Latest Contributions by Zeke

‎04-09-2014

You need to loop through the features, creating a buffer for each one. As you access each one, you can multiply the value in the height field by your number. I doubt that you need or will see a better result by using a number with such precision, but hey, that's your call. You could use a search cursor to iterate through the records. If you have a relatively small number of unique heights, it might be faster to select sets of features by height and buffer all of them with that value at once.

‎04-08-2014

Python also often uses None instead of Null.

‎04-02-2014

I admit to not having heard of PYCAN before, but is this related to ArcGIS? I'm wondering if maybe you thought this was a general Python forum, but it's intended for python coding in ArcGIS, a GIS mapping software. My apologies if I'm wrong, just don't see anything GIS related in your code.

‎03-31-2014

Yes, that appears to have fixed it. Dumb mistake on my part, but an even dumber error message. Thanks.

‎03-31-2014

I wrote a hyperlink script in Python for the Display tab. It has an if/elif structure based on the value of a field. With just the if clause, it runs fine an opens the document. But when I add the elif clause, Arc gives me an error saying '...name OpenLink is not defined'. This makes no sense to me, it's the default name of the function. Any ideas? Thanks. import os, threading def OpenLink ([SubtypeCD], [Name] ): if [SubtypeCD] == 'Recorded' and [Name] is not None: parsedName = [Name].partition('-') folderPrefix = parsedName[0].zfill(4) fileSuffix = parsedName[2].zfill(4) extension = '.TIF' fileName = folderPrefix + fileSuffix + extension loc = r"\\base\path" image = os.path.join(loc, folderPrefix, fileName) threading.Thread(target=os.startfile, args=(image,)).start() elif [SubtypeCD] == 'Unrecorded' and [Name] is not None: parsedName =[Name].split('-') folderOne = parsedName[0] + '_Survey' folderTwo = [Name] fileName = [Name] + '0001.tif' loc = r"\\other\base\path' image = os.path.join(loc, folderOne, folderTwo, fileName) threading.Thread(target=os.startfile, args=(image,)).start() else: pass return

‎03-28-2014

Ok, thanks Shaun. It's just to prevent user error since displaying map tips apparently interferes with the hyperlink tool. If the user remembers to keep them turned off, that'll work.

‎03-27-2014

Is there a way to programatically turn off Map Tips (the ones on the Display tab) with Python? Thanks.

‎03-27-2014

In your first example, you should pass CopyRaster dataset, rather than datasetList. Also not a good idea to use the word dataset as a variable name, since that has a specific meaning in ArcGIS and may be a reserved word in arcpy as well. You could just use d instead. Then, you're correct that you need to give an actual path & raster name. In your ListRasters call, "Raster" is an incorrect specification. In your case you want "TIF". I've also never seen a wildcard listed with a letter in List type functions, but don't know that it's incorrect. In any case, it would only get tifs starting with 'a'. Here's your first code corrected: import arcpy arcpy.env.workspace = "E:/Pyton/Prova/Tif" datasetList = arcpy.ListDatasets("*", "TIF") for d in datasetList: arcpy.CopyRaster_management(d,"e:/Pyton/prova/bil/new_rastername.bil") See here . As for your second example, I didn't go through it closely, but generally, it's not a good idea to end paths with a slash. Also, you don't want two slashes if you're using '/'. You'd only use two with '\' because '\' is an escape character, or if you were starting a UNC path.

‎03-27-2014

You want to use ListRasters() and a for loop. An example from ESRI: import arcpy from arcpy import env # Set the current workspace env.workspace = "C:/Data/DEMS" # Get a list of ESRI GRIDs from the workspace and print rasterList = arcpy.ListRasters("*", "GRID") for raster in rasterList: print raster # replace this with your copy code The ()'s and *'s in your file names might be a problem, though. Also, a few thousand will take a long time, and might overwhelm your system. You might also want to look at the Raster to Other Format tool.

‎03-19-2014

This may be a read only property that you can only set when creating the field.

‎03-19-2014

In Python I use None to check for null values. Try something like: if [field1].strip() != "" AND NOT [field1] Is None: or maybe you could use: if len([field1].strip()) > 0: Not sure what your values are, so see what works best. This is also assuming field1 is a string, not a number.

‎03-19-2014

You can also use a with statement when initializing the cursor to eliminate the need for del: with arcpy.SearchCursor(in_feature, fields="NEAR_FID")as cursor1: #loops here

‎03-18-2014

Thanks Shawn.

‎03-18-2014

Try this: import ctypes # An included library with Python install. ctypes.windll.user32.MessageBoxA(0, "Your text", "Your title", 1) Or define a function (Mbox) like so: import ctypes # An included library with Python install. def Mbox(title, text, style): ctypes.windll.user32.MessageBoxA(0, text, title, style) Mbox('Your title', 'Your text', 1) Note the styles are as follows: ## Styles: ## 0 : OK ## 1 : OK | Cancel ## 2 : Abort | Retry | Ignore ## 3 : Yes | No | Cancel ## 4 : Yes | No ## 5 : Retry | No ## 6 : Cancel | Try Again | Continue From Stack Overflow

‎03-14-2014

The new feature should have the highest ObjectID, but I wouldn't necessarily rely on that. After creating it, before any edit session, while the new feature is still selected, put the ObjectID in a variable. Then when you go to edit, select that ObjectID.

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My Ideas

Latest Contributions by Zeke

Re: Creating buffer with Python

Re: How to Delete NULL Records

Re: PYthon _CAN

Re: Error in hyperlink script

Error in hyperlink script

Re: Turn off map tips in python?

Turn off map tips in python?

Re: Using Python to copy more than one raster at a time

Re: Using Python to copy more than one raster at a time

Re: Setting Field Properties to Not Nullable

Re: label expression: 'if not field 1, then field 2', how is this achieved

Re: for loop in a for loop... I'm stuck!

Re: Listing data in an SDE

Re: How to show Messagebox in ArcMap 10.1 through using Python?

Re: Select newly created feature

Conditional formatting for cells in a layout table...

Re: Change Legend Item names

Re: Keep labels in layout frame in map series

Keep labels in layout frame in map series

Re: Append not working