Latest Contributions by TomGeo

Hi, I do have a little problem in my business logic of my Python tool. In case the user does not have street and municipality names for the addresses the fields 'Municipality names' and 'Street name' should not only be disabled but also not Required. However, when the appropriate checkbox is set to False these Fields are required. Is there any possibility to disable a parameter in a Python toolbox that the parameterType is neglected? Also, that I have to give a parameterType to a checkbox (or GPBoolean), or that there is a 'Required' given as default value is a bit weird. Looking forward to any suggestion on how to solve these issues. Bests Thomas ... View more

I have the issue that I want to set value of a parameter from within the updateParameters function in a Python toolbox. The parameter is defined like this: def getParameterInfo(self):      in_fc_mark = arcpy.Parameter(             displayName="Field Data (calculation year)",             name="pln_classes",             datatype="String",             parameterType="Required",             direction="Input")      # Define calculation year      int_today = datetime.datetime.today().year      in_int_year = arcpy.Parameter(          displayName="Calculation Year",          name="str_years",          datatype="GPLong",          parameterType="Required",          direction="Input")      in_int_year.filter.type = "Range"      in_int_year.filter.list = [1980, int_today+1]      parameters = [in_fc_mark,                    in_int_year]      return parameters and I would like to set the value for it this way: def updateParameters(self, parameters):      if parameters[0].altered:           str_file = datetime.datetime.strftime(dparser.parse(os.path.basename(parameters[0].valueAsText), fuzzy=True),'%Y%m%d')           if str_file[:4].isdigit():                parameters[1].value(int(str_file[:4]))      return However, it doesn't work. I can enable parameters of type "GPBoolean" with parameters[1].enabled = True, but setting the value gives me trouble. How can I do this? Bests, Thomas ... View more

I am running into an issue publishing my Python tool as a geoservice. One of the first things in the tool is the selection of a workspace, which I then set as arcpy.env.workspace. Even though the parameter is clearly some the user can choose, when trying to publish the tool this parameter is recognized as a constant. Apart from not being able to write any description for the parameter, that keeps me from publishing the service and it determines default values for the other fields the user can choose from. I can only deselect the fields, or feature classes that haven't been used in the successful run of the tool. My question would be on how to get rid of these values, since I do not want to have any default values in any of the fields provided for user input. Bests, Thomas Environment: ArcGIS Server 10.2, ArcGIS 10.2.1 ... View more

Writing a tool within a Python toolbox I ran into the problem of checking the status of some checkbox. While setting a default value for the checkbox is no problem, parameter_bool.value = True it comes kind of strange to retrieve the status. If I am not completely wrong then every parameter has two possibilities to achieve that: value, and valueAsText. First I tried to check against the value: if parameters[0].value is True: then against valueAsText, if paramaters[0].valueAsText == 'true': It took me a bit to realize that valueAsText will return either 'true' or 'None'. Why does it not return 'false'? However to check against it did not work. This part of the loop was never touched... I ended up in using: if parameters[0].value: or if not parameter[0].value: Can somebody explain to me why it is impossible to check against the textual value by using the same strings that will be returned if I retrieve them this way?: arcpy.AddMessage(str(parameters[0].valueAsText)) Wouldn't it be much easier to simply check the value against True/False? ... View more

Dear all, the code below is jamming after  a while and I am incapable to see where or why. Background... I have about 14.000 buffers in a feature class and a road network of almost 1.000.000 features in another feature class. Both are within the same FGDB. I have to do a clip for each buffer, do some calculation on the clipped road pieces, and get the sum stored in a separate table. Except the result of the statistics analysis, that is written in file, all other results are kept in memory. In line 31 I empty the memory. Can somebody tell me why the process is getting continuously slower the longer it runs? import arcpy # Set environmental parameters arcpy.env.workspace = r'C:/Path/to/Projects/Project.gdb' arcpy.env.scratchWorkspace = r'C:/Path/to/Projects/scratchGDB/scratch.gdb' arcpy.env.overwriteOutput = True arcpy.MakeFeatureLayer_management('Cohort_noXY_buffer300', 'buffer') arcpy.MakeFeatureLayer_management('roads', 'road') expression = "TrafficLoad(!AGTRAF2DIR!, !AADT!, !TB_Length!)" codeblock = """def TrafficLoad(Road2, ADT, Rlength):     if Road2 == 2:         x = ADT * 2  * Rlength     else:         x = ADT * Rlength     return x""" # , """ "OBJECTID" >= 2442""" with arcpy.da.SearchCursor('buffer', ['OID@']) as SCursor:     for row in SCursor:         out = r'C:/Path/to/Projects/noXY.gdb/Export_noXY_300_Buffer_' + str(row[0])         arcpy.SelectLayerByAttribute_management('buffer', 'NEW_SELECTION', """"OBJECTID" = {0}""".format(row[0]))         arcpy.Clip_analysis('road', 'buffer', 'in_memory/clip')         arcpy.AddField_management('in_memory/clip', 'TB_ADT', 'DOUBLE', '', '', '', '', 'NULLABLE', 'NON_REQUIRED', '')         arcpy.CalculateField_management('in_memory/clip', 'TB_Length', '!shape.length!', 'PYTHON_9.3')         arcpy.CalculateField_management('in_memory/clip', 'TB_ADT', expression, 'PYTHON_9.3', codeblock)         arcpy.Statistics_analysis('in_memory/clip', out, "TB_ADT SUM", '')         arcpy.Delete_management('in_memory')         print "{0} processed".format(out) Best regards, Thomas ... View more

Hi, I want to convert some date strings into correct dates, to be recognized by Python and ArcGIS. Setup:      ArcGIS 10.2.1      Python 2.7.5 All data are located within a FGDB... I set the workspace to be the FGDB, created a new Field of type data in my table and went on with the following things within the IDLE Shell import datetime with arcpy.da.UpdateCursor(myTable, [field01, field02]) as UCursor:      for row in UCursor:           origDate = datetime.datetime.strptime(row[0], '%d%b%Y')           row[1] = datetime.date.strftime(origDate, '%Y-%m-%d')           UCursor.updateRow(row) Things work fine until the input string is '11MAY2004', where I get the following error message: Traceback (most recent call last):   File "<pyshell#9>", line 4, in <module>     origDate = datetime.datetime.strptime(row[0], '%d%b%Y')   File "C:\Python27\ArcGISx6410.2\lib\_strptime.py", line 325, in _strptime     (data_string, format)) ValueError: time data '11MAY2004' does not match format '%d%b%Y' I did try the whole thing in plain Python (same shell) before, where I simply did: orig = '11MAY2004' x = datetime.datetime.strptime(orig, '%d%b%Y') and this works without any problem!!! Can somebody enlighten me where I go wrong? Cheers, Thomas ... View more