[Maps] image layer

[nreese]

Add a layer allowing users to upload an image, png, and assign lon-lat bounds for image. Maps would display the image at the assigned location.

Use case: user has a factory floor map that they would like to display in Maps and overlay data onto. The only way to do this today is with external tile server like geoserver and additional setup, hurting adoption.

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[ThomThomson]

Would this image be overlayed on the entire world map? If so, I wonder if we could allow authors of a map to limit the bounds within which users can scroll or zoom.

Not sure if that's already possible, but I could see really cool use-cases for it if the image was geographically correctly located and sized, and the user wasn't able to pan too far outside the bounds of the image it could have some awesome use-cases!

[nreese]

Would this image be overlayed on the entire world map? If so, I wonder if we could allow authors of a map to limit the bounds within which users can scroll or zoom.

Image would be limited to provided lon-lat bounds. For example, if user uploaded theme park map in Orlando FL, the image would only be displayed in that tiny area in Orlando and not strechted to fit the entire globe. That way you could overlay GPS positions on top of your image and they would line up.

[ThomThomson]

Ah, sorry I meant if the rest of the world map would still exist outside the provided image bounds - seems like the answer is yes!

On second thought - authoring options to limit the pan and zoom probably wouldn't be necessary because we can already fit the bounds / zoom to the data, so if it the GPS positions were limited to ones inside the theme park map, we'd get that functionality for free. Plus if something left the theme park, the analysts would probably want to know.

[nreese]

Ah, sorry I meant if the rest of the world map would still exist outside the provided image bounds - seems like the answer is yes!

That is correct, showing the basemap layer is not coupled to this feature request. The basemap layer is just a regular layer (that is added by default for convenience), but it can be always be removed.

[nickpeihl]

If I understand correctly, the core requirement would allow the user to warp the image by dragging the four corners of the image (control points) to their respective positions on the world map. This might work well enough for small areas or images that don't need high precision.

Users with large area images or higher precision requirements might benefit from the ability to set as many control points as necessary to warp the image to fit the world map coordinate system. For example, https://github.com/timwaters/mapwarper/ is a project that allows users to add lots of control points in a web interface. That may or may not be overkill for this feature.

[desean1625]

Something nice to have would be the ability to utilize a geo_shape from the document that has the bounds of an orthorectified image and another column as the source. But that is a very niche use case.

[nreese]

In order to provide better transparency of priorities, issues that will not be prioritized within the next 24 months are being closed.

Tracking request in Maps ice box #154870