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The point distance tool works perfectly for this operation. Are you getting an error running it? Hi. Thanks for your reply. Yes, I get the error code: 999999. I have also tried to do the same calculation for the centerpoint for all countries in the world, but it does not work for that either. Any suggestions for what might be wrong? Thanks. Pernille
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05-30-2012
11:04 PM
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Thanks for getting back. If you can provide me the data that would be great. We are still working on to improve the performance of proximity calculations. Sure. Do you have an email address? I can send you a zip file. Pernille
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05-30-2012
08:43 AM
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Hi, I am trying to calculate the distance matrix between the world capitals. I???m using ArcGIS 10, and I have the point layer. I tried to use the point distance function under analysis tools, but it did not want to run. Do anyone have any suggestions? Any help will be highly appreciated. Thanks! Best, Pernille
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05-30-2012
08:40 AM
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Hi Parmer, I would like to investigate the slow-ness of Generate Near Table - could you tell me the version of ArcGIS you are working with? Nobbir Ahmed ESRI Geoprocessing Team Dear Nobbir, I apologize my LATE response. I used version 10.0. I guess you do not need it now... Best, Pernille
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05-30-2012
08:32 AM
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Hi, I am trying to calculate (what I thought would be an easy task) the distance matrix between the world capitals, but I do not find out how. I???m using ArcGIS 10, and I have the point layer. I have tried to use the point distance function under analysis tools, but it does not want to run. Does anyone have any suggestions? Any help will be highly appreciated. Thanks! Best, Pernille
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05-25-2012
05:41 AM
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Hope you know some Python. There are a few ways of determning adjacency in ArcGIS that I use: 1. Use a SelectByLocation to select polygons that touch/intersecct/share line segment with/etc. 2. Use the PolygonToLine tool. The output lines will have fields indicating the OBJECTID of the polygon to the right and left of the arc... I mean line (just like a good ole' coverage .aat)! Thanks for your response. I do not know any Python so I tried Dan's suggestion. But thanks any how=)
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05-25-2011
09:18 AM
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If you have the ArcInfo license, you can try the Generate Near Table tool: - Specify a small search distance (e.g. 1 meter/feet) if you are only interested polygons that share boundary with the central polygon. All the neighboring polygons should get 0 for NEAR_DIST. - Uncheck "Find only closest feature (optional)", so that you are not only getting one of the neighbors. Then you use the Join Field tool to join the near table by the NEAR_FID field with your polygon feature class by the FID field to get the SUM_OF_Length_field into the near table. Finally you can use Frequency on the IN_FID field of the near table with a SUM of the field that carries the sum_of_length values. I didn't have time to test this all the way. Hope it works for you or gives you some lead. Regards, Thanks Dan. It worked well=) I'm glad, I do not know any Python. The Generate near table used some hours (and I do not understand why) do calculate neighboring polygons, so i downloaded this instead: Find Adjacent & Neighboring Polygons. This also worked well. Thanks again. Regards Pernille
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05-25-2011
09:16 AM
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Hi. I have over 10 000 polylines spread over 430 polygons. For each polygon I have summarized the length of all polylines within the polygon. Now I would like to extend the sum to all polylines within the center polygon and its neighbor polygons. That is: if polygon 1 is neighbor with polygon 2, 3 and 4, I like to find the sum of all polylines within the polygons 1,2,3 and 4. I hope to do this for all 430 polygons, so I need a tool to help me. Do anyone know how to do this? Any help would be great=) Thanks.
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05-24-2011
01:21 AM
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Ok=) I will try to make a new thread=) Thanks again. Pernille
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05-24-2011
01:10 AM
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I got the solution from Dan: "If any polylines cross over polygon boundaries, and assuming you want only the lengths of polyline within each polygon to be counted, you will need to first do an intersect of the polylines and polygons, with the output type set to LINE. This will 'slice' each pipe at the borders of the polygons allowing you to get the correct lengths. Next you would do a spatial join, with the polygons as the target features and the polylines as the join features. Use the JOIN_ONE_TO_ONE join type. In the field map when you do the spatial join, look for the shape_length field of your polylines, right click and set the merge rule to 'sum'. This will give you a new polygon feature class with the original polygons but with the attributes of the polylines joined onto the end. The shape_length field from the polylines will contain the sum of the lengths of the lines within that polygon. Hope that helps Dan "
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05-24-2011
12:18 AM
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Hi Dan. This worked great! Thanks=) It was so simple, still I used days trying to solve it...haha... I have one more "problem" to solve, maybe you can help me? I'm trying to find the sum of all polylines (same data) for all neighbor polygons of every polygon in my sample. That is: if polygon 1 is neighbor with polygon 2, 3 and 4, I like to find the sum of all polylines within the polygons 2,3 and 4. I hope to do this for all 430 polygons, so I need a tool to help me. Do you have a solution for this? If not, thanks for all you help anyway. Pernille
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05-24-2011
12:17 AM
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Hi. I have over 10 000 polylines spread over 430 polygons. I would like to sum the length of all polylines within each polygon. Do anyone know how I can do this in ArcGIS 10? I tried Hawth's Analysis Tools for ArcGIS, but it does not work with ArcGIS 10. Any help would be great Thanks.
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05-23-2011
03:07 AM
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Hi. I have over 10 000 polylines spread over 430 polygons. I would like to sum the length of all polylines within each polygon. Do anyone know how I can do this in ArcGIS 10? I tried Hawth's Analysis Tools for ArcGIS, but it does not work with ArcGIS 10. Any help would be great:) Thanks.
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05-23-2011
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