Improved polygon selection tool

[rsimon]

An enhanced & more feature complete polygon selection tool which takes into account various user feedback received over time. Such as:

• [x] "Add point" feature
• [x] "Remove point" feature
• [x] Crosshair feature
• [x] Close polygon on double-click (but without creating a new point)
• [x] Snap cursor to first point when nearby
• [x] Multi-select + move multiple points
• [x] Responsive UI compatiblity
• [x] OpenSeadragon compatibility
• [x] Start selection on click as well as drag (not solve-able in the tool alone, requires a change to base libs)
  • [x] Annotorious
  • [x] AnnotoriousOSD

[rsimon]

Note that the better-polygon plugin will only work with Annotorious version 2.5.9 upwards!

[rsimon]

Now released here: https://github.com/recogito/recogito-client-plugins/tree/main/plugins/annotorious-better-polygon

[dianamarginean]

@rsimon What changes should I apply to base libs in order to enable draw on click?

[rsimon]

Did you try the drawOnSingleClick init option? https://annotorious.github.io/api-docs/annotorious/

[dianamarginean]

@rsimon is there an option to set Snap cursor to first point when nearby option to false?

[rsimon]

Unfortunately, no. (I agree it would be a good feature, though. That + perhaps the ability to set a custom pixel distance for the snap to activate.)