- rNews 1: The GeoCoordinates Class
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rNews: Why rNews?
Introduction To RDF
Introduction To RDFa
rNews 1: Introduction to rNews
rNews 1: Class Attributes in rNews
rNews 1: The Concept Class
rNews 1: The Place Class
rNews 1: The GeoCoordinates Class
rNews 1: The Person Class
rNews 1: The Organization Class
rNews 1: The Storyline Class
rNews 1: The NewsItem Class
rNews 1: The Article Class
rNews 1: The Audio / Image / Video Object Classes
rNews 1: The UserComments Class
rNews 1: Implementation Guide Introduction
rNews 1: Quick Reference
The relation of rNews to other existing standards
rNews in the news
rNews Changes from 0.1 to 0.5
rNews 0.1 Overview
rNews 0.5 Overview
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Wed Jan 22, 2014: Rename from rNews-10-The-Geo-Coordinates-Class to rNews-1-The-GeoCoordinates-Class by mdiptc
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rNews Forum (comments, discussions) - now moved to https://groups.io/g/iptc-rnews/ - please join us there!
rNews: Why rNews?
Introduction To RDF
Introduction To RDFa
rNews 1: Introduction to rNews
rNews 1: Class Attributes in rNews
rNews 1: The Concept Class
rNews 1: The Place Class
rNews 1: The GeoCoordinates Class
rNews 1: The Person Class
rNews 1: The Organization Class
rNews 1: The Storyline Class
rNews 1: The NewsItem Class
rNews 1: The Article Class
rNews 1: The Audio / Image / Video Object Classes
rNews 1: The UserComments Class
rNews 1: Implementation Guide Introduction
rNews 1: Quick Reference
The relation of rNews to other existing standards
rNews in the news
rNews Changes from 0.1 to 0.5
rNews 0.1 Overview
rNews 0.5 Overview
SportsML
Photo Metadata
Video Metadata
NewsML 1
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rNews 1: The GeoCoordinates Class
⟨⟨ Previous: The Place Class
Next: The PostalAddress Class ⟩⟩
GeoCoordinates
point
circle
elevation
polygon
box
line
Figure 1:
Attributes of the
GeoCoordinates
class.
The
GeoCoordinates
class is used for expressing geographic metadata about
Place
objects. To ensure maximum compatability with existing standards for representing geographic metadata, the
GeoCoordinates
class borrows the majority of its attributes from the existing
GeoRSS
standard. These attributes include:
point
line
polygon
box
circle
, and
elevation
The table below enumerates all attributes of the
GeoCoordinates
class and provides both the expected data type and a definition of each attribute.
Attribute
Type
Definition
Example
point
xsd:string
A point is a physical location on Earth. A point is expressed as a latitude and longitude separated by a space character. Points should expressed in decimal as laid out in the
WGS84 specification
40.672 -73.983
line
xsd:string
A line is a point-to-point path consisting of two or more points. A line is expressed as a series of two or more
point
objects separated by space.
38.92 -94.6442.71 -73.2
polygon
xsd:string
A polygon is the area enclosed by a point-to-point path for which the starting and ending points are the same. A polygon is expressed as a series of four or more space-delimited points where the first and final points are identical.
40.764161 -73.97283640.768062 -73.98141940.800296 -73.95841640.796918 -73.9494940.764161 -73.972836
box
xsd:string
A box is the area enclosed by the rectangle formed by two points. The first point is the lower corner, the second point is the upper corner. A box is expressed as two points separated by a space character.
38.920952 -94.64544338.951797 -94.680439
circle
xsd:string
A circle is the circular region of a specified radius centered at a specified latitude and longitude. A circle is expressed as a pair followed by a radius in meters.
38.920952 -94.645443500
elevation
xsd:string
The elevation is the height above sea level in meters of a specified point. An
elevation
attribute must be specified in conjunction with a
point
attribute.
807.79
Applying the
GeoCoordinates
Class
The
GeoCoordinates
class is used to add additional context to
Place
objects. Our
sample article
contains five such places:
Libya
France
Great Britain
United States
Turkey
To express these
Place
objects along with the relevant
GeoCoordinate
objects in RDF/Turtle we would write the following:
@prefix rdf:
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⟨⟨ Previous: The Place Class
Next: The PostalAddress Class⟩⟩
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