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

learn more… | top users | synonyms (1)

3
votes
1answer
96 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 ...
1
vote
1answer
367 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 ...
1
vote
1answer
116 views

What sub-meter geolocation solutions exist and how can I integrate them into a web and mobile mapping workflow?

I am the manager of seven water systems. What I am trying to do is map out every meter and valve on to a map and then my workers can have the maps on their iPhones so when they have to go fix a water ...
0
votes
1answer
25 views

How can I get one neighbourhood name using address and/or postal code?

this is my first time here. I just need to get a neighbourhood/locality name, to get it I have the address and postal code (all over Argentina). -no polygons needed- This is to change a background ...
0
votes
1answer
202 views

Determining if a Geodetic location is inside a polygon made up of Geodetic vertices

Suppose we have a polygon with Geotic vertices (Points A through E). Is there an algorithm that I can use that could determine If F is inside of it? In addition, what is the most efficient way to ...
-1
votes
1answer
153 views

Extracting area with a range of lat long?

Is there any online tool to extract a certain area with a range of lat long? I'd like to overlay some locations on a map. To do so, I need a map whose range is specified so that I can determine the ...
5
votes
0answers
325 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 ...
3
votes
0answers
871 views

Downloadable, Open Source, IP GeoLocation database

I have an open source project I need a similarly open source IP GeoLocation database for. i.e. IP address to country (and ideally city). Ideally with a license that allows redistribution. This is a ...
3
votes
0answers
38 views

Algorithm for estimating position of many objects and differentiating those?

Let's assume a crowd-sourced tree location use case where a research team asks hikers to GPS the location of a specific tree type in case they encounter it. This will lead to a large number of ...
2
votes
0answers
79 views

Looping a location-allocation problem in ArcMap's Model Builder

I have developed the model below in which I iterate through a series of values for a variable in the Location-Allocation type of problem. The variable is the number of facilities to solve. The model ...
2
votes
0answers
71 views

Location API works, but neither Google Maps, not Here maps can not find location

I used Holux M-241 as GPS receiver. On Windows 8.1 I installed GPSDirect drivers, and now can see my location on PC. I tested that Location API can access to gps data (I used this Mozilla Developer ...
2
votes
0answers
153 views

Geolocate stores inside a mall?

OpenStreetMap lists the malls in Albuquerque, but not the stores inside these malls. Using the in-mall map/directory, wouldn't it be easy to add stores inside the mall? Is anyone doing this? ...
1
vote
0answers
19 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 ...
1
vote
0answers
50 views

project hdf file with geospatial_lat and lon in batch process

Is there any way that I can do a batch process in projecting hdf files wherein I could get and include only the geospatial_lat and lon in the batch script since every hdf file have different ...
1
vote
0answers
269 views

Geofencing: Query if a POINT is within a POLYGON

I am trying to use the following query to search if a point is within a defined POLYGON (aka a geofence I want to define): ...
1
vote
0answers
38 views

Free Tide prediction service - World (a freeware program would work as an alternative)

Is there a free service where I could input a GPS location and it would return me the current tide situation at the position? As an alternative - some library / program that does the exact thing one ...
1
vote
0answers
111 views

Geolocation Ptojection Transform is not working for custom coordinate system

I am using Openlayers API and I have a custom projection and I defined it to my geoserver named "EPSG:51100". I have a custom tile map. var tms2013 = new OpenLayers.Layer.TMS("2013", ...
0
votes
0answers
9 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 ...
0
votes
0answers
9 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 ...
0
votes
0answers
38 views

Finding proximity to waters, such as lakes, rivers, streams, the oceans

At Alz.care, we are working to detect whether someone who is living with Alzheimer's is nearing a body of water, because of the very high risk of drowning for persons with that neurocogntive disorder. ...
0
votes
0answers
88 views

google maps float pin in center and return location

I would like to keep the pin constant in the center of google maps while the user can move the map and zoom around and whenever the map is untouched the current gps location of the pin (in the center ...
0
votes
0answers
32 views

Understanding the error term

I have some (mobile) location data from a vendor. For each user and timestamp, there are three columns: lat, long, error. I "guess" that the error means that the user is located within a circle with ...
0
votes
0answers
72 views

Retrieving all towns/cities/villages within 2km of river path?

I need to find all the cities/towns/villages that are within a 2km range along a river path. So the solution I have now is to create a google custom map, and draw a polygon which will be 2km from ...
0
votes
0answers
77 views

Which are the most useful NMEA sentences for location based services

I am pretty new to GIS, I have been learning about all the different NMEA sentences from this website http://aprs.gids.nl/nmea/#allgp What is $GPGSV and $GPGSA and why are they useful to location ...
0
votes
0answers
205 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
votes
0answers
1k views

Is 45005000 a recognisable location?

Hello and sorry if this is not a relevant question to this SE. Please if it is not, mitigate it to where you see fit. I have recently purchased an item online and I have been provided by the seller ...
0
votes
0answers
62 views

Wrong location with result of VBscripting

I run Model Builder 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 ...
-1
votes
0answers
27 views

how to transform the projection

I Want to transform the coordinate system in this script. to get a right projection for geolocation. I want epsg 4326 for geolocation coordinate system var view = new ol.View({ ...
-2
votes
0answers
16 views

How to make a center of map?

I want to make a view of map with zoom=16 where the center is my location (geolocation). This is my code: var view = new ol.View({ ...