[troelsSteegin]

Is there a public way to add custom Blueprints (https://rerun.io/docs/concepts/blueprint) and Visualizers (https://rerun.io/docs/concepts/visualizers-and-overrides)? It looks like yes for Blueprints, reading through https://rerun.io/examples. I am guessing "not yet" for Visualizers? For example, I'd like to be able to render a Sankey diagram from a "dataflows" Blueprint through the Viewer (https://rerun.io/viewer). I realize that non-spatial is not Rerun's focus.

[jgoertler]

Custom visualizers are also supported—in fact the graph view started out as an external visualizer.

Here is a tutorial: https://rerun.io/docs/howto/visualization/extend-ui#custom-v...

And here is the corresponding code example: https://github.com/rerun-io/rerun/tree/main/examples/rust/cu...

To write your own graph visualization, you can look into the implementation of our graph view: https://github.com/rerun-io/rerun/tree/main/crates/viewer/re...

In the future we want to provide more types of layouts, dataflow is high up on that list. May I ask what kind of data you want to visualize? Since you mentioned Sankeys, in your case does the structure of the Sankey change as well, or do you only expect the edges to grow/shrink over time?

[troelsSteegin]

Thank you for your reply. I am thinking about variable dataflows through a fixed set of nodes -- so, the latter, growing and shrinking edges. The application would be visualizing system dynamics. The stages in the Sankey would be organized by degree of distance from an "intervention" node.