utils.py 文件源码

def get_ogr_feature_attribute(attr, feature):
    attr_name = attr.name

    if not feature.IsFieldSet(attr_name):
        return (True, None)

    if attr.type == ogr.OFTInteger:
        value = str(feature.GetFieldAsInteger(attr_name))
    elif attr.type == ogr.OFTIntegerList:
        value = repr(feature.GetFieldAsIntegerList(attr_name))
    elif attr.type == ogr.OFTReal:
        value = feature.GetFieldAsDouble(attr_name)
        value = "%*.*f" % (attr.width, attr.precision, value)
    elif attr.type == ogr.OFTRealList:
        values = feature.GetFieldAsDoubleList(attr_name)
        str_values = []
        for value in values:
            str_values.append("%*.*f" % (attr.width,
                                         attr.precision, value))
        value = repr(str_values)
    elif attr.type == ogr.OFTString:
        value = feature.GetFieldAsString(attr_name)
    elif attr.type == ogr.OFTStringList:
        value = repr(feature.GetFieldAsStringList(attr_name))
    elif attr.type == ogr.OFTDate:
        parts = feature.GetFieldAsDateTime(attr_name)
        year,month,day,hour,minute,second,tzone = parts
        value = "%d,%d,%d,%d" % (year,month,day,tzone)
    elif attr.type == ogr.OFTTime:
        parts = feature.GetFieldAsDateTime(attr_name)
        year,month,day,hour,minute,second,tzone = parts
        value = "%d,%d,%d,%d" % (hour,minute,second,tzone)
    elif attr.type == ogr.OFTDateTime:
        parts = feature.GetFieldAsDateTime(attr_name)
        year,month,day,hour,minute,second,tzone = parts
        value = "%d,%d,%d,%d,%d,%d,%d,%d" % (year,month,day,
                                             hour,minute,
                                             second,tzone)
    else:
        return (False, "Unsupported attribute type: " +
                       str(attr.type))

    return (True, value)

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