数据集属性 (arcpy)

摘要

Describe 函数将返回数据集的以下属性。

各种类型的 Describe 对象中均存在数据集属性。

属性

属性	说明	数据类型
canVersion (只读)	Indicates whether the dataset can be versioned	Boolean
datasetType (只读)	Returns the type of dataset being described Any Container Geo FeatureDataset FeatureClass PlanarGraph GeometricNetwork Topology Text Table RelationshipClass RasterDataset RasterBand TIN CadDrawing RasterCatalog Toolbox Tool NetworkDataset Terrain RepresentationClass CadastralFabric SchematicDataset Locator	String
DSID (只读)	The ID of the dataset	Integer
extent (只读)	The Extent object	Extent
isVersioned (只读)	Indicates whether the dataset is versioned	Boolean
MExtent (只读)	A space-delimited string (MMin MMax)	String
spatialReference (只读)	Returns the SpatialReference object for the dataset	SpatialReference
ZExtent (只读)	A space-delimited string (ZMin ZMax)	String

代码实例

Dataset properties example (stand-alone script)

The following stand-alone script displays some dataset properties for a shapefile.

import arcpy

# Create a Describe object from the shapefile
#
desc = arcpy.Describe("C:/temp/xy.shp")

# Print dataset properties
#
print("Dataset Type: {0}".format(desc.datasetType))
print("Extent:\n  XMin: {0}, XMax: {1}, YMin: {2}, YMax: {3}".format(
    desc.extent.XMin, desc.extent.XMax, desc.extent.YMin, desc.extent.YMax))
print("MExtent: {0}".format(desc.MExtent))
print("ZExtent: {0}".format(desc.ZExtent))

print("Spatial reference name: {0}:".format(desc.spatialReference.name))