Latest Contributions by JoeBryant1

Great question, Ray! I'm now wondering this, too (I do most of my work on the potable water side, but am getting involved in more storm projects). Our firm recently performed a pilot project with one of our clients where we used Collector and high-accuracy antennas to collect storm drain assets. We may have used a mix of centimeter and sub-meter units for this. I will ask our editors and analysts if it made much difference to them when they were cleaning up the data before delivering. My hunch is the most important part would be the difference in vertical accuracy. But I believe we used the separately measured invert distances and LiDAR data for critical elevations. ... View more

Jake, I'm also researching this right now. I haven't found a definitive answer, but here are some other posts I've found with more info: https://community.esri.com/thread/193405-should-i-split-my-service-lines-at-the-valve https://community.esri.com/thread/162125 https://community.esri.com/thread/219722-split-water-mains-at-valves From an asset management point of view, I can see it being problematic to have a separate record/ID for the small section of "main" (which is really the flange or mechanical joint) between the center of the valve and the center of the fitting. It's also more work! I also know methods differ on what is preferred for hydraulic modelling. Since demands get assigned to the nearest node, I've been told it's advantageous to break the main at the valves and assign the system valve feature class as a node in the model. I guess the hydraulic model closes pipes instead of placing barriers at points, like in the geometric network. Breaking the main at the valve allows the model to shut the small section of main between the valve and the fitting, while still providing flow to the demands that have been allocated to the valve from the other direction in a looped system. Lastly, I'm curious what the schema model for the new Utility Network expects for pressurized water distribution systems. My thinking is that if it expects splits at the valves, it will be easier to migrate if you just get it done now in the geometric network. ... View more

Joe, thanks for the explanation of GUIDs versus GlobalIDs. With that in mind, why use a GUID field instead of a standard long integer of string field, since the geodatabase is not automatically populating it for you? Is this to get around requirements REST services have requiring a field of type GUID (but not necessarily GlobalID)? For instance, it is recommended to use a GUID field for the key in relationships between Survey123 inspection records and the assets they are inspecting. ... View more

I can verify the ArcGIS Solutions tools is the way to go. You can even define if and how to create new IDs when you use the tool (I preserve our Facility IDs as it is still the same single asset, but a new GUID gets generated for our REST service and for linking to our Hydraulic Model). But I'm wondering about the origin of you question, Brian: Are you finding that splitting the mains at the valve is a requirement of the tracing tool, even when your mains are designated as complex edges? I thought that a flag/barrier could be created at each closed valve even if it's not at the junction of two lines? (PS: splitting the lines at the valves was a prerequisite of our previous hydraulic model, but I'm wondering if it's not always necessary in a geometric network with complex edges, or even the new Utility Network). ... View more

I haven't seen this documented anywhere; do MrSID files need to be decompressed to be served without Image Server (or is it just the cached tiles that are decompressed)? So the storage saved by compressing as MrSID is essentially cancelled out by the size of the cached views? ... View more

Sorry to dig up an old post (I was referred here by another ESRI Solutions Engineer). Xander Bakker‌: Do you mean that instead of creating a mosaic'd MrSID raster dataset from individual MrSID tiles using GeoExpress, you'd create an ESRI Mosaic Dataset from the individual MrSID tiles using Arc? Then, you'd create the cached map service from this Mosaic Dataset? Is this just because you prefer the Overview creation controls in ESRI's Mosaic Dataset toolset, or is there a more specific reason ESRI's Mosaic Dataset will perform better than the GeoExpress mosaic'd raster dataset. FYI: I am looking at this workflow from the perspective of not having an Image Server License, just ArcGIS Enterprise (hence publishing as a cached map service). ... View more

I agree; this should be an enhancement request. I've been looking all over for where to turn this stupid field lock off from. ... View more

What's the status of this? I am finding that adding null string values to Category Selectors using the  "+ Override" button is also not possible in Operations Dashboard. ... View more

Can you recommend a free JSON validator? ... View more

I figured out I could manually turn of editor tracking on the layer, save, run the script, turn it back on and save again. A little tedious, but it works. Now I just have to remember! It would be nice to be able to include a "disable" and "re-enable" editor tracking function at the beginning and end of this GP tool. Maybe even allow you to toggle editor tracking off in the user dialog. ... View more

Has anyone figured out how to run this script without updating the editor tracking? I'd like to retain the editor username and last edit time stamp of my field collectors. I'm currently using hosted feature services in ArcGIS Online. ... View more

The hosted feature service I'm trying to add pop-up pictures to is used by our staff in Collector. I can't share this publicly because it is editable. However, I made a View of the layer without editing rights that I have made public. When I try to calculate the Attachment ID as described above on this public view, I get: "Execution Error:Runtime Error: Cannot call member method on null. ID". (Yes, I filtered out all rows without attachments first). This is the same error I get when trying to calculate on the non-public parent feature service. Does this make sense? Can I not access the attachment ID because the editable parent feature service of the view is not shared publicly?  ... View more

Yes, that does clarify it. I had not grasped that the dictionary is more than a list; it is a list of key:value pairs. And you can return the value by using the key with the expression “DictionaryName[key]”. Joe Bryant GIS Coordinator WEST YOST ASSOCIATES direct 530.761.0226 ... View more

Xander, you're awesome! This is exactly what I needed. I hadn't thought of creating a dictionary for the correct answers. Very clean. I have not used the "HasKey" function before. This seems to be the essential piece of this script. When I read it and try to understand the logic, my head still turns in circles. I think it's going to take me a while to master that one. Hopefully others find this post and can benefit. Thanks again; you saved my bacon!  ... View more