geoTools.py 文件源码

def import_summary_geojson(geojsonfilename, removeNoBuildings=True):
    # driver = ogr.GetDriverByName('geojson')
    datasource = ogr.Open(geojsonfilename, 0)

    layer = datasource.GetLayer()
    print(layer.GetFeatureCount())

    buildingList = []
    for idx, feature in enumerate(layer):

        poly = feature.GetGeometryRef()

        if poly:
            if removeNoBuildings:
                if feature.GetField('BuildingId') != -1:
                    buildingList.append({'ImageId': feature.GetField('ImageId'), 'BuildingId': feature.GetField('BuildingId'),
                                  'poly': feature.GetGeometryRef().Clone()})
            else:

                buildingList.append({'ImageId': feature.GetField('ImageId'), 'BuildingId': feature.GetField('BuildingId'),
                              'poly': feature.GetGeometryRef().Clone()})

    return buildingList