -9999.0 or is_bigtiff != 'YES' or
not is_tiled or compress != 'deflate')
if not needs_fix:
print(f"\n✅ {location}: Already perfect (NoData={nodata}, BigTIFF={is_bigtiff}, Tiled={is_tiled}, Deflate={compress})")
continue
print(f"\n🔧 {location}: Fixing...")
print(f" Current: NoData={nodata}, BigTIFF={is_bigtiff}, Tiled={is_tiled}, Compress={compress}")
# Read the data
band = src.read(1)
# Handle existing NoData values
if nodata is not None and nodata != -9999.0:
band[band == nodata] = -9999
print(f" Replaced old NoData ({nodata}) with -9999")
# Handle NaN values if present
if np.isnan(band).any():
nan_count = np.isnan(band).sum()
band = np.nan_to_num(band, nan=-9999)
print(f" Replaced {nan_count} NaN values with -9999")
# Build profile from scratch to avoid conflicts
# Use GTiff driver with explicit options
kwargs = {
'driver': 'GTiff',
'height': band.shape[0],
'width': band.shape[1],
'count': 1,
'dtype': 'float32',
'crs': src.crs,
'transform': src.transform,
'nodata': -9999.0,
'tiled': True,
'blockxsize': 256,
'blockysize': 256,
'compress': 'deflate',
'predictor': 2,
'zlevel': 6,
'bigtiff': 'YES',
'interleave': 'band',
}
# Write the corrected file
output_path = loc_path.with_suffix('.fixed.tif')
try:
with rasterio.open(output_path, 'w', **kwargs) as dst:
dst.write(band, 1)
# Verify
with rasterio.open(output_path) as dst:
v_nodata = dst.nodata
v_bigtiff = dst.profile.get('bigtiff', 'NO')
v_tiled = dst.profile.get('tiled', False)
v_compress = dst.profile.get('compress', 'NONE')
print(f" ✅ Fixed file: {output_path}")
print(f" ✅ NoData: {v_nodata}")
print(f" ✅ BigTIFF: {v_bigtiff}")
print(f" ✅ Tiled: {v_tiled}")
print(f" ✅ Compression: {v_compress}")
except Exception as e:
print(f" ❌ ERROR writing {location}: {e}")
print(f" 💡 Try deleting {output_path} if it exists and re-run")
if output_path.exists():
output_path.unlink()
print("\n" + "=" * 70)
print("Done! Check .fixed.tif files.")
print("=" * 70)
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