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

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160 views

Google bathymetry service with OpenLayers Mouse Position

After searching for some days I decided to post this question here, hope someone else can give me some hints about a doubt I have. The thing is that I would like to use the Google Bathymetry Service ...
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3answers
199 views

offline google map on android

If I go to abroad as a tourist BEFORE I collect the visiting places on my google maps then export it to kml. In abroad I don't use mobile internet on the street (very expensive) but I would like to ...
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64 views

How to create non-overlapping polygons from points or lines in Google Maps?

The picture describes the problem. I'm supposing I need a tree search algorithm that enumarates all the points and connecting lines in a tree structure and then searches for cycles. But this job is ...
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3answers
334 views

Ways to extract DEM for urban areas using Google Maps?

Is Google maps' elevation API suitable to obtain the high resolution elevation data for areas that have 3D building such as Manhattan? Would the API for example yield a significant different value on ...
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1answer
29 views

Is there a way to overlay a remote kmz file in google maps

I have a kmz file and want to overlay it on google maps. What I'm searching for is sth. like: https://www.google.de/maps?kmz=server/tour.kmz I've already checked the query params for google maps, but ...
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1answer
81 views

Save KMZ or KML from google maps

How to save to KML or KML file using google maps. I can't find menu command like that. I'm working on China region.
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1answer
38 views

Supposing Google uses GTFS format for Directions service, how does it represent the actual bus route?

So I am actually taking a look right now at Google's GTFS format for public means of transport. But from my point of view, I can see information included about the position of the bus stops and some ...
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1answer
103 views

DLS Grid for Province Alberta (Canada)

I have DLS grid data that I downloaded from http://www.altalis.com/products/property/ats.html (AltaLIS_ATS_V4.1_Coordinates data). But I don't know how to draw the grid on Google Maps. We have ...
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1answer
96 views

Google Earth Image Offset?

My lat/long points have an offset (2-3 meters) in both X and Y - about 2m SE in my region (-120.644,35.260) - from where the points used to be (unless my memory is failing.) I'm using Google Earth ...
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1answer
216 views

Google maps to gpx

I have taravel map created in google maps. Now I need to save way points in GPX format to make them available for my GPS Osmand application. How to solve this problem?
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1answer
68 views

Postgis ST_Distance query returning inaccurate results

I am using the following query to retrieve records from a postgresql DB @services = Service.select("*, ST_Distance(services.lon_lat, ST_GeomFromText('POINT (lat lon)', 4326)) as ...
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31 views

Trying to change the transparency of a KML file for use with Google Map Maker

I've been stuck with this problem for quite some time. I'm doing a project which includes updating the Google Maps for my area. I know that I have to use Map Maker to do this. However I'm trying to ...
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28 views

Get next point horizontally and vertically

I am working on a map application. We have to draw polygons for different sections. Each section is either a square or a rectangle. Data that I have has less than 4 coordinate points, insufficient to ...
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0answers
75 views

How/Where to get reverse geocodes up to 5 decimal points precision for offline use?

I would like to have a simple text file(s) with following reverse geo-codes information for all the countries (i.e. world): Coordinates -- Address e.g. 12.96779, 77.65306 -- #7, Jeevan Bima ...
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0answers
40 views

Street maps with php and mysql

I am trying to create a website that can show how much the houses in the area are worth. I am able to get gis data, but not exactly sure what to do with it or what exactly is needed. I am extremely ...
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23 views

Embed Google Fusion Table Map without setting it as public

I would like to make use of Google Fusion Tables and Maps to visualize sales data. The map will eventually be embedded into a webpage so that senior management can access it for decision making ...
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220 views

How to draw small circles within a big circle(greater radius) on the basis of marker size on google maps?

I have more than 1000 markers at different location in my Map. I read Lat and Long from a xml file and render it in Google maps and create circle over them on the basis of city name within given ...
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2answers
62 views

SRID is messed up when google-maps layer is added

I've some problems with using a PostGIS layer within QGIS. First of all, I had this same problem on both QGIS 2.4.0 and 2.6.1 I cannot display the Google Maps layer AND my PostGIS layer together. ...
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1answer
49 views

Hierarchy for Google maps and OpenStreetMaps [closed]

i am wondering about the hierarchy that have been used inside the Google maps and open street maps.. what kind of hierarchy was impeded inside of them ??? if a curious man like me would like to ...
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0answers
52 views

Is geoxml3 slow when parsing large kml files?

I have 10 kml files of 10 global regions (Western Europe, North America etc etc), which I add simultaneously as overlays (Kml Layers) using the Google Maps API. This works. I'd quite like to make ...
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0answers
85 views

Is there a way to create a custom, navigable GPS route?

Is there some sort of way to create a custom GPS route that can say, be plugged into a maps app like Google or Apple maps? For instance let's say I created a route that is a drive along Pacific ...
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1answer
48 views

How to align ASTER GDEM with Google Maps?

I'm using ASTER GDEM V2 to pick heights at lon-lat coordinates obtained from Google Maps but I found that at some locations - particularly San Francisco: https://goo.gl/maps/w7p1K - the DEM seem to be ...
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25 views

What are the rectangular black markers shown in the roads of Google maps?

I'm doing some image processing to quantify the connectivity of London's roads. I'm not a geographer or map-expert and I would like to know what are the black rectangular nodes/markers in this map. ...
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2answers
188 views

Plot Canadian (Alberta Province) township, range, and section data on Google Maps

We are working on a project where we need to plot some part of Canada (Alberta) over Google Maps. We can plot maps on Google with coordinates (lat/long) or geometry values. But our client provided us ...
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0answers
64 views

Raster overlay with different projection in Google Maps

I have a map created with Google Maps. I want to overlay over some data I am downloading dynamically, covering the whole world. That data is a matrix as follows: 1024 values for the longitude ...
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0answers
21 views

How can I set the default to maximise the layer box on an embedded Googlemap iframe?

I've a series of pins across a variety of topics that I would like shown when the iframe is viewed. I want the layers turned off by default (done at the source end i believe) but I need the iframe ...
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0answers
76 views

Working with Google Maps Android API v2 and WKB

I have a service which returns a list of routes (geometrycollection of linestrings) in WKB format. I want to display the routes on the google maps android api. What's the right way to achieve that? ...
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0answers
60 views

Add QGIS raster layer to Google Maps API

Is it possible to add a hosted QGIS Raster layer into a Google Map? Thanks.
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40 views

Bulk Converting Ordnance Survey to Google Map lat lng

Apologies if this is a simplistic question, I am learning! I am attempting to use pyproj with Python. The coordinates I wish to convert came from the Ordnance Survey Integrated Transport Layer. I ...
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0answers
38 views

OpenLayers+google maps slow map

I'm using google maps +openlayers to display live tracking of gps devices to a web client .I'm using JSF+Spring+hibernate on the server-side . My problem is that the map is slowly rendered and I need ...
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0answers
32 views

Google Maps Data

Is it possible to obtain a dataset of all search results in a google maps search? For example: if I want a list of all gas stations in Chicago, complete with addresses, store name, latitude-longitude ...
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0answers
76 views

Live routing with instructions is show in a windows info if click in road

I have make a web application , the application have in a server a database in Postgresql with a table roads , i have make a php with pgRoutong query , in the web site the user give two points , or ...
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1answer
63 views

CartoDB / ArcGIS online map to show roadworks in a city

I want to create a map that shows roadworks based on start and end time in the City of Aarhus (second largest city in Denmark) using CartoDB (or ArcGIS online) similar to http://roadworks.org/ - I ...
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24 views

What is the correct way to show 10000 maps/tiles on my contact address list web page?

I have a webpage with a grid of contact list (around 10K people). I want to put in one of the columns a small map/tile of the address from a different column. Do I need to generate 10k maps object and ...
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0answers
53 views

Accessing Time-Enabled Layer/adding time slider to webmap using google maps as basemap

I have the wireframe that I need for my webmap along with the arcgis map service layers (with time enabled data). I want to have two map divs with two time sliders that use the same service layer in ...
2
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0answers
47 views

Stretching of geometry when rasterizing vector data on Google Maps

I'll start with a quick backstory on what I am trying to achieve. I'm working on an offline Android GIS tool and people are throwing giant datasets at it. It converts these into Google features (V2) ...
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1answer
99 views

Displaying postgis database data

I'm a beginner in this field and tried to display the postgis database data in localhost.But i used select query in my code .so the table got displayed.I want to display the geographical points in a ...
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0answers
108 views

Scaling Images with OpenLayers

I have the same image (exactly the same dimensions) in Google Maps as in OpenStreetMap, but the scaling of the image in OSM is totally different. The scaling in Google Maps is after my opinion the ...
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0answers
51 views

How to show hierarchical clusters in google maps or other tool?

Google maps marker can be clustered but those clusters expand on different levels. I want to stay on a specific zoom level and cluster a set of markers. Then I want to show sub clusters inside that ...
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0answers
68 views

Google Maps measure time to render markers

I want to measure how much time it takes to render markers on my map. I have a vector layer with data, like this: var vectorLayer = new google.maps.Data({map: map}); // add features to vectorLayer ...
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1answer
269 views

How to store Google Maps DrawingManager Rectangle overlay in PostgreSQL Postgis GEOMETRY(GEOMETRY, 4326)

What is the correct way to store a Google Maps DrawingManager rectangle overlay? The API basically provides me with NE & SW lat/long coordinates. Should I use BOX()? Is it possible to create a ...
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1answer
59 views

Offline map with less zoom size and maximum area covered

I am developing a mobile app for which an offline map is required. Is it possible to have such map within few 10s of MBs? The requirement is to have: Map with smaller zoom size; e.g. In this URL of ...
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1answer
49 views

Plotting a list of towns in google maps or CartoDB

is there a way to plot a big (700) list of towns on google maps. I don't have any geographic reference, just their names in a .csv file. I've tried uploading using their help pages but it just seems ...
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0answers
38 views

uk postcode outcode border data

I am aware of this: First character boundaries However, this only gives you the borders for, for example, 'L' rather than: L1, L10, L11, L12 etc. Can I obtain these fine grained border data from ...
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0answers
33 views

extract lake outline in google maps

I have some bathymetric data for a lake, shown here in google maps: ...
2
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2answers
458 views

QGIS exporting attributes in a KML file

Here is what I am doing: Create a layer by uploading a shape file into QGIS Select Attributes of that file Export selected attributes with the "save only selected features" check box when I save the ...
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0answers
95 views

In draw path moving a icon

I try to make a path in route using a pgrouting from table with roads and after how i move in this path an icon(marker) and show info for example the name of road wich is on the icon or the addres? Is ...
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2answers
219 views

Geocoding accuracy of Google Maps vs Tiger

I recently compared result of US Census Geocoder(http://geocoding.geo.census.gov/geocoder/) with that of Google Maps. For any given address both of them are giving different set of lat, lon. Why there ...
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1answer
195 views

Google Hybrid Map tiles won't load in OpenLayers when centered on certain position

Since the Google Maps API update to V3.2 (17 Feb 2015) our maps have not been loading to their initial state, centered over the Gulf of Mexico. When the center location is: center: new ...
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1answer
80 views

Downloading data from Google maps-based apps

Is there any way to download customer’s data in Google maps based app? Like the polygons in this map - http://tromso-parkering.no/parkering/kartoversikt/.