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sgillies/polygonizing.py

Created January 16, 2014 23:55
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polygonizing with rasterio and fiona
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polygonizing.py
import rasterio
with rasterio.open(raster_filename, 'r') as src:
image = src.read_band(1) # read
features = rasterio.features.polygonize(image) # no I/O!
with fiona.open(vector_filename, 'w', **meta) as dst:
dst.writerecords(features) # write
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