Latest Contributions by Jens_Dalsgaard

For a meshed network subnetworks meet at open breaking units (as well as at the subnetwork controller). Typically having a subnetwork per transformer (for three winding transformers we would even have two subnetworks) very quickly an electric utility will end up having tens of thousands of subnetworks. Each of the subnetworks (Subnet Lines) generated will have a subnetwork name together with a few other attributes (https://pro.arcgis.com/en/pro-app/latest/help/data/utility-network/subnetline-feature-class.htm). Coloring Subnet Lines offers a quick overview of how the grid is fed and where tie breakers exist. Yet, coloring the many thousand subnet lines (coloring by subnetwork name, what else can I do)) we get this warning: Well, I have to click Yes to have some sort of useful coloring.  Besides likely not being nice to performance having coloring based on a very large number of unique values, we also quickly see the problem: Adjacent subnetworks (subnet lines) are assigned colors very alike (or perhaps the same). In the screen dump below, the green arrow indicates a place where adjacent subnetworks are assigned contrasting colors whereas at the red arrow two adjacent subnetworks are assigned the same color:    My propsal to Esri is, that when updating subnetworks, you also assign a coloring-number to each subnetwork (an extra attribute to be added). Not a color code (#3380ff) - just a number from 1 and up. Then I may choose whether 1 is represented by red, green, ... In a previous proof of concept, I showed that the entire low voltage grid (real world data for a low voltage grid feeding several hundred thousand customers) could be colored using less than 15 colors (it's years ago - I don't recall the exact number - it was less). As the utility network is persisted in a graph, without being an expert on these matters I believe such coloring-numbers could be easily generated using the so-called graph edge-coloring:  https://en.wikipedia.org/wiki/Edge_coloring  This way I could symbolize my subnet lines based on not thousands of subnetwork names but based on less than 15 coloring numbers.  And I would be sure that adjacent subnetworks would be assigned contrasting colors; It's quite a lot easier to define 15 contrasting colors than to do the same with thousands...   ... View more

The branch versioning holds complete history allowing the user to view data for a certain date and time back in time. Is there any way of (service allowing) requesting history for a specific feature / record? It would offer great value if I where able to easily visualize history for a single feature (the breaker was created 4 July 12:15 PM, the attribute SwitchingStatus was changed from Open to Closed on 6 October 15:20 PM, ... etc.)  ... View more

Upon insert or move of a feature I would like to call a service (using X and Y of the feature as input) and use the returned result for updating an attribute on the feature in question. This seems like something I should write an Arcade expression for. Apparently this is not supported for now.   I believe such capability is highly relevant considering Esri promoting the service-based architecture. Anyone out there agreeing, please give it a vote.   Esri - should you already be considering this please let me know of the roadmap.   Best regards    Jens Dalsgaard ... View more

https://community.esri.com/message/952524-is-it-possible-to-create-attribute-rule-arcade-expression-calling-webservice-and-processing-result  ... View more

Upon insert or move of a certain feature I would like to call a service (using X and Y as input) and use the returned result for updating an attribute on the feature in question. This seems like something I should write an Arcade expression for. But does Arcade support the call of a service and using of the returned result? ... View more

Using the ArcMap Utility Network Analyst tool bar I may manually 'Add a junction barrier to the network'  using the 'Add Junction Barrier Tool'. This allows me easily specify places where e.g. the 'Find Connected' Trace should stop. I need to create a Python script utilizing this same capability, and to me it seems that the TraceGeometricNetwork_management tool is the one that I should use to accomplish the tracing tasks. But I cannot seem to get around the challenge of adding barriers. I keep getting the error message: ExecuteError: Failed to execute. Parameters are not valid. ERROR 000800: The value is not a member of .... followed by a list of feature classes being part of the geometric network ...    Failed to execute (TraceGeometricNetwork). Documentation for TraceGeometricNetwork (Trace Geometric Network—Help | ArcGIS for Desktop ) doesn't state any requirements that the feature class holding barriers must be part of the geometric network: Point features representing a set of barriers. Barriers define places in the network where traces cannot pass through. If you are only interested in tracing a particular part of your network, you can use barriers to isolate that part of the network. Barriers can be placed anywhere along edges or junctions, but junctions will be considered first when both a junction and edge are found at the location. The feature will be treated as disabled and will not be considered during the trace, unless you've set the in_trace_ends parameter to TRACE_ENDS to purposefully find features stopping the trace. I need to be able to define my barrier points from a set of business rules and not restricting it to a certain feature class (as entirety or as a subset thereof) being part of the geometric network. Is it me or is it a bug. If it's a bug, I find this bug serious. Working with utility customers we're restricted / advised to using the ArcMap 10.2.1, so upgrading is not really an option. Hoping for a swift solution. ... View more