Latest Contributions by MartinHvidberg

Dear Community When defining parameters in a .pyt (Python toolbox) I would like to make one of the parameters optional - I think. It's a boolean parameter, allowing the user to specify weather the tool is allowed to overwrite certain values. I have made it default to False, and that would be the correct setting in 9 of 10 cases, so I would prefer if the tool would be able to just go with this default value. Unfortunately, when run, the tool insist that I toggle the boolean, before it will remove the little green dot. If I run the tool with the default values untouched, it gives me an error-box saying: "ERROR 000735: Overwrite Existing OBJNAM and NOBJNM: Value is required" I have tried to change the parameter from parameterType="Required", to parameterType="Optional", but it seems to have no effect on the tool behaviour. I have decided to paste the entire code here, it's still 90% cut-and-paste from ArcGIS Help (10.2, 10.2.1, and 10.2.2) , ArcGIS Help (10.2, 10.2.1, and 10.2.2) , and others but I guess the error is in a combination of things, and not the isolated line. I have marked the parameter (line 81), that I try to change to make a difference. #------------------------------------------------------------- # Name:       GNDBtoolbox.pyt # Purpose:    A python-toolbox to work with the "Greenlandic Names Data Base" (GNDB) and NIS. # Author:     Martin Hvidberg # e-mail:     mahvi@gst.dk, Martin@Hvidberg.net # Created:    2014-09-16 # Copyright:  CopyLeft # ArcGIS ver: 10.2.0 # Python ver: 2.7.3 #------------------------------------------------------------- import arcpy class Toolbox(object):         def __init__(self):         """Define the toolbox (the name of the toolbox is the name of the .pyt file)."""         self.label = "The_GNDB_Toolbox"         self.alias = "Toolbox to work with GNDB and NIS"         self.description = "This is the description of the toolbox..."         # List of tool classes associated with this toolbox         self.tools = [GNDBruninTOC]         class GNDBruninTOC(object):     """     GNDB update NIS - assuming feature classes all ready opened in TOC     Created on 27 Sep 2011     @author: mahvi@gst.dk / Martin@Hvidberg.net         """         def __init__(self):         """Define the tool (tool name is the name of the class)."""                   self.label = "GNDB_update_NIS_run_in_TOC"         self.description = "This tool will update the selected NIS FC, which must be in the TOC"         self.canRunInBackground = True # True = Obey "Background Processing setting" in the Geoprocessing Options dialog.     def getParameterInfo(self):         """Define parameter definitions"""         # 0. The Feature layer to receive GNDB names         param0 = arcpy.Parameter(             displayName="Input Features",             name="in_features",             datatype="GPFeatureLayer",             parameterType="Required",             direction="Input")             # 1. The point feature class holding the GNDB         param1 = arcpy.Parameter(             displayName="GNDB points",             name="GNDB",             datatype="GPFeatureLayer",             parameterType="Required",             direction="Input")            param1.value = "NamesP"             # 2. The Mode         param2 = arcpy.Parameter(             displayName="The Mode",             name="Mode",             datatype="GPString",             parameterType="Required",             direction="Input")                    param2.filter.type = "ValueList"         param2.filter.list = ["Berit", "Test"]         param2.value = param2.filter.list[0]             # 3. Overwrite         param3 = arcpy.Parameter(             displayName="Overwrite Existing OBJNAM and NOBJNM",             name="Overwrite",             datatype="GPBoolean",             parameterType="Optional",   # <------ This seems to have no effect ?             direction="Input")            param3.value = "False"                          params = [param0, param1, param2, param3]             return params     def isLicensed(self):         """Set whether 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."""         # put processing here ...         return ... View more

In a .pyt I can define parameters as described in : ArcGIS Help (10.2, 10.2.1, and 10.2.2) I have created a boolean parameter, the code snippet is as follow: def getParameterInfo(self):     """Define parameter definitions"""     ... some other parameters ...         # 3. Overwrite     param3 = arcpy.Parameter(         displayName="Overwrite Existing OBJ",         name="Overwrite",         datatype="GPBoolean",         parameterType="Required",         direction="Input")   The parameter works, but it anoys me that it defaults to True, I would like it to default to False. v.h. Martin ... View more