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

1
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1answer
22 views

GeoServer - Conversion formula between scale and resolution

I am trying to figure out what is the conversion formula between scale and resolution used by GeoServer, specifically when creating a new gridset for Tile Caching. One would expect that the conversion ...
5
votes
2answers
50 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 ...
2
votes
2answers
47 views

AGOL tiling creates multiple labels

I create a webmap and use publish it on ArcGIS Online. Unfortunately the tiling engine of AGOL creates multiple labels for the same item. How can I prevent this? Same label problems occured, when I ...
2
votes
0answers
31 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
1answer
40 views

ModelBuilder overwrites output when using split tool?

I have one SHP file containing polygons that describe splitlines in rows and cols. I'd like to use this to split an existing dataset of a few hundred SHPs containing tree positioning data. The extends ...
2
votes
0answers
50 views

Georeferencing xyz layer from Griffiths Valuation of 1850s?

I have made progress on my project to map land and property owned by individuals in 1850 in Ireland using Griffiths Valuation maps. I used http://griffiths.askaboutireland.ie/gv4/single_layer/tiles/{...
0
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0answers
28 views

API or lib to convert boundary boxes or single long lat to quadtile?

I would like to store geo coordinates as OpenStreetMap quadtiles. Is there more doc somewhere than in the link above? Are there standard solutions to convert long / lat points and boundary boxes into ...
0
votes
0answers
23 views

QGIS basemap labels shrinking when exporting to image [duplicate]

EDIT: I was not able to find a suitable solution in the suggested topic. Probably related to these questions: Why do quickmapservices basemap labels shrink when printed? Different scale of basemap ...
0
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0answers
35 views

Tiled Map doesn't work properly [closed]

I'm working on a project using ArcGIS JS 3.14 and it doesn't show the tiled map in the main container, it shows only in overview container. I'm looking forward to any suggestions for this behaviour. ...
3
votes
1answer
59 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 : ...
1
vote
1answer
41 views

Clipping LiDAR tiles with vector data using LAStools?

So the problem is that I have a huge amount of LiDAR tiles (in .laz format), but need only part of them that are within the borders of the city. When I load all the tiles to LASTools, I have ...
0
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0answers
56 views

Creating OS tiles from OpenStreetMap extract

We are wanting to create UK tiles from OSM extracts (Greater London then UK) for an old system that uses OS tiles. So far I have used Maperitive to create some OSM tiles. The commands I used are: ...
0
votes
1answer
30 views

WMTS Error when adding Mapbox Layer to QGIS: Failed to download capabilities?

I've tried this a few different ways and can't quite get it to work using QGIS's add WMTS layer tool. The URL loads fine in a browser but won't download as a tile in QGIS. I don't have that good an ...
1
vote
0answers
21 views

gdal: WMTS is working with 256x256 tiles, but not with @2x (512x512) tiles

I'm working on using imagery from a web map tile service which I've cached locally as a gdal dataset. I have both 256x256 tiles and 512x512 tiles; the latter are the "retina" versions of the former; i....
1
vote
1answer
72 views

Downloading Map Tiles from Griffiths Valuation of Northern Ireland?

I would like to download map tiles of Northern Ireland associated with Griffiths Valuation of Ireland in 1867. These maps have details of property leased by individuals, including farm fields and ...
2
votes
1answer
37 views

Viewing ArcGIS Generated Tiles in QGIS?

I have created Cache imagery using the Manage Tile Cache tool of ArcGIS Desktop. This tool creates cache imagery from the data provided. After creating this cache, i can open that in ArcMap easily ...
1
vote
0answers
41 views

obfuscate real coordinates

Due to copyrights I cannot deliver some POIs as plain vector data using GeoJSON in Leaflet or OpenLayers. I'm therefor looking for some kind of sane obfuscation, to make it harder for normal users to ...
0
votes
1answer
29 views

Extracting pixels from polygonal geospatial region of set of map tiles and/or set of GeoTIFF files?

I need to create a script, probably JS or Python, to perform the following: I have a polygonal region -- no "holes", and always fully convex -- for which I need to extract the pixel data from one of ...
0
votes
1answer
52 views

Higher than maxNativeZoom requests tiles

Leafet is requesting tiles while at a higher zoom level than maxNativeZoom from defined mapserver instead of just stretching the maxzoom sized tiles. It is creating a lot of 404s since my maxzoom is ...
0
votes
0answers
16 views

Getting static .pngs from mbtiles file or other sources

My nomenclature may be astray because mapping and GIS is not my domain. We need to be able to serve tiles locally in a structure lik the folder example provided here: https://www.maptiler.com/how-to/...
1
vote
3answers
83 views

Directly generate XYZ tiles from GeoJSON?

I would like to directly generate XYZ (=raster) tiles from a ~20 GB large GeoJSON file. This is way too much for QGIS Tiler. As another trick I've generated vector MBTiles from the GeoJSON, but sadly ...
1
vote
1answer
66 views

Serving multiple styles openstreetmap-carto(4.x versions) and osm-bright from tile server?

I have followed this link to implement serving multiple tile styles from tile server. It says that I just need to update .xml style file path in renderd.conf file. But the openstreetmap carto recent 4....
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0answers
124 views

Cost of hosting an OSM tile server with similar performance to Google Maps API

I am considering switching from Google Maps API to hosting my own OSM tile server. Right now my site gets about 2,000 map hits a day, serving about 20-30 users at a time. With Google Maps API, I ...
0
votes
1answer
16 views

Geoserver global services and geowebcahe

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 ...
0
votes
0answers
23 views

Labeling for tile index of rasters using QGIS?

I have made a grid for group of rasters with tile index, I want to label it with its location on my hard drive. When Im done labeling, it looks like this(for an example): D:/QGIS/TEST/45675.ecw. ...
1
vote
1answer
55 views

Is it mandatory to specify --style argument and --tag-transform-script in osm2pgsql query for importing .pbf file?

I am trying to build a tile server that serves tiles of multiple styles(osm and osm-bright). I have followed this link for implementing this. But here I found that osm2pgsql query for importing .pdf ...
0
votes
1answer
89 views

Trying to get WMTS layer in Leaflet, but get error 400 (out of range)

I'm trying to use https://github.com/mylen/leaflet.TileLayer.WMTS to get a wmts layer into my leaflet map, but the error 400 is generated and when I look at the tile it says out of range. While ...
4
votes
2answers
114 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 ...
1
vote
0answers
122 views

Setup mapnik: tile generation very slow

I've setup a Mapnik tileserver with this steps: https://switch2osm.org/manually-building-a-tile-server-18-04-lts/ This are the specs of my server: OS: Ubuntu 18.04 LTS 8 vcpu's 28 GB RAM I've ...
2
votes
1answer
98 views

Naming conventions for LiDAR files?

I can't figure out what is specifically being referenced by the names of these .las files: They correspond to a specific quadrangle, but can't figure out quite how.
6
votes
1answer
920 views

Do Tile Servers typically store every tile for every zoom level?

As I understand, a basic tile server provides raster image tiles for different zoom levels. To cover the world, it requires 1 tile at zoom level 0, 4 at zoom level 1, 4n for zoom level n. These are ...
0
votes
0answers
30 views

OpenLayers - Mobile display problem

I'm programming a map with OpenLayers (4.6.5) and my problem is the following => I tested this code : var map = new ol.Map({ target: 'map', layers: [ new ol.layer.Tile({ source: ...
0
votes
0answers
22 views

QGIS tiling large set of imagery

Looking for advice on workflow how to split (retile) large set of rasters (500 images). Aerial imagery (georeferenced) originally were in WGS84, tiles are overlapping. I managed to reproject the ...
0
votes
0answers
35 views

Tiff file output using print composer has blocks of image scrambled (out of place)

I have used 2.18 to print maps to file (tiff) using print commposer. The base layer imported into QGIS consists of NOAA raster tiles. (My problem arises whether or not I have added other layers.) ...
0
votes
1answer
74 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 ...
2
votes
2answers
56 views

Natural earth tiles are not detailed enough

I am new to GIS, but I have been using the following set of tiles in some of my D3 applications: .tiles.mapbox.com/v3/mapbox.natural-earth-2/ The issue with these tiles is that they are not too '...
1
vote
0answers
43 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/examples/...
0
votes
0answers
27 views

Calculate from tile URL path a TileCache URL path

I am searching for a way how to calculate in PHP (there for OpenLayers are not suitable for me) from tile path /zoom/x/y.png a Tilecache URL like 14/000/009/107/000/010/749.png
2
votes
0answers
43 views

Generating map tile for ol.source.xyz?

I'm trying to create an OpenLayers online map, using QGis/PostgreSQL(PostGIS) to collect data sets and style the map, and then deploying it online. I previously deployed using PostGIS, GeoServer and ...
6
votes
2answers
216 views

Is there a python equivalent of gdaltindex?

I am using the following gdal shell command (gdaltindex) to create a raster tile index from a directory of raster (tif) files. find /path/to/raster/directory -name "*.tif" -exec gdaltindex tile-...
1
vote
1answer
39 views

Import OpenStreetMap tiles in a Geoserver Tiled Layer [closed]

I've got OpenStreetMap Tiles downloaded from OSM and stored in a repository, with the structure: Zoom/X/Y.png (own of OSM). I need to import all of them in one of Geoserver directories in order to use ...
1
vote
1answer
82 views

Troubleshooting downloading MODIS NDVI Data in R

I am trying to download MODIS Data from 2000-2018, however I am encountering some difficulties. Here is my script MODISoptions(localArcPath = "/Volumes/myserver/MODIS/data", ...
3
votes
1answer
143 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 ...
0
votes
0answers
13 views

Tiling image to be used with Google Maps?

I have a 2880 x 2880 image that I would like to tile so that it replace the entire usual world map. So far I got this working gdal2tiles.py -p raster -z 0-6 5KNewMap.png abc3/ but for the zoom ...
0
votes
0answers
20 views

Google Map cannot zoom less than 3 with custom tiles created with gdal

I have tiled a 2880 x 2880 image with gdal2tiles like this gdal2tiles.py -p raster -z 0-6 MyMap.png result It correctly create 6 folder with the tiles in them. My issue that I'm now trying to load ...
0
votes
0answers
63 views

Get tile images directly from sqlite database

I'm trying to get map tile images to display in my application. I created a sqlite database and used WMS Lite server to request map tiles using GetMap syntax. wmslite?SERVICE=WMS&VERSION&...
1
vote
1answer
65 views

How to improve the quality of raster tiles at high zoom levels in Geoserver

I have been testing the functionality of GeoServer as a WMS raster server and I have noticed that the quality of the tiles at high zoom levels is low. Here is an example of the GeoServer tile vs the ...
2
votes
2answers
55 views

Correcting merged LiDAR DEM with outliers in inner edges?

I've created a DEM from LiDAR data. After combining all the files, I could see that there are some problems through the tile borders. This is an screen focused in one of the cross section of 4 files ...
2
votes
1answer
715 views

QGIS 3.0 Hybrid Tile Server URLs

I've recently come into a new position where I'm using QGIS instead of ESRI and am learning the ropes on handling all the things ESRI comes out of the box with that QGIS doesn't. I've found tile ...
1
vote
1answer
57 views

Visualize MbTiles database

Imagine having a MbTiles database like the one you can download here Is there a way to quickly visualize the tiles on a map? Such as an online tool, QGIS PlugIn, ... If I get a completly unknown ...