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GetParameterInfo

摘要

返回给定工具的参数对象列表，并且通常用在脚本工具的 ToolValidator 类中。

语法

GetParameterInfo (tool_name)
参数说明数据类型
tool_name

工具名称。在其中包括工具箱别名有助于解决重复工具名称之间的任何冲突。

String

返回值

数据类型说明
Parameter

返回参数对象列表。

代码示例

GetParameterInfo 示例 1

显示指定工具的某些参数对象属性。

import arcpy
# Load tool parameter objects into list.
params = arcpy.GetParameterInfo("HotSpots")
for param in params:
    print("Name: {}, Type: {}, Value: {}".format(
        param.name, param.parameterType, param.value))
GetParameterInfo 示例 2

设置脚本工具输出数据集的符号。

import os
import arcpy
# Set data variables for Clip tool.
in_features = arcpy.GetParameterAsText(0)
clip_features = arcpy.GetParameterAsText(1)
out_feature_class = arcpy.GetParameterAsText(2)
# Execute Clip tool
output = arcpy.Clip_analysis(in_features, clip_features,
                             out_feature_class)[0]
# Get parameter objects
params = arcpy.GetParameterInfo()
# Use describe on result object and get shape type.
desc = arcpy.Describe(output)
# Set symbology property for out_feature_class parameter
# Layer files are located in same folder as the .py file
lyr_location = os.path.dirname(__file__)
if desc.shapeType == "Polygon":
    params[2].symbology = os.path.join(lyr_location, "Polygon.lyr")
elif desc.shapeType == "Polyline":
    params[2].symbology = os.path.join(lyr_location, "Polyline.lyr")
else:
    params[2].symbology = os.path.join(lyr_location, "Point.lyr")

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