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This is an interesting problem... My first thought was along the lines of using the Central Feature Tool (which boils down the A points to a central point, etc) and then create Thiessen Polygons about those 4 centralized points. From there you could slice and dice up the four thiessen polygons into five. There are also the the Mean Center, and Median Center tools as well to use for your 'seed' location All these can be found under the Spatial Statistics Tool Box. After thinking a bit on the approach above, my mind started to wander towards a Network Analysis approach: if you had a network you could use the 'boiled down' points to anchor service areas. This approach is a little more realistic than thiessen polygons as you can easily model barriers as you descibe. Maybe either of these suggestions will spur further discussion for you... Good Luck-
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09-13-2012
11:39 AM
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Hi Joe - Is there any chance the ArcGIS for Local Government - Address Management add-in has the tools you need? Maybe the Create Road and Split Intersecting Road tool? http://resources.arcgis.com/en/help/localgovernment/10.1/index.html#//028s00000073000000 If not, you might contact the Local Government folks or post your suggestion to the ArcGIS Ideas site: http://ideas.arcgis.com/idealist?c=09a300000004xET&category=local+government I'm looking at the Local Govgernment 101 pages now, and don't see anything so far. I'll post a request to the ideas page. Thanks ! edited moments later: looks like the description of the tool mentioned should do it; I'll download it and see how it works....
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09-12-2012
11:14 AM
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Andy- I didn't even know there was an option so thanks for the tip. I have a specific mxd that I use to edit a set of points that is forever changing; I checked classic snapping, saved and closed the mxd. I reopened the mxd and it was still checked. Then I opened a blank document in another ArcMap session, and as you describe it's un-checked. Here is a work around; I checked classic editing in an empty ArcMap session. Then I saved the mxd. (MyEdits.mxd) When I reopened it, it was still checked. I agree it should be writing that setting to the default.mxd. Maybe it's a reported bug? [edited moments later] I couldnt find a bug listing for it, but I did add it to the ArcGIS Ideas page
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09-12-2012
10:50 AM
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There is a utility on the Editing Labs group on arcgis.com that will divide a line multiple times and leave a remainder. You can download the add-in from http://www.arcgis.com/home/item.html?id=d5d27ee47330434b9a96b91136a0118f Other Editing Labs tools for ArcGIS 10 (make sure the filter at the top of the page is Show: All Content, not Web Content Only): http://www.arcgis.com/home/group.html?owner=Doug&title=Editing%20Labs Hey Rhonda- Any chance the folks at the editing labs would be interested in bringing back the 'House Number Tool'; it would split a street centerline and then do the math for proportioning address ranges. Slickest thing since hash browns. I miss it terribly!
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09-11-2012
12:49 PM
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Dear All, I have found very few posts related to my issue. The issue was SDE always returned me a capitalized table feature class (like WATERQUALITY), but a mixed upper and lower case name (WaterQuality) is what i preferred. I contacted ESRI support and was told that SDE has the ability to store a table feature class with mixed cases. I was asked to install the SP 2 (V9.3.1 SDE and SQL Server 08) and the same issue. I can test altering the collation of the database, but want to see if anybody already had the same issue and could your experience. I appreciate any replies. Thanks Russel I've never had a problem with it; all my feature classes are mixed case. I use SQL Server Server 2008 R2, and before that SQL Server 2000. Why would you need to change the collation of your SQL db? I'm just not sure that a collation in your db has any bearing on mixed case file names. Why not just change the names to how you want them in ArcCatalog?
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09-10-2012
12:45 PM
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I have a geodatabase and I want to reproject the entire thing. Do I have to do it one feature dataset at a time or is there a way to do it in one shot? Scott Spatial reference/projections are a property of the feature class, not the geodatabase. You might look at Importing Multiple feature classes and set the OutPut Coordinate System using the environment button of the tool. See the attached sequence of screen shots....
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09-08-2012
09:31 AM
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That's a really cool procedure Jay. Thanks for sharing!
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09-07-2012
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I would think you would need to trap that information at the time of an edit; I use a trigger in SQL server, described here. Doesn't v10.1 have a built in utility to track edits and who made them?
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09-06-2012
03:44 AM
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I assume you created a point feature class of the schools by adding the xy values to an arcmap session. Right? Then you performed the spatial join with the counties feature class. I also have to assume that your counties feature class has the fips code in the attribute table. From the on line help for spatial join: By default, all attributes of the join features are appended to attributes of the target features and copied over to the output feature class. You can define which of the attributes will be written to the output by manipulating them in the Field Map of Join Features parameter. Spatial Join is the way to do what you want to do. You need to specify how the join is performed and what attributes will be carried over. You are performing a point in polygon geo-process. It's bread and butter to what we do. There are more than a few post posts regarding spatial join, easily found with a search. Hope this helps-
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09-05-2012
06:48 PM
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Geodatabase arriving from outside source, will I be able to change the Coordinate system, projection, and datum?? from what I remember its an easy fix...or am I thinking of something else. As long as you know the projection parameters of the incoming data, you can project it into whatever you need it in.
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09-05-2012
01:15 PM
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Is this a file geodatabase, personal geodatabase or is it served through SDE? If the latter, I suspect your user permissions have been changed due to the upgrade, assuming you upgraded Server/SDE as well. Not sure what to tell you if its a file or personal geodatabase...
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09-04-2012
11:58 AM
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Hi there, I'm new to ArcGIS and testing its capabilities for possible implementation in a global logistics company. I'm wondering if there is a way to easily factor country borders into network analysis. To avoid customs delays, we omit service links, or drives from our analysis that cross nation borders in most cases (US to MEX, US to CAN), but allow it in other areas where cross border travel can be done without incident (EU nations). So right now I'm messing around with the service area layers...If for instance I wanted to generate a polygon in Detroit that doesn't spill over the border into Ontario and vice versa, how might this be done? I appreciate the help in advance. Thanks, JR You should be able to lay down a barrier at the border.
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08-30-2012
07:57 AM
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I love that error message! That one was always my favorite, because of its length and complexity. It was like an error novella. We knew it was a problem, so it is gone now in 10.1. I'm not sure if it was service packed back to 10.0. I'll check that. As for what it means, your output shape is set to "True Shape with Measures". This gives you not just the route shape, but linear referencing M values along the shape. For example, for a 10 minute long route, you can see where you are 2 minutes, 5 minutes, 7, minutes along, etc. It used to be a problem when there was sudden additive cost along a route that should have M values. The error message lists "positive-impedance junctions, turns, or additive point barriers". Those are three examples of a place where you might add time to your route. For example, an additive cost barrier of 2 minutes turns your route from 10 to 12 total minutes. Previously, we couldn't handle generating Ms where, using the 10 minute route example, it went from 0 to 5 minutes, then had a 2 minutes additive point, then went from 7 to 12 minutes. When additive costs were encountered, we still solved the route, but we disabled M values in the output route shape. A warning would be generated letting you know that, even though you specified that Ms should be in the output shape, they will not be present. So, change your output shape to "True shape", instead of "True shape with measures." Then, you can turn warning messages back on. Thanks Patrick! It just took me totally by surprise; we were having an issue with a station not routing to a call it should have gone to (through CAD) and ran it manually in ArcMap. My only thought was "Oh, $*** ! What Happened?!" I will uncheck the true shape with measures when I get back there next week....
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08-30-2012
07:53 AM
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When I run any kind of solve, I get the following message: Warning: Gaps have been detected in the cumulative impedance values of the output. This can occur due to the presence of positive-impedance junctions, turns, or additive point barriers along the output edges. Measures have been disabled for output in this case Can anyone give a clue as to where to start looking? Edited an hour or so after original post.... This is really just a warning; what it's talking about is a mystery, but I just turned off warnings in the Network Analyst Toolbar/options. Fixed! Remember the song that 'Kip' sings at his wedding in Napolean Dynamite? ..."Yes I love technology..."
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08-29-2012
08:39 AM
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Another perspective might be that of Product Life Cycle.
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08-28-2012
11:03 AM
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