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Python 工具箱模板

创建 Python 工具箱时,可使用以下模板组建工具箱。 此代码将创建一个 Python 工具箱,其中包含一个名为 Toolbox 的工具箱类,以及一个名为 Tool 的工具。 应将 Tool 类重命名,而且可复制并编辑该类以便在 Python 工具箱中创建其他工具。 工具名称和工具箱别名的开头必须为字母(a-z、A-Z),并且只能由字母和数字 (0-9) 组成。 不允许使用空格和特殊字符(例如,_、!、@、#、$、%、-)。

或者,复制以下代码并将其粘贴到新的 .pyt 文件中。

# -*- coding: utf-8 -*-

import arcpy

class Toolbox:
 def __init__(self):
     """Define the toolbox (the name of the toolbox is the name of the
     .pyt file)."""
     self.label = "Toolbox"
     self.alias = "toolbox"

     # List of tool classes associated with this toolbox
     self.tools = [Tool]

class Tool:
 def __init__(self):
     """Define the tool (tool name is the name of the class)."""
     self.label = "Tool"
     self.description = ""

 def getParameterInfo(self):
     """Define the tool parameters."""
     params = None
     return params

 def isLicensed(self):
     """Set whether the tool is licensed to execute."""
     return True

 def updateParameters(self, parameters):
     """Modify the values and properties of parameters before internal
     validation is performed.  This method is called whenever a parameter
     has been changed."""
     return

 def updateMessages(self, parameters):
     """Modify the messages created by internal validation for each tool
     parameter. This method is called after internal validation."""
     return

 def execute(self, parameters, messages):
     """The source code of the tool."""
     return

 def postExecute(self, parameters):
     """This method takes place after outputs are processed and
     added to the display."""
     return