Simple GML Geometry

This note will deal with the simple geometry profile of GML discussed in the previous note. The intention of this profile is to provide a simple introduction to GML and to provide users such as geotaggers, geobloggers and others that . . . → Read More: Simple GML Geometry

GeoWorld: Markup Languages and Google Earth Enable the GeoWeb

November 2005

In 2005, Google Earth was introduced to the desktop. The new service offered highperformance access to a global information base of geographic imagery and maps integrated with a "slick," easy-to-use interface. Suddenly the game had . . . → Read More: GeoWorld: Markup Languages and Google Earth Enable the GeoWeb

Simple GML Geometries

Before we look at the Simple Geometry profile of GML, a short discussion of geometry is required. In GML, objects have characteristics some of which may be geometric. We can talk about the extent of a Lake, the position of . . . → Read More: Simple GML Geometries

Styling GML to KML for Visualization

One of things that makes programmers keep programming is "feedback" and especially VISUAL feedback. Show me it works – means show me it doing something I can see. While one of the most common things to do with geographic data . . . → Read More: Styling GML to KML for Visualization

Some Simple GML Profiles

Official GML profiles are now being widely discussed and it is more or less a certainty that some of these will be official OGC specifications in the coming months. Remember that GML was intended to be profiled and that a . . . → Read More: Some Simple GML Profiles

Embedding GML in non-GML grammars

There are lots of people who want to use GML for locations, extents etc. – but don't want to subscribe to the more formal grammar of GML (object-property-value) throughout their own grammar. Some examples might include the embedding of GML . . . → Read More: Embedding GML in non-GML grammars

Geotags – the answer to everything?

Much has been written about the utility of geotagging – meaning the attribution of location or extent to a web page. This essential bit of metadata was part of the original Dublin Core proposals along with author, title and so . . . → Read More: Geotags – the answer to everything?

GeoWeb 2006

Vancouver, Canada July 24 – July 28, 2006

The past several years has seen the emergence of two key components that are the foundation for a revolution in the world of geographic information. The first is the realization of the . . . → Read More: GeoWeb 2006

GML Observations and Features

In a previous note we introduced the concept of GML Observations. Observations can be used to record everything from tourist photographs to scientific measurements. An Observation might also be used to capture the acquisition of an aerial photograph or satellite . . . → Read More: GML Observations and Features

What is KML?

It is clear that KML is a success in the sense of attracting the eyeballs of the world to Google Earth. As I have said here, and elsewhere, Google Earth is an impressive achievement. It redefines how consumers think about . . . → Read More: What is KML?