Questions tagged [tiles]

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

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6
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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 ...
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0answers
47 views

Mapnik - Preserve RGB value of transparent pixels

Currently generating PNG raster tiles (mapnik) with custom style where I store one information (map_feature) by channel (rgba). Mapnik seems to multiply alpha with value of red, green or blue. I ...
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1answer
363 views

How to find map tiles' parent tiles?

I am wondering how to find the parent map tiles of a particular tile or the tiles contained within a particular map tile. I know tiles usually have the structure of somedir/{z}/{x}/{y}.png/jpg and I ...
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0answers
603 views

Generating tiles from matplotlib plots

I have a number of analyses that are being plotted as heat maps in UTM coordinates using matplotlib. I'd like to generate tiles from these to display on a leaflet map over top of an OSM map. At this ...
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0answers
384 views

How to use L.singleTile plugin in Leaflet

I am using Leaflet (leaflet-0.7.3) to publish a WMS layergroup from GeoServer. My code is: var basemap2 = L.tileLayer.wms('http://localhost:8080/geoserver/ows?version=1.3.0&', { ...
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0answers
377 views

Display tiled image by leaflet

I have some big images without geographic information which I want to load them by leafletjs. I have two ideas: 1 Georeferring images first Once the image contains geographic informaiton, I can ...
4
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2answers
573 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/...
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0answers
1k views

Cartopy image tiles - determining possible zoom level in advance?

In Cartopy I'm using an image tile like so: terrain_tile = cimgt.StamenTerrain() ax.add_image(tile, zoom) By default I've set the zoom level to 14 and that works perfectly for my first test case. ...
2
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1answer
459 views

getGetFeatureInfoUrl Hit-detection tolerance

I'm using getGetFeatureInfoUrl to retrieve features from a WMS layer like that: var url = wmsSource.getGetFeatureInfoUrl( evt.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/xml'} )...
3
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1answer
3k 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 ...
6
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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. ...
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0answers
149 views

Mapbox-gl offline openmaptile font not shown

I'be downloaded a mbtile file related to rtl countries and used it as an offline source for Mapbox-gl server. All stuff are shown correctly except labels that have rtl characters. Even ltr characters ...
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0answers
425 views

Google Maps API setTilt(45) on custom tile layer

With google maps api, I'm trying to put a custom XYZ service on top of google satellite 3d view (45°). Is it possible? I have a mapnik stack server serving a custom tile XYZ service (transparent ...
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1answer
511 views

Generating 512*512 tiles?

I want to generate tiles in custom size but can't find a tiler that can do it. In gdal2tiles I cant find the size option. TileMapper costs too much. Is there any opensource utils that can generate ...
1
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1answer
349 views

GeoServer caching request not aligned to grid(s)

For starters, just to point out I have really gone through all posts here on this issue and none of the solutions are working for me. I have a lot of GeoServer layers which I am serving in EPSG:3765 ...
1
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1answer
122 views

Disable tiling when Mapserver requests layers from external WMS server

We use Mapserver to create a composite of multiple layers from another WMS server. We noticed that a single request to Mapserver creates multiple requests to the "upstream" WMS server. Apparently ...
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0answers
150 views

AGOL “Elevation Layer (Hosted)” is not displaying outside of a narrow scale range

28/08/17 Edit: Solved. None of the errors or tools will specify this, but you need to manually generate pyramid layers on the input raster to have it display correctly as an elevation surface. ...
3
votes
1answer
256 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 ...
4
votes
1answer
5k 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 ...
3
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0answers
293 views

How to fill missing high zoom level tiles from MapServer WMS?

I'm creating image tile pyramids (format = MRF) which do not contain all possible tiles at high zoom levels. This is because in some areas the high zoom level tile does not exhibit higher resolution ...
2
votes
1answer
99 views

ST_Tile col/row indices?

I want to generate tiles from a postgis raster, to be used as a tileLayer in an Openlayers map. The tiling is fairly easy to do using ST_Tile, resulting in a new table, with each record being one ...
1
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0answers
186 views

Cropping openstreemap tiles to desired bounding box

Given the solution for downloading a cluster of tiles in https://stackoverflow.com/questions/28476117/easy-openstreetmap-tile-displaying-for-python and http://wiki.openstreetmap.org/wiki/...
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0answers
579 views

Integrate Google Streetview map into QGIS?

I'd like to show a the Google Maps layer that has the routes that streetview has taken in my QGIS 2.18.x project. I'm not looking for the actual street view imagery. I've seen multiple posts about ...
1
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1answer
310 views

Cannot get view and extent of GeoServer WMS on Openlayers 4

I'm trying to get a satellite image from GeoServer. I've specified the extent and projection that was given in the URL (not shown in the code). But when it renders, the image is nearly invisible and ...
1
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0answers
41 views

Recognize Tiled Internet Layers

Is there a way to recognize a Tiled Internet Layer using arcobjects in .NET? I've tryed several ways but I always end up in a dead road... ILayerFile lyrf = new LayerFile(); lyrf.Open(@"G:\mypath.lyr"...
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0answers
119 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 ...
0
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1answer
220 views

Finding source map tile

Given a degraded image of a Google maps tile, for example: Is there a service or technique I can use to find the map coordinates of this tile?
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0answers
55 views

Understanding tiles folder and file names [duplicate]

I have hard times finding the meaning of tiles names and folders. I don't think it's related to QGIS (it seems to be a standard thing) but when I export my map into a tile set the content is split ...
0
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0answers
46 views

Cannot find all tile services hosted in my AGOL via REST

I have already posted this problem to geonet, but I thought it might be good to post it here, as people on GIS SE might have already seen such a problem (although I could not find any similar question)...
1
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1answer
827 views

Transport layer on OpenLayers 3 map: ol.layer.OSM is not a constructor

I'm using the Thunderforest Transport map and I want to overlay it onto my OpenLayers 3 map. After looking through the documentation and following their example (http://www.thunderforest.com/tutorials/...
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0answers
308 views

Using a custom XYZ tile server in Manifold

I've a custom tile server that returns a tile based on the X/Y/Z values provided in the URL. The thing is just brilliant when used as a gMaps layer. I can simply add a new Tile Server to QGIS and ...
1
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1answer
237 views

OpenLayers.Layer.XYZ not referencing tiles correctly

I have tiles stored here: ../CO_054/MtViewBaseMap/MtViewBaseTiles in the order : C:\Program Files (x86)\GeoServer 2.10.3\webapps\CO_054\MtViewBaseMap\MtViewBaseTiles\0\0\0.png I'm using this to ...
2
votes
3answers
2k views

How to transform a GeoTiff DEM to png tiles encoding elevation as RGB colors

I want to convert a GeoTiff DEM file, to PNG tiles where the elevation is encoded as RGB colors with a formula like that : -10000 + ((color.r * 256 * 256 + color.g * 256 + color.b) * 0.1) I know how ...
3
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0answers
37 views

SPOT and LANDSAT images on the same grid

Let us introduce ourselves, we are a GIS team of the Cartographic division of INDEC (the national census bureau of Argentina). We are working on the next national Agricultural Census 2018, which will ...
1
vote
1answer
158 views

OpenLayers - referenced basemap not rendering

I am doing a walkthrough using OpenLayers through a UPENN course where the students are instructed to point to a school sponsored url that hosts a repository for their work. Their respective ...
1
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0answers
407 views

OpenLayers, Geoserver: TileWMS are displaying wrong

I'm trying to display some WMS with tiles, but at every zoom (in or out) the images are displaying wrong, with wrong proportions. This is how I'm creating the tile: var map = this.state.map; ...
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0answers
1k views

Create VRT from TIFFs with different projections

Basically, I have a bunch of different TIFF files, each with their own projection (I think). I want to eventually mosaic and tile them all. But before I tile them I have to combine all the TIFFs in a ...
2
votes
1answer
49 views

Disappearing borders after tile update

I have a problem with OSM rendering stack (mapnik, renderd, mod_tile) + osm_carto style and planet.osm loaded in Postgres. After the expiration period, tiles were updated and now, some of the ...
2
votes
0answers
295 views

Increase rendering speed for the data coming from MSSQL for showing in Leaflet

I have some polygon data which are coming from MSSQL server. Getting these data takes about 5 seconds and I have about 1600 Polygons. I would like to show a popup for each polygon (by clicking on them,...
3
votes
2answers
4k views

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 ...
0
votes
1answer
955 views

How to add dataURL image as source in OpenLayers?

I am building a web application with OpenLayersthat should have offline map support. I save pictures from a WMS server to the browser cache and load them from the cache as a dataURL. The next step is ...
1
vote
1answer
421 views

Generating seamless contours across tiles from TIN/LiDAR data?

I have both TINs and LiDAR data for an entire county, divided into a grid of multiple tiles. I want to generate contours from this data at 2 foot intervals, using ArcGIS 10.5. I decided to do this ...
2
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2answers
613 views

How to read geopackage tiles using Geotools

I want to read tiles from a geopackage file using Geotools (v. 17.0). I found the class GeoPackageReaderTest.java on GitHub and modified the example to read tiles from my file: // try to read ...
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0answers
637 views

how to properly assemble tile requested from WMTS server?

I am using python and owslib to request a WMTS server for tiles in a given region using EPSG:4326 CRS. I assemble the tiles with PIL by simply pasting them next to each other. The image I got seems ...
1
vote
1answer
2k views

Serve GeoServer Tiles in XYZ format

I am using GeoServer and seed tiles on my server. The tiles are created successfully but I don't know which pattern the directory structure is following... (i.e. .../EPSG_4326_05/0_0/00_06.png). I ...
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0answers
61 views

Implementing a DTM editing web service

I am planning out the creation of a web service for DTM editing. I can think of two ways of handling the DTM data on the backend, but are there better methods? Have a base dataset of DTM tiles. ...
0
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0answers
81 views

Should I use slippy tile folders to display a map when having a large set of information?

I have about 1 million polygons divided into 3 ShapeFiles, each of them having 2GB, a total of 6GB. If I generate 256x256 tiles from zoom level 8 to 17, I will have 25 millions of tiles (image files) ...
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0answers
67 views

gdal_translate tiles won't save anything [closed]

Other Tiles question I copied the code and tried to run it, it runs the for loop the cmd says "100.. done" but there aren't any files in the set directory. Could be there any problem with the ...
1
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1answer
298 views

How to download whole ECW or JPG tiles from web viewer?

I've found an online server which has some aerial tiles I'd like to save at maximal resolution for offline use, I'd even be happy with just the whole JPG picture to be later georeferenced again by ...

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