regulatory diagrams: use Google Drawings, interactive Shiny

[bbest]

Can use a "live" Google Drawing, which doesn't require any desktop software and is easy to edit.

Examples:

• Test Google Drawing: edit, svg

  • Pages from PEV_2009_Handbook_Siting Methodologies for Hydrokinetics: edit, svg

• Rendered "live" (edit drawing, refresh page, voila!) in this example regs_svg.html:

[bbest]

From Use Shiny.setInputValue to register the clicking of SVG; regs_app/app.R in https://github.com/mhk-env/mhk-env.github.io/commit/85db38dad526b86ef7afd60c9e2e207dd3211af5

Amazing! Clicking on red circle or blue square registers in Shiny ✨

[bbest]

https://github.com/marineenergy/www/blob/master/regs_app/app.R

[bbest]

We could use shiny::renderUI() to update either the SVG plot or drop-down lists based on element clicked.