Map swipe control panel

[fzadrazil]

Feature Request

Create new tool which will introduce a map swipe control so the user is able to compare two map contents while the view is synchronized. Eg. https://viglino.github.io/ol-ext/examples/control/map.control.swipe.html https://github.com/Viglino/ol-ext/blob/master/src/control/Swipe.js There can be several options how to define the map content of both the windows. That is for a discussion:

• each window displays just one layer, there are two dropdowns with the list of available layers
• left window shows the default map of the application / right window shows one selected layer (dropdown list in the panel)
• content of both windows is defined by checkbox lists of available layers

I guess the selected solution depends on what the swipe control component is capable of.

Additional context One existing application for inspiration https://app.iprpraha.cz/apl/app/prahavcera/ But we would like to have more general tool for HSLayers, not just one specific application.

[jmacura]

From the UI and program architecture perspectives I think this can be implemented as a new module with a new panel, where in the panel there would be following controls:

• layer(s) for window 1
• layer(s) for window 2 (some option like "disabled" could be added and the window 2 would then show anything that is set in the LayerManager at the moment)
• swipe direction: horizontal/vertical/(arbitrary? 💭 That would be awesome if it could be set as an azimuth angle... 🙂 )

[fzadrazil]

Thanks for the doodle, Honza! Yep, that is in accordance with the original idea. I think it will be good to start with the integration of swipe control into the map and then we can solve the exact method of selecting the map windows content.

[DailisLangovskis]

@jmacura @raitisbe So this will be a standalone app or module. I would like to start experimenting, but I want to know from which end to start.

[fzadrazil]

If possible, we would like to have it as a hslayers module, another tool in the panel. We will then use it in multiple applications.

[DailisLangovskis]

If possible, we would like to have it as a hslayers module, another tool in the panel. We will then use it in multiple applications.

Alright then, I will take on this issue.