Support for multi-tile Datasets

[hamishcampbell]

Kart will soon support Pointcloud datasets, followed by Raster/Imagery datasets. This is data that is often tiled, within a filesystem folder or cloud hosted location.

QGIS does not (AFAIK) provide a way to add a filesystem folder or network location of tiled data. Virtual datasets can be created for raster data, but there is not (again AFAIK) a way to create Pointcloud virtual datasets.

This means there is no clear mechanism for tracking a tiled pointcloud (and future: raster) dataset within QGIS, for committing changes, diffing the dataset, etc.

Ideas for possible approaches:

• Create a special layer Group which contains the tiled data. Ideally this group would automatically track the tiles within the working copy folder.
• Leverage virtual datasets the reference paths or specific files, with hooks to add/remove/modify the contents.

Other ideas and options for tracking multi-tile dataset changes with QGIS are also welcome.