qgis / QGIS

QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
https://qgis.org
GNU General Public License v2.0
10.59k stars 3k forks source link

Cache WMS tiles for Temporal Controller navigation and looping across timesteps #50721

Open alexandreleroux opened 2 years ago

alexandreleroux commented 2 years ago

Feature description

QGIS's Temporal Controller is great for browsing the timesteps of time-enabled WMS layers.

However, at the moment, using the controls to go from one timestep to the other systematically involve a new WMS GetMap request, even is the user is going back to a timestep he just displayed.

A solution could be to locally cache WMS tiles accessed by the Temporal Controller. This would greatly improve user experience with much smoother navigation between the various timesteps, especially when the user has enabled the Loop function. Thanks!

Additional context

No response

lbell commented 4 months ago

Adding a vote for ability to cache WMS for any number of reasons... Working with large WMS data it's annoying that we have to re-download a tile we just moved away from a second ago.