Data Driven Page Export ArcPRO to Image

Question

The key issue to me seems to be: arcpy.AddMessage(theRow.getValue(theNameField))‍ Is not working in arcpro in respect to a row object from a layout mapseries, this worked just fine in ArcGIS (10.3) Details I am trying to automate the export of a data driven page into .png in arcpro. The issue I am running into working out how to automate the naming of the output .png's. The naming pattern I want to use is theOutput = outDir + '\' + theBase + '_'+str(theNameValue) + ".png" Where outDir is an output directory which is passed into the job as a parameter. theBase is the base file name of the arcpro project and is defined thus theBase = os.path.splitext(os.path.basename(aprx.filePath))[0] The issue is arising in setting theNameValue. I want to use the value of mapsSeries.pageNameField for the current page the script is iterating through. A sample script is attached and requires the following parameters. outDir = arcpy.GetParameterAsText(0) # Create or use an output directory variable outRes = arcpy.GetParameterAsText(1) # Resolution of PNG in dpi. theLayout = arcpy.GetParameterAsText(2) #The layout we want to push out DDPs on. Now on my test data I happen to have set the map series name field to be a field named: Name (the use case is bridges, but that's not really relevant...) but it is successfully used in line 23 arcpy.AddMessage(theRow.Name) Now according to the help on map series line 20 on the snippet below, theRow should be returning a row object. Checking what theRow is via line24 returns: [0, 'Aughnacrew Bridge Culvert', 'BR01', ' '] on the test data I was using this is expected. According to the help on row objects this should have a method getValue (field_name) that Gets the field value.... However when I try to use it like in line 26: arcpy.AddMessage(theRow.getValue(theNameField)) It will cause the code to fail like the image below and as far as I can tell this should work. Can anyone help me understand why this is not working? I have managed to get this script to sort of work by calling theRow.__getattribute__(theNameField) But this does not strike me as good form. I am using ArcPRO 2.2.0 for lyt in aprx.listLayouts(theLayout): if lyt.name == theLayout: #we check we are hitting on our desired if lyt.mapSeries is not None: ms = lyt.mapSeries idxLyer = ms.indexLayer idxLyerName = ms.indexLayer.name if ms.enabled: arcpy.AddMessage(" Map Doc is data driven page. All good to proceed") #get the name field. theNameField = ms.pageNameField.name test = ms.pageNameField #get the number of pages to use for push out for pageNum in range(1,ms.pageCount + 1): #make the page the current page number.. ms.currentPageNumber = pageNum arcpy.AddMessage(pageNum) theRow = ms.pageRow fields = arcpy.ListFields(idxLyerName) arcpy.AddMessage(theNameField) arcpy.AddMessage(theRow.Name) arcpy.AddMessage(theRow) #seeing what row contains arcpy.AddMessage(theRow[1]) #access row by index #arcpy.AddMessage(theRow.getValue(theNameField)) #This causing fail arcpy.AddMessage(dir(theRow)) #find out what methods and attributes theRow has. arcpy.AddMessage(theRow.__getattribute__(theNameField)) #This works? arcpy.AddMessage("where is this going wrong?") theOutput = outDir + '\' + theBase + '_'+str(theRow.__getattribute__(theNameField)) + ".png" arcpy.AddMessage(theOutput)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ddp2png_V2.0_issueCase.py.zip

LouisDECOMBE · Answer

Hi,

I try also to make png file for my mapseries. I saw your script and its seems great. I dont know if you find a solution.

If yes,would it possible please to share it again.

Sorry for my poor english.

Regards

Louis

elpone · Answer

Hi Dan Patterson‌ This is not really the key issue, getting a string returned is the desired outcome. The issue to me seems to be a arcpy.AddMessage(theRow.getValue(theNameField)) Is not working in arcpro. The same line in a script that worked just fine in ArcGIS (10.3) is below. All I was attempting was to upgrade a script for use in ArcPRO. The bit wrecking my head is according to the documentation it "should work". As far as I can tell the row object returned from the layout mapseries for the current page we are iterating through our pages does not have access to getValue (field_name) method but according to the ArcPY documentation for Row that method is alive and well... #Get details of map document that called this script to run... mxd = arcpy.mapping.MapDocument("CURRENT") # get the name field theNameField = mxd.dataDrivenPages.pageNameField.name for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1): mxd.dataDrivenPages.currentPageID = pageNum #get the value of theNameField for the current row of the index layer theRow = mxd.dataDrivenPages.pageRow theNameValue = theRow.getValue(theNameField )‍‍‍‍‍‍‍‍‍‍‍‍ ‍‍‍‍‍‍‍‍‍‍‍‍ However thanks for the reply, this will be a handy tip in debugging when one is not sure what you are really getting back. Regards.

DanPatterson_Retired · Answer

msg = theRow.getValue(theNameField) arcpy.AddMessage("{}".format(msg))‍‍ python format strings automatically convert whatever to a string representation. You can control whether you want str or repr to be used as in the example below a = np.arange(10) "{}".format(a) '[0 1 2 3 4 5 6 7 8 9]' "{!s:}".format(a) # str is used by default '[0 1 2 3 4 5 6 7 8 9]' "{!r:}".format(a) # repr can be used if the object has one 'array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])'‍‍‍‍‍‍‍‍‍‍