Latest Contributions by ChrisDonohue__GISP

I don't know the exact solution (I'm not an SDE expert), but do want to pass on that at the City I am at we have many people viewing the information while others edit the data.  That's one of the big advantages of an enterprise geodatabase (SDE).  For example, it is very common to have dozens of people viewing our Parcel data while at the same time we have two people editing the Parcel data (in versions).  Locks occasionally are a problem, but not a major issue.  So the fact you are getting lock issues seems odd. To help the SDE experts on GeoNet provide ideas, can you elaborate on the following: Is the system structured so Default is protected? Is it a Versioned environment? What version of ArcGIS are you using and what enterprise geodatabase (and version)? Geodatabase  Chris Donohue, GISP ... View more

If the transmission towers are coincident with the lines and the lines are all connected without gaps (I know, probably too much to ask with CAD data sometimes), one workflow would be to split the transmission line by the tower points, add attribute fields to the split lines for start and end, then use a Join to add the tower information to the lines.  The result will be a line feature class attributed with the tower ID for each end of the line that you can then read the distances off of. Here's a similar question that was posted on GeoNet recently.  The full process is described in detail at the end of the thread. Distinguishing lines that connect different type of points  You will also need this: Split Line at Point—Data Management toolbox | ArcGIS for Desktop  The one catch is that I don't know if ArcGIS Pro has all this.  Chris Donohue, GISP ... View more

Some more detail on the options  Dan Patterson  mentioned: Alter Field—Help | ArcGIS for Desktop Alter Field Geoprocessing Tool Delete Field—Help | ArcGIS for Desktop Delete Field Geoprocessing Tool Chris Donohue, GISP ... View more

I agree with Neil Ayres in that the shift is not of any major consequence and is likely at the limits of the software to resolve.  Note that if you are looking at the linework at a scale of less than 1:1 in ArcMap that what is seen is often a visual artifact.  ESRI Tech support has confirmed that below 1:1 there can be visual results shown that are not representative of the data.  Strangeness - gaps unintentionally created while editing  One way to check if the depicted shift is of any consequence is to evaluate it against the XY Tolerance setting for the data.  If the shift is below the tolerance, then the feature are considered coincident even though they seem to be off by a small amount. ArcGIS Help (10.2, 10.2.1, and 10.2.2) (scroll down to Tolerance section) Tolerance\resolution concept, (GeoNet discussion on XY Tolerance and Resolution) Chris Donohue, GISP ... View more

Give it a try and see if it works for your data.  The more one does GIS the more one realizes there are several ways to do any task.  So if this doesn't work out, post what the issues were and what the conditions are that need to be met, and I'm sure folks here on GeoNet can come up with other ideas.  For example, I suspect several folks on here could come up with a Python Script to do what you need. Chris Donohue, GISP ... View more

Expanding on what Darren Wiens suggested, if it turns out the shapefiles cannot be recognized by your copy of ArcGIS, something to try would be to run the Check Geometry (Data Management toolbox) Geoprocessing tool ArcGIS Help (10.2, 10.2.1, and 10.2.2) - Check Geometry Shapefiles are a fairly open format and not all shapefiles are ESRI-complaint, so Check Geometry may point out any issues.  If issues do show up, one can run Repair Geometry (Data Management) to attempt a fix on the shapefile.  While not a guaranteed fix, I've found it quite often turns a bad shapefile into something usable. ArcGIS Help (10.2, 10.2.1, and 10.2.2)  - Repair Geometry Note - be sure to back up your shapefiles before running this tool, as Repair Geometry alters the input file. Chris Donohue, GISP ... View more

I don't know the answer, but let me tag a group that may be able to help: https://community.esri.com/community/gis/analysis/spatial-statistics  Chris Donohue, GISP ... View more

Is your Excel Data of points that make up the polygons?  Also, is there an ID field that identifies which points are part of which polygons?  If so, the workflow would be check the Excel data to make sure it is "GIS compatible", import the Excel data to GIS, save the resulting import as a point shapefile (or feature class in a geodatabase), then build the polygons from points. Before importing to ArcGIS, be sure the Excel spreadsheet has been "cleaned up" to GIS standards.  This will help avoid issues after import. Formatting a table in Microsoft Excel for use in ArcGIS—Help | ArcGIS for Desktop  Adding the Excel table to ArcGIS Adding a Microsoft Excel table to ArcMap—Help | ArcGIS for Desktop  Once the Excel data is in ArcGIS, be sure to save it out as its own shapefile, as the initial display is an "Event layer" and is just temporary. To convert the points to polygons, there are several methods.  Note that some depend on what license level one has and one method involves a third-party add on (ET Geowizards).  For the latter, I believe one can download a demo copy for free. Also, some of the methods rely in part on using a File or Personal Geodatabase during the processing.  If so, from the beginning import save to a geodatabase, do the processing, then export the final product once the polygons are completed to a shapefile. How To: Convert a point feature class to a polygon feature class  Chris Donohue, GISP ... View more

There are several ways to do this, but it depends on what you are working with and what type of shapefile you want.  Some questions to help clarify what you are after: 1.  Will the resulting shapefile be of points, lines, or polygons? 2.  What version of ArcMap do you have and what license level? Chris Donohue, GISP ... View more

Some questions to help clarify what you want:  When the nodes get reduced to one, does it matter where the resulting one "collapsed" node is spatially?  Does it need to be at one of the existing nodes to be collapsed locations or can it be a totally new place, like the central location of all the collapsed nodes? Is there any constraint on the nodes location in relation to the existing line features? Chris Donohue, GISP ... View more

Another thing to try is to "save down" the CAD file to an older version before converting.  You will likely need to do this as AutoCAD 2016 is not supported by ArcGIS 10.2.2.  The most recent CAD format that is supported is AutoCAD 2014. ArcGIS Help (10.2, 10.2.1, and 10.2.2) - Supported CAD formats in ArcGIS Chris Donohue, GISP ... View more

Welcome to the world of water!  Asking "what is NHD" is sort of like asking "what is GIS" - it's a broad question, and not quickly answered. So as a starting point, I'd look here to get an overview of what NHD is: U.S. Geological Survey - National Hydrography Dataset  You can locate the USGS contact for your region here: MOU / Info  I suspect these contact(s) can tell you who is updating the NHD data for your area, and if it is your organizations responsibility, what the current process/expectations are. Once you get a better idea of what the NHD is about and what you will be doing with it, there are folks on GeoNet that use the data often and can answer specific questions.  For example, I suspect many of the folks in this group are familiar with the data: Arc Hydro  Chris Donohue, GISP ... View more