Latest Contributions by DuncanHornby

I like this idea as sometimes I want to see the actual value stored. But if they do add this as a new option I think there should be some sort of visual flag indicating that the field has a domain but is not showing its description. ... View more

I think you need to give more information. For example what is creating points every 10 minutes? This means your dataset is changing 144 times a day. So what mechanism is going to trigger the analysis? I'm guessing you have some live feed coming into a server? If so you probably want to use the GeoEventProcessor. I have no experience of this so someone else would be better placed to suggest how to use that. There is this tool that creates hexagons. I guess this need to be built only once? ... View more

The following python code will achieve what you want. It cycles through all the layers getting their extents and placing them in a temporary featureclass which you can then get the extent of and zoom to. import arcpy # Stop temporary layer being loaded into map arcpy.env.addOutputsToMap=False # Create a list of layers in map document mapdoc = arcpy.mapping.MapDocument("CURRENT") list =arcpy.mapping.ListLayers(mapdoc) # A list of extents extentList = [] # Cycle through layers grabbing extents, converting them into # polygons and adding them to extentList for layer in list:     if not layer.isGroupLayer:         desc = arcpy.Describe(layer.dataSource)         ext = desc.extent         array = arcpy.Array([ext.upperLeft,ext.upperRight,ext.lowerRight,ext.lowerLeft])         extentList.append(arcpy.Polygon(array)) # Create a temporary FeatureClass from the polygons arcpy.CopyFeatures_management(extentList,r"in_memory\temp") # Get extent of this temporary layer and zoom to its extent desc = arcpy.Describe(r"in_memory\temp") ext = desc.extent mapdoc.activeDataFrame.extent = ext # Clean up arcpy.Delete_management(r"in_memory\temp") del ext, desc, list, array, extentList, mapdoc ... View more

You can interactively flip a polyline as described here. There is also a geo-processing tool. ... View more

The third parameter of the split tool, it should be a field that holds a unique ID such as the FID field. ... View more

Are you setting the Shape field to be the Split Field? I think this parameter needs to be a field containing a unique ID, so a numeric field like ObjectID or FID. ... View more

Some sample code: public sub test()      debug.print "hello" end sub ... View more

I'm stumbling around GeoNet, not sure what I am looking at. Can't seem to find where one would post a desktop developer question. Of cause the irony in your question is would we find the guide if someone posted it? ... View more

Peter, I am not aware of a built in tool that can do this. Can you program in Python?  You could create a cursor that cycles through a workspace then get the attribute table and run some sort of update cursor on the specified field. Duncan ... View more

Carsten, The ISpatialFilter allows you to specify a spatial query AND an attribute query through the WhereClause. If you have joined your tables you should be able to take advantage of this? Duncan ... View more

Evan, It is not clear how you get a handle on the raster. Does your AddIn code do the actual loading of the raster into ArcMap or is it a button that grabs the raster from the TOC (which was manually added by you) and then do some symbolizing? Without seeing the code one can only speculate. Have you got globals that may be holding a lock? Are you destroying every object including workspaces? I cobbled some code together from random stumbling around the internet looking at this problem. I often use this in an to clean up. Private Declare Function SetProcessWorkingSetSize Lib "kernel32.dll" Alias "SetProcessWorkingSetSize" (ByVal process As IntPtr, ByVal minimumWorkingSetSize As Integer, ByVal maximumWorkingSetSize As Integer) As Integer Public Sub FlushMemory()     System.GC.Collect()     GC.WaitForPendingFinalizers()     If Environment.OSVersion.Platform = PlatformID.Win32NT Then         SetProcessWorkingSetSize(System.Diagnostics.Process.GetCurrentProcess().Handle, -1, -1)     End If End Sub ... View more