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Google Earth Pro - Geological · PDF fileKeyhole Markup Language (KML) What is KML? • KML...
Transcript of Google Earth Pro - Geological · PDF fileKeyhole Markup Language (KML) What is KML? • KML...
Google Earth Pro
http://earth.images.alaska.edu/geog493/class.html
http://earth.images.alaska.edu/geog493/class.html
http://earth.images.alaska.edu/geog493/class.html
http://earth.images.alaska.edu/geog493/class.html
Help & Assigned Reading
http://digitalexplorer.co.uk/training/google-earth-training/
Today’s Lab
• Search tool to identify both general and specific locations • Navigation tools • Change preferences decimal degrees • Adding Placemarks
• Changing altitude • Description balloons
• Formatting text • Adding url’s • Adding images • Adding video
• Creating a small personal database of GE placemarks • Saving placemarks to a .kml file
Keyhole Markup Language (KML)
What is KML? • KML stands for Keyhole Markup Language. • Used for managing three-dimensional geospatial data in Google Earth and Google Maps
• It is also supported to varying degrees by other virtual Globe programs (e.g., NASA World Wind, ESRI ArcGIS Explorer).
• Examples and documentation on KML can be found on the official Google Earth webpages:
http://earth.google.com/userguide/v4/tutorials/
http://earth.images.alaska.edu/geog493/class.html
KML vs KMZ
• KMZ is a zipped version of KML.
• If you author KML that uses images, icons, or data sets that are stored on your local drive, in order to share them with other users they must be combined into a KMZ archive.
http://earth.images.alaska.edu/geog493/class.html
Authoring KML
• You can open a KML file with any text editor, such as Microsoft Word or Notepad on using nedit on a Unix system.
• When creating your own KML file it must start with standard header lines:
<?xml version="1.0" encoding="UTF-8"?> <kml xmlns="http://earth.google.com/kml/2.2">
• and end by with a closing kml tag: </kml>
• If you copy and paste the sample KML code below into a text editor and save the file with a .kml extension and with UTF-8 encoding, then you will create a KML file. http://earth.images.alaska.edu/geog493/class.html
KML Elements • Between the KML designation tags are placed one or more elements that relate to various features and functionality that can be created.
• Element names (contained within <>) are case sensitive
KML Balloon Descriptions
If you get done early…..
Use the measuring tool to measure the following:
1. Distance from the center of the Sun Bowl to the Geology Building (in km)
2. Distance from El Paso International Airport to UTEP’s Hilton Garden Inn Hotel using major roads/I-10 (in miles)
3. Distance from White Sands Missile Range to the Grand Canyon (approximately, in miles)