The Mapbox Vector Tile (MVT) format is widely considered the leading open standard for large-scale map visualization, as evidenced by its widespread adoption by major technology companies such as AWS, Meta, and Microsoft for their products and services. However, MVT was developed nearly a decade ago and, consequently, does not fully align with the capabilities of new geospatial data sources that are characterized by rapidly increasing data volumes due to advancements in geospatial sensors and automated detection through artificial intelligence. In this paper, we introduce the MapLibre Tile (MLT) format, a novel vector tile specification designed from the ground up to address the limitations of MVT. Our experiments, simulating user sessions on widely used basemap datasets, demonstrate that MLT achieves up to three times better compression ratios compared to MVT on encoded tilesets, with over six times better on certain large tiles. Additionally, MLT offers decoding speeds that are up to three times faster and significantly enhances processing performance. MLT also introduces new functionalities and is specifically designed to lay the foundation for the next generation of map renderers, which we expect to entirely offload processing to the GPU, thereby overcoming the stagnation of Moore`s law.

I'm trying to add a vector tile layer in my app using OpenLayers 4, but I'm getting the error as follows: ol.js:753 Uncaught TypeError: a.replace is not a function Here is my code to add the vector tile layer, var vectorSource = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.GeoJSON(), url: function (extent) { return 'http://localhost:8080/geoserver/myworkspace/wms?service=WMS&version=1.1.0&request=GetMap&layers=myworkspace:bdms_building&styles=&bbox=227227.0625,2664047.75,300691.15625,2745836.25&width=689&height=768&srs=EPSG:32640&format=application/x-protobuf;type=mapbox-vector&' + 'bbox=' + extent.join(',') + ',EPSG:32640'; } }), }); proj4.defs("EPSG:32640", "+proj=utm +zone=40 +datum=WGS84 +units=m +no_defs"); var map = new ol.Map({ target: 'map', controls: ol.control.defaults({ attributionOptions: { collapsible: false } }).extend([ new ol.control.ZoomToExtent({ extent: [ 227227.0625, 2664047.75, 300691.15625, 2745836.25 ] }) ]), interactions: [ interactionSelectPointerMove, new ol.interaction.MouseWheelZoom(), new ol.interaction.DragPan() ], layers: [ vectorSource ], view: new ol.View({ center: [227227.0625, 2664047.75], projection: 'EPSG:32640', maxZoom: 19, zoom: 13 }) });

A node.js based Vector Tile to Braille and ASCII renderer for xterm-compatible terminals. If you're on Windows, use the open source telnet client PuTTY to connect. Use your mouse to drag and zoom in and out! Discover Point-of-Interests around any given location Highly customizable layer styling with Mapbox Styles support Connect to any public or private vector tile server Or just use the supplied and optimized OSM2VectorTiles based one Work offline and discover local VectorTile/MBTiles Compatible with most Linux and OSX terminals Highly optimized algorithms for a smooth experience…

I'm trying to add a vector tile layer in my app using OpenLayers 4, but I'm getting the error as follows: ol.js:753 Uncaught TypeError: a.replace is not a function Here is my code to add the vector tile layer, var vectorSource = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.GeoJSON(), url: function (extent) { return 'http://localhost:8080/geoserver/myworkspace/wms?service=WMS&version=1.1.0&request=GetMap&layers=myworkspace:bdms_building&styles=&bbox=227227.0625,2664047.75,300691.15625,2745836.25&width=689&height=768&srs=EPSG:32640&format=application/x-protobuf;type=mapbox-vector&' + 'bbox=' + extent.join(',') + ',EPSG:32640'; } }), }); proj4.defs("EPSG:32640", "+proj=utm +zone=40 +datum=WGS84 +units=m +no_defs"); var map = new ol.Map({ target: 'map', controls: ol.control.defaults({ attributionOptions: { collapsible: false } }).extend([ new ol.control.ZoomToExtent({ extent: [ 227227.0625, 2664047.75, 300691.15625, 2745836.25 ] }) ]), interactions: [ interactionSelectPointerMove, new ol.interaction.MouseWheelZoom(), new ol.interaction.DragPan() ], layers: [ vectorSource ], view: new ol.View({ center: [227227.0625, 2664047.75], projection: 'EPSG:32640', maxZoom: 19, zoom: 13 }) });

Sulla base dell'esempio ufficiale Openlayers pubblicato a questo indirizzo https://openlayers.org/en/latest/examples/geojson-vt.html ho costruito la mia mappa che rappresenta i laghi del sud america. Ecco il codice: import geojsonvt from 'geojson-vt'; import Map from 'ol/Map.js'; import View from 'ol/View.js'; import GeoJSON from 'ol/format/GeoJSON.js'; import VectorTileLayer from 'ol/layer/VectorTile.js'; import Projection from 'ol/proj/Projection.js'; import VectorTileSource from 'ol/source/VectorTile.js'; // Converts geojson-vt data to GeoJSON const replacer = function (key, value) { if (!value || !value.geometry) { return value; } let type; const rawType = value.type; let geometry = value.geometry; if (rawType === 1) { type = 'MultiPoint'; if (geometry.length == 1) { type = 'Point'; geometry = geometry[0]; } } else if (rawType === 2) { type = 'MultiLineString'; if (geometry.length == 1) { type = 'LineString'; geometry = geometry[0]; } } else if (rawType === 3) { type = 'Polygon'; if (geometry.length > 1) { type = 'MultiPolygon'; geometry = [geometry]; } } return { 'type': 'Feature', 'geometry': { 'type': type, 'coordinates': geometry, }, 'properties': value.tags, }; }; const layer = new VectorTileLayer({ background: '#1a2b39', style: { 'fill-color': ['string', ['get', 'COLOR'], '#eee'], }, }); const map = new Map({ layers: [layer], target: 'map', view: new View({ center: [0, 0], zoom: 2, }), }); const url = 'https://openlayers.org/data/vector/ecoregions.json'; fetch(url) .then(function (response) { return response.json(); }) .then(function (json) { const tileIndex = geojsonvt(json, { extent: 4096, debug: 1, }); const format = new GeoJSON({ // Data returned from geojson-vt is in tile pixel units dataProjection: new Projection({ code: 'TILE_PIXELS', units: 'tile-pixels', extent: [0, 0, 4096, 4096], }), }); const vectorSource = new VectorTileSource({ tileUrlFunction: function (tileCoord) { // Use the tile coordinate as a pseudo URL for caching purposes return JSON.stringify(tileCoord); }, tileLoadFunction: function (tile, url) { const tileCoord = JSON.parse(url); const data = tileIndex.getTile( tileCoord[0], tileCoord[1], tileCoord[2], ); const geojson = JSON.stringify( { type: 'FeatureCollection', features: data ? data.features : [], }, replacer, ); const features = format.readFeatures(geojson, { extent: vectorSource.getTileGrid().getTileCoordExtent(tileCoord), featureProjection: map.getView().getProjection(), }); tile.setFeatures(features); }, }); layer.setSource(vectorSource); }); In this way, the representation graphics are very grainy, but the zooms are fast: If I modify the VectorTileLayer by adding renderMode: 'vector', the graphics improve significantly, but the zoom becomes slow: How can I stay in renderMode: 'hybrid' while increasing the graphical quality rendered on the map?

I'm trying to add a vector tile layer in my app using OpenLayers 4, but I'm getting the error as follows: ol.js:753 Uncaught TypeError: a.replace is not a function Here is my code to add the vector tile layer, var vectorSource = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.GeoJSON(), url: function (extent) { return 'http://localhost:8080/geoserver/myworkspace/wms?service=WMS&version=1.1.0&request=GetMap&layers=myworkspace:bdms_building&styles=&bbox=227227.0625,2664047.75,300691.15625,2745836.25&width=689&height=768&srs=EPSG:32640&format=application/x-protobuf;type=mapbox-vector&' + 'bbox=' + extent.join(',') + ',EPSG:32640'; } }), }); proj4.defs("EPSG:32640", "+proj=utm +zone=40 +datum=WGS84 +units=m +no_defs"); var map = new ol.Map({ target: 'map', controls: ol.control.defaults({ attributionOptions: { collapsible: false } }).extend([ new ol.control.ZoomToExtent({ extent: [ 227227.0625, 2664047.75, 300691.15625, 2745836.25 ] }) ]), interactions: [ interactionSelectPointerMove, new ol.interaction.MouseWheelZoom(), new ol.interaction.DragPan() ], layers: [ vectorSource ], view: new ol.View({ center: [227227.0625, 2664047.75], projection: 'EPSG:32640', maxZoom: 19, zoom: 13 }) });

Hello, Since we upgraded from ArcGIS Enterprise 11.3 to ArcGIS Enterprise 11.5, we can no longer publish a vectorTile service. After uploading  our .vtpk, we cannot display it in the MapViewer because the URL: https://myagssite.cern.ch/arcgis/rest/services/Hosted/myservice_20250907/VectorTileServer ...

I'm trying to add a vector tile layer in my app using OpenLayers 4, but I'm getting the error as follows: ol.js:753 Uncaught TypeError: a.replace is not a function Here is my code to add the vector tile layer, var vectorSource = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.GeoJSON(), url: function (extent) { return 'http://localhost:8080/geoserver/myworkspace/wms?service=WMS&version=1.1.0&request=GetMap&layers=myworkspace:bdms_building&styles=&bbox=227227.0625,2664047.75,300691.15625,2745836.25&width=689&height=768&srs=EPSG:32640&format=application/x-protobuf;type=mapbox-vector&' + 'bbox=' + extent.join(',') + ',EPSG:32640'; } }), }); proj4.defs("EPSG:32640", "+proj=utm +zone=40 +datum=WGS84 +units=m +no_defs"); var map = new ol.Map({ target: 'map', controls: ol.control.defaults({ attributionOptions: { collapsible: false } }).extend([ new ol.control.ZoomToExtent({ extent: [ 227227.0625, 2664047.75, 300691.15625, 2745836.25 ] }) ]), interactions: [ interactionSelectPointerMove, new ol.interaction.MouseWheelZoom(), new ol.interaction.DragPan() ], layers: [ vectorSource ], view: new ol.View({ center: [227227.0625, 2664047.75], projection: 'EPSG:32640', maxZoom: 19, zoom: 13 }) });

I'm trying to get vector layer from arcgisfeatureserver in a standalone app, didn't work, so I checked what providers I got on PyCharm: ['gdal', 'memory', 'mesh_memory', 'ogr', 'vectortile'] While in QGIS I got : ['DB2', 'OAPIF', 'WFS', 'arcgisfeatureserver', 'arcgismapserver', 'delimitedtext', 'gdal', 'geonode', 'gpx', 'grass', 'grassraster', 'mdal', 'memory', 'mesh_memory', 'mssql', 'ogr', 'oracle', 'ows', 'postgres', 'postgresraster', 'spatialite', 'vectortile', 'virtual', 'wcs', 'wms'] This is how I wrote as I saw on the developer cookbook: QgsApplication.setPrefixPath("/Applications/QGIS-LTR.app", True) qgs = QgsApplication([], True) qgs.initQgis() How can I add provider to my standalone app, so I can get layers from arcgisfeatureserver?

I'm trying to add a vector tile layer in my app using OpenLayers 4, but I'm getting the error as follows: ol.js:753 Uncaught TypeError: a.replace is not a function Here is my code to add the vector tile layer, var vectorSource = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.GeoJSON(), url: function (extent) { return 'http://localhost:8080/geoserver/myworkspace/wms?service=WMS&version=1.1.0&request=GetMap&layers=myworkspace:bdms_building&styles=&bbox=227227.0625,2664047.75,300691.15625,2745836.25&width=689&height=768&srs=EPSG:32640&format=application/x-protobuf;type=mapbox-vector&' + 'bbox=' + extent.join(',') + ',EPSG:32640'; } }), }); proj4.defs("EPSG:32640", "+proj=utm +zone=40 +datum=WGS84 +units=m +no_defs"); var map = new ol.Map({ target: 'map', controls: ol.control.defaults({ attributionOptions: { collapsible: false } }).extend([ new ol.control.ZoomToExtent({ extent: [ 227227.0625, 2664047.75, 300691.15625, 2745836.25 ] }) ]), interactions: [ interactionSelectPointerMove, new ol.interaction.MouseWheelZoom(), new ol.interaction.DragPan() ], layers: [ vectorSource ], view: new ol.View({ center: [227227.0625, 2664047.75], projection: 'EPSG:32640', maxZoom: 19, zoom: 13 }) });

I'm trying to get vector layer from arcgisfeatureserver in a standalone app, didn't work, so I checked what providers I got on PyCharm: ['gdal', 'memory', 'mesh_memory', 'ogr', 'vectortile'] While in QGIS I got : ['DB2', 'OAPIF', 'WFS',…