Questions tagged [tiles]

A collection of image files each containing a section of a map, or remote sensing scene.

Filter by
Sorted by
Tagged with
6
votes
2answers
3k views

Display tile grid borders with leaflet (visual debugging)

I'd like to have the tile grid borders displayed on a leaflet WMS Layer in order to see which areas are requested as separate maps. On top of that it should be possible to overlay a border to the ...
6
votes
3answers
460 views

Is there a software package that allows users to create map tiles?

We would like to create map tiles to be used via mobile device in the field in an offline environment. The imagery will come from our personal collection of aerial images taken via UAV.
6
votes
2answers
3k views

Adding custom web tile layer to ArcMap?

I would like to use a basemap from the Ancient World Mapping Centre, available as maptiles via Mapbox, as basemap in my ArcMap desktop version 10.2.2. It is possible to add a web tile layer to ArcGIS ...
6
votes
1answer
2k views

Maximum number of Tiled Layers in OpenLayers

I'm developing an OpenLayers site where the client wants a dozen layers that can be individually turned on and off, which is a bit of a bummer in terms of performance. The data is PostGIS and static ...
6
votes
2answers
261 views

How does oversampling work in WMTS layers?

(This question arises as a sub-topic of the answer provided here.) In the symbology options for a raster layer in QGIS, there is a setting called "Oversampling" (see image below). How does this ...
6
votes
2answers
4k views

How do I serve OSM map tiles (mbtiles) from a Raspberry PI 2?

My main processing machine is a Ubuntu box running 14.04 with PostGIS and TileMill. I generated my tiles and the resulting mbtiles export is about 250MB (megs, not gigs). The PI runs python, has a ...
6
votes
2answers
2k views

What tile/tiling strategy should I use with GeoNode/GeoServer?

I've got a wicked GeoNode instance running, loaded with some basic vector data. I want to be able to serve our local-County aerial imagery as a basemap within GeoNode. I am thoroughly overwhelmed with ...
6
votes
2answers
1k views

Hide old tiles while loading new ones when zooming in Openlayers

Standard behavior, while zooming in and out in Openlayers, is that the current tile gets resampled and displayed stretched or compressed until the new tile is available. That's how it looks like while ...
6
votes
3answers
2k views

Serving png image tiles using geoserver

I have managed to : 1) Create layers 2) Applied SLD Styles 3) Group the layers together and able to preview What I have is this(layer preview): I would now want to serve this layer via tiles. ...
6
votes
2answers
2k views

The fastest way of generating tiles from raster?

I have some MODIS imagery 250m resolution covering a large area which I generate tiles from using Mapnik and generate_tiles.py script. I need to run this script every day with new satellite images, ...
6
votes
1answer
2k views

QGIS Project to MBTILES / SLIPPY MAPS

Assuming you have 20+ Qgis projects each with dozens of layers: Background: Web Map Tiles, Features: Millions of Polygons & Points Features are labeled, labels are never overlapping with each ...
6
votes
1answer
1k views

Holes between imagery tiles projected using gdalwarp

I am having the following issue when reprojecting imagery tiles using gdalwarp. These are 4096x4096 imagery tiles, which I'm gdalwarp'ing from WGS84 to a State Plane projection. When reprojected, ...
6
votes
1answer
865 views

Create Vector Tiles from Local GeoJSON

Background In a leaflet application I am currently using geojson-vt to turn small geoJSON files (45MB) into tiles stored as a javascript variable. This cannot be done with the larger files (900MB) ...
6
votes
1answer
5k views

Generating tiles for osm/esri shapefiles

I've generated tiles for OpenStreetMap .OSM files using Maperitive and quickly consumed them with leaflet (with no tile cache yet). I'm now looking for the right and simple way to do that also with ...
6
votes
3answers
2k views

How to generate image tiles from custom geo data for use with Leaflet

Migrating a webapp from Google Maps API V3 to OSM + Leaflet, which displays custom data that consists of lots of lines and points, on a background map. When this custom data is drawn by Leaflet on ...
6
votes
3answers
1k views

How to list all names of tile inside a given polygon?

I'd like to generate a specific set of slippy map tiles to cover certain a certain land mass. Given a polygon shapefile, is there something that will quickly generate a listing of the z/x/y tile ...
5
votes
3answers
7k views

Custom Styling OpenStreetMap without needing to host it yourself

I know it's possible to edit the way in which OpenStreetMap display, with CSS-like (like MapCSS) stylesheets. Is possible to do this without having to host your own tile server?
5
votes
1answer
1k views

Advice on benchmarking my Tile Server (Apache2+mod_wsgi)

I'm wondering what advice people have for benchmarking a tile server? Specifically, I'm running a TMS using TileLite, and Vector Tiles using TileStache. Both are running under Ubuntu Server 10.10 / ...
5
votes
2answers
3k views

Tiling GeoJSON data?

I have a GeoJSON dataset of the following format (LineString features): { "type": "FeatureCollection", "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } }, "...
5
votes
2answers
4k views

How to transform EPSG:3857 to tile pixel coordinates at zoom factor 0?

I'm creating a Leaflet map with an WebGL overlay (using L.CanvasOverlay) which renders a street network on the GPU. Let's assume I have a point (1497143.62, 6896952.18) in EPSG:3857 and want to ...
5
votes
3answers
3k views

Should I use gdal_retile.py or gdal2tiles.py?

I have many GeoTif files that I want to display in google earth with Geoserver. I am wondering if I want to use gdal_retile.py or gdal2tiles.py to create the image pyramids for them to be usable in ...
5
votes
2answers
2k views

GDAL and Python: How to “pad the extent” or otherwise handle band.ReadRaster() for area falling slightly outside the image bounds?

In a nutshell, I'm trying to create a bare-metal tiling utility using GDAL and Python. As you can see in the graphic below, which shows the perimeter of a raster and the OSM-structured tile index, ...
5
votes
1answer
1k views

How do I know when to use a map server or a tile server?

I'm new in GIS tech and I still have some questions about GIS. I wanted to know why to choose a map server (MapServer, geomap) instead of a tile server (tilestream, tilecache or tilestache) + tile ...
5
votes
3answers
326 views

What's the easiest way to move tile-based services?

We're still running ArcGIS 9.3.1 for a short while longer, and have been tiling more of our data, which is great until we have to deploy it. Deploying currently consists of transferring the entirety ...
5
votes
5answers
1k views

Openlayers HiDPI/Retina Screen with standard resolution raster tiles?

My Openlayers application can display tiled rasters from arbitrary online sources. It will parse capabilities from any user-specified URL for WMTS, TMS, OSM, XYZ or WMS services and present the user ...
5
votes
3answers
4k views

Georeference a pdf without losing image quality

My recent project is to impelent a custom and georeferenced image to a leaflet map. I finisehd my custom map using inkscape now having a .svg and a .pdf vector data. As far as i know my next step ...
5
votes
2answers
3k views

convert my large svg image into tiles

This is probably going to annoy the more experienced map people here, but I'm sort of new to all this, or at least I don't have a lot of experience. I know this is a bit strange and not ideal, but I ...
5
votes
1answer
1k views

Efficient Outputs for GeoServer Vector Data

Ok, here's our problem. We have a mapping application at http://explorer.geowessex.com which uses OpenLayers and GeoServer for delivering the data. The data is potentially endless and we have very ...
5
votes
2answers
7k views

How to convert a bing maps quadkey to mercator coordinates

How do you convert a bing maps quad key, such as "03200320023" to coordinates in mercator virtual earth (epsg 3857) coordinate system? I've got an algorithm to convert to coordinates in latitude ...
5
votes
2answers
4k views

Getting map tiles for polygon?

Based on this tutorial, I can easily find out a tile for a point. Is there an algorithm to find all tiles that are covered by a rectangle or lineString or by any other feature?
5
votes
2answers
1k views

Is it possible to create tiles with transparent background using Qtiles?

I had created the tiles from shapefile using qtiles plugin in QGIS and that shapefile layer is a label layer created using MMQGIS plugin. But the thing is I want that tiles with transparent background....
5
votes
3answers
3k views

Tile server with dynamic mapnik rendering, caching, and pre-emptive rendering

I've been making some pretty (but computationally expensive) tiles with TileMill and I'd like to serve them up. First, I served them straight from TileMill. Every tile gets rendered dynamically, ...
5
votes
2answers
3k views

How to serve local maps for an offline HTML5 webmapping app?

How could one serve maps (tiles in wherever format possible) within a Android device to be consumed by an offline webmapping app also accessed within the device's browser?
5
votes
1answer
499 views

Some characters in OpenStreetMap display as rectangles

I installed tileserver based on the instructions provided here for Ubuntu 14.04 using this approach . All fonts and Shapefiles were downloaded and installed from INSTALL.md. The tileserver works ...
5
votes
1answer
2k views

Is there any free or open offline satellite/aerial imagery for commercial use?

I'm developing a product for offline use in Brazil in rural areas where there is no Internet connection. I'm searching for a free imagery source which can be used offline in a commercial product. ...
5
votes
1answer
16k views

How to download tiles to use offline [closed]

I need to download tiles of an entire country to use offline. I don't need a server o whatever, I just need to download tiles organised in folders (x y and z). Should I use mapnick? Im on OSX but I ...
5
votes
0answers
118 views

Issues with atlas generator and labelling across maps/images

I have a lot of layers in my project and I am trying to use the atlas generator in the print composer to create a tiled map. Some of the layers have labels which have different configurations with ...
5
votes
2answers
2k views

Splitting raster into tiles using GDAL?

I have a raster that needs to be split into tiles (each tile a new raster). I have a Shapefile with multiple polygons (these polygons are how I want the raster split). How do I do this using GDAL?
4
votes
2answers
501 views

AWS Sentinel 2 incorrect cloudy pixel percentage

For some tiles with low data coverage percentage metadata and tileInfo contain cloudy pixel percentage value equal 0. Examples: http://sentinel-s2-l1c.s3-website.eu-central-1.amazonaws.com/#tiles/37/...
4
votes
2answers
526 views

Seeking documentation for {z}/{x}/{y} syntax in tilesource urls?

Speaking of tilesource urls such as http://{s}.tile.stamen.com/watercolor/{z}/{x}/{y}.png is there any technical documentation or canonical reference for the curly braces syntax? I'd specifically ...
4
votes
2answers
2k views

Serving multiple styles from tile server

I installed an OSM Mapnik tile server (according to the switch2osm documentation). Now, i'd like to serve tiles in different styles from the same server. Is this somehow possible?
4
votes
2answers
1k views

Access Stamen tiles flavors with OpenLayers

I'm using OpenLayers (v2.13.1) and would like to use Stamen Toner tiles as background. The example is simple to understand: http://maps.stamen.com/test/openlayers.html But I'd like to use the "lite" ...
4
votes
2answers
204 views

QGIS extract QTiles beyond layer extent

I'm trying to export a layer via QTiles, gotten from the Data Source Manager and connecting to (USGSHydroCached). I have QTiles set to zoom levels 0-20 and Render tiles outside of layers extent ...
4
votes
2answers
4k views

Problem in displaying tile images using OpenLayers 3

I have problem with displaying my TMS layer using OpenLayers 3 (OL3). This is my first time working with tile images this way so maybe it doesn't have to do anything with OL3, maybe I just don't ...
4
votes
2answers
488 views

How to convert UTM projected map to slippy map tilenames

I work with a map of Paris in ETRS89 / UTM zone 31N projection (EPSG:25831) and need to write slippy map tiles in filenames like /z/x/y.png. I made a custom python script to read the QGIS project ...
4
votes
1answer
4k views

Leaflet JS not displaying map properly

I am trying to render a map provided by a tile map service based on {x}, {y} and {z} using leaflet.js. So far, I managed to render the map, but it is isn't shown correctly. The tiles are repeated ...
4
votes
1answer
5k views

Manually building a tile server

I use this instruction http://switch2osm.org/serving-tiles/manually-building-a-tile-server-12-04/ I have the problem on the step "Starting your tileserver" sudo mkdir /var/run/renderd sudo chown ...
4
votes
5answers
11k views

Cache tiles for offline use of Google/Bing aerial maps

I am currently working on a project where QGIS is used for creating and editing vector data and requires a Google or Bing aerial photo layer as a basemap. I can add Google satellite/Bing aerial ...
4
votes
2answers
1k views

Stylized map workflow: Illustrator to Google Maps / OpenLayers

The aim My current aim is to create a series of (heavily) stylized diagrams and maps. I'm not very familiar with any GIS software, so my weapon of choice would be to use illustrator for creating the ...
4
votes
1answer
382 views

Vector Tiles for NetCDF Data [closed]

I understand that the GeoServer can produce vector tiles in three formats: GeoJSON, TopoJSON, and MapBox Vector (MVT). Moreover vector tiles has many advantages in handling data such as reduced size ...