Latest Contributions by MichaelMarkieta

I am building upon this example of wxPython in ArcGIS 10.1. http://betablogs.esri.com/beta/arcgis/2012/05/03/custom-wxpython-guis-an-approach-for-arcgis-10-1/ Outside of ArcMap, I can Close() the GUI and re-initialize it in its original state using the following method: def OnReset(self, event):     self.parent.Close()      frame = myFrame() Doing this is ArcMap causes it to crash... I think it has to do with the 'extensions' portion of the AddIn. class WXExtension(object):     """Create a wxPython Extension inside ArcMap"""      def __init__(self):         self._wxApp = None         self._enabled = None      def startup(self):         try:             self._wxApp = wx.App()             self._wxApp.MainLoop()         except Exception:             pythonaddins.MessageBox("Unable to start the Extension.", "Extension Error")      @property     def enabled(self):         if self._enabled == False:             button.enabled = False         else:             button.enabled = True         return self._enabled      @enabled.setter     def enabled(self, value):         self._enabled = value  class Button(object):     """ Create a custom button inside ArcMap"""      _dlg = None      @property     def dlg(self):         if self._dlg is None:             self._dlg = myFrame()         return self._dlg      def __init__(self):         self.enabled = True         self.checked = False      def onClick(self):         try:             self.dlg.Show(True)         except Exception:             pythonaddins.MessageBox("Can't show myFrame.", "Error")             pass Included the DMP file from the ArcMap crash... ... View more

Given the functions in my python application, I would rather use the new data access module and Search Cursors to access my data and iterate through an object. Planning for the future, which method would produce quicker results when scaled upwards (more features)?      with arcpy.da.SearchCursor("myFeature", ["OBJECTID"]) as cursor:     rows = sorted({row[0] for row in cursor})  count = 0 for row in rows:     count += 1 or      arcpy.MakeTableView_management("myFeature", "myTableView") count = int(arcpy.GetCount_management("myTableView").getOutput(0)) Cheers ... View more

Can we use .pyc files for our ArcGIS Python Add-in? This would be helpful for two things: Quicker executing add-in code Including non-standard python modules/libraries with the Add-In as pyc files only (eg. wxPython precompiles to pyc on installation because there are usually no instances where source code need to be altered) ... View more

I have a script that does a series of calculations, producing temporary data along the way. Temporary data is added to the TOC once calculated in the script and then removed when I call the arcpy.Delete_management function on the data towards the end. Before my script reaches the delete function, the temporary data that I've calculated is shown in the TOC. Is there a way to explicitly specify these datasets as temporary, or freeze the TOC during script processing. Example below: class StationTypology:      def __init__(self, areaName, bufferDistance):         self.areaName = areaName         self.bufferDistance = bufferDistance      def BusinessDensity(self):         try:             # Make a temporary table in memory based on query of feature class             query = ("""\"AreaName\" = '""" + self.areaName + """' AND                      \"BufferDistance\" = """ + str(self.bufferDistance) + """ AND                      \"UseType\" = 'Business'""")              arcpy.MakeTableView_management("LANDUSE",                                            "business",                                            query)              # Calculate the sum of floor space, from above table             arcpy.Statistics_analysis("business",                                       "in_memory\\businessStatistics",                                       [["FloorArea", "SUM"]])              # Use SearchCursor to access table records and store rows in a variable             rows = arcpy.SearchCursor("in_memory\\businessStatistics",                                       "",                                       "",                                       "SUM_FloorArea",                                       "")              # Table has one row; access with iteration, grab value of SUM_FloorArea             for row in rows:                 businessDensity = row.SUM_FloorArea              del rows  # Housekeeping             arcpy.Delete_management("business")  # Housekeeping             arcpy.Delete_management("in_memory\\businessStatistics")  # Housekeeping              return businessDensity          except:             try:                 del rows  # Housekeeping                 arcpy.Delete_management("business")  # Housekeeping                 arcpy.Delete_management("in_memory\\businessStatistics")  # Housekeeping             except:                 pass I am running this script from a Python Add-In (ArcGIS 10.1) wxPython GUI. A user will press a button that triggers an event which starts a series of geoprocessing calculations as shown in the example. Just a note: I have also posted this question to GIS.stackexchange.com ... View more