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You won't be able to overwrite a feature class if it is locked in another application (such as when you have it open in ArcMap) or if any other user has accessed it. If you would have 10.1, you can check what are the connections established to the geodatabase (Connections tab under Geodatabase Administration). You could use arcpy: You can use ...


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I replicated the results you are looking for using the “feature vertices to points” tool and an available buildings layer on hand. Steps 1-5 is because I prefer working from a geodatabase. Can you open ArcCatalog to your working folder and preform the following steps? 1) Open ArcCatalog and navigate to your working folder. 2) Right click and selecting ...


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You can do this with the Python script provided by Esri in the "Reading Feature Geometry" section of ArcGIS Online Help. http://resources.arcgis.com/en/help/main/10.1/index.html#//002z0000001t000000 Here is the script provided in the said reference: import arcpy infc = arcpy.GetParameterAsText(0) # Enter for loop for each feature # for row in ...


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I wrote some VB code to try and handle this with an if/then, seemed a bit more simple than python. Here is the code, %BlockID (in quotes)% is the user input value, [BlockID] is the field being evaluated/written, and Expression = "Output". If IsNull([BlockID]) Then Output = %Block (in quotes)% Elseif [BlockID] <= "" Then Output = %Block (in quotes)% ...


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Just a quick point about getting the value of each point from the flow accumulation matrix. if the points (junctions) had been extracted from vector streams, probably these points do not match the corresponding points in the DEM. So, the points should first snap to the right place based on the DEM. There is a tool in ArcGIS named Snap Pour Point for doing ...



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