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	These algorithms allow users to convert z or m values present in feature geometries to attributes in the layer. By default the z/m value from the first vertex in the feature is extracted, but optionally statistics can be calculated on ALL the z/m values from the geometry (e.g. calculating mean/min/max/sum/etc of z values).
		
			
				
	
	
		
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			2 lines
		
	
	
		
			257 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]
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