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

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1answer
135 views

Working out street view heading

I was wondering if it is possible to work out a POV heading for street view based on a GPS coordinate? For instance, say I have the coordinate '43.6653055692 -79.3102166453' If I plugin the ...
2
votes
3answers
162 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 ...
12
votes
1answer
9k views

Which is correct projection in ArcGIS Server for EPSG:3857/900913?

I want to publish a mapservice in ArcGIS server, which will be overlayed on Google Maps or Bing Maps. For this, the Map Service needs to be in EPSG:3857/900913. The Google Maps projection is supposed ...
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2answers
289 views

How to Represent large data using google map api in javascript

1) I am trying to represent data using bins as the data was too large to display each and every point simultaneously. but the problem with this also existing if the no of bins are getting larger ...
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0answers
15 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 ...
1
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1answer
1k views

Plotting Multiple Points on Google Map using VB.net

I am creating a database application using VB.net and MSSQL 2012. I have retrieved a list of customer from the database and want to plot them on google map. At it stands, I can only plot the first ...
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0answers
10 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: ...
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1answer
689 views

Unable to put data into infowindow

I've followed this tutorial to create a custom Google Map. I've included a few other elements such as linking it up to Wordpress and clustering the markers. It's all working great apart from the info ...
0
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1answer
19 views

How to open a popup on Marker click when Markers are in array using leaflet maps

Hey guys I have a set of Markers that are getting created dynamically on a .each loops like so. $.each(data, function(index, element) { markerArr[element.id] = ...
4
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2answers
737 views

Outline a plot of land on a map

A client has a very old Certificate of Ownership document for a plot of land. We need to show the outline of the plot on Google maps to potential developers. Sadly the description of the plot is in ...
10
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6answers
14k views

How to Geocode 300,000 addresses on the fly?

I have a database which has 300,000 address, which are to be shown on map. I know if I geo-code all the address it will be too expensive for me. So I was wondering if it is possible to geo-code the ...
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0answers
14 views

SetTimeout on gmap3

I have a small problem, I want to setTimeout on the geocode as the limit is 11 markers and I have 13 to display, I have tried wrapping different parts of the geocode in a setTimeout but cannot get it ...
1
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1answer
149 views

How to get boundaries of city?

is there any api to get bounds of city. What i want is i give city name and in return i get that city boundaries. I have searched google maps, arcgis and OpenStreetMap but didnt found any ...
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0answers
18 views

How to use KML files with PhotoOverlay in Google Street View?

I have KML files containing PhotoOverlay and a lot of corresponding jpg files (tiled image pyramids). I would like to use them in Google Maps / Google Street View so that these panoramas can be ...
1
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0answers
71 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 ...
3
votes
1answer
4k views

How to highlight multiple cities/towns in Google Maps?

I'm trying to create a service area map in Google Maps. When one searches for a city or town, Google outlines the town in a light red. If possible, I'd like to have multiple towns selected in this ...
0
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2answers
3k views

How to create styled markers with custom marker tooltip

How to create custom markers and when mouseover on marker i need a tooltip can any one suggest me how to do these type of markers...i need markers like below image Thanks in advance
1
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2answers
295 views

render geotiff tiles as a map layer

i have the following problem: i have downloaded tiff files with gMapMaker and transformed them to GeoTiff using the associated .map files in QGIS. now i want to render these GeoTiff files to use them ...
0
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2answers
111 views

Zipcode to Polygon/Boundry

Is there any API out there which can give me Polygon value for a zipcode? I really thought that it would be fairly easy for me given the number of Maps APIs out there. Either Google Maps API or ...
1
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1answer
48 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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1answer
336 views

CartoDB data not displaying on Google basemap

I'm new to CartoDB but hoping to use it to display various types of real estate data on my website. That said I've been playing around with some of the sample code (Google Maps V3 integration example ...
9
votes
2answers
1k views

Why does one part of GML -> KML conversion not work on Google Maps?

Brand new to all of this, not even sure this is the right forum to ask in... I have a client who wants to visualise cancer incidence and mortality rates by local/unitary authority across Great ...
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vote
2answers
161 views

Finding the latitude/longitude that is in the middle of 2 others?

Ok, so I will have a system/application that will always at the most have 2 points (latitude/longitude) on a map per street. So if the user wants to add another point on that street I want my app to ...
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2answers
4k views

Given city and state, how to get the nearest zip code in US

We have a situation where user enters a city, state for which we need to find a corresponding zip code. In case there is no corresponding zip code, we are required to find a zip code that close to the ...
0
votes
1answer
156 views

40k+ points from Shapefile, clustering them and populating on Google Maps/Webapp

I just started a new Python/Django webapp job related to GIS (and i'm totally new to GIS). Here is my task and what i have found so far, and i am stuck as to finding out what's the best way or the ...
2
votes
1answer
177 views

Does merging segments in Google Map Maker ever work?

When editing line segments in Google Map Maker, the number of crossings one needs to touch for a change is pretty relevant. From my experience, every move of a crossing needs to be reviewed, so the ...
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0answers
31 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 ...
0
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1answer
407 views

Transit Option not working in Google Maps

I have a requirement to create an application which would show public transport routes between a source and a destination which i acheived it successfully. But i found that the transit routes does not ...
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1answer
125 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 ...
1
vote
1answer
243 views

How to calculate degrees per pixel in a given image? Or .nth of degree?

I am trying to make very rough estimates of Lat/Long coordinates in some random parking lot images. If I visit any such random parking lot on a Google map, I can click some driving area and Google ...
5
votes
3answers
817 views

How to calculate a new bounding box that is 80% of the actual bounding box returned by google map?

I need to show a marker for each user that falls within the visible portion of google map. To do so, I get the bounding box from google map, and send it down to the database and I receive a list of ...
3
votes
2answers
1k views

Any way to view/create/edit Google My Maps KML files on Android?

I have two large (several hundred features) maps created by Google My Maps that I use for my field research. They contain important information required by the field crew for their work on site. ...
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0answers
45 views

Condensing sparse geocodes to weighted Geo-Circles?

I have a dataset comprising 3 million records having latitude and longitude information associated with them. I want to condense it to form few thousands Geo-Circles, with radius and weight depending ...
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1answer
2k views

Order of KML Layers in Google Maps API V3

I'm working on a website that when finished will allow the user to turn on and off a number of different KML layers using checkboxes, the layers are parsed through geoXML3 and I want to know how to ...
1
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1answer
777 views

WMS-C Google Maps v2 Android

I'm have added a map from a WMS-server in Google Maps v2 for Android using the code provided from this site: http://www.azavea.com/blogs/labs/2013/01/wms-on-android/ . The tiles are downloaded and ...
2
votes
2answers
4k views

How to display a geotiff-image with OpenLayers at the “right place”?

I'm just starting with OpenLayers. I have a georeferenced geotiff and the associated world file. Now I want to display this image as an Overlay and google-maps as baselayer with OpenLayers. Would be ...
2
votes
1answer
159 views

Make Google Analytics city data showed on the Google map

I use the Google fusion table to table to mark city on google map, but there are about 20~25% which quality is ambiguous. How to make the ambiguous data precise? Here is my finished map (scroll down ...
1
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3answers
73 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 ...
2
votes
1answer
171 views

How to get a GML overlay on Google Maps?

Anyone know how to get a GML file to show as an overlay on Google Maps? To be honest I don't know my GML from my KML, or my ETRS89 from my WGS84, as this topic is completely new to me. A bit of ...
7
votes
3answers
4k views

Leaflet / Google Map baselayer / markers not visible

New to Leaflet, currently trying to migrate a project from native Google Maps to Leaflet; having been drawn to Leaflet by the layer management and options of using better 'roadmap' style basemaps. ...
0
votes
1answer
218 views

How do i integrate Clustering into my Google Map?

How do i integrate clustering for my google map? I have found a few codes but i'm not sure how to combine both so that it won't mess up the whole site. This is my current code: <script ...
0
votes
1answer
384 views

How to make coordinates match between Google Maps and matplotlib.basemap

I'm trying to plot some data with matplotlib and basemap, but I have trouble making the coordinates match between Google Maps and basemap. For example, I click at a distinctive feature on the map in ...
1
vote
1answer
36 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 ...
0
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0answers
37 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 ...
1
vote
1answer
189 views

Is it possible to draw polygons along Google Maps Polyline?

Web application has option that user draws polyline on Google Map. After he draws it, there is a button 'Add polygons', which should draw polygons along that line, based on some width and height in ...
0
votes
0answers
18 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 ...
1
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1answer
947 views

Import TomTom OV2 into Google Maps as My Place Stars

Is there anyway to import my TomTom POVs (saved in an OV2 file) into my google maps account as favorites? i.e. My Places > Starred. I appreciate this may involve converting the OV2 into something ...
0
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0answers
12 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 ...
0
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1answer
51 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.
0
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1answer
57 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 ...