This document discusses geospatial technologies including specifications for latitude and longitude, devices for sensing location data, data such as points of interest, and software for storing and querying geospatial data in databases. Key components mentioned are GPS, iPhones, Android devices, and the PostGIS geospatial database system. Location data from devices can be stored and queried along with points of interest.

1. GeoSpatial Technologies

2. Overview
Specifications Lat/Lon
Devices Sensing
Data POIs
Software Database etc..

9. <kml xmlns="http://www.opengis.net/kml/2.2"
<Document>
<name>One Reader's View of Harry Potter</name>
<atom:author>
<atom:name>J. K. Rowling</atom:name>
</atom:author>
<atom:link href="http://www.harrypotter.com" />
<Placemark>
<name>Hogwarts</name>
<Point>
<coordinates>-3.576327,50.620920</coordinates>
</Point>
</Placemark>
<Placemark>
<name>Little Hangleton</name>
<Point>
<coordinates>-0.006660,52.409369</coordinates>
</Point>
</Placemark>
</Document>
</kml>

11. <?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom"
xmlns:georss="http://www.georss.org/georss">
<title>Earthquakes</title>
<subtitle>International earthquake observation labs</subtitle>
<link href="http://example.org/"/>
<updated>2005-12-13T18:30:02Z</updated>
<author>
<name>Dr. Thaddeus Remor</name>
<email>tremor@quakelab.edu</email>
</author>
<id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>
<entry>
<title>M 3.2, Mona Passage</title>
<link href="http://example.org/2005/09/09/atom01"/>
<id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
<updated>2005-08-17T07:02:32Z</updated>
<summary>We just had a big one.</summary>
<georss:point>45.256 -71.92</georss:point>
<georss:line>45.256 -110.45 46.46 -109.48 43.84 -109.86</georss:line>
<georss:polygon>
45.256 -110.45 46.46 -109.48 43.84 -109.86 45.256 -110.45
</georss:polygon>
<georss:circle>42.943 -71.032 500</georss:circle>
</entry>
</feed>

12. { "type": "FeatureCollection",
"features": [
{ "type": "Feature",
"geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
"properties": {"prop0": "value0"}
},
{ "type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]
]
},
"properties": {
"prop0": "value0",
"prop1": 0.0
}
},
{ "type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
[100.0, 1.0], [100.0, 0.0] ]
]
},
"properties": {

41. Specifications Lat/Lon
Devices Sensing
Data POIs
Software Database etc..

42. GPS
iPhone Android
PostGIS
3 au
iPhone Android