Refers to hardware technologies that are light and mostly independent of other peripherals including wires and cables.

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19
votes
1answer
5k views

Trilateration algorithm for n amount of points

I need to find algorithm that can calculate centroid A (aka gravity center, geometric center, center of mass) from the figure where circles T1,T2,T3,T4,T5,..,Tn intersect AND length of line R from ...
19
votes
9answers
3k views

Are there any Indoor GIS platforms?

What sort of infrastructure is needed to allow me to write a simple mobile app for indoor navigation? Professor Mike Goodchild said: the average American only spends 13 percent of the time ...
6
votes
3answers
2k views

How to find a point half way between two other points?

I'm working on implementing the OSM Mobile Binary format for map data, and because it uses a 16 bit delta for each point along a way, it cannot represent a way if there is a large distance between two ...
8
votes
6answers
351 views

Creating simple maps to view on Mobile devices?

My organization wants to create a few maps that will be interactive and viewable via phones (android, iphones,etc) and ipads. We already have a solution using Geocortex (Silverlight) for browser ...
4
votes
3answers
1k views

Mobile, Offline viewer for geographic data

Currently, field crews consumer geographic data via laptop (no internet, no gps). ArcReader. I would like to get them shapefiles (or some derivative of a shapefile) on a mobile platform (smartphone) ...
25
votes
3answers
8k views

Best GIS system for high performance web application - PostGIS vs MongoDB

I am working on a web/mobile application based on location data. Since i am already familiar with MongoDB, i found the geospatial indexing of mongo is quite suitable for my needs. As i am mainly ...
14
votes
8answers
2k views

Mobile Data collection options

What COTS software is available to do mobile data collection, with GPS positioning. Map display not required. I'm looking across the board (platform wise). I'm already aware of... RhinoSpect ...
5
votes
3answers
2k views

Does a national(USA) interstate rest stop/rest area dataset exist?

And I don't care about format--worry about that later! I found some maps in Google maps, usually per state. I also have one map made my someone else, that no longer appears in the Google Maps search ...
13
votes
8answers
980 views

Is there a smartphone app for mobile asset logging?

I'm after a recommendation for a smartphone app (iPhone or Android) to log asset information for litter bins. I need the following features GPS geotagged photos Form with drop down menus for user ...
8
votes
3answers
2k views

Mobile offline mapping and editing of shapefiles

I've got a client that wants to create a mobile app that can view and edit shapefiles stored locally on the device to enable it to work offline. There is a possibility of converting the shapefiles to ...
5
votes
1answer
2k views

How to serve local maps for an offline HTML5 webmapping app?

How could one serve maps (tiles in wherever format possible) within a Android device to be consumed by an offline webmapping app also accessed within the device's browser?
7
votes
2answers
745 views

How do I use HTML5 Storage to cache mapservice data?

I would like to develop a web app that runs on any device (including iPad and iPhone) in a disconnected mode. It is OK if the user is required to browse around and download mapservice data to a local ...
5
votes
2answers
4k views

Will mousedown events fire with Touch events on OpenLayers mobile?

I can't get the mousedown event to fire on a mobile device when I click on a marker. I'm using openlayers 2.11 with TouchNavigation. The mousedown event fires just fine in Chrome on my Desktop. Are ...
3
votes
3answers
214 views

Why mobile routing is so fast?

Why my mobile GPS routing calculates routes almost instantly and using pgRouting in my robust PC is so time costly ? EDIT: My test: In my cellphone (Android 4.2.2 - 1G RAM - Dual core - Arm v9) I ...
2
votes
2answers
702 views

Zoom to see entire MapLayer in Bing Maps

If I have a MapLayer that I'm applying to Bing Maps where I have a list of coordinates, how can I zoom to see the full MapLayer (dynamically zoom to the proper size) and toggle between seeing the ...
1
vote
1answer
60 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 ...