Latest Contributions by Jay_Gregory

I am working with a model that is using distances between points as a significant input.  My initial study area is in Texas, but eventually will cover portions of the entire US (mostly urban areas).   My question is: what should my projections be for my two point feature classes?  Currently I'm using WGS 1985 WebMerAuxSph (3857) as my projected coordinate system and WGS 1984 (4326) as my geographic coordinate system.   When I am generating near tables I am using planar distance, but could also use geodesic.   The distances in question for each study area shouldn't be more than a 5 or 10 miles between points, but could be as close as 10m (or 0 probably).   Any suggestions on the most accurate projections to use? ... View more

How can I easily calculate the elevation MSL for all points in a feature class?  I assume I can use one of AGOL's DEMs (I know it might consume credits), but at this point I don't even know what geoprocessing tool I can run.   ... View more

We recently installed and authorized Image Server role as a standalone server.  It is not part of a multi-machine deployment with our existing Server / Portal ArcGIS Enterprise.  We did add it as a Federated server to our Portal though. When I use Pro to try and share a web layer to Image Server, I get the error "the ArcGIS GIS server role is not licensed on the ArcGIS Server". If I go to Server Manager on the image server, it does say the image server role is licensed correctly.  If I go to Server Manager on my regular ArcGIS Server, it is of course not listed as an available extension because I did not configure it as part of a multi machine deployment.  Am I doing something wrong?  Does image server need to be part of a multi-machine deployment with our existing ArcGIS Server? Or for this to work would I need to set up a separate Portal and federate that with Image Server?  Unclear what the architecture should be here.... ... View more

I'm curious if  anyone can tell me the capability differences between a feature service or map service based on a feature class in an enterprise geodatabase vs from a feature class stored in an traditional database.  Lets say I have two PostgreSQL databases: one is an Esri "enterprise geodatabase" and one is just an PostgreSQL out of the box database.  Each database has a table in it - the enterprise geodatabase has a point feature class, the regular database has a table with a latitude and longitude field.  I can publish map / feature services from each of these - there are a couple different steps to publishing off the table in the regular database (specify coordinate system and x,y fields) but they both result in a map and feature service.  Is there any difference between the services? In general, what functionality might I lose by hosting data in a regular database vs enterprise geodatabase for the purposes of publishing map and feature services? ... View more

I have been working through the information located @ https://community.esri.com/t5/arcgis-survey123-blog/dynamic-choice-lists-using-search-appearance/bc-p/1143108#M4937 to develop a survey that is pulling information from a feature service for a choice list (select_one with autocomplete search appearance where you are searching a feature service url).  But I'm running into an issue: the survey performs a single query and pre-populates the list.  If your feature service doesn't return the value you're looking for in a single query then you are out of luck.  You can always change the max record results returned, either in the service itself or apparently in the way you structure the appearance cell of the XLSX, but what if your feature service contains 500k records or more?   This is not a good solution.  Seemingly, how it should work, is when you are typing into the select_one text box, it should perform a dynamic query (where=fieldname LIKE '%{inputtext}%') to retrieve a smaller list of results, similar to how the search widget in the JavaScript works.  After the 3rd character, the search widget just starts querying the REST endpoint after each character, resulting in an ever-narrowing down list of results that match your text input.   Does anyone have any ideas on how to get this to work for much larger number of records? ... View more