Latest Contributions by MarkAccettulla

‎12-11-2014

Greg, Thank you, this method also worked

‎12-11-2014

Dan, thank you. I played with the logic and got it to work without code def. I hadn't thought of doing it that way, because I am attempting to duplicate a workflow that had used code def

‎12-11-2014

Making those changes to my 2.jpg gives me an "invalid syntax" error that I wasn't getting before

‎12-11-2014

I don't know a whole lot about python and scripting, so I was hoping somebody could give me a couple pointers on fixing some python. I am trying to calculate a "final results" attribute field. The field type is numeric, because I want the values to either be a 1 (pass) or 0 (fail). I have attached 2 variations of the code I have tried, but they both give me errors. The two fields I am trying to calculate from are both text fields, and the values for both are either "PASS" or "FAIL." I know that this should be a simple task, but like I said I am very very new to python. Any help or pointers would be much appreciated.

‎12-04-2014

I know the formula in excel; I forgot to say that I have really no experience with python or VBscript for creating expressions in the field calculator

‎12-03-2014

I have a data set of cross section lines (station lines). Each cross section has two intersection points, where the cross section intersects a flood zone boundary. I have extracted elevation values to these intersection points, based on a DEM. I created a new field called "ElevDiff." Is anybody aware of an expression/function I could put into the Field Calculator that would allow me to calculate the difference in elevation between the two intersection points for each cross section? I know I could do this in excel (absolute value of one cell minus another), but there are 14,000 cross sections, so I was trying to use model builder to automate the process (this is just one step in a complex flood zone analysis) so I wouldn't have to export anything to excel and then create more joins.

‎12-03-2014

@Sol Wuensch Thank you for pointing out what I overlooked. I had set the field type to double, precision 8 scale 38. I added a long integer field, and it calculated correctly. You are right, the expression was correct.

‎12-03-2014

I am trying to assign a unique Id to a couple of data layers (I know that the FID and ObjectID are unique, but for purposes of future joining I need to assign the values and have them be editable). I have never had to use Python before, so any help would be appreciated. I attached a screenshot of what I have pieced together. When I run the tool, it works, however it only goes by increments of 1 for the first hundred points. After that, it goes up by 10, and will give ten points the same number (also attached a screenshot). Can anybody help me revise my work? This data set contains 33,000+ points, so only having a unique ID for the first hundred isn't very helpful.

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Date Last Visited	‎11-11-2020 02:23 AM

My Ideas

Latest Contributions by MarkAccettulla

Re: Trouble Calculating a Field

Re: Trouble Calculating a Field

Re: Trouble Calculating a Field

Trouble Calculating a Field

Re: Subtract Elevation Values to New Field (Field Calculator)

Subtract Elevation Values to New Field (Field Calculator)

Re: Give Sequential Numbers to a Field (Calculate Field Tool)

Give Sequential Numbers to a Field (Calculate Field Tool)