Using QGIS Server TILED mode

https://docs.qgis.org/latest/en/docs/server_manual/services/wms.html#tiled

When working with tiles, symbols at or near the boundary between two tiles may appeared
cut, because they are only present in one of the tile.

Setting `TILED` parameter to `TRUE` in GetMap requests, tell QGIS Server to work in tiled
mode, and to apply the Tile buffer configured in the QGIS project. When TILED is TRUE and
when a non-zero Tile buffer is configured in the QGIS project, features outside the tile
extent are drawn to avoid cut symbols at tile boundaries.

assets/src/modules/BaseLayersMap.js

@@ -186,7 +186,8 @@ export default class BaseLayersMap extends olMap {
                             params: {
                                 LAYERS: baseLayerState.itemState.wmsName,
                                 FORMAT: baseLayerState.layerConfig.imageFormat,
-                                DPI: 96
+                                DPI: 96,
+                                TILED: 'true'
                             },
                         })
                     });
@@ -333,7 +334,8 @@ export default class BaseLayersMap extends olMap {
                                     LAYERS: node.wmsName,
                                     FORMAT: node.layerConfig.imageFormat,
                                     STYLES: node.wmsSelectedStyleName,
-                                    DPI: 96
+                                    DPI: 96,
+                                    TILED: 'true'
                                 },
                             })
                         });

lizmap/modules/lizmap/lib/Request/WMTSRequest.php

@@ -198,6 +198,7 @@ protected function process_gettile()
         $wmsParams['width'] = $tileWidth;
         $wmsParams['height'] = $tileHeight;
         $wmsParams['dpi'] = '96';
+        $wmsParams['tiled'] = 'true';
         if (preg_match('#png#', $Format)) {
             $wmsParams['transparent'] = 'true';
         }