An image file containing a section of map.

learn more… | top users | synonyms

0
votes
0answers
149 views

mapnik error - fatal flex scanner internal error--end of buffer missed

I am using Mapnik 2.0.1rc0 on a Windows 7 with python 2.7 32bits inside a GeoDjango App. I often got this error: fatal flex scanner internal error--end of buffer missed that makes python to crash ...
2
votes
0answers
86 views

efficiently slicing tiles with gdal C API

Im working a project using the gdal C api(in a block of objective-c) to slice TMS style png tiles. The code currently works, but I'm running into some trouble optimizing to run fast enough for use on ...
1
vote
1answer
214 views

From local tiles to WMS via Mapproxy

I have any local tiles (seed via Mapproxy) of any local area. May I configure mapproxy that I can use a local tile directory on my computer as a source and get the output then WMS ? I've already ...
0
votes
2answers
800 views

how to use mapproxy to serve WMS from reprojected google maps tiles

how to use mapproxy to serve WMS from reprojected google maps tiles, i have searched for docs, but there's no docs which describe how to add google maps as source.
0
votes
2answers
64 views

What is the difference between the calculation for tiles generated with different projection?

I found that the tiles are generated under the Mercator projection in openstreetmap(here). And in the wiki page,they provide the Derivation of tile names which is used to Calculate the covered tiles ...
1
vote
1answer
544 views

GeoServer: Receive multiple tiles from layer

Using GeoServer you can do a WMS request to receive a single PNG representation of a certain layer using something like this. ...
1
vote
1answer
512 views

Using GeoWebCache to cache google maps tiles

I'm new to GIS and I would like to know if anybody could give me a quick example of using geowebcache with google maps tiles. Thanks.
1
vote
2answers
358 views

convert my large svg image into tiles

This is probably going to annoy the more experienced map people here, but I'm sort of new to all this, or at least I don't have a lot of experience. I know this is a bit strange and not ideal, but I ...
1
vote
1answer
287 views

Speed up OpenLayers TMS

Hopefully someone can help. I'm using OpenLayers and have a TMS layer with local tiles stored. When drawing the tiles it seems slow, I see the tiles load one by one. Is there a way to make getURL ...
0
votes
1answer
295 views

How do i use gdal2tiles for creating tilecache?

I want to create tiled cache from raster file, so i downloaded gdal2tiles.py. Now i don't get what (and how) i must do with that python script file.
3
votes
1answer
180 views

How often are MapQuest tiles updated with new OSM data?

When users make edits to OpenStreetMap, how long does it generally take for those edits to show up in the MapQuest tiles? Is this on the order of hours, days, or months?
1
vote
2answers
1k views

how to replace GTileLayer in google maps API v3

I need to port code of one application written in Google Mapa API v.2 to API v.3. There is several layers taken via TMS, that are displayed using GTileLayer class. It is as simple as: var ...
2
votes
1answer
132 views

In OpenLayers, is there any way to convert polygons to tiles?

I have a OpenLayer map which by enabling a feature by user, a very huge table of polygons (lots of small areas, with information and metadata for each) will appear on the map, which rendering this big ...
1
vote
0answers
181 views

Map tiles and max/min latitude and longitude

I'm trying to build a map based on a center point lat/long, the map will always be a fixed size say 1024 by 1024. The user can chance the center point and zoom. If I populate the map with map tiles ...
4
votes
1answer
384 views

Generate tiles for google maps overlays

I am trying to show some information on Google Maps which would be in the form of translucent circle overlays. The problem is that some circles overlap, which results in increased opacity and blending ...
1
vote
0answers
151 views

Geoserver Tile Generating

I'm a complete newbie at this so please excuse my lack of knowledge. I need to be able to place hundreds of thousands of points on a map. I'm using OpenLayers with Google Maps base layer and I just ...
1
vote
1answer
61 views

Styling map elements based on their properties

I am currently generating tiles based on OSM data using Mapnik and Python and am quite happy using the XML styling but I am at a loss as to how to vary the styling on an element by element basis. I ...
7
votes
4answers
1k views

GeoJSON too bulky - what to do?

I am using leaflet.js to allow web users to select a region. Valid regions are US states, Canadian providences, and world countries (except for US and Canada). I constructed a shapefile myself using ...
1
vote
1answer
481 views

Slow tiles generation for leaflet js

I am currently trying to use leaflet to display images (jpeg or png) instead of maps, I have followed the instructions on this blog post to create the tiles using gdal2tiles.py here is the code we ...
3
votes
0answers
281 views

OpenStreetMap Tiles Not Loading in Firefox 17.0.1 - Pink Background [closed]

I recently ran into an issue where only a pink background is displayed in the openstreetmap on my webpage (tiles are not displaying). I found this topic OpenStreetMap tiles not loaded despite being ...
4
votes
2answers
652 views

How to generate Tiles with QuantumGIS or Mapnik

I would like to know how to generate Map Tiles using QGis. I have heard that it is possible to create tiles using QGis, only, I don't know how to do that. Googling did not work for me since I am not ...
11
votes
1answer
230 views

Giant 2.5 GB JP2 image: How to tile it?

I have a single 2.5 GB JP2 image of a city that I need to split into tiles, which I'll then process to create flight simulation scenery. Google as I might, I can't find the solution. The JP2 ...
6
votes
1answer
2k views

What is the default projection in Leaflet?

I've read an API documentation for Leaflet on its site, but I can't realize: what is a default projection to view maps? It was written about spherical and elliptical Mercator and Equirectangular - so ...
0
votes
0answers
257 views

Openlayers on Android and chrome browser - white lines when using viewport meta tag [duplicate]

When rendering TMS tiles, sometimes there is a white line that shows up between tiles. Not between all tiles, just some, and only sometimes. Pan around and it disappears and reappears again. ...
1
vote
0answers
65 views

History of the web map tile

I'm looking for a brief history of a 256x256 web map tile, in particular who used it first (came up with the idea) and who popularized it. Thanks!
2
votes
1answer
160 views

Tiling Rasters based on an existing Polygon Shapefile (Vector Grid)

I have a tile index representing the tile scheme used to tile Lidar data. I want to tile imagery rasters using the same tiling scheme. I have not found anyway using open source tools to tile a ...
3
votes
1answer
324 views

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 ...
1
vote
0answers
112 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 ...
0
votes
1answer
454 views

What do I need in order to show offline map (tile cached based) of area from OSM using Openlayers?

I want to make an offline map with certain zoom levels of an area from OSM (preferably keeping the styles of OSM). Client will use OpenLayers , If needed I can install Geoserver/Mapserver and MS-SQL ...
3
votes
1answer
221 views

OpenLayers OSM tile boundary

I have a local tile source of OSM tiles. I'd like to show the tile zoom, x, y on the tile so that I can optimize and create small offline groups of tile for specific areas(polygons). I can get the ...
13
votes
4answers
1k 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.
2
votes
1answer
668 views

How can I use tiles in an ArcGIS .tpk file with Google Maps?

ArcGIS can export a map as server tiles as a compressed folder with the extension .tpk, as described in the ArcGIS documentation. However, it is not clear how I can get Google maps to read these ...
1
vote
0answers
330 views

How can I show MapInfo tabs in OpenLayers without using MapXtreme Tile Handler?

I want to connect OpenLayers to mapinfo tabs I have , but I don't have MapXtreme license . Is there a way to show the tabs using different Tile Cache ? I can export the workspace to WOR or MWS files. ...
3
votes
3answers
876 views

Should I use gdal_retile.py or gdal2tiles.py?

I have many GeoTif files that I want to display in google earth with Geoserver. I am wondering if I want to use gdal_retile.py or gdal2tiles.py to create the image pyramids for them to be usable in ...
3
votes
2answers
220 views

Convert multiple TIFFs into one?

I have downloaded the Blue Marble dataset, and it consists of eight GeoTIFF images, labeled like this: A1 B1 C1 D1 A2 B2 C2 D2 I would like to use these tiles for GeoServer to be served as WMS. ...
2
votes
1answer
523 views

How to preload tiles in Leaflet?

I'm trying to make a user controlled cross-layer animation in Leaflet. I have about 70 tileLayer.wms layers, that need to be preloaded on the map before animation can run. The question is - is there ...
1
vote
1answer
193 views

How to choose suitable pyramid levels and tile size?

I have a big tiff file and i want to create tiles with gdal_retile. However I am still concerned about the pyramids levels and the tiles' size. how can I choose suitable pyramids levels (for example ...
1
vote
2answers
357 views

Why is my shapefile not visible in Tilemill?

I have 3 layers of vectors (shapefiles) that I've loaded into Tilemill. However, nothing is visible in Tilemill. What am I doing wrong, and what should I do to get my map to show up? This is part ...
3
votes
1answer
278 views

Add a mbtiles file to TileMill

is it possible to add a mbtiles file as TileMill layer? Thank you, Andrea
3
votes
1answer
455 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 ...
2
votes
1answer
368 views

Create WMS service from existing image tiles

I have image tiles (jpg image files with txt georeference info files; see picture) stored in catalog (about 12GB, size one image tile ~ 275*466 meters). It possible create WMS service of the tiles to ...
9
votes
4answers
801 views

What kind of AWS configuration is needed for running a low-to-medium bandwidth Web map app?

Does anyone have experience with running Web maps (tile server + client JS scripting) on Amazon Web Services (S3, EC2 etc...)? What kind of AWS configuration is needed for running a low-to-medium ...
5
votes
1answer
819 views

Generating tiles for osm/esri shapefiles

I've generated tiles for OpenStreetMap .OSM files using Maperitive and quickly consumed them with leaflet (with no tile cache yet). I'm now looking for the right and simple way to to that also with ...
3
votes
3answers
2k 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 ...
1
vote
1answer
178 views

Issue openlayers and tilestream

Basically I created a MBtiles using Tilemill and it generates a map with six zooms. I implement it into tilestream. I added a layer on the openlayers module(Drupal) in XYZ: ...
1
vote
1answer
194 views

Counting slippy map tiles

I would like to calculate approximately, how many tiles of given size would need to be rendered for a given bounding box and zoom level range in a given projection (always 3857). For example, for: ...
2
votes
3answers
935 views

Optimizing OSM tiles download

Disclaimer: I don't know anything about maps, please excuse me. In our mobile app, we use Cloudmade as our map tiles provider. For certain places, we download multiple tiles for each zoom level ...
4
votes
1answer
414 views

How do I know when to use a map server or a tile server?

I'm new in GIS tech and I still have some questions about GIS. I wanted to know why to choose a map server (mapserver, geomap) instead of a tile server (tilestream, tilecache or tilestache) + tile ...
3
votes
1answer
746 views

How can I use MOBAC atlases in GIS Software (e.g., QGis, uDig)

How can I use the output from MOBAC (Mobile Atlas Creator) as background layer in open source desktop GIS software (e.g., QGis or uDig, TileMill etc.)? My goal: To put my question into context: I ...
3
votes
1answer
239 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 ...