Google Maps is a web mapping service application and technology provided by Google free (for non-commercial use),
4
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4answers
1k views
Using a list of geographic locations, and determining the X closest locations to a user-defined location
I've got a list of geographical locations in an Excel spreadsheet. I want users to be able to search for a user-defined location, and then have the X number of closest locations from the list pulled ...
4
votes
2answers
424 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: ...
4
votes
3answers
2k views
How to get an address or location from Google Maps?
How can one get the street address and/or coordinates of any location on Google Maps with a minimum of fuss?
Google Calendar will spawn a window with a map to the location one specifies in the ...
4
votes
3answers
628 views
Check if lat/long point is within a set of polygons using google maps
I know how to do the above using Esri (Query task on shapefile), but can this also be done using Google Maps? Do I have to query each polygon or is there one method to query a set of polygons?
4
votes
2answers
321 views
Maps API that look “fancy”
We have been using Google Maps V3 during the development of a web service. We've been struggling with getting the maps integrate good with the design, since the maps look kind of grey. Now when i look ...
4
votes
2answers
2k views
Is there a library to make custom markers for Google Maps API V3 by setting the marker's icon, labels and opacity?
Is there a library to make custom markers for Google Maps V3 by controling the icon, labels and opacity?
This library for Google Maps API V2, Labeled Markers, seems OK, but I was hoping for a V3 ...
4
votes
1answer
224 views
Can someone explain in simple terms the licence on Google “satellite” images?
What can I and can I not do with the Google satellite images?
4
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1answer
1k views
Google Maps API: Is there a way to do proximity analysis to POI
Using Google Maps API can I do proximity analysis, for example:
In a state, let's say Virginia, display all the points that are 500 ft/m from a POI such as McDonalds or Bob's Diner, 1,000 ft/m from ...
4
votes
1answer
1k views
Best way to visualize Google Maps and Mapinfo (or SHP or SQLite) at the same time?
I am having a bunch of Mapinfo data of a large area. This data has multiple layers and is also available as SHP, and of course it could be easily converted to SQLite ("SpatiaLite"). Although probably ...
4
votes
2answers
191 views
Using a web map to identify and access data
I am trying to making a webpage where the user pans and zooms on a map, and based on the location and zoom level, some data is displayed on the webpage (drawn from another source). The data that will ...
4
votes
3answers
284 views
Search by street name/postcode in OpenLayers
Can anyone help me search by street name in OpenLayers? I essentially want to be able to search fir streets/postcodes in openlayers in the same way I can search on google maps. Is this possible.
...
4
votes
2answers
3k views
How do you get the coordinates from a click or drag event in the Google Maps API V3?
I have made a Google Version 3 Geocoder , I want to be able to pick up the coordinates of the marker when it is dragged or clicked. Below is my code:
<!DOCTYPE html>
<html>
<head>
...
4
votes
1answer
404 views
Open street map accuracy problem
I want to locate shops with open street map. For that I send a query to nominatim, a webservice which geocodes coordinates from addresses.
I draw a marker at the returned coordinates, and it´s ...
4
votes
1answer
2k views
Google Map API 3 with OSM overlay
I'm using GeoXml3 to parse XML files in Google Map and would like to add OSM as custom maptype. I fiddled with this example but it hides completely the original Google layers.
I've found a couple of ...
4
votes
1answer
4k views
How to highlight the area in google map on mouse hover
I want to implement a feature in my app (gmap powered) to highlight the area on mouse over. Much like the functionality in wikimapia. Check out the pic
or url
But i could't find any info on how ...
4
votes
1answer
225 views
How to find the nearest polygon from a given point?
Basically I have set of points [lat-long pairs] which defines different polygons on map. Now I have a coordinate [lat-long] from which I want to find the nearest polygon from that point.
Any help ...
4
votes
3answers
738 views
Is there any way to add a google maps layer in a qgis web client project?
Is there any way to add a google maps layer in a qgis web client project?
I made a qgis project using a google maps layer from OpenLayers Plugin. In
my desktop project, this layer works fine. But ...
4
votes
3answers
3k 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 ...
4
votes
1answer
2k views
Calculate lat lon bounds for individual tile generated from gdal2tiles
I have multiple tile sources generated using gdal2tiles I'd like to present on the same map. So when presenting a tile I need to determine which source to serve it up from, checking against the ...
4
votes
3answers
400 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 ...
4
votes
1answer
3k 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 ...
4
votes
3answers
3k views
Using the Proj4js library to convert from Google Maps to projected values
I'm using the proj4s javascript library (based on advice from this question I asked previously) to convert lat/long values on my webpage. This page receives the lat/long values from google maps and ...
4
votes
2answers
135 views
Detecting trends in local business web services
Do you know any research paper about spatial data mining algorithms to retrieve trends about local business services (such as google places.. etc)
let's say most rated restaurants this week.. etc ?
...
4
votes
2answers
3k views
Removing polylines from google maps
I have a point where a Gpolyline line is drawn from a marker to another point. After I click on it a second time, I want to remove the polyline. How do I remove the line after clicking on the marker a ...
4
votes
2answers
617 views
Can you use Google Maps offline, with OpenLayers?
I use OpenLayers, GeoServer and PostGIS in my application. Is it possible to have Google maps offline? No need to connect to internet to get it. I'm working to make my app working offline only for ...
4
votes
3answers
119 views
Time-aware layers WCS Service
I am currently developing an application that requires to display raster images over a period of time (I'm looking how Hurrican Sandy progressed). While investigating, people have suggested that I ...
4
votes
2answers
442 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 ...
4
votes
1answer
1k 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 ...
4
votes
3answers
3k views
OpenLayers: Showing a WFS overlay on top of Google Maps
I have found similar questions asked previously, but I still fail to get a simple WFS point layer to work using OpenLayers and Google Maps. The original code I used was based on WFS polygon layers I ...
4
votes
2answers
518 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 ...
4
votes
3answers
690 views
Google Maps with Tiled Image
I'm trying to get a weather image to display on Google Maps, however in my comparisons to others it seems as if my image is slightly to small (Vertically).. I'm wondering what I might have done wrong ...
4
votes
1answer
66 views
Why does the added raster layer have strange edges?
I'm using Geoserver in conjunction with the google maps API to add a raster layer onto a map. It loads fine, however there's some strange problem with opacity at the edge of the layer where you can ...
4
votes
1answer
850 views
Overlaying WMS from Mapserver in OpenLayers with epsg:900913 from Google/Bing/OpenStreetMap
ADDED: Another curious effect is that no matter to what scale I zoom on the baselayer google/bing map, the WMS overlay is always the same-sized shot of MN. That is, as the baselayer map is scaled up ...
4
votes
2answers
269 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 = ...
4
votes
4answers
718 views
Why does this Mapserver layer not overlay correctly onto Google Maps?
I'm using mapserver to serve an overlay of weather data onto a google map (V2) and the weather data is not displaying where it should.
The image below shows the problem i am having. The black lines ...
4
votes
1answer
886 views
Coordinates of upper left corner in the world file?
According to Wikipedia and ESRI last two lines in the world file represent x and y coordinates of center of upper left pixel.
Now, if I have a world file like this:
32.0
0.0
0.0
-32.0
691200.0
...
4
votes
1answer
48 views
Changing projection in KML from Google Earth to Maps
I have created a bunch of map tiles for Google Maps mistakenly using the Google Earth projection. Is there a tool available to batch warp the KML files to the correct projection or will I need to ...
4
votes
1answer
114 views
How do you define rail network branch geocodes
As per the attached document I'm trying to define a rail network by providing geocodes for each rail stop, how would I define a 'stop' as a junction for a branch in the network without having to ...
4
votes
1answer
175 views
What are some options for embedding Google Maps into a WordPress site?
Background
A non-technical user would like me to embed a Google Map into a WordPress-powered site. She needs the ability to add markers using a simple mechanism, and to link those markers to pages ...
4
votes
1answer
364 views
How to decode Google's proprietary latLon format for China?
This Google Maps link returns train stations in Shanghai, China. By appending '&output=js' it returns it in JSON format. I'm trying to decode the format Google uses for lat/lon:
latlng:{
...
4
votes
1answer
120 views
Simplest Way to Create a Custom Choropleth Map for a Website?
I am working on a choropleth map for a real estate site. My current workflow is:
Edit and save SHP file's DBF in Libre Office Calc.
Load SHP file into Quantum GIS. Set colored breakpoints based on ...
4
votes
1answer
196 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 ...
4
votes
0answers
687 views
Calculating compass bearing between two GPS coordinates… with a twist
I'm building a virtual tour application that uses Google's streetview code to render the panoramas into a non-distorted view. Each panorama has 1 to n links where the user can select to move on.
I ...
4
votes
2answers
230 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)?
3
votes
2answers
1k views
My house address isn't listed on Google Maps
When I search for my address on Google Maps it cannot be found which means I can't order takeaway etc.
Is there a way of adding my address to Google Maps or even add a street address? I want the ...
3
votes
2answers
3k views
How can I display this polygon in Google Maps, properly
NOTE: this question is sorta like a follow-on question to this original GIS Question I asked. In that question, the main suggestion was that I was trying to show two polys. Now, I'm asking about a ...
3
votes
2answers
579 views
Simplify Shapefile
I have a shapefile that contains neighborhood boundaries that I want to simplify. Right now I am thinking of converting the shapefile to Google maps KML so I can insert the boundaries into the map as ...
3
votes
2answers
249 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)
...
3
votes
2answers
63 views
Where can I get public transportation route information for USA?
I'm trying to find a list of public transit route information, mainly location of bus and train stops for the US. I've looked around at some of the Google products and openstreetmap but can't find ...
3
votes
2answers
339 views
How to convert ESRI SHP to KML with correct coordinate system?
I am working on this SHP file, containing geographical district of Hong Kong. I would like to export this to KML and export it to Google Map for overlay.
After I converted it to KML in QGIS (just ...
