Result (arcpy)

摘要

通过地理处理工具返回 Result 对象。

讨论

Result 对象的优点是可以保留工具执行的相关信息，包括消息、参数和输出。即使在运行了多个其他工具后仍可保留这些结果。

语法

Result (toolname, resultID)

参数	说明	数据类型
toolname	The name of the executed tool.	String
resultID	The job ID.	Integer

属性

属性	说明	数据类型
inputCount (只读)	Returns the number of inputs.	Integer
maxSeverity (只读)	Returns the maximum severity of the messages. 0 —If the tool produced only informative messages. 1 — If the tool produced a warning message, but no error messages. 2 — If the tool produced an error message.	Integer
messageCount (只读)	Returns the number of messages.	Integer
outputCount (只读)	Returns the number of outputs.	Integer
resultID (只读)	Gets the job ID. If the tool is not a geoprocessing service, the resultID will be "".	String
status (只读)	Gets the job status. 0 —New 1 —Submitted 2 —Waiting 3 —Executing 4 —Succeeded 5 —Failed 6 —Timed out 7 —Cancelling 8 —Cancelled 9 —Deleting 10 —Deleted	Integer

方法概述

方法	说明
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 string. If the output of the tool, such as MakeFeatureLayer is a layer, getOutput will return a Layer object.
getSeverity (index)	Returns the severity of a specific message.

方法

cancel ()

getInput (index)

参数	说明	数据类型
index	The index position of the input.	Integer

返回值

数据类型	说明
Object	The input, either as a recordset or string.

getMapImageURL ({parameter_list}, {height}, {width}, {resolution})

参数	说明	数据类型
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

返回值

数据类型	说明
String	The URL of the map image.

getMessage (index)

参数	说明	数据类型
index	The index position of the message.	Integer

返回值

数据类型	说明
String	The geoprocessing message.

getMessages ({severity})

参数	说明	数据类型
severity	The type of messages to be returned: 0=message, 1=warning, 2=error. Not specifying a value returns all message types. 0 —informational message 1 —warning message 2 —error message (默认值为 0)	Integer

返回值

数据类型	说明
String	The geoprocessing messages.

getOutput (index)

参数	说明	数据类型
index	The index position of the outputs.	Integer

返回值

数据类型	说明
Object	The output, either as a recordset or string. If the output of the tool, such as MakeFeatureLayer is a layer, getOutput will return a Layer object.

getSeverity (index)

参数	说明	数据类型
index	The message index position.	Integer

返回值

数据类型	说明
Integer	The severity of the specific message. 0 —informational message 1 —warning message 2 —error message

代码实例

Result 示例 1

使用从 GetCount 返回的结果对象来确定表计数。

import arcpy
inTable = arcpy.GetParameterAsText(0)
result = arcpy.GetCount_management(inTable)
print result.getOutput(0)

Result 示例 2

从服务器工具获取要素集方案、将数据加载至要素集，将要素集传递到服务器工具并检查结果对象。完成后，将结果保存到本地数据集。

import arcpy
import time  

# Add a toolbox from a server 
#
arcpy.ImportToolbox("http://myserver/arcgis/services;GP/BufferByVal", "server") 

# Use GetParameterValue to get a featureset object with the default
#   schema of the first parameter of the tool 'bufferpoints' 
#
inFeatureSet = arcpy.GetParameterValue("bufferpoints", 0) 

# Load a shapefile into the featureset 
#
inFeatureSet.load("C:/Data/roads.shp") 

# Run a server tool named BufferPoints with featureset created above 
# 
result = arcpy.BufferPoints_server(inFeatureSet, "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 
# 
outFeatSet = result.getOutput(0)
outFeatSet.save("C:/Temp/Base.gdb/roads_buffer")

Result 示例 3

使用工具名称和结果 ID 重新创建原始地理处理服务输出。

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)