Geolocation is a means to discovering the physical location (in real-world geographic terms) of an object.

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23 views

Create multiple data points within a country [on hold]

Using simple wizard I want to create multiple data points associated with one set of longitude and latitude (for one country) i.e. France or any country. Although I have two rows associated with ...
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1answer
864 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 ...
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1answer
42 views

Free API or database for Continent, country, city, region/state?

Is there a database or API that can provide: Continent, country, city and region/state? It should also have the country codes in ISO format. It would also be great if if could all be in one file for ...
2
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4answers
99 views

How do some companies receive GPS data from vehicles if GPS's can't send any data?

I know that some companies offer tracking services for vehicles such as live GPS tracking they can access any time, but as you can't use the GPS protocol to send any data i wonder how the do it... I ...
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1answer
26 views

Where can I find a list with beaches which include coordinates?

I use World Weather Online marine API to get wave height of different beaches. This API provide data by coordinates and I need a list with coordinates of beaches.
1
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0answers
33 views

Using Python-Flask-MongoDB with Geolocation field running on App Engine?

I'm trying to write an app which would act as a address caching API, so basically it needs to store addresses (geolocations) and later on I could query on a random address and radius and get all the ...
1
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1answer
17 views

Where can I find tower information

I want to find geolocation with GSM Cell information. The device I have can be able to send this data to me. Anyway, I need tower information to find locations and calculate triangulation. I tried ...
3
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0answers
60 views

How to get the best GPS position Geolocation API

I want to get the most accurate position of my mobile phone with android. I'm comparing accuracy value in 2 seconds interval and if value is less than last value I'm trying to keep the position in ...
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0answers
18 views

How can I ask for location and display it on map on my website? [closed]

I have added a map to my website. Now I want to add a feature to it wherein when a user clicks on the add event button on the header a popup should appear which ask for event name and location and as ...
8
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3answers
2k views

Seeking GPS device for vehicle tracking?

I am a programmer with no connection to Geographic information, except that I work on application which uses Google Maps. I need some device, which I will be able to set in a vehicle in order to keep ...
0
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0answers
25 views

Points within a circle in Python - geoindex

I'm trying to use the geoindex package to perform a nearest neighbor query. For example, I have this two coordinates (in the real case I have a lot more): (40.607255, -73.75083) (40.7261465 ...
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0answers
44 views

Triangulation of Cell Towers using MSQL Server Spatial

I need to triangulate a GSM Device by using known cell towers locations and GSM readings. All Data is in a MS SQL Server as Geometry Types. herewith an example of the data : here is also a SQL ...
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2answers
108 views

How to display geotagged photos in leaflet

There is awsome plugin of displaying geotagged photos in leaflet Photos on leaflet I used the picasa photos implimentation when I implemented the plugin for my picasa public album photos link in ...
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1answer
3k views

offline map tiles in standalone desktop app

Which mapping API can be used (either in a C# desktop app or as a standalone mapping app) that accesses an offline tile collection and requires only a minimal amount of additional servers / other ...
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2answers
53 views

Generating random points near a location [closed]

In the following solution, why is there a sqrt(u)? Since u is just a random number in [0, 1) doesn't getting the sqrt just give you another smaller random number? To generate points uniformly, ...
4
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1answer
211 views

extracting geographic location from NOAA NARR grib

I've downloaded a NOAA NARR grib file that I want to extract the wind component as well as the geographic location. I'm able to extract the wind component from the grib but I can't seem to find any ...
2
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0answers
64 views

how to transfer GPS device coordinates into mobile android app?

i'm trying to make an android app that collects data field in high accuracy, since the phone native GNSS doesn't provide highly accurate coordinates, i want to use Coordinates provided by a real GNSS ...
3
votes
1answer
68 views

QGIS geolocate a csv (insert point for each record manually in map)

I have a CSV with data (no location, no lat/long). I need to load that CSV into QGIS and create a point for each feature. I've trying for an hour without success.. I guess there must be a way to ...
0
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1answer
64 views

Geolocation is not working on my mobile device (USER DENIED GEOLOCATION) - Openlayers 3

I have the Openlayers 3 Geolocation API working on non-mobile browser correctly, but I get 'User Denied Geolocation' error testing on mobile devices. What could be the reasons of this error? If it ...
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1answer
69 views

Openlayers 3 - click under geolocation layer

I am using geolocation feature of Openlayers 3.13, as in the examples. (http://openlayers.org/en/v3.13.0/examples/geolocation.html) However I also have queryable point layers, and when I track the ...
4
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1answer
23 views

Using Gazetteers to mine locations from text

I am starting to work with Gazetteers and trying to find something that will actually "mine" geospatial locations from sets of text. Academically, this is a difficult task as texts are based on ...
0
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1answer
303 views

Which geo-location available in Twitter data should I use?

I am extracting twitter location on my side.Few tweets has perfect location but in most cases additional details are available (i.e. Country,bounding_box,poly lines etc) So confused regarding ...
0
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1answer
34 views

Searching by location

I need an advice for a service. On our website we have a search for events. Users are especially interested in the location of event so they use that filter a lot but the problem is that in our ...
2
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1answer
50 views

Does this DXF file contain geolocation data?

I'm new to autocad and have been sent a file with polylines which I need to plot on a map. However I cannot see that the file contains any geolocation data to plot it accurately. The GeoLocation tab ...
0
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1answer
43 views

Keep only the last marker when geolocating

I'm working with OpenLayers 2 and I managed to create a javascript to locate the users and it works fine. I added a marker representing the current location and when the position change, it creates a ...
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0answers
22 views

Does any maps/directions service provide location caching on server?

I want to store some user's tracked location data on service server and take it later. Something like courier's last location.
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0answers
66 views

Wrong location with result of VBscripting in ModelBuilder?

I run ModelBuilder program's VBScript. The results I receive is like the original input coordinates but when I export to the arcmap the distance between results and origin map is about 5000 km. How ...
2
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1answer
257 views

Calculate road distance between GPS points

I am working on tracking system that track location of vehicles on the map and tell their total distance from the beginning till today. I have device_id, timestamp and GPS location in the table like ...
3
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2answers
123 views

Move leaflet polygon to given position

I have a circle and a polygon that I'd like to move to the user's local position. I managed to move the circle latLng but I can't find a way to do the same thing with a polygon. Can someone help me ...
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0answers
39 views

Positioning new point on line with OSM routing?

I have three tables: ways_vertices_pgr (from OSM Routing, contains road vertexes I use for creating routes and among other things their geometry), routes (geometry) and a table which holds the order ...
0
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2answers
66 views

change easy.button to get the location of user

I want to add a button to my leaflet that zooms to the position of the user. i cant figure out the right way. This is what i tried: L.easyButton('<img src="myimage.png">', function(btn, map){ ...
18
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6answers
25k views

How to generate random locations nearby my location?

I am trying to create random locations nearby my location. What i want is to create random latitude/longitude pairs inside a 200 meters circle surrounding my location. This is the formula i came up ...
1
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1answer
52 views

add marker to geolocate button

I'm doing a map to describe trekking paths and I need a button for the geolocation function. I saw ol examples about custom control, button and geolocation, and thanks to the drupal geolocate button I ...
2
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2answers
191 views

How to find multiple centers of gravity?

Say I have a number of customers in a geographical area, marked "c": Each customer has a Lat/Long. I would like to find x number of points, in the same space, that best serve the customers, ie. ...
2
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0answers
172 views

Get all locations of Panoramio photos in a given extent

To create a visual quality heat map I'm trying to get a list of all Panoramio photos in an about 2000 Km2 wide study area. My idea is to perform a density analysis in GIS on a point shapefile ...
8
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10answers
3k views

Device for Logging GPS and Accelerometer Data? [closed]

I am looking for a device that can track my location (lat,long) and speed all day long. Perhaps, I need GPS and accelerometer data bundled together. What I want to do is to log my daily activities. I ...
3
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1answer
42 views

Choosing aesthetic location over physical location?

I am in the process of putting together an infrastructure map for my city. We have received some engineering maps (and CAD files) that are assisting me in my task. I have also gone out and gathered ...
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3answers
35 views

Checking for proper administrative location?

I have two vector layers. The first layer contains points. This layer has a lot of fields with data like name of district, voivodeship etc. The second layer (polygon) is showing administrative ...
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0answers
17 views

Google Earth Mapping in Beijing - Why is it shifted? [duplicate]

When using Google Earth Pro, the road network and the underlying imagery do not line up. At first I thought this was a road network issue. However, when I geolocate addresses using the Baidu ...
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1answer
74 views

Sectors pointing to a lat long [closed]

Is it possible to find which sectors of a site are pointing to a specific lat long at a distance away?
6
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0answers
399 views

Translate Orientation from Sensor data to Geo location

I am tracking a device that might loose GPS signal then and there. And when the GPS signal is too low, I should use the accelerometer and Gyroscope sensors data to guess which way they should have ...
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2answers
800 views

Geo IP database for Brazil?

I am looking for a database that offers good accuracy for obtaining region from an IP address? Or, if this question is too fuzzy: Which one is (possibly) the most accurate? Note: I only need a ...
0
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0answers
74 views

Get the altitude for a given geo location with online OpenStreetmap

Is there a simple way to get the altitude for a given geo location? I would like to add a link to our gluon node form, that links to a place, where I can easily retreive the altitude above NHN or ...
1
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0answers
164 views

Getting random coordinates based on country

Are there any webserveices/APIs that can take a country name and return a random coordinates (not including the sea/ocean sections) inside that country?
0
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1answer
36 views

Creating random points within polygon from database?

Although i have a solution for it in ArcGIS named hawth's tool but i wanted to know whether it is possible in QGIS or not, additionally i am not having lower version of ArcGIS on which i can do my ...
0
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1answer
147 views

How to determine when mapview zoom level has changed using Mapbox-iOS-SDK?

I am using Mapbox-iOS-SDK 2.1.2 and I need to know when the user changes zoom level on the map view. I know how to get the current zoom level, but I don't see any delegate methods for determining ...
0
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1answer
57 views

Publish a Locator Service with a place-name alias table

I am trying to publish a locator service with support for a place-name alias table, in ArcGIS for Server 10.3. It should function similar to the Esri World Geocode Server which allows users to search ...
1
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1answer
2k views

Download/create address locator styles for Europe?

Where can I find some address locator styles for European countries? or how can I create my own address locator that contains street, house number and city, and use their aliases? PS. I have the ...
1
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0answers
96 views

How to directly get a Google API map based on a cell tower object

How do I pass a cell tower object to the Google Maps JavaScript API or Embed API to get a map for wherever the tower happens to be? I realize that I can accomplish the task in two steps by first ...
0
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0answers
11 views

How to identify features intersecting or near a marker?

Is there an app, program, service or API that can identify features (such as roads, buildings, parks, etc.) intersecting or near a marker? I'd like to achieve both goals -- meaning to both identify ...