On 2/13/21 8:01 PM, pathmapper wrote: > Hi, > > here's a related thread (i.e. xyz tiles, but I guess it's also valid vor wms): > https://github.com/qgis/QGIS/issues/34813 > > Some quotes: > "QGIS renders the surrounding areas in a background job to make subsequent > pan actions faster. Therefore it sends more tile requests than necessary for > the current map extent." > > "Btw, we now have the code in place to fine-tune prefetching behavior for all > raster layers on a per-layer basis, for now I just blacklisted osm tiles." > > It sounds like the plan is to make the prefetching behavior configurable via > QGIS settings.
See https://github.com/qgis/QGIS/pull/41832 to prevent prefetching for true WMS's... Now I like to have some input indeed making prefetching behaviour more configurable: - where to put a checkbox/setting about prefetching tiles (global raster, or per wms service or just global, or a hidden setting)? - what to make default (with or without prefetching...?) My first idea: - add a checkbox "Prefetch surrounding WMS(T) images" in the WMS/WMTS Connection dialog in the 'WMS/WMTS Options' section; default FALSE (unless see below) - In General Options / Network / Cache Settings add a tab or just a checkbox with "Default prefetch WMS(T) images" (defaulting to FALSE, but if enabled the above mentioned checkbox will always be enabled too) - also make this an option in the provider uri Input? Regards, Richard Duivenvoorde _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
