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

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0
votes
1answer
324 views

EPSG:3035 wms layer over google maps or OSM

Is it possible to put EPSG:3035 wms layer over google maps or OSM? I managed to do this, but my wms layer is placed differently then google maps or osm. I assume, google maps/osm uses different ...
3
votes
3answers
4k views

How to display 33k placemarks with custom symbols/labels?

I want to overlay address numbers on our embedded Google Map (V3 api). Even though the KML is under 2 MB, it exceeds the 1,000 feature limit; there are over 33,000 placemarks. Fusion tables solve ...
1
vote
0answers
386 views

Using Google Maps with OpenLayers for some zoom levels

I've had a search on here to see if this has come up but I've not found anything, sorry if this is a duplicate. I'm trying to use the Google Maps layers with an OpenLayers site, but not for all zoom ...
1
vote
3answers
4k views

How to convert Lat & Long from Onemap.sg to Google Maps

I have a set of address for Singapore, I would like to take the Lat & Long from onemap.sg (SYV21: X, Y / Easting, Northing) and then store it in my databse , convert into (WGS84: Longitude, ...
4
votes
2answers
1k views

Openlayers - Vector layer polygon doesn't move in-synch with Google V3 baselayers

When a polygon is drawn on the map and the map is dragged, the position of the polygon relative to the GM V3 base changes. function init() { var map = new OpenLayers.Map('map'); var gsat = ...
0
votes
1answer
899 views

Can I reset “latlng” coordinates on Google Maps?

I have made a custom map type using the Google Maps API. I have used maptiler to create the different zoomlayers and the 0 layer (really zoomed out) is a 256 x 256 tile. The image only covers 134 x ...
1
vote
0answers
371 views

OpenLayers - Switching to Google Basemap causes a flicker as it zooms to extent

I created and example based off of the spherical-mercator example example and placed it here. I made the bing road layer the default. If you zoom in on a location and then switch to a google layer ...
14
votes
3answers
589 views

How are Google serving up their Styled Maps?

As we all know, Google changed web mapping when they introduced Google Maps. At the time of writing this, tiled maps are now the norm with web mapping. For example, with ArcGIS Server, you cache ...
3
votes
1answer
1k views

OpenLayers - Vector Layer and Google Maps - vector layer and google layers don't seem to be in sync when zooming on Chrome

I am working with a Google Layer and a vector layer in OpenLayers. I was wondering if anyone else noticed any problems with Chrome displaying Google Maps layers on OpenLayers? It seems that when I ...
5
votes
1answer
151 views

Looking for open-source solution to show map with massive objects(3x3 polygon) on a web site

I don't have much experiance in GIS systems. I am developing a web site which need to show a map with 3m x 3m rectangles for a radius of about 400 meters.(about 58,000 polygons for one location) I ...
1
vote
0answers
539 views

Loading a KML Layer Underneath a Fusion Table Layer

I am working on a map that will incorporate both Fusion Tables and KML layers, parsed through geoXML3. As my Fusion Table Layer is a point file I would like it to always be on top of the KML's which ...
2
votes
0answers
1k views

Overlaying a mbtiles tile layer produced with tilemill over another layer maintaining transperency

So using leaflet, I'm overlaying my base tile layer as google satellite imagery. I want to overlay another layer (Mbtiles layer) produced with tilemill over this satellite layer. I was successful in ...
1
vote
1answer
2k views

Order of KML Layers in Google Maps API V3

I'm working on a website that when finished will allow the user to turn on and off a number of different KML layers using checkboxes, the layers are parsed through geoXML3 and I want to know how to ...
2
votes
1answer
2k views

OpenLayers: add a listener to a single polygon

I want to add a listener to a single polygon. Currently, I am trying to add one that makes a polygon opaque when you click on it, but I should be able to add any general listener. OpenLayers.Layer has ...
12
votes
4answers
8k views

Geocode address once in google maps, save in database, read geocoded result from there on

Is it possible to geocode an address, save the result in a database, then read that result from there on? I'm using a Google map that is geocoding hundreds of addresses which obviously hit the ...
1
vote
1answer
3k views

GeoExt (ExtJS + OpenLayers) not displaying Google Map

I've just started exploring GeoExt. It displays all the map controls, Google Logo and "Terms of Use". But the map is not rendered. I'm using firebug, and no JavaScript errors are generated. I'm using ...
2
votes
0answers
804 views

How to draw an overlay using KML on our own app in Android?

Repost from here Hi there, I want to draw an overlay using .kml files, just look like this. But on my own app in MapActivity. 31.kml, display district in Jakarta, Indonesia or the example that I get ...
3
votes
3answers
730 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
1
vote
0answers
159 views

How to call a PNG file with MapServer and a Google base layer? [closed]

How can I call a png file from map path including a Google map as base layer? I'm working with MapServer and I have some shapes made with Quantum GIS and ArcView. I can call those shapes in a url and ...
3
votes
1answer
967 views

Why does my WMS layer overlap the Google Maps v3 logo?

I'm using Google Maps v3 as a base layer and on top of that I create an overlay pointing to my WMS (streets and avenues). A few months ago all works fine, my WMS layer was not overlapping the Google ...
4
votes
1answer
313 views

Google Earth/Maps aerials via arc2earth producing cuts in PDF output

I just purchased a month of arc2earth. They provide Google imagery backgrounds with great resolution and display fine in ArcMap but after exporting to PDF they have these triangular cuts as seen here: ...
1
vote
1answer
2k views

adding kml to google maps

I am trying to overlay the KML file over google maps and want to know where I can host the kml file which I will then be able to add to the google maps. I tried using google drive and dropbox but they ...
2
votes
1answer
216 views

Simple GIS to Provide Urban Boundaries

I have an app built on top of Google Maps right now and everything works great. I want to add one feature that seems exceedingly difficult. On my site, I want users to be able to type "Boston, MA" or ...
4
votes
3answers
10k views

Solving the Point in Polygon Problem Using Google Maps and Fusion Tables

The Point-In-Polygon problem is fairly well documented on this forum. My question is if there is a way to use Google's free tools, i.e. Google Maps, Fusion Tables, and possibly Google Refine, to solve ...
1
vote
0answers
316 views

Detecting If A Coordinate Is Near Polygon Edges In Google Maps API

Is there a way to add a test to see if a Lat/Long coordinate is near the edge of a polygon? I am building very complicated polygons that have rivers and roads as borders. Because of this, it is very ...
1
vote
2answers
1k views

Turning addresses into GPS coordinates into delivery route?

I have a list of locations (prospects I need to meet) I have to drive to, and I'd like to use either Google Maps or Open Street View to build an optimized route. Are there tools that can take a CSV ...
4
votes
1answer
885 views

Google Maps: obtaining the border of an area

When using the geocode API it is easy to obtain the (centre of the) coordinates of the address. For example: Rotterdam. If you look up the same location in Google Maps you also get the surface area of ...
1
vote
0answers
141 views

Acceptable Reduce() amounts for google maps zoom levels?

I'm using SQL Server Spatial to return large polygons to Google Maps for display. Given that google maps has a zoom scale of 1 - 20, I would like to reduce my polygons (reduce function uses the ...
5
votes
2answers
2k views

Layer misalignment with UK Ordnance Survey data and OpenLayers

I am in the UK and my QGIS projects are based on UK Ordnance Survey mapping data and are set up in EPSG:27700. Whenever I have tried dropping an OpenLayers layer (Google Satellite/Bing Maps Aerial) in ...
1
vote
1answer
9k views

Computing Shortest Distance using Google Map v3 and Openlayers

How to compute shortest route between two points in google map that user selects and provide all routes from source to destination in Transport system?
5
votes
1answer
581 views

GIS-based reporting and maintenance tool

Background Conceptually, I am looking for a tool, or suite of software tools that can be readily integrated to help browse data using a GIS-based map (such as Google Maps). The proposed architecture ...
3
votes
1answer
159 views

Can I customize a Google Maps layer in terms of content?

I don't want all features that come with the Google street layer. I just want basic infrastructure like roads, national parks, cities, streets with their names, etc. Everything that is public is OK. I ...
24
votes
7answers
2k views

OpenStreetMap or Google Map Maker: where should I donate and volunteer my geographical knowledge?

I definitely know a lot about the places I visit and want to share it with everyone. I want to know if donating and volunteering at OpenStreetMap—which is where I have been helping—is a waste of time: ...
1
vote
1answer
721 views

How to color markers based on polygon area?

I have a map with around 317 markers and each marker is the center point of a polygon. The polygonal area varies throughout, so I want to represent the markers in such a way that the polygon with the ...
3
votes
2answers
783 views

Client Zoom in OpenLayers with Google layer

I'm displaying some features on a map, but the features are somewhat on the small side and can't be easily viewed at default zoom levels. Using the Client Zoom example, I was able to enable acceptable ...
1
vote
1answer
5k views

Google Maps MarkerClusterer - Remove all clusters

So, I have a PostGreSQL DB with 317 datapoints - all spatially enabled through PostGIS. I have queried this using PHP as GeoJSON and overlaid it on Google Maps (using a converting routine). I have ...
1
vote
2answers
1k views

Set up the center of a map with Google Layer as basemap in OpenLayers and GeoExt?

I looked on similar questions but in vain. The map is working fine but has a center of (0,0) as returned in the Firebug console not (-8, 32) that I want. I did the projection transformation.. Here is ...
1
vote
1answer
375 views

How do I make a more Bandwidth-friendly map overlay?

I performed a map overlay in Google Earth then saved the overlay as a KMZ file. Then logged into my Google Maps account and uploaded that KMZ file so the map overlay would appear on Google Maps. The ...
4
votes
2answers
1k views

From pdf to google maps overlay

First post, so be gentle. Context - I'm doing some research into healthcare provision and I'd like to visualise the data. I'd like to be able to put these PCT boundaries as an overlay to google ...
0
votes
2answers
8k views

How to convert from UTM Zone 36N Mercator to WGS 84 degrees of lat and long?

I have acquired many coordinates from a points I extracted from polygons. The points are in WGS 84 UTM Zone 36N, and I want to use them on Google Maps. I found out that they use different systems (I ...
2
votes
1answer
1k views

Set ZIndex for Google Fusion Tables in Google Maps API

Is there any way to set the ZIndex of a Google Fusion Table layer in the Google Maps API? I have several Fusion layers added as overlays to a map with the ability to turn them on and off. I want ...
1
vote
1answer
2k views

Data from google maps or bing maps available for offline use? Whole cities, I mean

I was developing some graph-based search algorithms and it would be interesting to use them against some real data. I used openstreetmap against them (downloaded some city-wide OML files from some ...
2
votes
1answer
9k views

Moving Marker in a Google Map on Android

I am trying to create something similar to http://dev.syskall.com/map/ in my android phone application. Basically I have a List of GeoPoints and I need to make the car/marker move on the map ...
1
vote
0answers
464 views

How do I use Proj4js or other technique to make custom map projections with google.maps.Projection?

I'm using Google's Projection class to try to convert my map projection from the default spherical mercator to something like Lambert Conformal Conic. I was previously adapting the code from this ...
7
votes
1answer
4k views

Output polygon data from postGIS and read it on Google Maps API

So, I have a group of polygons stored in PostGIS. I'm trying to build a web application with Google Base maps (using Google Maps API). Now, How do i output the polygons in the right format so that ...
2
votes
0answers
626 views

Tile mode in Map server

I am trying to overlay the layers that are rendered using map server over google maps.I am pretty much new to this whole thing. So I tried to go through this example here here ...
2
votes
0answers
447 views

Using way-points to create pathway - MATLAB [closed]

I'm currently working on a map routing system and am not sure if anyone has done this before. I have collected various way-point coordinates on the map using Google map. How can I create a pathway ...
1
vote
1answer
181 views

Mobile location determination

I was wondering how Google Maps on my Android phone can locate me with a good accuracy when my GPS is disabled. At first I though it was with the cell tower but I'm not sure it can achieve this ...
4
votes
1answer
325 views

geodjango slowness and debugging

I'm using geodjango + postgres to display polygons from tigerline on a map. Pretty simple stuff so far. My issue is that when I use the GPolygon object: django.contrib.gis.maps.google.GPolygon there ...
1
vote
0answers
255 views

Google Maps API for iPhone and Android application

I need to develop map with Google Maps API with markers etc. That map would need to be integrated into iPhone and Android application. That integration will be done by another person. My question is: ...