Latest Contributions by ChrisDonohue__GISP

This definitely seems odd.  I wonder if the projection engine is corrupted, maybe?  The reason I speculate on this is I just ran our City aerial (Roseville California, CA State Plane 2 NAD 83) through a Project Raster (Data Management) geoprocessing tool set to Teale Albers NAD 83 feet and it worked fine.  The resultant image lands where it is expected to when brought into a mxd. What version of ArcGIS are you using (I'm on ArcGIS Desktop 10.4.1)?  Or is ArcGIS Pro being employed? If you have ESRI Support, it might be worth it to check with them, as this seems unusual. Resultant image settings after Project Raster: Chris Donohue, GISP ... View more

Besides what Joe suggested, check the mxd to see if it was set to "Relative Paths".  Usually mxds default to "Absolute Paths".  By changing the mxd setting to "Relative Paths" the data will be found if it is in the same relative location.  This can be very handy in situations like this. To check the path settings in an mxd: File Map Document Properties... Then on the window that shows up check the box by Pathnames: Referencing data in the map—Help | ArcGIS for Desktop  Chris Donohue, GISP ... View more

I don't know the answer offhand, but this older thread covers some aspects of this issue that people have encountered.  In particular, check out the second to last comment about density by Jay Sandhu . What are the functional limits of a Vehicle Routing Problem? (VRP)  Chris Donohue, GISP ... View more

If you have the polygons attributed such as to distinguish the ones you want to remove (buildings) from the larger parcel, one could go into edit mode, do a Select By Attribute to just pick the buildings, then hit the Delete button on your keyboard (or alternately in the attribute table hit the X icon that represents "Delete Selected".  Or as a safer route, instead do a Select By Attribute for the non-buildings (don't go into Edit Mode) and then export as a new feature class. The tricky part will be if the polygons are not differentiated. Using Select By Attributes—Help | ArcGIS for Desktop  Chris Donohue, GISP ... View more

To provide a more conceptual background on what Dan_Patterson suggested: What is a utility network?—ArcGIS Pro | ArcGIS Desktop  Benefits of a utility network—ArcGIS Pro | ArcGIS Desktop  Chris Donohue, GISP ... View more

Somewhat related.  May trigger some ideas from folks on a way to do what the OP is asking. Travelling salesman problem - GIS Wiki | The GIS Encyclopedia  Chris Donohue, GISP ... View more

Some questions to help in helping folks answer this: Is the data in a Geometric Network?  Or are a Network Dataset?  Or something else? Are you using ArcGIS Desktop?  ArcGIS Pro?  ArcGIS Online?  Another platform? What version? If you have a geometric network, there apparently is a Trace function that may work for what you need (I have never used it myself): About tracing on geometric networks—Help | ArcGIS for Desktop  Chris Donohue, GISP ... View more

Besides what BBaldwin-esristaff suggested, do you have an ArcGIS Online Account?  Maybe the account is not working? Chris Donohue, GISP ... View more

So true.  Chris Donohue, GISP ... View more

Well, the what three words result would be 3 meter accuracy.  Lat/Long may cause the responders to get a much more approximate location, further from where you are.  Just sayin'.  Chris Donohue, GISP PS - Joe, don't you already have all the First Responders on your speeddial already anyways?  ... View more

Actually, Jeff Ward  has a good point, which won't be obvious to people who don't do 911.  Will the dispatcher who receives the call write down the 3 words with the correct spelling, given that words can be misheard and some words sound alike.  Going further with this, I wonder if anyone has done an analysis of all the words chosen to be used in the What Three Words system to identify if there are words that sound alike and therefore can be mistaken?  Sort of like the Soundex searches we do in evaluating road names to ensure they are not so similar in name that the pronunciation could make a dispatcher choose the wrong one. Chris Donohue, GISP ... View more

At the ESRI Conference last week there was a presentation by the US Marine Corps of how they are modernizing the addressing of all their bases throughout the world to be NextGen 911 compatible.  This included using the What Three Words system as a fallback besides the more traditional street centerlines and address points.  Their rationale was that if someone was far out on a training range or another location where there were not traditional addresses they still could be located as long as they had a smart phone.  The dispatcher could instruct the caller to download the free What Three Words app and then ask them what three words popped up.  This would give responders a 3 meter locational accuracy instead of the far less accurate fix from triangulating cell phone signals. 911 GIS  Chris Donohue, GISP ... View more

Tagging:  https://community.esri.com/community/gis/analysis/spatial-statistics for greater exposure. Chris Donohue, GISP ... View more

It was nice to meet in person the folks who valiantly keep GeoNet running behind the scenes despite the best efforts of all of us troublemakers contributors.  Chris Donohue, GISP ... View more

Exporting out of ArcMap to an electronic format is often problematic.  What you are experiencing is very common.  And what is going on is not obvious. The primary reason symbology like highway shields come out not as expected when exporting from ArcGIS Desktop is that they are constructed "behind the scenes" in ArcMap using proprietary fonts.  These fonts are owned by other entities than ESRI and ESRI is only allowed to use them for basic display.  But exporting them into an electronic vector format puts them into a realm outside of the licensing ESRI has.  Displaying them electronically requires a full license on the computer to use that proprietary font.  So what ESRI has chosen to do is to do "font substitution" in an attempt to keep it usable without making every person who wants to view the electronic font buy a full licensed copy of the proprietary fonts and put them on their computer.  However, that's not all.  Even though a GIS user intentionally checks that "Embed All Fonts" option in the export options in ArcGIS, that often does not suffice.  From what it was explained to me by ESRI Tech Support and in a presentation I saw at the User Conference several years ago, that "Embed All Fonts" setting is not an absolute solution to this issue - it's more like "we will try".  And it comes up short quite often. So the question then is, what can one do about this.  One workaround I have found is to export as a jpg first, then open that jpg in Photoshop or another imagery package and make the PDF from there.  As long as you don't need the individual layers intact in the resulting PDF (so a recipient can turn them on and off), this usually works well.  Chris Donohue, GISP ... View more