Latest Contributions by ChrisFox3

Hi Lars, You probably won't like this answer but this is all so much easier at 10.1. At 10.1 sp1 we made a change so the NADCON transformation will no longer be added to the map by default, so it won't show up unless the transformation was actually set by the user. In addition, at 10.1 we added a new function call ListTransformations: http://resources.arcgis.com/en/help/main/10.1/#/ListTransformations/018v0000001p000000/ It allows you to specify an input spatial ref, output spatial ref and optional extent object and it will return a list of all the valid transformations for the from and to spat ref. With this list you could compare what is in the map and select the match. ... View more

I spoke with John on this through e-mail, but thought I would post the answer here as well in case anyone in the future needs to know. To change this you would need to modify the config.xml. Below is an example of the section of the config defining the toolbars. Inside the Toolbars tag are two toolbars. Defined with Toolbar2 are the items on that Toolbar. In this scenario I have a 2 buttons, followed by a tool and a combobox in that order. <Toolbars>  <Toolbar caption="Toolbar2" category="Python Addin" id="TestAddin_addin.toolbar" showInitially="true">   <Items>    <Button refID="TestAddin_addin.button" />    <Button refID="TestAddin_addin.button_1" />    <Tool refID="TestAddin_addin.tool" />    <ComboBox refID="TestAddin_addin.combobox" />   </Items>  </Toolbar>                                   <Toolbar caption="Toolbar1" category="Python Addin" id="TestAddin_addin.toolbar_1" showInitially="true"><Items /></Toolbar> </Toolbars> If I want to move the combox box to be the first item on the toolbar I would modify the xml to the following, with the ComboxBox defined first. <Toolbars>  <Toolbar caption="Toolbar2" category="Python Addin" id="TestAddin_addin.toolbar" showInitially="true">   <Items>    <ComboBox refID="TestAddin_addin.combobox" />    <Button refID="TestAddin_addin.button" />    <Button refID="TestAddin_addin.button_1" />    <Tool refID="TestAddin_addin.tool" />   </Items>  </Toolbar>                                   <Toolbar caption="Toolbar1" category="Python Addin" id="TestAddin_addin.toolbar_1" showInitially="true"><Items /></Toolbar> </Toolbars> I wouldn???t be too concerned with modifying the xml, just make a copy of the original first and keep it as a back-up in case anything goes wrong you can always roll back. At this time this is the only way to modify the order of elements on a toolbar after it has already been authored in the python add-in wizard. ... View more

This might be an spatial resolution/XY tolerance issue where vertices are being snapped together because the are closer than the default XY tolerance of a geometry with an unknown spatial reference. Try passing in an appropriate spatial reference for the geometry when you create the Polygon: OutCur = arcpy.da.InsertCursor(os.path.join(OutPath, OutPoly + "2"), ["PMLNo", "SHAPE@"]) desc = arcpy.Describe(os.path.join(OutPath, OutPoly + "2")) sr = desc.spatialReference   for k in PolyData:     v = PolyData     array = arcpy.Array()     # print k, len(v)     for xy in v:         point = arcpy.Point()         point.X = xy[0]         point.Y = xy[1]         array.add(point)      polygon = arcpy.Polygon(array, sr)     data = [k, polygon]     OutCur.insertRow(data)  del OutCur ... View more

Check out the following help topic: http://resources.arcgis.com/en/help/main/10.1/#/Managing_the_state_of_Python_add_in_types/014p0000001s000000/ If you want modify the state of another add-in item you need to reference the ID of the item. In your code you are using the name of the class, Block. Based on the comments in your code the ID of the second combo box is combobox2, so you would need to use that. The ID is defined when you author the addin and is stored in the config.xml. comboxbox2.enabled = True ... View more

Layer Describe properties has an FIDSet property which returns a semicolon-delimited string of selected feature IDs. If the string is empty no features are selected: desc = arcpy.Describe(lyr) if not desc.FIDSet  == '':    print 'Layer has a selection' ... View more