Questions tagged [tiles]

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

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Best way to create tiles

Within a GeoServer framework, does anybody know how I might best create/cache tiles based on layers stored in PostGIS? I am aware of Mapnik and have created a simple TMS using python (+ Django) but ...
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1answer
4k views

XYZ Layer in OpenLayers has missing tiles

In OpenLayers I'm having a missing tile problem where it generates a missing link icon and a pink background. I found several threads including this one saying to add this code OpenLayers.Util....
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2answers
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OpenStreetMap: need a tile service with English labels in non-English countries

I want to use OpenStreetMap tile server in its QtLocation plugin. Alas, if I use the host provided by default, there are non-English labels in non-English countries (Arabic, for example). I don't ...
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1answer
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Geoserver tiles missing point labels that show up fine when serving as a single tile

Using Geoserver 2.8.2, I just loaded a new "address points" layer (shp files). I have a style I've used before, and perhaps this has happened in the past and I've not noticed, but with the custom ...
3
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1answer
4k views

Finding the Map-Tiles(z,x,y,tile_data) in a given Bounding box and zoom level

I have this information:For Ogun State Nigeria from http://www.maphill.com/nigeria/ogun/ South 6° 18' 6" N North 7° 59' 23" N West 2° 40' 6" E East 4° 34' 47" E I have map tiles @ different zoom ...
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1answer
386 views

Cached vector tiles with dynamic attributes

I am looking to implement a web map of property boundaries and owner information. The parcel data (property boundaries) is updated infrequently, but the assessment data is updated weekly, as ...
3
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1answer
1k views

Best solution for tiling a geotiff?

I have some GeoTIFF files that I want to bring into the web. The spatial reference of these GeoTIFF files are multiple but are never WebMercator (EPSG:3857) and I need the web map to be in the same ...
3
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1answer
279 views

CartoDB basemaps -how to clear out?

In CartoDB, when I switch to Map View on any of my tables, I have the opportunity to change the basemap, including using "Yours". In my attempts to connect to our MassGIS XYZ basemaps, I've filled up ...
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2answers
3k views

Vector Tile Rendering on iOS

I'm developing an iOS app for displaying my own custom map data (on GeoServer). The SDK I'm using to display my map is route-me (Alpstein fork) as the map viewer for now. route-me supports raster ...
3
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1answer
3k views

Single tiled Mapserver WMS to avoid Labels and features cut along tile borders and repeated labels

I am using Mapserver-wms-openlayers for publishing maps. But there are some issues came across related to duplicate labeling for same feature in adjacent tiles, unwanted breaks in line features along ...
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1answer
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How to handle a geotiff map together with points with OpenLayers (or other libraries)?

I create a lot of printed maps using various applications (ArcGIS, QGIS, Microstation, Illustrator etc). Sometimes I'd like to turn this map somewhat interactive on the web. What I'm looking for is a ...
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1answer
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Mapserver: labels and tiles

I'm developing map with Mapserver to be rendered in tiles and testing output with Ka-map. Most of the time labels split on two tiles are matching, but sometimes they're not. I configured Ka-Map like $...
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2answers
502 views

How to use geowebcache seeded tiles with a custom projection (EPSG: 27700) in openlayers

I have been using Geowebcache inside Geoserver to seed tiles to improve wms performance when using Openlayers to great effect. This has been working well with EPSG:4326 layers, I use the EPSG:4326 ...
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2answers
85 views

Editing Individual Tiles From ArcGIS Online Tiled Map Service

Is there a way to edit or replace tiles individually? For example, if I have published a tiled layer and need to update small details of that layer I currently have to overwrite the entire tiled ...
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1answer
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Using Waze map tiles with Leaflet

I came across this Map Comparisons where they have used Waze map tiles. I searched around and couldn't find any official documentation for using Waze tiles in leaflet. I couldn't even find their ...
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1answer
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Export background tile map to raster file

In QGIS I managed to display the ship traffic density from marinetraffic.com as a background tile map using the TileLayer plugin. Here is my TileLayer.tsv file: #title credit serviceUrl yOriginTop ...
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1answer
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Transforming between epsg:3857 and Google Maps Tile coordinates

Hio, I used to use a simple python project (https://github.com/hrldcpr/mercator.py) to convert between wgs84 and google maps tile coordinates. This project doesn't have a license, and looks like it ...
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1answer
3k views

Force openlayers to not use browser cache for tiles refresh

I use OpenLayers.Layer.XYZ to display tiles from TileStache server without using the cache option of the server. However, I notice that the tiles stay in cache (probably the browser cache) until the ...
3
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1answer
122 views

Covert /z/x/y.jpg map tiles to something that can be provided using the WMS specification

We have generated some maps in our own software solution where the output is a map stored in XYZ tiling format. /zoom/x/y.jpg I got a request if I could provide it in a WMS. I am wondering if ...
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1answer
1k views

gdal2tiles generates small picture inside 256x256 tile

I've used gdal2tiles for generating tiles in number of different polar projections and always experienced the same problem — strange small picture inside normal 256x256 png with the rest of space ...
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1answer
3k views

Generating JPEG tiles using gdal2tiles.py?

I am using gdal2tiles.py to generate tiles and packing it into MBTiles using mb-util. gdal2tiles by default generates PNG tiles. When I convert PNG tiles to JPEG large black area around tiles are left ...
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2answers
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Why does OpenLayers load OSM-like tiles, but does not show them?

I created a tile server with OSM-data in the German style. The data is quite similar to the official tile server for openstreetmap.de, provided by Fraunhofer IOSB. http://tile.iosb.fraunhofer.de/...
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3answers
9k views

local tiles server for offline access

Anyone knows if there is a "lightway" solution to mount a local tile server? Feature I'd to provide is local storage of small sections of maps, not more than small city for example, in order to ...
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3answers
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Image tiling math

I've been looking at MapTiler for the logic on how to render an image as tiles on a (Google) map. Instead of storing the single tiles locally in a folder structure I want to use Djatoka. I'm able to ...
3
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1answer
244 views

OSM Perspective View for Android/iOS

I am recently working on a project where i want to show a skiarea in a perspective view, like you know it from maps of skiresorts where the ski lifts are displayed. Are there any libraries where i can ...
3
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1answer
319 views

gdal2tiles pixel shift in output tiles

I would like to re-calculate large geotiff files (10,000 x 10,000px) with the help of gdal2tiles into little (256 x 256px) tiles. The process works fine. However, the result is not perfect. There is ...
3
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2answers
2k views

Create Blue Marble XYZ tiles

I am trying to create my own XYZ tiles to use them with OpenLayers 3 as my local tiles. On this example you can see the objective/idea. I want to use the NASA Blue Marble Earth Visible maps, as an ...
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1answer
977 views

QTiles generating blank tiles on QGIS

I need to generate tiles from shape files (which contain contour lines) I've loaded into QGIS. I'm trying to use the QTiles plugin to generate these tiles, but when I run it, it only generates blank ...
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1answer
1k views

Problems with simple Leaflet + Mapbox TitleLayer?

I'm completely new to GIS, and thought I would start off with the leaflet quick tutorial. However, I'm having problems with adding the base tile layer with Mapbox. This is my code so far: <!...
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1answer
750 views

Adding a Mapbox Studio basemap to leaflet

I am using Mapbox Studio, customized a nice basemap, and downloaded it. It downloaded as a .json file with a couple thousand lines of code. I want to be able to use this basemap (called basemap.json) ...
3
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2answers
483 views

Get tile layer intensity at given zoom and longitude/latitude (Leaflet)

I can display a tile layer as an overlay in Leaflet via an url of the form path/to/my/tile/layer/{z}/{x}/{y}.png : my_overlay = L.tileLayer('http://path/to/my/tile/layer/{z}/{x}/{y}.png', { maxZoom: ...
3
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1answer
573 views

Node JS and Tilestrata to serve SRTM Tiles

I emailed one of the authors and it turns out that tilestrata-disk wasn't meant to be used as a "provider" in their system. No wonder! Here's what Brian Reavis said about how the cache works: A ...
3
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1answer
546 views

Is there a way to reduce tile processing from Openlayers 3 when user pan & zoom a lot?

I have 2 overlays with local tiles (xyz) on my map. When the user zoom in / out and pan the map intentionally a lot, the app becomes very slow because OL tries to render all the tiles it was requested ...
3
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1answer
512 views

QGIS 2.8.1 print composer won't export all OpenCycleMap base layer tiles [duplicate]

My set-up is Linux Mint 17.1, 32- bit system, QGIS 2.8.1-Wien. I have a map with few layers including OpenCycleMap as a basemap. In Print Composer the extent of the map is 32.5km x 22km square and ...
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3answers
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How to get started webmapping with xyz-tiles and Geoserver?

I´m starting to explore the possibilities of web based map presentation. Therefor I have a basic question in understanding. After reading a bunch of tutorials, could a workflow work like this? Style ...
3
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1answer
895 views

How to split a geotiff into a standard tiling scheme with Geotools in Java

I would like to tile random geotiffs to a standard grid, with a standard size of 256X256 using Geotools in java. My use case is as follows: I receive a "stream" of raster data in the form of multiband ...
3
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1answer
2k views

How to use GeoWebCache tiles with default geoserver url?

I am having GWC tiles access issue when integrated in another application using GWC url. //systemname:8080/geoserver/gwc/service/wms. The error is given below. I have created new grid set (Epsg:...
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2answers
2k views

Why aren't Mapbox vector tiles rendered in the browser?

Would it be technically possible to have Mapbox's compact vector tile format sent to the client (instead of PNG tiles), then rendered inside the browser with JS code? Second question: when using TM2/...
3
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1answer
810 views

Use Gdal2tiles to generate 512px tiles

I'm a newbie in gdal2tiles & python but I would like to modify gdal2tiles to create 512px tiles for retina display (screen). Can someone suggest how I can do this?
3
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1answer
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Tiling/Caching ArcGIS Server

A few weeks ago we crashed our server by trying to tile a large image service (600gbs) (multiple times without clearing the cache) which caused us to exceed the servers free disk space. We fixed the ...
3
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1answer
866 views

Raster Tile Merge Performance of PostGIS 2.0

I'm attempting to intersect Australian Census boundary polygons with the 1" SRTM DEM (10.5bn points across Australia), and output the result as a single raster image on the fly. The DEM is stored in ...
3
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2answers
652 views

How to antialiase tiles when seeding a layer from an GeoTiff in GeoServer

I have an GeoServer running that uses GeoWebCache. As a data source I use a 1.5 GB big map for a layer. The outcome of the tiling and scaling are very rough looking tiles. Is there a way to ...
3
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2answers
1k views

Generate a pyramid of tiles by 1/2 scaling a higher zoom level

Given a set of tiles covering a large area at a particular zoom level (These are online on someone's tile server and will need scraping, but let's assume these are on disk if it's easier. With TMS ...
3
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1answer
178 views

Optimum raster tile size

I am wondering if there is an optimum raster tile size when using -t in raster2pgsql. I am setting -t auto and it creates thousands of tiles and takes hours to load. I am working with very large ...
3
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1answer
512 views

How do I show GWC cached tiles offline in Openlayers 3.5?

I want to compare performance of my OL app using tiles from GWC and compared to loading them locally from the HD. Usually I load local tiles that were generated using GDAL with the following code : ...
3
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1answer
396 views

Mapproxy tiles are partly black instead of transparent

I use MapProxy for caching WMS/WMTS tiles and it works fine up to a certain zoom level. But for higher zoom levels MapProxy fills the empty parts of the layers in black. This happens for certain ...
3
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2answers
655 views

Mapproxy as transparent Openstreetmap cache

I followed the guide from https://wiki.openstreetmap.org/wiki/MapProxy to create a locale tile proxy for OpenStreetMap, because I need to access the same tiles over and over again. However, there seem ...
3
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1answer
2k views

How to add layer opacity slider in Openlayers 4 and qgis2web

I am using qgis2web to publish a webmap, and then modifying the code to add features that I want. I am now adding a Tiled image from imagescale folders (e.g. \15 \16 \17 \18 and so forth). Using the ...
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1answer
1k views

is it possible to combine multiple URLs for one ol.layer.tile in openLayers 3?

I have two Image services that I would like to combine into one layer; one has higher resolution imagery that draws only at a larger scale, and other has lower resolution imagery that draws at all ...
3
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1answer
417 views

Setting up Tile Map Service on Apache

I am trying to set up a tile map service on Apache. I tried following this: Setting Up a TMS Tile Map Service on a Web Server but when I go to load the page it's not loading the images in my /var/www/...