An application programming interface specific to Google Maps.

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7
votes
5answers
31k views

Creating drive time polygon around map point? [closed]

I'd like to create a 30 min drive time polygon around 400 separate points I have plotted to google maps. I have discovered http://www.freemaptools.com/how-far-can-i-travel.htm but this seems to freak ...
9
votes
1answer
2k views

Grouping map points into fixed cluster sizes?

I have a dataset of 655 lat/long pairs which I'd like to split into about 100 groups. A group should have 5-10 pairs which are geographically close to each other. Dense groups should have more ...
5
votes
1answer
3k views

How to calculate polygon area considering slopes?

I am looking for an accurate algorithm or a service to calculate surface area on earth where points are calculated on the basis of GPS Coordinates. I am using Google Map Api version 3 and are drawing ...
-2
votes
1answer
96 views

How to Draw/plot or identify in GoogleMaps with below PointData

How to Draw/plot or identify in GoogleMaps with below PointData? Below are the points generated from spatial cadastre software. PointName Xpos Ypos _1 341.0926 527.9615 _10 669.1454 527....
1
vote
1answer
1k views

OpenLayers & Google Maps: TERRAIN not showing as baseMap

I have a problem with OpenLayers and Google maps: on this page: http://46.37.22.75:8085/public/ I'm loading Google maps TERRAIN with Openlayers.js, everything worked well for about 1 year, but now ...
9
votes
1answer
6k views

Corner coordinates of Google static map tile

How to calculate the corner coordinates (bounding box) of a static Google Map image, fetched with e.g. http://maps.googleapis.com/maps/api/staticmap?center=40.714728,-73.998672&zoom=12&size=...
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 ...
3
votes
2answers
4k views

Downloading Google Maps municipal geometry

When searching for a city on google maps, google is that smart it displays a geometry line on the boundary off the municipal. See this link: http://g.co/maps/23dz5 Is there a place in the google maps ...
3
votes
1answer
707 views

KML with Google Maps : Google violates same origin policy?

Doesn’t Google Violate the same origin policy when it tries to access the KML files from a globally accessible server? The condition for Google maps to display the KML is that it should be globally ...
1
vote
1answer
1k views

GeoReference tiff image into the Google map?

I want to Geo-reference a tiff image contain a Map for a specific region, I need to add this region(image) and Geo-reference it on the Google map, SO I can see on the map for the region I select the ...
3
votes
1answer
494 views

How to implement Google Map to WordPress site?

I need to add Google Map with about 400 markers into WordPress site (into one page). Every marker needs to have info window with photo, description and link. It is really high number of markers, so I'...
3
votes
2answers
425 views

Generating random points on a route

I am trying to generate random points on a route from one point to another. What I have till now is, given a source and a destination, I can get a route using Google's API. But how do I get the ...
3
votes
2answers
2k views

Can I use Google Maps API and substitute Openstreet map as base layer?

This Question is based on below requirements. 1 - our application will need to use functionalities of Google Maps API like custom marker/Info pop up/Routing etc. 2 - our application wants to use ...
2
votes
1answer
1k views

QGIS Google Maps Coordinate System

I have some Points in Shapefile with BC Albers Coordinate Syetem and I need to Project them to Google Maps Lat and Long. I tried to do this by using WGS 84 / Pseudo Mercator EPSG: 3857 and ...
2
votes
1answer
2k views

How to obtain to Max zoom levels for Google layer using Open layers

I was trying to obtain maximum zoom level ( level 22) for Google street map using Openlayers.layer.google script. The following code does not seem to work.It works to the maximum zoom level when Var ...
2
votes
1answer
304 views

Ordering Cartodb torque visualization over Google Maps heatmap layer

I am attempting to create a map with two layers: a CartoDB Torque visualization on top and a Google heatmap layer underneath. So far I have only been able to get them to draw in the opposite order I'...
2
votes
1answer
9k views

How accurate is the google maps latitude and longitude I am using?

I am making a program that uses GPS location preferably from smart phone, laptop works too and compares it to a building, the points you in its general direction. I am making this web application ...
1
vote
1answer
36 views

Reading terrain data from Google?

Am I missing something or is it not possible to read terrain data (such as forests, roads, rivers, lakes, etc) through google? I'm trying to create an app where you can walk in a scene dynamically ...
0
votes
0answers
49 views

Which software for mapping connection intensity between locations

The idea is to map the connection intensity (number of rides) between different locations, and groups of locations, in a bike sharing scheme. I wondered if someone could give me high level advice ...
0
votes
1answer
310 views

How to set the zIndex of the CartoDB.js layer on top of Google Map's GroundOverlay?

I am trying to combine the Google Maps API Ground Overlay example with CartoDB.js example using Google Maps. It appears both APIs are displaying their layers correctly. However, the ground overlay ...
0
votes
2answers
1k views

GIS Web API - WFS-T Edit

My organization has a asset management application using Google Maps Java API as the GIS viewer. The application does some simple editing/querying on a kml file through html form elements. Instead ...
0
votes
1answer
272 views

Leaflet : How to update polyline ? Live Tracking

var ColorVar = '#bd0026'; var firstpolyline = new L.Polyline(polyList, { color:ColorVar, weight: 8, opacity:0.8, smoothFactor: 1 } ); ...