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This question is a bit old - but thought I'd mention that there is a free script for erasing with an ArcView (standard) licence (from back in the 9 releases). Check it out for future reference: http://arcscripts.esri.com/details.asp?dbid=14625


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You could try something like this: for the scenario shown above, the script below import arcpy roads1 = #path to roads layer 1 roads2 = #path to roads layer 2 r1 = [row for row in arcpy.da.SearchCursor(roads1,["SHAPE@","NAME"])] #add field to hold required string arcpy.AddField_management(roads2,"COMMENTS","TEXT") with ...


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I don't have access to ArcPy at the moment, but if you are happy working in that environment, then I reckon you'll be able to code it up pretty easy. Now, my assumption is that you can use road line endpoints, and you don't need to do any network traversal in order to build a reasonable model. Doing a network traversal would be a little harder. Here's some ...


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As Vince pointed out in a comment - you could theoretically write code to clip a map/feature service. But that would probably be a lot of custom work. You wouldnt as much be extending the Clip and Ship tool as you'd be writing a custom extraction of JSON from map services. Generally the clip and ship work flow is comprised of 2 services: GP + Map. They both ...


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I solved it. probleme is because you use iFeatureLayer as an input. Use a IFeatureClass. Friend Function DissolveFeatures(ByVal pFC As IFeatureClass, ByVal DissolveField As String, ByVal OutName As String) As iFeatureClass Dim GP As New ESRI.ArcGIS.Geoprocessor.Geoprocessor Dim Dissolve As ESRI.ArcGIS.DataManagementTools.Dissolve = New ...


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Yes you can. One could use the Great Circle method of calculating distances between two points on the Earth. An example of such calculator is available here.


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Checking the Single Part option does not result in each part's attributes being summarized separately. The tool pays no attention to the geometry when doing summaries and does all summaries before it does any geometry manipulation. Therefore, radouxju's recommendation will not solve the problem. This is the behavior I expect. The attributes are ...


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I assume that you use ArcGIS. You can use the sum statistics for the fields (see dissolve). It will compute the sum of the attribute value for your numeric fields. Make sure that you also select "single_part" to avoid non contiguous parts to merge.


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Actually it turns out the Fishnet is very fast. I tried the method that Arash described, and it worked but it was very slow. I tried open source tools that do that, and they were slow. Fishnet had an amazing performance. It is just you need to pay attention to its parameters, and it has tons of parameters. And it can be called in many different ways It ...


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Modify your spreadsheet so that Latitude and Longitude are in separate columns. Each point should have its own row with one X and one Y. Also make sure that you format your cells so that they are number values, sometimes ArcGIS is finicky about this. Use this image as a template: Save your excel spreadsheet and close it. (1) Open ArcGIS and add the data ...


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If you want a geoprocessing tool, Ian Broad put together a custom grid tool that creates quarter grids (and quarter quarter section grid). You can find it on the ArcGIS site here or on Ian's site


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The short answer is you can't produce a clipped sid image in ArcGIS 10, the format is proprietary. But you should be able to produce a clipped jpeg 2000 (jp2) which is similar. A typical sid compression is 20 to 1. In ArcGIS to get the equivalent compression on a jp2 you would use 5 in the Environment - Raster Storage form compression quality box. (That ...



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