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

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1answer
872 views

Googlemaps Layer on Openscales

I'm using openscales in a web mapping project, i would like to add a Google maps layer, i know that there's some licence problems , but i don't care for these licence issues, i'm looking to add ...
2
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3answers
2k views

Why are the tile coordinates different in Google maps and Google earth?

I have a .NET application that typically uses the standard Google Maps JavaScript API V2. Within this application I am using a GTileLayerOverlay to add my own custom dynamic tile layer. function ...
3
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1answer
449 views

making choropleth maps using PostGIS Windows

i read an article on chicago tribune blog about making maps, it consist on "making choropleth maps using PostGIS, TileMill, Mapnik and Google Maps" on Mac environnement, my question is how we can ...
0
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1answer
150 views

How to get Polygon Co-ordinates which is at angle X? [closed]

Let say I have a line, which co-ordinates are (0,0) and (5,0) which is straight. Now I move the line to 45 degree. What will be co-ordinates now? Similar, I have to do this for triangle, polygon. I ...
6
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4answers
4k views

How to scrape data from a google map (in flash)?

I've contacted the author of this NYC homicide map from the NY Times several times to see if he could send me a spreadsheet of information the data is based off of, but I have not had any response ...
3
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2answers
1k views

OpenLayers with Google, Bing & MapQuest - Does it violate the terms of service?

to my understanding, you are not allowed to use the Google Maps API to display Google and Bing maps (Layer Toggle) (From the terms of service). However, I'm unclear if I can have an OpenLayers map ...
2
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1answer
1k views

How to unproject coordinates on a Google map with Openlayers?

Below is my code and a pic. When I finish making my circle on a Google map with Openlayers, I get the following coordinates but I want coordinates like E.G: bottom: -27.762124575762 left: ...
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4answers
8k views

How to use Google Maps V3 Geocode with Openlayers

How to use Google Maps V3 Geocode with Openlayers. Below is my code but the function does not execute when I try to integrate it with Openlayers. This works with my original google v3 file. Below is 2 ...
3
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2answers
401 views

Third party base layer other than Google map

Can we use third party base map (images tiles) for displaying vector data?, like we use google map as base layer for displaying vector data in OpenLayers application.
0
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1answer
799 views

Any example for Google like the bing OpenLayers/examples/bing-tiles-restrictedzoom.html?

I would like to restrict zoom levels in Open Layers for a Google Map. A bing example shows how to limit the extent of the bing tiles: var road3 = new OpenLayers.Layer.Bing({ name: "Road tiles ...
0
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1answer
430 views

ESRI JSAPI: How to use GMap3 as 1st layer when using gmaps-utility-gis.googlecode.com?

This question relates to ESRI JSAPI and Google Maps V3 integration... I've put together this fiddle http://jsfiddle.net/br4pk/1/ which demonstrates a mismatch between the LOD of the map and ...
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1answer
1k views

Creating a Google Maps GroundOverlay with UTM NAD83 data

Edit4: The solution I posted from Jenner at VBforums was, obviously, in VB, and I used an online converter to port it to C#. Something was lost in translations, and that's why it was 10 miles off. ...
2
votes
3answers
515 views

How to insert reversed map with Google Maps API?

Is there a way to put map with Google Maps API to a website, but upside down? North must be down, and south up. Is there any possible way to do it? I really need to put map that way and I need really ...
5
votes
1answer
315 views

Is it Better to Use Google Maps or OpenStreetMap When Dealing With Data Points in both Urban and Rural Areas?

My application tracks cancer-related trends across multiple US States. Most of the patient data in the application deals with people who live in poor, rural, or under-served regions. We want to start ...
4
votes
3answers
5k 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 ...
36
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3answers
52k views

How to add Basemaps from Google or Bing in QGIS?

Like ArcGIS Desktop has the option of using basemaps from ArcGIS online, does QGIS have any such options?
0
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1answer
467 views

Google Map layer loads tiles even if this layer is disabled in OpenLayers

Sorry for cross posting I've asked this question in OL mailing list, but not get response yet. It is very important for me to resolve this issue. I've made a little example that reflect my problem. ...
2
votes
2answers
956 views

Is it possible to do scale dependent rendering in Google maps with KML?

I have some data that I would like to display in greater detail as the user zooms into the interactive Gooogle map. Does google support dynamically turning layers on and off depending on the scale? ...
2
votes
1answer
3k views

How to use Google Default Pan/Zoom controls in openlayers

I am using Google maps version 3 with Openlayers,My question is how do you use the default google control for Panning and Zooming and not the default controls Openlayers panning and zooming(The dark ...
1
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1answer
922 views

How to add pins to my map?

Is there a way to add locations and info windows to my own map in .tif format? I'm using MySQL and PHP. Can I use Google Maps API pins but not their map? I thought I can put my georeferenced map ...
0
votes
2answers
413 views

Is there a way to get Openlayers' KML reader to deal with tessellation?

I'm trying to use OpenLayers' KML reader to display a KML file on a map, but the KML itself has LinearRings tha have a tessellate value of 1. I realize that this is used by google earth to snap the ...
7
votes
3answers
8k views

How to calculate the optimal zoom-level to display two or more points on a map

We want to display several markers on a static map and want to calculate the optimal zoom-level like Google Maps does. We already calculated the bounding rectangle and the centerpoint of the map but ...
0
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2answers
4k views

Source for countries/country codes for the entire world?

Is there any Google API which would return all the countries in the world with the country code?
5
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3answers
3k views

Is it possible to get coordinates for locations from Google Map?

I wonder is it possible to get coordinates (of pins) from Google Map which is integrated in some website?
2
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1answer
934 views

How to use Google's Distance matrix on server side?

I am developing a web application wherein i need to find the closest bus-stop from a users location and mark it on a map. I have the list of bus-stops on my server. I am using Google's Distance Matrix ...
7
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1answer
162 views

Using Google Maps to track work per building and allowing users to manipulate that data

I work part time for a political campaign office, who are going door-to-door for several months at a time, all over a city. We need a system to track where we have been, and how long ago we were last ...
2
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1answer
2k views

Is it possible to export a layer with a related table to kml/kmz and view related data in Google Maps?

I have a polygon shapefile with a related table in ArcGIS 10. When I use the "Layer to KML" tool to export the shapefile and then load it into Google Maps, it doesn't see the related data. I would ...
0
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2answers
4k views

Map Info tab file in Google Map

In my asp.net 3.5 application , I'm using Google Map API v3. I want to draw layers using MapInfo Tab File and showing them on GOOGLE MAP ( API V3). Anyone have any idea about this . Thanks
2
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1answer
2k views

Getting Started with Map Server 6 and Google Maps

I'm relatively new to GIS, but what I'd like to do is display map layers on top of Google Maps. From what I understand, mapserver provides the tiles that can be overlaid onto a Google Maps page. I'm ...
14
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2answers
4k views

Is it possible to gray out a Google Maps map except for some area?

What i am looking for is a way to emphasize a certain area on a Google Maps map by graying out the rest of the world. I heard about some solution of using 2 polygons of which 1 is visible and the ...
4
votes
4answers
1k 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 ...
1
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0answers
253 views

How to Modify Polygons in GeoDjango?

Just getting acquainted with GeoDjango. Have Basic Tutorial app created with sample world data. In trying out the admin, I appreciate seeing the polygon on the map and a couple basic tools for adding ...
4
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4answers
3k 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 ...
5
votes
1answer
1k views

What is the best map provider solution for repetitive routing use?

[edit] What is the best solution in terms of cost effectiveness, stability & speed for running a lot of routing requests and comparing them. lots of times over and over? I understand now that it ...
3
votes
2answers
1k views

Simplifying Shapefile using ArcGIS Desktop or alternative?

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 ...
1
vote
2answers
937 views

How to create a custom Balloon for Google Earth?

I just came across one question related to google maps in stackoverflow. Google Maps: How to create a custom InfoWindow? I really like the popup that they mentioned in the question and the image is ...
3
votes
2answers
7k 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 ...
6
votes
1answer
306 views

Plotting 1M+ intensity reading as custom shapes with Google Maps

I currently have a database (Mongo, atm) holding roughly 1M points of data corresponding lat/lon/intensity values that I'd like to plot over a region using the Google Maps API. Ideally, I'd like to ...
4
votes
1answer
679 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 ...
2
votes
3answers
197 views

Best program for crowd-sourced polygons on Gmaps

Looking for a way to crowd-source polygon creation on GMaps (in a wiki environment) that doesn't involved ESRI's expensive server software. Requirements: - a bunch of different wiki pages can be ...
3
votes
1answer
2k views

MS SQL Server's STDistance output differs from Google Earth/Maps straight line distance

I am testing SQL Server STDistance function in the following way: DECLARE @g geography; DECLARE @h geography; SET @g = geography::STGeomFromText('POINT(53.553813 9.99158)', 4326); SET @h = ...
5
votes
3answers
2k views

How to toggle Fusion Tables layer on/off based on map scale?

In the Google Maps API v3 I'm displaying points derived from a Fusion Table by specifying a FusionTablesLayer Is it possible to set a minimum/maximum scale on this layer, so it turns off when zooming ...
4
votes
1answer
5k views

Transforming EPSG:3857 to EPSG:4326

I am new to gdal and have a simple question. I want to transform an image from OpenStreetMap projection to Nasa Blue Marble projection. What I understand is that OpenStreetMap projection is EPSG:3857 ...
5
votes
1answer
6k 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 ...
3
votes
1answer
2k views

Pan & Change Zoom to show Fusion Tables Query Results in Google Maps JavaScript API V3

I've created this map -- https://s3.amazonaws.com/pdb.files/lookup_auto2.html -- using Google Fusion Tables and Google Maps API. I'm attempting to modify the code so that the map will pan and zoom ...
3
votes
1answer
508 views

What are the requirements for using Google's GEvent?

For a current project, we need to know when a Google map is done loading all of its tiles. I found the following question, which was for the same basic problem: register event "loadend" on ...
5
votes
1answer
994 views

Calculating radius / buffer on EPSG 3785 in meters vs buffer in WGS 84 in meters

The goal is working in EPSG 3785 and in particular Google Maps, one wishes to render (on a tile) a circle of a given radius in meters. The rendering is done in pixels. I would guess that one could ...
1
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4answers
2k views

Map in an iFrame - open hyperlink from infoWindow in the calling page

I've got a Google Map being served inside an iFrame on a page (eg xxx.com/PageWithMap.html) The code for the Google map sits on another domain (eg yyy.com/MapCode.html) So it looks like this on ...
5
votes
1answer
3k views

How to restrict zoom levels in the Google Maps API

Is it possible, in the Google Maps API v3, to restrict the zoom to specific levels (eg 16 and 7)? In my case I wish to show city points at a global scale, then show suburb polygons when zoomed in - ...
17
votes
5answers
11k views

Map projection in OpenLayers

I want to overlay some data whose projection is WGS-84 on Google map layer in OpenLayers. But I just can't make them in the right place. I did as follows: map = new OpenLayers.Map('map', { ...