“Check Polygon ist gültig” Code-Antworten

Check Polygon ist gültig

#PROBLEM : 'ValueError: A LinearRing must have at least 3 coordinate tuples'

#Read data
collection = list(fiona.open(layer_file,'r'))
df1 = pd.DataFrame(collection)

#Check Geometry
def isvalid(geom):
    try:
        shape(geom)
        return 1
    except:
        return 0
df1['isvalid'] = df1['geometry'].apply(lambda x: isvalid(x))
df1 = df1[df1['isvalid'] == 1]
collection = json.loads(df1.to_json(orient='records'))

#Convert to geodataframe
gdf = gpd.GeoDataFrame.from_features(collection)