Google Maps is a web mapping service application and technology provided by Google free (for non-commercial use),

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2
votes
1answer
2k views

WMS GetFeatureInfo and Google maps api V3

Is there a way to request GetFeatureInfo from a WMS service with the Google maps api v3?
2
votes
2answers
2k views

Using Google Maps or Bing Maps provided as WMS in MapInfo Professional?

Is there any way that I could use google maps or bing map or other free map provider as WMS in MapInfo Professional 10.0?
3
votes
1answer
508 views

How to generate a grid of horizontal equal-area rectangles in a Mercator projection?

I'm new to GIS so pardon my ignorance and bear with me. I'm generating a grid relative to a LonLat point. To make the cells all equal area, I'm creating it in 2163 projection. The problem is that when ...
3
votes
1answer
282 views

How to map our data with Google Map data

I want to add all the bus route data and create a route finding app for my country since Google map has no data about bus routes in my country but with JavaScript API i could get the shortest path ...
3
votes
1answer
2k views

Georeferencing with Quantum GIS and reprojecting to EPSG:900913

I'm trying to reproject a map to EPSG:900913 The image I'm reprojecting is the following http://i.imgur.com/HmfLW.png I'm using the cities as reference points obtaining the coordinates from Google ...
6
votes
1answer
1k views

Retrieve speed and number of Lanes in Google Maps API, OSM data or any other stream?

Is it possible to return the posted speed and number of lanes of a highway segment using Google Maps API, OSM data, or any other stream (paid for or free)?
2
votes
1answer
631 views

Rendering 3D timezones KML on a 2D map

I'm trying to render a KML layer (with timezones) in Google Maps API v3. The KML layer works fine in 3D (in Google Earth), but when I render it in 2D, the timezone lines that meet at the North Pole ...
39
votes
4answers
6k views

Why has Web Mercator (auxiliary sphere) become the web map standard?

I understand what the difference is between the Web Mercator projection and Web Mercator Auxiliary Sphere (WMAS). I also understand that both Google and Esri have adopted this projection as their ...
4
votes
2answers
899 views

Looking for a Provider of UK boundary data

I'm working on a web project centered around the input and mapping of GIS data. We have a need to display polygons of town boundaries. The RightMove.co.uk website has and uses this data: ...
1
vote
1answer
3k views

How to export KML from points plotted in javascript Google Maps API

I want to export a KML file from points plotted in Javascript using the Google Maps API. Is there a way to do this? I would like the user to be able to log in and see Google Maps, then plot points on ...
2
votes
2answers
1k views

are there any shapefiles for a simple road network of the UK that are similar to what you would find on google maps?

I wish to add a shapefile to ArcMap that displays a road network which is similar to what you may find on google maps. I dont require a detailed ordnance survey map, just the roads
1
vote
2answers
547 views

Project WGS84 to Google using MapGuide and WKT

I'm having trouble projecting a simple WGS84 formatted layer over google maps. I can't find a good WKT "API" that not only shows parameters, but explains what each parameter is. The coordinate system ...
3
votes
0answers
1k views

Converting projected coordinates to google maps pixels

I have a single polygon in a local projection system. I would like to convert that polygon into an image that can be used as an overlay on google maps. I understand that it may be better to use ...
3
votes
1answer
983 views

Retrieve road segment from Google or Bing Maps

Let me see if I would be able to explain this correctly... Both Bing and Google Map geocoders can return you and a point given an address. Is there any way to retrieve an 'address range' instead i.e. ...
4
votes
3answers
800 views

Google earth Borders on Google maps

Google earth comes with a variety of borders, for example: International Borders 1st Level Admin Borders 2nd Level Admin Regions I was wondering if it is possible to render these borders on Google ...
2
votes
1answer
119 views

Is it possible to cancel a request for a KmlLayer, and load a different layer, before it is actually visible

Having asked for a google.maps.KmlLayer, and whilst waiting for it to load, is it possible to cancel the request? Calling layer.setMap(null); seems to causes an error if the layer is not yet visible. ...
0
votes
2answers
253 views

How to realign misplaced GeoTiffs?

I have bought a few (30) GeoTiff maps from my country's Geo-department - South Africa. They all have a date in the filename and the newest one was created in 2004, I see one is dated 1977 - that old! ...
3
votes
2answers
1k views

Stylized map workflow: Illustrator to Google Maps / OpenLayers

The aim My current aim is to create a series of (heavily) stylized diagrams and maps. I'm not very familiar with any GIS software, so my weapon of choice would be to use illustrator for creating the ...
5
votes
1answer
2k views

Is there an event fired when a kml layer has finished loading in google maps?

Is there an event fired when a kml layer has finished loading in google maps? Google maps api version 3 To add a layer I have code like: var layer = new google.maps.KmlLayer(layerUrl, { map: map, ...
6
votes
3answers
3k views

Connecting markers by following the roads in Google Maps

I have many markers in a kml file. All the markers are on the roads. I wonder if there is a way to process the data and connect the markers by following the road? Of course, the markers should not be ...
0
votes
1answer
458 views

Problem running bounding-box queries

I am working on a google map application, to display the items that are listed in the selected rectangular area. Below image give you some understanding. Based on the co-ordinates ...
2
votes
3answers
4k views

OpenLayers weird problem with GoogleMaps base layer and WMS overlay

I'm trying to overlay a WMS layer over GoogleMaps base one. The WMS layer is defined like this: var catastro_layer = new OpenLayers.Layer.WMS( "WMS Catastro", ...
4
votes
2answers
6k views

register event “loadend” on layer

I'm trying to register a listener event on "loadend" for my google maps layer on OpenLayers. But for some reason it's not firing. There must be something small i'm overlooking. What is wrong with my ...
8
votes
2answers
4k views

How to cluster Google Maps kml overlay

I have several thousand markers stored in a kmz file that I load into a Google Maps (v3 API). I've looked around to find a way to cluster the overlay data, but to no avail. MarkerClusterer looks ...
2
votes
1answer
2k views

sharpmap overlay mapinfo on bing/google

I want to use sharpmap to overlay a mapinfo tab file onto google or bing. I have it working pretty much at the moment however the co-ordinates that bing/google show are in correct so my mapinfo file ...
5
votes
2answers
633 views

BBOX and Projections of WMS services in Geoserver

we have tried to overlay a raster layer on Google map and have some difficulties to align the raster images onto the base map. When it is on the overview (Zoom level 1), it looks like this: On a ...
4
votes
2answers
930 views

Determine tile identity of tile set displayed on Google Maps/OpenStreetMap

I'm not sure if this is best way of approaching this, so I will explain where I'm coming from first. I want to load data onto my webpage containing a map based off a lat/long point. The only way I ...
19
votes
6answers
13k views

What's next if our KML is too big/complex for the Google Maps API?

Our web app includes simple mapping capabilities (currently just markers and KML overlays on an embedded Google Map). This works pretty well; the only real limitation we face is KML overlays that go ...
2
votes
3answers
295 views

Does Google Maps follow W3C guidelines for accessibility

Hello Does google maps conforms with the w3c accessibility recommendations(A,AA,AAA)? Cheers
11
votes
5answers
1k views

Satellite Imagery Providers

I'm building a web application - my requirements are: Must have global satellite imagery. Must have easy to use API's that are capable of geoJSON data imports, mouse and keyboard gestures, etc. To ...
2
votes
1answer
3k views

How to change the zoom on an embedded google mymap?

I embedded a google mymap in my website using the embed code they provide. However it is zoomed much too far out. How can I zoom it in? I added the second character (undrscore) so it would display. ...
3
votes
1answer
7k views

Select more than one place at a time in Google Earth?

I've got a Google Earth .kmz file opened in my copy of Google Earth 6.0.1.2032 running on Mac OS X 10.6.7. There are about 5000 points/"places" in the file and they show up fine. What I would like to ...
2
votes
1answer
914 views

Geowebcache does not displaying map tiles in EPSG:900913 from a remote WMS server

I connect Geowebcache to a remote WMS service through their Getcapability request by adding the url in geowebcache-servlet.xml document. Geowebcache demo page displays the list of wms layers from ...
2
votes
1answer
4k views

Highway Mile Markers to Lat and Lon?

Is there a way to search for highway mile markers on an existing mapping system and find the lat and lon?
5
votes
1answer
9k views

How can I get a KMZ file with image to show in Google My Maps?

Maybe this isn't possible but does anyone know a way I could get a KMZ file that includes a raster image to save into Google My Maps. I can get the KMZ to display fine with image by uploading it to ...
7
votes
1answer
1k views

How to create a 4096x4096 png from a 1440x720 data set using GDAL?

I'm having a bear of a time trying to do something that seems fairly straightforward. I'm trying to take a netcdf file from ftp://eclipse.ncdc.noaa.gov/pub/OI-daily-v2/NetCDF/2011/AVHRR-AMSR/ and turn ...
2
votes
3answers
5k views

Interpolate points between coordinates for smooth animation in google maps or openmap

I have an application where we want to create an animated route based on recorded points. I have an example that use the google maps driving directions, however, we already have points and they are ...
2
votes
4answers
3k views

GIS newbie, How to georeference a jpeg metro map using OSS?

I have a metro map in jpeg format and I want to georeference it. My goal is to find GPS location of the metro stops and visualize them on google maps. Probably, the first step is to overlay the map ...
3
votes
1answer
226 views

Unexpected Result After Reprojection Attempt

I'm a member of a student team that is currently researching how to query raster information using PostGIS v2.0. Our raster's coordinate system is EPSG 2236 (NAD 83 / Florida East) and as we will be ...
8
votes
4answers
2k 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 ...
7
votes
1answer
1k views

How to setup GeoWebCache to produce same grid as GoogleMaps?

Is it possible to create gridSet in GeoWebCache which has same number of zoomlevels with scaleDenominators compatible with google maps? There is EPSG:4326 default, but no mention of number of ...
11
votes
2answers
1k views

Drawing Day and Night on a Google Map

I'm looking to plot day/night on a Google map, for an arbitrary point in time. I'm familiar with generating map tiles; I'm just looking for an algorithm to tell me whether a particular point on the ...
31
votes
10answers
52k views

What ratio scales do Google Maps zoom levels correspond to?

Can anyone provide me with a link (or some details) on the actual ratio to "zoom level" figures for Google Maps? e.g. Google Maps Level 13 = 1:20000
3
votes
2answers
350 views

Can one hide the Lat/Lng information sent to Google maps?

most services that use google maps have the Longitude / Latitude stored in the source to be sent to google maps to render their markers. However on this site (sorry Chinese) ...
2
votes
2answers
3k views

ARC GIS 10 + Google Maps API

Assalam o Alaikum I am new ARC GIS, is it possible to create a website that uses Google Map API but imagery from the ARC GIS 10 REST service? Actually, I like the functionalities provided by the ...
5
votes
3answers
1k views

GPS coordinates to neighboorhood?

I have tried both Google and Yahoo's Geocoding services to get the Montreal neighborhood/district from GPS coordinates but while they are both able retrieve the correct (address, city, state, country) ...
2
votes
1answer
2k views

Google Maps API v3 vs v2 (JavaScript): overlay problems

I have been using the Gmap API (v2) for dynamically displaying some data: oMap.map = new GMap2(document.getElementById("map")); oMap.geoXml = new ...
0
votes
6answers
2k views

Is it possible to query a MySQL database using the results from map.getBounds() with Google Maps API v3?

I have a MySQL database that contains a large number of polygons, one for each district on a map. They are all quite complicated and it's unrealistic to simply load them all at once. I've looked into ...
6
votes
1answer
3k views

Draw route direction overlay on Google Maps or OpenLayers

I'd like to display the route direction generated from GraphServer on either Google Map or OpenLayers. The result I want is basically identical to how Google Map shows route directions, by ...
5
votes
3answers
1k views

Server side clusterer for Google Maps

After doing a lot of research on different types of clustering coordinates (server side) I am still having problems with choosing the best approach for my project. My requirements: Ability to work ...