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

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186 views

How to customize heatmap color on pre decided constraint values?

I am working on heatmap and situation is i have to change the color of heat map marker on the basis of some constraints and the color should change according to those basic constraints values. My ...
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185 views

How to update kml file/layer dynamically?

I am using a kml file for displaying map with custom boundary lines. That kml file is downloaded from some website. In that file, inside the placemark tag there is no point tag for display icons. Eg: ...
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31 views

x and y coordinates will only display [x],[y] when field calculator is used to make a url

The standard formula for a google maps url is: https://www.google.com/maps/@-15.623037,18.388672,8z https://www.google.com/maps/@(latitude),(longitude),(zoom level)z I am trying to make a new ...
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0answers
287 views

Polyline changes into polygon in google map drawing tool

I have been using google map provided tools where it can draw the polygon and polyline accordingly. I will first click on the polyline icon and start plotting and suddenly when I double click it turn ...
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44 views

Is it possible to find Lat,Long coordinates of points within a polygon whose GPS coordinates is known [duplicate]

I have a set of gps coordinates which make up a polygon. Is it possible to find Latitude,Longitude coordinates of points within this polygon using GPS coordinates of the polygon I already possess. ...
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897 views

Display google map with boundary lines for each address

I am working on Google MAP API integration and I have tried to display the map with boundary lines for each address, such as Zillow.com. Eg: http://www.zillow.com/homes/for_sale/priced_sort/25.945776,...
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100 views

How to get indoor directions by using Google API

I have a problem using Google Direction API to get the route between two points(One point is outside the building and the other is inside the building). When I use API to get the directions, only the ...
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1answer
204 views

Google Maps directions link doesnt work properly in the Explorer for ArcGIS mobile app?

I have an AGOL web map for finding beach accesses in Florida. Within my pop-up I have a Google maps link to get directions to the current access. Everything works fine on desktop, but the directions ...
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1answer
619 views

How can I geocode American rural routes and box numbers?

I am working on a project where users fill out an online form with address information and a Google Map centered at that address is displayed. It works fine for traditional addresses (e.g. 123 Main ...
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53 views

How can I show a trip on a map, color-coded by how long the trip actually took?

I have a series of origin and destination addresses in a spreadsheet, with start times and arrival times for each. I'd like to plot them on a map, with a line between each origin and destination, ...
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159 views

Length of a long distance GPS track

I have a list of GPS points logged by a vehicle and I'd like to find out the length of the logged route. The problem is that the vehicle logs only every 10 minutes, so I don't have too many points to ...
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1answer
1k views

Google maps not displaying until zoom in/out using openlayes2

I am using openlayers 2 for map displaying using following code, map = new OpenLayers.Map("mapDiv"); map.addLayer(new OpenLayers.Layer.Google("Google Streets",{numZoomLevels: 20})); map....
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1answer
2k views

Arcbrutile and Arcgis 10.3

i want to use Google Maps with Arcgis 10.3 , after Some Search i Found (Arcbrutile 0.2), so i downloaded Arcbrutile 0.2 and install it, then when i continue to register it using Esriregasm.exe i ...
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2answers
366 views

How are section of roads uniquely identified (in both directions) by Google Maps?

I am wondering whether roads around the world are uniquely identified by a certain value in Google Maps? If so, are they mapped uniquely in terms of their direction? i.e is route A to B is identified ...
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45 views

Car Pooling Algorithm?

I was thinking about a Car Pooling System in Hong Kong where users can post their routes and we can match them based on the diversion , Shortest or fastest path. Is it possible to have Google Maps ...
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1answer
111 views

Two layers have different zoom level

I have added to my OpenLayers-based app two layers. A google maps layer and another WMS layer. physical = new OpenLayers.Layer.Google( "Physical View", {type: google.maps....
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0answers
421 views

Why Haversine formula and Web Mercator give different length between two latlng points?

I am calculating the distance between two points given by latlng. However, Google Maps (i.e., web mercator projection) gives me a longer distance than Haversine formula. Which is the most accurate ...
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1answer
204 views

Google Maps base map definition

I need to replace a 'Global Imagery' basemap in Google Maps. However if I replace it with "Openlayers.Layer.Google", that would use map projection of EPSG:3857 (900913). But I'm working with EPSG: ...
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207 views

GEO polygon tool to extract data from map

I am developing a media portal and trying to define the circulation / broadcast area for the media (newspapers/magazines/radio/television) and extract states/cities/towns within the defined area to ...
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1answer
256 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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2answers
649 views

How to create/obtain district data for Singapore? [closed]

I am newbie in GIS and have started using QGIS. I am hoping to map all districts of Singapore and create a Shapefile and get GeoJSON details for all districts. I am not able to find that currently. ...
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3answers
713 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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166 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 ...
2
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3answers
2k 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
59 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
193 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
105 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
874 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
238 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 7.1....
2
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1answer
432 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
172 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 st_distance").order("...
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36 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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140 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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36 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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826 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
102 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
117 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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1answer
89 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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0answers
36 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. ...
3
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3answers
759 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
109 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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139 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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0answers
73 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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46 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
81 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 ...
0
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1answer
93 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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30 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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152 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
130 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
269 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 ...