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IO / Read and write KML file with geopandas and fiona driver
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import fiona | |
import geopandas as gpd | |
# Enable fiona driver | |
gpd.io.file.fiona.drvsupport.supported_drivers['KML'] = 'rw' | |
# Read file | |
df = gpd.read_file(path, driver='KML') | |
# Write file | |
with fiona.drivers(): | |
# Might throw a WARNING - CPLE_NotSupported in b'dataset sample_out.kml does not support layer creation option ENCODING' | |
df.to_file('sample_out.kml', driver='KML') | |
# Drop Z dimension of polygons that occurs often in kml | |
import shapely | |
import fiona | |
import geopandas as gpd | |
# Enable fiona driver | |
fiona.supported_drivers['KML'] = 'rw' | |
# Read file | |
df = gpd.read_file(path, driver='KML') | |
# Write file | |
with fiona.drivers(): | |
# Might throw a WARNING - CPLE_NotSupported in b'dataset sample_out.kml does not support layer creation option ENCODING' | |
df.to_file('sample_out.kml', driver='KML') # You may change driver to GeoJSON | |
# Drop Z dimension of polygons that occurs often in kml - * expansion handles xy anx xyz cases | |
import shapely | |
df = df.set_geometry( | |
df.geometry.map( | |
lambda polygon: shapely.ops.transform(lambda x, y, *_: (x, y), polygon) | |
) | |
) | |
# Orient the shape counter clockwise to be Vega conform | |
df = df.set_geometry( | |
df.geometry.map(lambda geom: shapely.geometry.polygon.orient(geom)) | |
) | |
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