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Raster tiles are square bitmap graphics displayed in a grid arrangement to show a map. An alternative approach is vector tiling. The general concept of tiling and the difference between raster and vector tiles is described at Tiles.

Tiles are not always in these dimensions; for example there could be 6464 pixel images, however 256256 pixel images are a de facto standard. 512512 pixel seems to be the usual size of high-resolution tiles.

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A "tileset" typically includes enough tiles to form a very large image, if they were shown all at once, and also several zoom levels. Generally the idea is not to show them all at once, but to display a particular area of the map on a website. Normally this is done using a JavaScript map library to provide panning and zooming functionality, and request downloading of new tiles as necessary to show the user new areas of the map (a Slippy Map).

I am new to GIS world. I am trying to host raster images (TIFF) which I need to convert in tiles and host on GeoServer and prepare the service URL so that any user using that service zoom to any location, the service will get the tiles of that location and display it.

I am able to convert the raster image to tiles which create multiple folders and put the tiles into it using gdal2tiles. Now I am not getting the option to upload that folder in the GeoServer to achieve my task.

I am trying to work with designers and developers on mapping applications and I have noticed that the scales for each zoom level are different when using the AGOL/google/bing tiling scheme depending on if you are generating raster tiles or vector tiles.

This is causing havoc and mis-alignments between the geospatial team and the web developers where we get a spec saying roads are visible from zoom level 5 but depending on if the app is using vector vs raster tiles it is different. It is also effecting the combining of these layer types.

The vector tile layer scales are zoomed in one extra level compared to when the same map is created with raster tiles. The table below gives a small example of what I am seeing. The attachment shows what I am seeing in the Pro.

Hi Bang and Mark,

The difference is because Esri vector tiles are designed to adhere to the wider Vector tile ecosystem.

Vector tile scales originated from Mapbox zoom levels which are one value less than our ArcGIS API zoom levels. See -apis-and-services/reference/zoom-levels-and-scal...

I've been messing a bit with XYZ tiles i generated using a much smaller raster dataset. That was done using gdal2tiles. They're stored in an S3 bucket and ive been able to load them into QGIS using the S3 bucket public url + /{z}/{x}/{-y}.png. it seems to crash Q quite a bit though. this has also not worked in the Esri world. Maybe that has something to do with the url having {-y} rather than {y}? Would like to figure it out before moving to the sat imagery

Create with your 850 raster tiles a VRT ("Raster" -> "Other" -> "Build Virtual Raster"). Remove the tick from the checkbox "Place each input file into a seperate band". You can leave the other options as they are. Drag & Drop the VRT within QGIS into the Geopackage you prepared - Done

However, the GDAL GeoPackage driver will by default expose a GeoPackage dataset as four bands RGBA. This means that even though your gpkg file contains single band tiles, it will appear to have four bands when opening it in (for instance) gdalinfo or QGIS. To be absolutely sure, you can

"Raster vs vector". Are raster maps outdated and old fashioned? Are vector tiles the new trend in the mapping world? In this article, we will try to cover the advantages and disadvantages of both tile types.

A layer containing the map by itself, streets, rivers, parks, and other objects is a map tiles layer. It underlies every map and is the base layer for a digital map. Map tiles specify how the map will look like, its style and its type. They're calculated and rendered based on the GIS database and distributed from a map provider server. The server gives away to client tiles on demand. So client applications are able to visualize them as a map.

Until recently, all map tiles were in raster form. However, the market for digital maps and component expands and evolves. Nowadays more and more map provides together with raster maps offer vector map tiles.

Raster map tiles are images by nature of size optimized for the web. Below you can see examples of raster tiles. Map frameworks and SDKs place raster map tiles in the correct order to generate a map as a result.

So what to use? It depends on the needs of your application. We would recommend you to go to vector tiles direction if the size of map tiles and styling flexibility is important for your application. And stay with raster version of maps if maps should work on any types of devices, including slow one.

A tiled web map, slippy map[1] (in OpenStreetMap terminology) or tile map is a map displayed in a web browser by seamlessly joining dozens of individually requested image or vector data files. It is the most popular way to display and navigate maps, replacing other methods such as Web Map Service (WMS) which typically display a single large image, with arrow buttons to navigate to nearby areas. Google Maps was one of the first major mapping sites to use this technique. The first tiled web maps used raster tiles, before the emergence of vector tiles.

There are several advantages to tiled maps. Each time the user pans, most of the tiles are still relevant, and can be kept displayed, while new tiles are fetched. This greatly improves the user experience, compared to fetching a single map image for the whole viewport. It also allows individual tiles to be pre-computed, a task easy to parallelize. Also, displaying rendered images served from a web server is less computationally demanding than rendering images in the browser, a benefit over technologies such as Web Feature Service (WFS). While many map tiles are in raster format (a bitmap file such as PNG or JPG), the number of suppliers of vector tiles is growing. Vector tiles are rendered by the client browser, which can thus add a custom style to the map. Vector map tiles may also be rotated separately from any text overlay so that the text remains readable.

Properties of tiled web maps that require convention or standards include the size of tiles, the numbering of zoom levels, the projection to use, the way individual tiles are numbered or otherwise identified, and the method for requesting them.

To display a tiled map in a browser usually requires the support of a web mapping framework. This framework handles the retrieval of tiles, display, caching, and user navigation. Popular frameworks for tiled maps include Google Maps API, OpenLayers and Leaflet.

Hi , I have a solar potential raster of the buildings in an particular area of 0.5 m resolution which have the solar potential values pixel wise on the buildings and rest of the area with no data. I want to overlay that raster over the buildings such that the building roof tops will show the solar potential of the buildings and the remaining part will be transparent. Is it possible to do that?.

Thanks a lot. It worked for me. But i am facing one problem. I have stored the solar potential details building wise with the 3d building tiles. i want to get the details when i click those building tiles using pickedFeature.getproperty(). Before overlaying i am able to get those details. After overlaying the raster over the tiles, i am not able to get those details as it is taking click feature as overlayed raster feature not the tile feature. How to exclude the overlayed raster from the click event. or any other ideas.

Thanks a lot, the issue with scene.pick is resolved. I have the colorized raster with high resolution in .tif format. When i am trying to drape using classification, I am getting the output as like while color raster draped over buildings as attached, but after converting to jpeg or png i am able to see the colorized raster on the buildings. But the problem is visual quality is very poor as it is getting compressed during conversion from .tif to jpeg.

Raster map tiles are actually nothing else than raster images. Zoomable raster maps consist of many raster map tiles (in the .png or .jpg format) placed next to each other, ordered in a pyramid scheme. This clever trick allows you to browse just a small part of the map without loading it whole while maintaining a feeling of exploring a single large document. Read more about zoomable maps and the pyramid scheme in this article.

If we do not want to add an extra plugin to our application and we want to define the map options we must use the Raster tiles XYZ (recommended option). On the contrary we want to make a map without worrying about defining the map options we can use the TileJSON (plugin).

The environment variables that control how the map tiles are served are defined in MapService; the mapsettings.json file needs to be exposed to the tileserver container as it then loads the vector data and generates raster images from it, from what I remember you might want a varnish (or similar) cache in front of the tile server to help with performance.

I have investigated and done all of that. The tile server is working and shows images on the local port. The proxy through openremote is working. But, the frontend needs to download its raster data from the openremote_instance/map/js API path instead of the path for vector data /map/tile (see: Map API swagger specification )

I do not find how to configure the frontend on how to use the raster API path. It should be done via the

mapsettings.json. I you could find an example of such mapsetting.json, should be appreciated. 006ab0faaa