Latest Contributions by MatthiasBuehler

Hi, Question: I have read that cursors can only be iterated forward, not in reversed order. Not if I have e.g. 5 features and the following code structure: delCursor = arcpy.da.UpdateCursor(fc, field) for row in delCursor:    if testIfRowNeedsToBeDeleted(..):       delCursor.deleteRow() # messes with the number of elements in the loop!! How can I guarantee that the correct features are deleted when I delete features with 'early' OBJECTIDs out of the list, as after the first deletion, the number of elements in the field is already not the same as the cursor's number. How is this handled internally? * * * In the end, I just need to delete specific rows out of a feature class, depending on specific field values and I want to avoid any issues with the order. My favourite would be this structure in pseudo code: to deleteFeatureOBJECTIDs = [] loop over cursor:    if feature needs to be deleted based on multiple field values:       deleteFeatureIDs.append(current feature) arcpy.deleteFeaturesInFC(deleteFeatureOBJECTIDs) [[ I have also tried code-based creation of the SQL 'where_clause', with a string list, but this type of search crashes ArcGIS PRO quite easily. ]] Any input welcome! Thanks! matt ... View more

Hi, [ ArcGIS PRO 1.3.1 ] I'm a bit stuck with arcpy when adding a feature class in the Map_3D viewer as a layer. Basically I'm trying to emulate the same thing that happens when drag-n-dropping a FC into the Contents pane, resp. the Map_3D viewer. Code so far .. import arcpy aprx = arcpy.mp.ArcGISProject(pPath + pName) fc = gdbPath + gdbName + '/myFeatureClass' lyr = arcpy.MakeFeatureLayer_management(fc, 'myLayer') for map in aprx.listMaps():    if map.mapType == 'SCENE':       map.addLayer(lyr, add_position = 'AUTO_ARRANGE') But this produces an error .. What am I missing? Thanks for any input! Matt ... View more

Hi, I'm trying to solve this issue: I have 2 feature classes, with 2 states of the same point features. I'm not trying to find which specific features have changed by comparing (position or attribution). I found those tools: 1 - Detect Feature Changes—Data Management toolbox | ArcGIS for Desktop  2 - Feature Compare—Data Management toolbox | ArcGIS for Desktop  but they don't help me in my case, as: 1 - only works with lines 2 - only compares the whole feature class, but does not report which features have changed. Is there a way around this without explicitly writing a method for this (which will be super slow)? Any input welcome! Thanks, matt ... View more

Hi, when using imported modules and one of the modules changes, ArcGIS PRO does not reflect that change, but runs the old version. it seems to cache it somehow. the only way to get the changes to run is to restart PRO. py script 1 that is actually run via toolbox: import myFile myFile.runCode() py script 2 that is imported: def runCode():    import arcpy     arcpy.AddMessage('change me!')   Is there a way around this? Any input welcome! Matt ... View more