Synthèse
The Describe function returns the following properties for datasets.
Dataset properties are available in many types of Describe objects.
Propriétés
Propriété | Explication | Type de données |
canVersion (Lecture seule) | Indicates whether the dataset can be versioned. | Boolean |
changeTracked (Lecture seule) | Indicates whether the dataset is change tracked. | Boolean |
datasetType (Lecture seule) | Returns the type of dataset being described.
| String |
DSID (Lecture seule) | The ID of the dataset. | Integer |
extent (Lecture seule) | The Extent object. Remarque :extent is available for spatial datasets only. | Extent |
isArchived (Lecture seule) | Indicates whether the dataset has been archived. isArchived is only supported for an enterprise geodatabase. | Boolean |
isVersioned (Lecture seule) | Indicates whether the dataset is versioned. | Boolean |
MExtent (Lecture seule) | A space-delimited string (MMin, MMax). Remarque :MExtent is available for spatial datasets only. | String |
spatialReference (Lecture seule) | Returns the SpatialReference object for the dataset. Remarque :spatialReference is available for spatial datasets only. | SpatialReference |
ZExtent (Lecture seule) | A space-delimited string (ZMin, ZMax). Remarque :ZExtent is available for spatial datasets only. | String |
Exemple de code
The following stand-alone script displays 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)))
Vous avez un commentaire à formuler concernant cette rubrique ?