Transform interaction: missing polygon vertex editing from OL Modify

[aleupons]

Hello,

There is an issue with the library interactions: if you want to replace the native OL interactions (Select, Modify, and Translate) with Transform, you lose the ability to edit polygon vertices, which is a core feature of the OL Modify interaction.

The two possible workarounds are not ideal:

• Using both Modify and Transform interactions at the same time can cause synchronization issues with Select, is visually confusing, and results in duplicated functionalities.

• Enabling the interactions separately is also somewhat confusing, duplicates functionalities, and loses the potential to have a single and unified editing tool.

It would be great if the Transform interaction could either implement the vertex editing capability or fully integrate -both visually and programmatically- with the OL Modify interaction.

Thank you!

[Viglino]

I've added an option to synchronize the Transform interaction with a Select.
Now you can keep the selection while changing tools. You still have 2 controls to modify vertex and transform the polygons but it's more integrated.
Mixing the two controls may be bit confusing as the vertex and the transform handles may overlaps...

Screenity.video.-.Jul.24.2025.mp4

See online: https://viglino.github.io/ol-ext/examples/bar/map.control.editbar.html