An image file containing a section of map.

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0
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1answer
70 views

how does arcgis server manage tile caches with an unlimited scale choice?

I am familiar with tile caching with geowebcache, but not with ArcGIS server. I imagine the basic concept is the same. First determine how many scales with be cached, set the image quality and format, ...
2
votes
1answer
762 views

Single tiled Mapserver WMS to avoid Labels and features cut along tile borders and repeated labels

I am using Mapserver-wms-openlayers for publishing maps. But there are some issues came across related to duplicate labeling for same feature in adjacent tiles, unwanted breaks in line features along ...
1
vote
1answer
776 views

How to download tiles to use offline [closed]

I need to download tiles of an entire country to use offline. I don't need a server o whatever, I just need to download tiles organised in folders (x y and z). Should I use mapnick? Im on OSX but I ...
2
votes
1answer
596 views

How can I load stricly tiles within the current viewport in Leaflet.js?

I have tiles that are not available for the whole map. How can I stop Leaflet.js/Mapbox.js from making requests to these tiles? There are dozens of 404's that I'd really like to get rid of. Thank ...
1
vote
3answers
50 views

What kind of improvement can be done for raster tiles for mobile usage

We generate raster map tiles and deploy them in the server, then we use javascript in the client to request the tiles and re-organize them to map.(like google map and Openstreetmap). However this is ...
0
votes
1answer
265 views

how to plot gps coordinates on my own raster map?

I have lat log values available in degree format, i donot know how to access raster maps using c#, and how to plot accurately. which libraries should i use and what are the controls avialable ,i am ...
1
vote
2answers
208 views

ArcGIS Server Tiles as Basemap in CartoDB

Has anyone successfully used their ArcGIS Server Tilecache as a CartoDB Basemap? I'm trying to hit mine directly using the XYZ Tile URL Template as follows: ...
1
vote
1answer
42 views

Rough edges on tiles in QGIS

I'm loading four .ASC files into QGIS, each containing topographical data about a tile of 10 x 10 km. On the map, this data is displayed as black/white and different shades of gray. My problem is that ...
1
vote
1answer
196 views

GDAL tiling with a lot of MrSID files

I'm trying to generate tiles for a region with a surface of 85k km2. The data source are MrSID files (2734 files). I'm using gdal to achieve this task. It works fine with a small subset of MrSID, but ...
0
votes
2answers
108 views

How to call Geowebcache tile openlayers [closed]

Can anyone provide the solution, how to call GeoWebCache tiles in openlayers as i have 20GB of tiles created in gwc folder.
1
vote
1answer
310 views

How to draw bus routes on OpenStreetMap with mapnik

I have successfully set up Postgres with PostGIS and MapNik to serve map tiles. The database is populated with data from OpenStreetMap project. I can see that bus routes are in the data-set, but I ...
0
votes
1answer
1k views

offline map tiles in standalone desktop app

Which mapping API can be used (either in a C# desktop app or as a standalone mapping app) that accesses an offline tile collection and requires only a minimal amount of additional servers / other ...
0
votes
1answer
303 views

Map tiles rendering from local map server to disk

I am looking for a solution for following use-case: I need to run a local map server using OpenStreetMap (OSM) data Map server needs to be able to render a set of map tiles to local directory on ...
1
vote
1answer
514 views

TileStache + OpenLayers TMS - Tiles are rendered disorderly

I newly turned to TileStache to render Mapnik tiles because of the caching option. Before, I was using Mapnik python bindings only and it was working perfectly. Now that I use TileStache, the tiles ...
1
vote
1answer
66 views

Custom tiles in local CRS

I want to achieve the following: Create an OpenLayers map, that runs totally in a local CRS. The basic layer would be a raster tile layer. The tiles will be generated by us once for each project ...
2
votes
0answers
153 views

Generate tiles using GPU

I was wondering if anyone has tried already to utilise the GPU in tile generation? I have a quite big dataset so tile generation takes a while (especially on high zoom levels) even on a quite high ...
1
vote
3answers
278 views

Stitch mapbox tiles

I have customized mapbox tiles and i need to print it on A2 size paper on high zoom level at around scale of 500 to 1000. I am thinking of stitching the adjacent tiles together to form a single big ...
1
vote
1answer
322 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 ...
4
votes
1answer
137 views

Openlayers tiles source with poor resolution, how zoom out?

I am using Openlayers to display a map from Vienna Open Data (Capabilities) in an app for mobiles, which have higher DPI screens. The resolution of the tiles is not so good (I suppose because they ...
2
votes
0answers
500 views

Building java based desktop map application using embedded database such as spatialite

I am relatively very new to building GIS based applications and have a very limited understanding in this area. So I need some help in building a java based desktop application which would generate ...
3
votes
2answers
259 views

The fastest way of generating tiles from raster?

I have some MODIS imagery 250m resolution covering a large area which I generate tiles from using Mapnik and generate_tiles.py script. I need to run this script every day with new satellite images, ...
0
votes
0answers
263 views

load custom tile over google map (on location) in android

Is there a way to load a custom map of a country over the existing country in google maps? I'm able to load my custom tiles with tileOverlay but they show in the upper-left corner of the google map ...
1
vote
0answers
145 views

GDAL and Python: How to “pad the extent” or otherwise handle band.ReadRaster() for area falling slightly outside the image bounds?

In a nutshell, I'm trying to create a bare-metal tiling utility using GDAL and Python. As you can see in the graphic below, which shows the perimeter of a raster and the OSM-structured tile index, ...
8
votes
4answers
1k views

Performance of google map tile creation processes

I know that question is rather vague but please bear w/me. I'm trying to get an idea of what sort of product performance - specifically timing - people have seen for various methodologies they have ...
4
votes
4answers
6k views

download ESRI World Imagery basemap for offline use?

So our search and rescue team would like to be able to view ESRI's World Imagery basemap through the free tool (ArcGIS Explorer). Thing is, we will be offline when we are in the field. So - is there ...
13
votes
4answers
2k 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.
0
votes
0answers
258 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. ...
3
votes
2answers
432 views

Access Stamen tiles flavors with OpenLayers

i'm using OpenLayers (v2.13.1) and would like to use Stamen Toner tiles as background. The example is simple to understand : http://maps.stamen.com/test/openlayers.html But i'd like to use the ...
2
votes
0answers
262 views

Buffering a Raster with GDAL and Numpy

I am using GDAL to convert a raster dataset into a numpy.array and then using numpy to buffer the data in the raster. For example, I need to know all the regions within 100ft of a school point ...
2
votes
1answer
2k views

Manually building a tile server

I use this instruction http://switch2osm.org/serving-tiles/manually-building-a-tile-server-12-04/ I have the problem on the step "Starting your tileserver" sudo mkdir /var/run/renderd sudo chown ...
1
vote
1answer
146 views

Gdal image georeferencing and gdal2tiles image flip question [duplicate]

I'm georeferencing an image using gdal and the following command: gdal_translate -of Gtiff -co tfw=yes -a_ullr 0.016264915466308594 51.505109712517786 -0.0024890899658203125 51.492018739579336 -a_srs ...
1
vote
1answer
96 views

Can GeoWebCache serve tiles from blobstore?

Currently I use MapProxy to serve custom sqlite tile stores with a certain schema. I would like to enable GeoWebCache to do the same, but I don't know if GWC work the same way that mapproxy does. ...
3
votes
1answer
1k views

Tile server with dynamic mapnik rendering, caching, and pre-emptive rendering

I've been making some pretty (but computationally expensive) tiles with TileMill and I'd like to serve them up. First, I served them straight from TileMill. Every tile gets rendered dynamically, ...
1
vote
0answers
534 views

How to generate JPEG tiles using gdal2tiles.py

I am using gdal2tiles.py to generate tiles and packing it into MBTiles using mb-util. gdal2tiles by default generates PNG tiles. When I convert PNG tiles to JPEG large black area around tiles are left ...
9
votes
4answers
2k 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
231 views

Mosaic Imagery to Tile Grid

I am hoping to come up with a script that would allow me to mosaic imagery into a polygon tile grid. My hopes is to do this with gdal or QGIS. I am wondering if anyone knows of an existing script, ...
0
votes
1answer
177 views

Modify Map Service Symbology via Esri JavaScript API

I have a JavaScript application built on the Esri JavaScript API that is consuming a feature service and a tiled map service from ArcGIS Online. I developed a widget that allows the user to change ...
2
votes
0answers
163 views

Splitting a bounding box into n amount of bounding boxes

Firstly, I've never worked in the GIS area before nor do I have much knowledge of the mathematics behind some of the stuff I am trying to implement. Perhaps i'm getting in over my head. My Situation ...
1
vote
0answers
293 views

gdal2tiles.py problem - creating mini tiles

I have a similar problem to the issue posted here (gdal2tiles problem). I have 80 GeoTIFFs (4000x4000) with EPSG:27700 projection embedded and TFW and PRJ files. These I have built into a virtual ...
2
votes
0answers
34 views

Protect our WMS map tiles to only accessible from our site [duplicate]

We are using geoserver (2.3) to serve WMS map tiles generated from mapping data we licenced. We use leaflet on the client side to show the map (part of a ruby on rails site running on heroku). Because ...
2
votes
0answers
63 views

How can I figure out whether a sphere is intersecting the Earth between a given lon/lat range?

Given a lon/lat range that represents a tile on the Earth's surface, I need a computationally efficient way to figure out if a spherical volume defined by a point (assume ECEF coordinates) and a ...
3
votes
3answers
4k 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
157 views

Gdal2tiles with tif projection failure

I downloaded this .tif image of the world (small version) from Natureal Earth and tried to convert it to tiles using Gdal2tiles in OSGeo4W. In the terminal, I used the following commmand: gdal2tiles ...
5
votes
3answers
454 views

How to list all names of tile inside a given polygon?

I'd like to generate a specific set of slippy map tiles to cover certain a certain land mass. Given a polygon shapefile, is there something that will quickly generate a listing of the z/x/y tile ...
0
votes
0answers
65 views

Tiles cover Polygon on zoom and move

i'm using OpenLayers.Geometry.Polygon.createRegularPolygon to generate some nice circles. After i draw them to the Map i'm Moving them and after some while they where hiding by some tiles. The circle ...
9
votes
4answers
1k 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 ...
1
vote
1answer
290 views

Get latest tiles from TileMill's tile server in Leaflet

My leaflet app gets the tiles from TileMill's tile server in the standard way: L.tileLayer('http://<myip>/tile/SteveCountryVic/{z}/{x}/{y}.png', { ... }); These tiles are often old, not ...
4
votes
1answer
2k views

Google maps android vector rendering : how do they make it that fast?

Most of the question is in the title. If you are on android (I believe its the same on IOS) and use maps you will notice the quality of the maps app and how the vector maps are drawn in a very fluid ...
1
vote
1answer
620 views

How to change the color of a tile layer?

If I generate a very large number of map tiles (300,000), is there an easy way to let a Google Maps user change their color? For instance, is it possible to change the color scheme of a map tile ...
0
votes
2answers
220 views

OpenLayers shows empty tiles if I toggle my layer

I display my custom tiles with OpenLayers and I have set .olImageLoadError{display: none !important;} in my CSS to avoid displaying pink empty tiles (as described here). In this way empty tiles are ...