Google is a public American corporation invested in search technologies, which provides a number of free and paid geospatial and mapping services.

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24
votes
7answers
32k views

Google Maps zoom level --> ratio…?

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
23
votes
6answers
1k 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: ...
11
votes
3answers
6k views

Google Maps layer copyright popup every time map updated / user input

I have used a Google Maps hybrid layer in Openlayers in my HTML5 iOS app for months now and it worked perfectly. Just recently they changed something because the 'Map data...' line at the bottom looks ...
10
votes
4answers
539 views

Does Google Maps API provide statistical tools or even raster to vector conversion?

I am working with a web developer who is working with Google maps API, trying to determine what pre-processing steps I should perform (e.g. in R and GRASS), and what can be done within the google maps ...
9
votes
3answers
440 views

In what coordinate systems do true circles appear round?

Please excuse what is probably an obvious question from a relative newB to GIS -- this seems like it should be a snap. I've been developing in Gmaps for awhile and am switching to OpenLayers but am ...
8
votes
1answer
405 views

What GIS applications use Google Glass?

From techcrunch. I see a lot of press coverage about Google Glass, yet I haven't seen details of GIS apps that use it. What GIS applications use Google Glass?
7
votes
2answers
6k views

Can I use Google Maps as a layer in Arcmap?

Is it possible?
6
votes
1answer
262 views

Trigger geocoding without having to visit page

I'm using Google's geocoder to store results in database then display them on a map on another page. The problem is that each company profile page needs to be visited before it's geocoded. Is there a ...
5
votes
5answers
345 views

What is the best way to protect data online?

What techniques do people use when protecting data (e.g., preventing a user downloading the whole dataset) they are overlaying on top of Google/Yahoo/Bing etc.?
5
votes
5answers
12k views

How can I view a KMZ on an iPad?

Greetings everyone! So work is finally catching up to the present and buying my group iPads. My group does extensive field work and currently uses giant laptops to run our GIS software, Google Earth ...
5
votes
4answers
4k views

Can you make a travel region polygon with with Google Maps API?

I am working on a local design project and need to determine if someone is local to my area to allow them to participate. Local, as defined by the group, means that the person is within 2 hr driving ...
5
votes
2answers
2k views

Why is there a small white space between tiles in Chrome?

I'm using openlayers to display a google base-map layer and it works fine on Firefox/IE/Safari. I'm having problems with Chrome as the tiles have a small white space between them shown in this image. ...
5
votes
1answer
469 views

Permission rights with google maps

I created an image in QGIS using the Google Maps layer and I would now like to publish this as part of an academic journal article. However, the journal editor has asked if I have permission to use ...
5
votes
2answers
834 views

How to return individual address components (city, state, etc.) from GeoPy geocoder?

I'm using GeoPy to geocode addresses to lat,lng. I would also like to extract the itemized address components (street, city, state, zip) for each address. GeoPy returns a string with the address -- ...
5
votes
1answer
766 views

How do you create a legend for the bucket divisions in a fusion table map?

I am creating a map using Google fusion tables. I have divided the data into "buckets" using the Configure Map Styles window. Is there a way to add a legend to the map telling the readers what the ...
4
votes
3answers
280 views

Differentiating a building from a road on a map?

This question was originally asked here by Steven and I felt the question was better asked here. Steven would also like to know the sources Google buys it maps from. I remember seeing a post about it ...
4
votes
3answers
397 views

Any idea what software abc.net.au is using on the scrolling before/after earthquake aerials?

Japan Earthquake: before and after the copyright says: © Google, Digital Globe, GeoEye Guessing it's something of Google's since Digital Globe and GeoEye are probably only the aerial image's ...
4
votes
2answers
10k 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
275 views

How can I Enable Google Earth 3D features in QGIS?

I want to ask if there is any plugin or any other way where I can use Google Earth features in QGIS. When I'm saying Google Earth features I mean to be able to see roads, towns, etc and to be able to ...
4
votes
2answers
128 views

How to solve loading performance issues when handling multiple KMLs?

I am using over 10 KML in Google Maps. When I increase the number of KMLs they load too late. I use checkboxes to hide/show KML layers. With up to 5 KML layers, it worked fine. When I increase the ...
4
votes
2answers
4k 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
399 views

google earth profile used in mashup or flex

I really like the way google earth profile works, 1. mouse over line, right click, select profile 2. slide the mouse over the created 3d profile an dsee where that is on the map. Has anyone an idea ...
4
votes
1answer
140 views

How can I accurately measure area of polygons using field calculator in qgis?

I have several polygon shapefiles, both set to WGS84 CRS. I have been using the google basemap with the Openlayers plugin, using the mercator CRS. On the fly CRS transformation is enabled. Should ...
4
votes
1answer
1k views

Google fusion tables: Fill in lon/lat columns via geocoded address

I have a list of 100 companies that I want to geocode. I have all of their addresses but none of their lon/lat coordinates. I have three columns related to location: Address Longitude Latitude Is ...
4
votes
2answers
598 views

Can I use google app engine to work as a WMS or some sort of geoserver that I can use to connect openlayers?

Has anybody ever heard or tried doing anything like this?
3
votes
4answers
3k views

Live KML from PostGIS to Google Earth

I was wondering if anyone knew a way to bring data from a postGIS database into Google earth to view live. I know of the asKml function in PostGIS, but I'm interested to know if anyone had managed ...
3
votes
2answers
156 views

Are there any good libraries for visually creating simple Google Maps?

I'm working on a simple webapp that lets the journalists I work with easily construct styled Google maps. In short, I need an interface that lets users place markers, set zoomlevel and choose a ...
3
votes
1answer
187 views

Transit webapp development (journey planner)

I am going to develop a journey planner (like Google transit), i was just wondering that if there any opensource API available that can help me, or i have to do every thing on my own. And where can i ...
3
votes
1answer
331 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 ...
3
votes
1answer
3k 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 ...
3
votes
2answers
755 views

esri google maps api - Create a single GPolyline from an array of features

I'm using the esri google maps extension api... I have a esri.arcgis.gmaps.FeatureSet() (of type esriPolyline) containing an array of features (esri.arcgis.gmaps.Feature()). Is there a simple way ...
3
votes
1answer
958 views

show position on google map/earth, from gps data, using google API

For those that have used google's API for mapping (google maps/earth), I would like to know if is it possible to develop an application to receive NMEA data from a gps receiver, extract position, and ...
3
votes
0answers
91 views

Google earth balloon not fully visible

When i load my KML on google earth, the balloon appears whole but when I embed on a webpage using the embedKML tool, the data in the balloon (In this case a table) appears to be cut. The close button ...
3
votes
0answers
57 views

Can a google calendar go on a map?

Can a google calendar go on a google map? Is there a GeoRSS that can be consumed? Thanks! -mb
2
votes
2answers
241 views

Spherical Mercator projection invented by Google and not conformal?

I had some certitudes on the Google Spherical Mercator also known under EPSG code 900913 and 3857 before looking at this presentation, I was sure that this projection was in the Mercator family (so ...
2
votes
4answers
995 views

Alternatives to Google Maps on Android Phone

Android phone has Google maps as its stock/default Maps, POI and Navigation app. What are other options that i have which can be used instead of Google Maps? One Obvious answer is OSMAnd. OSMAnd has ...
2
votes
2answers
148 views

Difference between Trip and Route in Google Transit

I am developing a transit webapp using Google Transit, while referring to documentation, i see two different datasets (trips.txt and routes.txt) but i can't clarify the difference between them.
2
votes
3answers
1k views

how to extract lat long from WKT data?

i want to extract lat long form WKT data and stores into arary list i have tried one solution which is proposed by a user but it has some problems String str = tv.getText().toString(); str = ...
2
votes
2answers
2k 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 ...
2
votes
1answer
130 views

When was the Google Earth API launched?

Do you know the date when google launched that API: https://developers.google.com/earth/
2
votes
2answers
2k views

Retrieving Google Map data into Matlab to plot points

First of all, I hope this question isn't too basic, obvious or inappropriate for this forum. I'm very new to using map data. I'm working on a project on more accurate map routing using Matlab. My ...
2
votes
3answers
5k views

Google Maps/Google Earth - KML Overlays and Custom Orientation

I am am trying to get the floor plans for our various buildings imported into 4 separate KML files, one for each floor level so that I can toggle them with javascript. I'm able to overlay our floor ...
2
votes
2answers
2k views

Google Maps JS API v3 - Polygon formation

So my big question here is how does the Google Maps API determine the "inner" versus the "outer" for a filled polygon? Playing around with the polygon creator @ http://www.the-di-lab.com/polygon/ ...
2
votes
1answer
676 views

qgis, autocad and google layers

Ive downloaded qgis and loaded the google layers plugin. I have imported a dxf cad drawing. Question is how do i place the shapefile in the correct place on the map? Also how do i tell google ...
2
votes
1answer
962 views

Google Earth land features importing to ArcMAP

I'm wanting to import land features, such as lakes, reservoirs and other land-made features onto my ArcMAP. Is that possible as this is new with my client wanting this done. What needs to be done as ...
2
votes
1answer
979 views

Google maps API charset for http request ?? Geocoding Requests

im sending the following request to maps api but receiving the json response with chars problem. Can some one point me in the right direction to set charset correctly ? Request -- ...
2
votes
1answer
149 views

Export directions from Google to KML?

I used Google to draw directions from one location to another location, but can't find a way to export it as KML so I can import it into my Android smartphone. Is there a way, or must directions be ...
2
votes
1answer
102 views

Openlayer map not loading

Just another OpenLayers problem Plugin is installed correctly but when I add a layer I get following message. (CRS is on Pseudo mercator) Can anyone help me out? An error has occurred while ...
2
votes
1answer
435 views

Incorporate Google Streetview into a Leaflet map

The person who asked the question at the link below way back in 2011 said, "I understand that it is possible to incorporate Google StreetView into non-Google apps". Can anyone tell me how this is ...
2
votes
1answer
715 views

Google Map API Drag event..?

The below code is working perfectly on click event to retrieve Lat/Long and Current Zoom level. How do I get the same when I hover mouse/drag on map Window (not on submit button)? <!DOCTYPE ...