Résumé
A Result object is returned by geoprocessing tools.
Discussion
The advantage of a Result object is that you can maintain information about the execution of tools, including messages, parameters, and output. These results can be maintained even after several other tools have been run.
Syntaxe
Result (toolname, resultID)
Paramètre | Explication | Type de données |
toolname | The name of the executed tool. | String |
resultID | The job ID. | Integer |
Propriétés
Propriété | Explication | Type de données |
inputCount (Lecture seule) | Returns the number of inputs. | Integer |
maxSeverity (Lecture seule) | Returns the maximum severity of the messages.
| Integer |
messageCount (Lecture seule) | Returns the number of messages. | Integer |
outputCount (Lecture seule) | Returns the number of outputs. | Integer |
resultID (Lecture seule) | Gets the job ID. If the tool is not a geoprocessing service, the resultID will be "". | String |
status (Lecture seule) | Gets the job status.
| Integer |
Vue d'ensemble des méthodes
Méthode | Explication |
cancel () | Cancels an associated job |
getInput (index) | Returns a given input, either as a recordset or string. |
getMapImageURL ({parameter_list}, {height}, {width}, {resolution}) | Gets a map service image for a given output, if one exists. |
getMessage (index) | Returns a specific message. |
getMessages ({severity}) | Returns messages. |
getOutput (index) | Returns a given output, either as a recordset or a string. |
getSeverity (index) | Returns the severity of a specific message. |
saveToFile (rlt_file) | Saves the result to a result file (.rlt). |
Méthodes
cancel ()
getInput (index)
Paramètre | Explication | Type de données |
index | The index position of the input. | Integer |
Valeur renvoyée
Type de données | Explication |
Object | The input, either as a recordset or string. |
getMapImageURL ({parameter_list}, {height}, {width}, {resolution})
Paramètre | Explication | Type de données |
parameter_list | Parameter(s) on which the map service image will be based. | Integer |
height | The height of the image. | Double |
width | The width of the image. | Double |
resolution | The resolution of the image. | Double |
Valeur renvoyée
Type de données | Explication |
String | The URL of the map image. |
getMessage (index)
Paramètre | Explication | Type de données |
index | The index position of the message. | Integer |
Valeur renvoyée
Type de données | Explication |
String | The geoprocessing message. |
getMessages ({severity})
Paramètre | Explication | Type de données |
severity | The type of messages to be returned: 0=message, 1=warning, 2=error. Not specifying a value returns all message types.
(La valeur par défaut est 0) | Integer |
Valeur renvoyée
Type de données | Explication |
String | The geoprocessing messages. |
getOutput (index)
Paramètre | Explication | Type de données |
index | The index position of the outputs. | Integer |
Valeur renvoyée
Type de données | Explication |
Object | The output, either as a recordset or a string. Result outputs can also be accessed by index, so result.getOutput(0) and result[0] are equivalent. |
getSeverity (index)
Paramètre | Explication | Type de données |
index | The message index position. | Integer |
Valeur renvoyée
Type de données | Explication |
Integer | The severity of the specific message.
|
saveToFile (rlt_file)
Paramètre | Explication | Type de données |
rlt_file | Full path to the output result file (.rlt). | String |
Exemple de code
Result example 1
Use the result object returned from GetCount to determine the count of a table.
import arcpy
in_table = arcpy.GetParameterAsText(0)
result = arcpy.GetCount_management(in_table)
print(result[0])
Result example 2
Obtain the feature set schema from the server tool, load data to the feature set, pass the feature set to the server tool, and check for the result object. Once completed, save the result to the local dataset.
import time
import arcpy
# Add a toolbox from a server
arcpy.ImportToolbox("http://myserver/arcgis/services;GP/BufferByVal",
"servertools")
# Use GetParameterValue to get a featureset object with the default
# schema of the first parameter of the tool 'bufferpoints'
in_featureset = arcpy.GetParameterValue("bufferpoints", 0)
# Load a shapefile into the featureset
in_featureset.load("C:/Data/roads.shp")
# Run a server tool named BufferPoints with featureset created above
result = arcpy.BufferPoints_server(in_featureset, "500 feet")
# Check the status of the result object every 0.2 seconds
# until it has a value of 4 (succeeded) or greater
while result.status < 4:
time.sleep(0.2)
# Get the output FeatureSet back from the server and save to a local geodatabase
out_featureset = result.getOutput(0)
out_featureset.save("c:/temp/base.gdb/roads_buffer")
Result example 3
Re-create the original geoprocessing service output using the tool name and result id.
import arcpy
# Add the toolbox from the server
arcpy.ImportToolbox("http://myserver/arcgis/services;GP/BufferByVal")
# Recreate the original output using the tool name and result id
result_id = 'jfea96e13ba7b443cb04ba47c19899a1b'
result = arcpy.Result("BufferPoints", result_id)