Dynamic endpoints layer

Bud — Wed, 11 May 2022 19:00:03 GMT

Oracle 18c; 10.7.1 EGDB; SDE.ST_GEOMETRY.

I have a polyline FC. I want to create a dynamic layer that will display the startpoints and endpoints of the lines as points. I'm looking for an option that is dynamic, such as:

Create something like an XY event layer, except it shows the startpoint and endpoint of lines.
Or, an option in the FC symbology to display the start/endpoints as points. Similar to we could do with endpoint arrows in ArcMap.
Or, custom Arcade-based symbology. Write an Arcade expression to isolate the start/endpoints of the lines. Display as points.
Other?

I don't want to:

Create a static point FC (via a GP tool, python script, etc). Nor do I want to update such a FC via attribute rules or a db trigger.
Create static XY fields in the FC.
- For example, populate XY fields with an attribute rule or a database trigger. That would require creating 4 permanent fields (start_x, start_y, end_x, end_y). The extra fields would add clutter to the FC and be too much work to implement in other FCs.
Update a static point FC on a schedule. I want the data to be dynamic. For example, if I create a new line, I want to see the start/endpoints immediately...as soon as I save the edit. I don't want to wait for a scheduled job to run.
Use ST_GEOMETRY functions to get the start/endpoints. That has proven to be far too slow. And the ST_POINT subtype geometry that gets returned by ST_GEOMETRY functions is problematic in ArcGIS Pro/ArcMap.
Convert the FC from ST_GEOMETRY to SDO_GEOMETRY in order to get the endpoints in an SQL query. That's not possible due to countless dependencies on the ST_GEOMETRY shape field in the FC.
Create a geometric network to show the start/endpoints. I don't a need geometric network.

As mentioned, the solution needs to be:

Dynamic.
Fast (just as fast as XY event layers, which are surprisingly fast)
Easy to set up
Symbol should be points, not arrows
It would be ideal if we could visually differentiate between startpoints vs endpoints (i.e. different colors). But that's not a must-have; it would be acceptable if the start and endpoints for a given line were merged into a multi-part feature.
I don't need to be able to select an individual point with the select tool. I just need to see the points in the map.
Use case: ArcGIS Pro editing, Portal/Field Maps, etc.

Is there a way to create a dynamic endpoints layer in ArcGIS Pro?

Re: Dynamic endpoints layer

JohannesLindner — Wed, 11 May 2022 09:32:33 GMT

Purely symbology based:

Format Line Symbol, Add Marker symbol layer
Format the markers to be placed at extremities
Profit

You can also add a second marker layer and format the marker layers to show at the start and end extremities, then symbolize them differently. eg start points as dots, end points as open circles:

Re: Dynamic endpoints layer

Bud — Fri, 13 May 2022 19:15:25 GMT

Anyone know if it's possible to upload that endpoints symbology/layer to ArcGIS Online?

topic Re: Dynamic endpoints layer in ArcGIS Pro Questions

Dynamic endpoints layer

Re: Dynamic endpoints layer

Re: Dynamic endpoints layer