Questions tagged [tiles]

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

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1 answer
179 views

How to convert an FAA Sectional GeoTIFF maps into slippy map tiles

The FAA publishes aeronautical maps for the US in a GeoTIFF format: https://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/vfr/. I would like to convert the GeoTIFF into a tile set (in ...
1 vote
1 answer
132 views

What does "tiles" usually mean in a GIS context?

I've seen the word thrown around a lot and from the way I've heard it used, there is an approach to dividing the world up into squares with various zoom levels as an effort to speed up web rendering. ...
0 votes
2 answers
62 views

Expand the imagery range to more than one tile in Google Earth Engine

I am creating a map layer in Google Earth Engine using Sentinel-2 data and no matter what I set my bounds too I can only get it to display one tile. I know that I have mapped things before that aren't ...
0 votes
0 answers
17 views

GeoServer mosaic - Innertiling slow

I have mosaic rasters/vectors from db - as a layergroup. Individually layers do work quite well, and as a group decently at mid zoom/low high, but when zoomed to close, rendeering gets really slow. ...
1 vote
1 answer
124 views

Generate raster tiles from QGIS project, avoid creating redundant tiles (not overlapping a vector layer), containing only OSM basemap pixels

Context: raster tiles webmap on private server Using QGIS, I created raster tiles from a project with Generate XYZ Tiles (Directory). I basically have a vector layer with buildings and an OSM basemap ...
2 votes
1 answer
3k views

Clipping/cropping/masking a raster tile layer in Mapbox GL JS

I'm loading Landsat tiles into a Mapbox GL JS map via an AWS S3 tile server, and this is working OK, but what I'd really like to do is clip the tile layer to a GeoJSON polygon which is loaded in ...
0 votes
0 answers
19 views

Hexadecimal coordinates for Tile Service in ArcGIS Pro

I have an XYZ tile service URL that provides PNG tiles for requests in the following structure: L{z}/R{y}/C{x}.png. However, it appears that the service requires different types of coordinates, which ...
1 vote
2 answers
65 views

Leaflet - Customer Tile Cache Scheme Review, Munich

I am interested in user-specific tiling schemes and serverless display with Leaflet. I have come across problems that I cannot solve on my own. There are older requests in the forum for the display of ...
-1 votes
0 answers
22 views

Multiple tile imagery in Google Earth Engine [duplicate]

I am creating a map layer in Google Earth Engine using Sentinel-2 data and no matter what I set my bounds too I can only get it to display one tile. I know that I have mapped things before that aren't ...
3 votes
2 answers
3k views

Basic Authentication in Leaflet

I'm using Leaflet to display map tiles. The map tiles are loaded from a different site using basic authentication. So the url template looks like this: L.tileLayer('https://username:password@example....
1 vote
1 answer
167 views

Free software to publish tiles on Amazon S3?

Does anyone know of free software that would allow me to publish tiles on Amazon S3? I know of Arc2Earth, but it is not free.
0 votes
0 answers
22 views

Why is the azimuthal projection not drawn correctly?

I am using Azimuthal equidistant projection, formulas from wiki const double R=1000.0; double calcDist(double phi0, double lamda0, double lamda, double phi) { double cos=qSin(phi0)*qSin(phi)+qCos(...
1 vote
2 answers
186 views

Google Earth Engine Filter Out Incomplete Sentinel images by Geometry

I need to filter out all images of a ee.imageCollection that is not complete (does not cover the entire geometry). I tried using .filterMetadata('MGRS_TILE') and I didn't make it. Any idea? Here is ...
0 votes
1 answer
78 views

Create a Map Tile Server in Windows

I need a Tile Server to use in another application (Traccar) that will work on a Windows machine without a network. However, I saw that to make this work I would need a Tiled Map and a Tile Server. As ...
3 votes
1 answer
2k views

Serving OSM tiles - mod_tile/renderd/postgresql problem: I sometimes get 404 Not Found

When I request tiles I get sometimes 404 Not Found. Usually, if I request the same tile again it appears alright (with 200 OK). This is what I found in renderd logs: renderd[734]: An error occurred ...
-1 votes
0 answers
14 views

Creating arbitrary raster tiles and coordinate system for paintings

Looking for the best way to take a complex painting say the sistine chapel ceiling a high resolution Create Tiles (raster) so folks can Zoom in Create Overlays and Call outs Create some vector ...
0 votes
1 answer
38 views

Why is maximum level-of-detail capped at level 18 (1:4,252) when publishing web tile layer in ArcGIS Pro?

I created a hillshade raster that I would like to use in the field with Field Maps on my phone. When I go to share this raster from ArcGIS Pro as a web tile layer, I'm having problems with the raster ...
0 votes
1 answer
173 views

Create tiles for leaflet.js

All I am trying to do is create map tiles from an image to be used on a webiste. The only program I have found to do this is MapTiler, however it adds a watermark. Does anyone know how I can create ...
0 votes
2 answers
250 views

GeoWebCache (GWC) "crashes" while seeding Tiles from large orthoimage (TIF; >10GB, 1cm GSD) in Azure BlobStorage

Since three weeks we try to handle our large orthoimages (output agisoft/drones) in Geoserver. The orthoimages are approximately 10-15GB and have a ground sampling distance of 1cm. We have to host the ...
3 votes
1 answer
250 views

QGIS clipping virtual raster into tiles using grid layer (polygons)

Using QGIS I want to clip a 100gb VRT raster (UAS) into tiles using a predefined polygon grid (polygon gpkg). I want each tile file to be named by the value contained in the "grid_square" ...
4 votes
1 answer
3k views

Is it possible to extract tiles layer as raster in QGIS?

Let's say I have a shapefile that contains multiple polygons and I open it on QGIS: Let's also say that I activate the OpenStreetMap tiles layer under it: I'd like to find a way to extract the tiles ...
2 votes
0 answers
44 views

PostGIS - tiling vector layer

I have a height isoline vector layer covering a large area, but most of the time, I am only working on a small part of it, so all kind of handling of the data goes slowly. Are there any ways to make a ...
0 votes
1 answer
561 views

Rotating raster before tiling

I have a set of referenced rasters (.tif), which need to be tiled but each of them need to be rotated by a certain degree before that using python (gdal mainly as other routines use it as well). In ...
2 votes
2 answers
423 views

How to use gdal to generate overview tiles from existing zoom level 21 tiles?

I have multiple PNGs in a quadkey format for zoom level 21, for example: 023012311121232233120.PNG 023012311121232233121.PNG 023012311121232233122.PNG 023012311121232233123.PNG etc.. I used ...
1 vote
1 answer
52 views

Using QGIS to create XYZ .png tiles on EC2

I have set up a PostgreSQL/PostGIS DB on an EC2 that contains my .osm data. I populated it with osm2pgsql. Now, I can create tiles on my local machine using the QGIS "Generate XYZ Tiles (...
0 votes
0 answers
41 views

Strange tile missing in GeoServer (GeoWebCache)

I am using GeoServer to publish an image mosaic layer that contains 100-ish single-band geotiffs. When I use the Seed/Truncate function of GeoWebCache to cache the layer in the format of jpeg-png, it ...
6 votes
1 answer
3k views

Fast Dynamic MVT generation

I am trying to migrate from serving static MVT to generated on the backend by PostGIS with ST_AsMVT(). Or find a way of minimizing the time of building MVT from the database. I have a dataset of ...
6 votes
1 answer
2k views

Using Baidu tiles in QGIS

I study Chinese cities a lot and would like to use Baidu map tiles in QGIS. Can anyone advise me on how to go about this? I haven’t been able to find any advice on achieving this on the web.
0 votes
0 answers
62 views

Using Baidu Map tiles in QGIS?

I am currently studying the Chinese city of Shenhzen and would like to use Baidu map tiles in QGIS. I tried using this XYZ url: http://online1.map.bdimg.com/onlinelabel/?qt=tile&x=%7Bx%7D&y=%...
1 vote
1 answer
235 views

Translating own OSM server tile to English (ubuntu 18.04)

I have created a OSM tile server using the https://switch2osm.github.io/ tutorial for ubuntu 18.04 with great success but no matter what I cannot display the map labels in English only, I have tried ...
0 votes
1 answer
572 views

Export an Landsat image from ImageCollection from GEE to drive

I'm trying to export an Landsat image from GEE to a Drive, but the Export function that I applied gets 14 images (13 contain NoData and 1 the image). This is my code: function applyScaleFactors(image) ...
1 vote
0 answers
17 views

GWC: folder names meaning: why i have folders with the name 'EPSG_3857x2_09' and 'EPSG_3857_09'

EPSG_3857 is a CRS the postfix 09 is a zoom-level but why i have folders with structure of: << CRS >>x2_<< zoom-level >> << CRS >>_<< zoom-level >> Is ...
1 vote
1 answer
671 views

OpenLayers WMTS reprojection

I have a WMTS service URL, which gives me three layers in projection - WGS84_Pseudo-Mercator (tileMatrixSet). It's very easy to add them using this guide -> https://openlayers.org/en/latest/...
0 votes
2 answers
595 views

Unable to set zoom level when convert tif to mbtiles using gdal_translate in QGIS

Continue from this link, for my situation, the only way to generate .tif to .mbtiles is gdal_translate in QGIS. This is the .json after using gdal_translate Setting: GDAL > Raster conversion > ...
2 votes
0 answers
123 views

QGIS creates gaps while generating tiles with Write vector tiles (XYZ)

In QGIS 3.22.4 I am generating vector tiles from multiline layer using Write Vector Tiles (XYZ) function. The problem is, that the algorithm generates gaps at intersection of features: I am ...
2 votes
2 answers
63 views

Converting Mercator tile coordinate to an OL TileGrid coordinate in OpenLayers?

Is there a method to convert the normal {z}/{x}/{y} endpoints you would get from a tile service into an OpenLayers TileGrid tile? Here is a mercator tile with coords: However in OpenLayers the ...
2 votes
1 answer
143 views

what's the point of tile layers with kml files?

By default gdal2tiles will create a bunch of *.tif's and *.kml files. I know that KML stands for Keyhole Markup Language and, in my experience, they're an alternative format to shapefiles, but I don't ...
0 votes
0 answers
48 views

Quickest way to merge or tile many thousands of rasters with empty space between them

I have many thousands of images (actually millions, but one step at a time) that are jpgs with associated world files. They were taken with a downward facing camera as a vehicle traversed terrain on a ...
0 votes
1 answer
129 views

Prevent sending too many requests while zooming/paning (OpenLayers 6.15)

I have a web page that displays WMS data from a WMS server, using a TileLayer. The images are fetched with a callback function called by the setTileLoadFunction(..) method of the associated TileWMS ...
1 vote
3 answers
266 views

Is there a way to view USGS 3DEP WMS(?) maps in Osmand, which uses TMS(?) format?

I'm very unclear on all of these acronyms. All I know is that USGS 3DEP LiDAR maps are very useful for seeing cliffs for climbing, and Osmand is very useful for offline navigation, but I can't figure ...
-7 votes
3 answers
2k views

Delivering map tiles in real-time without caching? [closed]

Is it possible to deliver map tiles quickly over the web without worrying about caching or seeding them? With raster map engines this is a problem because endering raster tiles is resource consuming. ...
0 votes
1 answer
301 views

Geoserver global services and GeoWebCache

I have disabled the "global setting" in my Geoserver to require the workspace name in all URL endpoint. Unfortunately, GeoWebCache does not work anymore. It can return the tiles allready generated ...
4 votes
3 answers
2k views

Google Maps with Tiled Image

I'm trying to get a weather image to display on Google Maps, however in my comparisons to others it seems as if my image is slightly to small (Vertically). I'm wondering what I might have done wrong ...
0 votes
0 answers
155 views

Converting XYZ tile request to govmap.gov.il requset which use EPSG:2039

How to convert tile (x,y) as is the case with Google Maps, which is based on a regular Mercator. To columns and rows for the govmap website that the coordinates are Israel Transverse Mercator (ITM) ...
0 votes
0 answers
280 views

Generating XYZ tiles slow on QGIS

I'm new to the world of mapping and using QGIS. I need to render and create map tiles for the entire world using QGIS. However, the process of creating MBTILES is quite slow due to the large number of ...
0 votes
1 answer
148 views

Local OSM Tiles - ways to reduce number of tiles

I'm developing a PC application that uses local OSM tiles. I'm using OSM docker from switch2osm to generate XYZ .png tiles for a given area and supply directory with tiles to our clients with our app. ...
1 vote
1 answer
66 views

Import tiles OpenStreetMap QGIS [closed]

I have a map in QGIS that is supposed to have multiple layers, a custom made map, and a google street/openstreetmap layer. The layers somehow don't work, and so I decided to make a new connection. I ...
3 votes
1 answer
122 views

QGIS XYZ tile showing up distorted

See image, particularly with the text. Why would this be happening?
0 votes
0 answers
76 views

Using GeoServer WMS min/max scale in OpenLayers

I have some WMS published from a GeoServer and thanks to the SLD, I defined the min/max scales to bounds my WMS display. The point is that in OpenLayers, I can't figure out how to use those scales ...
1 vote
1 answer
43 views

Custom PostGIS function not visible in pg_tileserv layer list

I have created a new PostgreSQL function whose code is below CREATE OR REPLACE FUNCTION public."my_test"( layerid integer, z integer, x integer, y integer) RETURNS bytea ...

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