Latest Contributions by SilvanStöckli

Hello Jake Thank you for your recommendation. I forgot to write that I use the Basic license. Therefore I can't use mosaic dataset. ... View more

Thank your for all those tips! Concerning 3. str.format: is there a way to put together two strings and when one of them is "NULL/empty", ignore it and only take the "not empty" string? ... View more

Hey Joshua Thank you a lot for all of your help! After several hours of code typing, (at least in my opinion / compared to the excel-code) a kind of large code and several things not working (properly), I asked myself if there might be an easyer way to write the code. That's why I started thinking if I'm actually really using the easyest way to do it and therefore I opened this new thread. I'm not sure if that makes a difference: I'm using ArcGIS 10.3 with python 2.7.8. I imported my example-table as a table to a GDB and run your code. It did not work: "Messages Executing: CalculateField Tabelle Field_6 compare(!Field_1!, !Field_2!, !Field_3!, !Field_4!, !Field_5!) PYTHON_9.3 "def combine (fld1, fld2, fld3, fld4, fld5):\n    part1 = (\n        fld3 \n        if fld1 == 617\n        else fld2\n    )\n    part2 = (\n        (\n            u"Sometext"\n            if fld5 is None\n            else u"Someothertext" + fld5\n        )\n        if fld4 == u"ABC"\n        else u"Sometext"\n    )\n\n    return u"{} | {}".format(part1, part2)" Start Time: Thu Dec 06 11:04:19 2018 ERROR 000539: Error running expression: compare(612.0, u"from July 1", u"April to November", u"ABC", u"TextWith_äöü") Traceback (most recent call last):   File "<expression>", line 1, in <module> TypeError: compare() takes exactly 3 arguments (5 given) Failed to execute (CalculateField). Failed at Thu Dec 06 11:04:19 2018 (Elapsed Time: 0.02 seconds)" I can't figure out why it thinks that not all the arguments would be used...? Anyway, I tried to simplify my code based on your model. This works perfectly: def compare(Code, SchnittZP, WeideZP, NHG_YN):     part1 = (         "-"         if Code in (921, 922, 923, 924)         else "ERROR"     )     return part1‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ then I tried to enter an other argument (line 6+7) - resulting in an error "ERROR 000989: Python syntax error: Parsing error SyntaxError: invalid syntax (line 7) Failed to execute (CalculateField).  ": def compare(Code, SchnittZP, WeideZP, NHG_YN):     part1 = (         "-"         if Code in (921, 922, 923, 924)         "Text 634"         elif Code == 634         else "Wrong code"     )     return part1p‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ So I thought, maybe I need to adjust the whole code like this: def compare(Code, SchnittZP, WeideZP, NHG_YN):     part1 = (         if Code in (921, 922, 923, 924):             "-"              elif Code == 634:             "Text 634"         else:             "Wrong code"     )     return part1‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ because I've never seen the order you put the result bevore the condition. (What's the difference? Why do you prefer result bevore condition? How can you enter en elif-statement?) Anyway it gives back following error: "Runtime error  Traceback (most recent call last):   File "<string>", line 56, in <module>   File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\management.py", line 3453, in CalculateField     raise e ExecuteError: Failed to execute. Parameters are not valid. ERROR 000989: Python syntax error: Parsing error SyntaxError: invalid syntax (line 4) Failed to execute (CalculateField). " I tried to handle this by changing row 4 to value = "-"‍‍ and in the end "return value" but it didn't change anything. Thanks for the other useful hints about "my concerns"! I will try to implement some of your hints and explain my problems with unicode later 🙂 ... View more

Is there a way to convert the code from excel to arcgis? Because if not I will have to export the feature class-table to excel, apply the codes and join the new table to the feature class every time I change some data. That's what I try to avoid. ... View more

I thought I found the solution: return arcpy.CalculateField_management(fc, field, "!AnotherFieldName!", "PYTHON_9.3", "")‍‍ But this calculates new values for the whole table instead of only for the ones with value 612 in "field" Any idea? Thanks for your help! ... View more

thanks for your help the problem ist that I don't want to return the value from the field I'm comparing with but the value from an other field in the same table. That's why I tried to use !"AnotherFieldName"! with those "!!" ... View more

Late but in case anyone still googles for the solution: You can create a new line Feature Class, edit it, select and copy the polygons and paste them to the line FC. If you want to keep some attributes, you should create the attributes (same type and name) in the line FC first. ... View more

that's perfect! Thanks a lot! 😄 ... View more

Ok, I solved it diffrently: I made a Batch-Script: for /R C:/Path %%f in (*.ec*) do copy %%f C:/Path2/ So now I copy all the files from the folder with those many subfolders to one single folder. It works fine. The only sad thing is that I now do have two folders with all those images... but still much better than doing all this manually... If someone knows about an other method without copying the files, I would still be interested in the solution. ... View more

Yes, I can set the symbology manually. But I'll have to do so for about 100 Rasters, which really sucks. And I'll have to do it at least once a year. I tried to use a Raster Catalog. But this enlarged the Data (from 8G to 130G) and was extremely slow. I can't create a MosaicDataset because I run on basic licence. ... View more