An image file containing a section of map.
14
votes
5answers
3k views
How to cut a 'tiled image' from a raster dataset using GDAL?
I am working on an app that needs to create tiles (jpeg) from a given raster dataset. My initial inclination was to use gdal2tiles.py, but its performance seems like it could be improved.
That leads ...
14
votes
7answers
3k views
Are there open access terrain tiles with a permissive license like OSM?
Are there open access terrain pyramidal map tiles with a permissive usage license like OpenStreetMap's? I'm building aviation-related maps with Polymaps and need a good raster basemap. The Google ...
14
votes
3answers
891 views
What is the wire format for Google's new vector map tiles?
Google recently released new vector cartography for their mobile maps. I'm curious if anyone here has any insight into the wire format they use for transmission? I've experimented with a few formats ...
12
votes
3answers
5k views
How to georeference a web mercator tile correctly using gdal?
As an example I will take the following tile http://a.tile.openstreetmap.org/3/4/2.png and save it as "4_2.png".
The WGS84 coordinates of this tile can be calculated or read there by clicking the ...
11
votes
3answers
447 views
Are there tools to directly import QGIS projects into Tilemill?
Now that there is a tool to convert an MXD to Tilemill, one must then wonder if the ability to open QGIS documents in Tilemill will ever exist.
11
votes
2answers
871 views
Tiling Vector data without losing geometrical and topological information
I am trying to figure out a way to sub-divide a vector based map into smaller blocks. I can tile the map based on different strategies such as q-tree. However, it is unavoidable to cut some polylines ...
8
votes
4answers
2k views
Rendering custom OpenStreetMaps style (land=white, water=black): do I need a dedicated computer just to do this?
EDIT: My goal is NOT to use OpenStreetMap or cloudmade as a web map. I described exactly what I want ("a full, rasterized set of tiles for the entire world at zoom=10 (around 68 Gigapixels, ...
4
votes
1answer
1k 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?
11
votes
8answers
3k views
What methods are there to produce map tiles for google maps?
newbie to stack exchange here.
I'm currently using the automatic tile cutter found here to make the standard 256x256 tiles required to make a custom map type for my map. The map tile cutter script ...
5
votes
1answer
884 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 ...
2
votes
1answer
998 views
XYZ Layer in Open Layers has Missing Tiles
In Open Layers 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
...
10
votes
1answer
588 views
Understanding the Map Tile creation properties
I am trying to create a tile base map.
I have an image that I want to create the tile from and I am using GDAL.
I managed to create the tiles but when I view the result it seems that the tiled map ...
3
votes
1answer
315 views
QGIS custom CRS for map of manufacturing shop floor
I'm working on a web app that shows a map of a manufacturing plant's shop floor. I've built it in Inkscape and QGIS, but when I try to load it into Tilemill, I get a CRS error. Specifically, it ...
3
votes
1answer
625 views
Wrong tiles generated in OpenLayers XYZ layer
I am creating a map in OpenLayers using Base layer as ESRI online map server. And second layer as our own esri map server serving the overlay. The Base layer shows correctly, but OpenLayer requests ...
1
vote
1answer
72 views
Mapnik - Weird tiles rendering when used with spatialite
I use Mapnik in an GeoDjango App with Spatialite 4.0 as backend. There is something weird with the tiles that I suspect might be related with a bad handling of mbr with spatialite.
If you look at ...
1
vote
0answers
67 views
Creating responsive interaction with tiled maps
I think I may have two conflicting aims but...
I need to create responsive Choropleth map very similar to http://leafletjs.com/examples/choropleth.html or
...
