Questions about Facets structure and dependencies about facets

[jameswex]

The deps on Tensorboard are just for the build scripts to build the project into its compiled form that make it usable both internal to Google and external as through its GitHub repo. That decision was made when Facets was first built, as getting it to build correctly in both environments and with its use of Typescript, Polymer, and Protocol Buffers was surprisingly complicated (and TensorBoard had solved it).

Facets Dive is rendered using Polymer 1.x elements and the THREE.js library (for the main display of dots/images Dive).
Facets Overview is rendered using Polymer 1.x elements and the plottable.js library for chart creation/rendering (which is built on top of d3.
Both visualizations make use of d3 as well.

Both visualizations are built as polymer web component elements (facets-dive and facets-overview), and internally make use of other polymer elements as sub-components. This was done as polymer elements were a popular choice for web component creation when Facets was developed, and at the time TensorBoard was all-in on Polymer.

Removing the Polymer dependency from Facets would require a complete rewrite of both visualizations and would be a breaking change for users of the elements. It isn't on our roadmap. But the creation of very similar visualizations could certainly be done through another framework (react or lit-element, for two examples).

[mauricioklein]

Thanks, appreciate your reply!