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September 15, 2011
Google Earth Explorer: A fun way to fly through Google Earth
Paul van Dinther is at it again, with another great Google Earth script for us to play with. You'll remember Paul from fun projects he's built such as Ships, Helicopters, and Drive the A-Team Van.
He's now developed GExplorer, a fun way to fly through Google Earth. It's a physics based 3D view controller that allows precise and smooth control of the camera. It does this by combining keyboard and mouse input. Camera movement is in 6 degrees of freedom meaning you can look anywhere and go anywhere. It takes some getting used to, but works amazingly well.
It feels a bit like the controls in a first-person shooter, where you move around with the keyboard and control your view with the mouse. The feeling of smoothly gliding over the mountains as you fly around Google Earth is quite amazing.
Here's a video showing it in action:
You can try it for yourself over on his site. Google has recently purchased GExplorer from Paul for the express purpose of making it open source. If you'd like to integrate it with a project of yours, head over to Google's GExplorer project page to get more information.
Posted by mickmel at 7:19 AM
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December 13, 2010
Android and Google Earth Technology
During the past year I have been sailing through the Caribbean and the south Pacific and, after 13,000 miles of sailing, arrived in New Zealand. Right now, I'm back in the US visiting friends and family for the holidays.
Earlier this year, Google was good enough to send me an unlocked Nexus One (see GEB review). Increasingly, I've managed to use the phone - often without cell or WIFI connections - for a variety of applications. Google Earth for Mobile still has the ability to work offline, just like the desktop version. You just have to visit the places you want to store (while you are on an Internet connection) and the last 2GBytes of data are remembered in your cache. Then, when you have no Internet, you can still use Google Earth to re-visit those places. The offline ability can be incredibly useful since you often have a need for geo-spatial awareness when you are far away from a data connection (read my story on Google Earth for Sailors).
Keep reading for more about using Google Earth on your phone...
Google Earth for Android has a nifty interface when you use it under motion. When you turn on the GPS, you can click on the menu option "My Location" and it will track your position. As you move along in a car, it can even tilt the view so you get a 3D perspective of your motion down the road. Unfortunately, the current version doesn't let you set up directions from within Google Earth though. But, that's not a real problem, because of the next app.
Google Earth technology has been blended in with Google Maps on Android as well. There's an amazing GPS navigation tool that works with Google Maps for Android and gives you voice navigation, directions, AND it can show your 3D position using a view very much like the Google Earth view. In fact, the navigation has a better look than more costly dedicated car navigation tools. And, it is available for free for your phone!
When we first arrived to New Zealand, Google had just turned on the ability to do GPS navigation for that country. I tested driving with both Google Earth and with the new GPS navigation tool and they worked flawlessly! See the screenshot to the right for a view of the app running while driving in New Zealand. I really like the GPS navigation tool and have used it several times in both New Zealand and now in the US. The only drawback is that the GPS uses a lot of power and will drain your phone battery quickly (unless you hook up to a power source like your laptop or the lightplug). And, if you are using a limited data plan it will be best to first cache your route data before you leave while you're on a WIFI so you don't use up the bandwidth on the trip.
Another favorite Android app, which indirectly uses Google Earth technology, is Google Sky Maps. This app is one of the killer apps of Android IMHO. I've shown it countless times to people and everyone is always impressed. It uses the motion sensors, digital compass, and GPS to detect the 3D position of the phone as you hold it. It then draws the stars, planets, and constellations as viewed behind your phone. So, as you hold the phone up it can show you what stars or planets you are seeing in that direction! It even shows them under the horizon, so you can see when the sun, moon, or constellation is about to rise. Sailors love this app because they are so often getting to see the beautiful night sky while sailing at sea with no city lights. Did you know Google Earth has a really cool night time sky mode?
Android phones and Google Earth technology really go well together. I'm expecting to see even further advances in the future - things like showing your GPS tracks (or other KML content) in Google Earth on your phone, and viewing other popular Google Earth content like real-time earthquakes, weather, web cams, etc.
Posted by FrankTaylor at 9:31 AM
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September 27, 2010
Geospatial Revolution: Episode One Released
Back in July, we told you about the Geospatial Revolution project that Penn State Public Broadcasting was putting together. They've now released the first episode and it's quite awesome.
The first episode is about 14 minutes long, and covers a variety of topics. Most of it is a technology overview ("How We Get There", "How We Got Here", "Why We Need It", etc), but also includes an excellent segment about Ushahidi and the great work that they are doing.
Beyond that, they have lots of great snippets of info from people in the industry, including Mark Brender and Matt O'Connell from Geoeye and Michael Jones from Google.
Check it out for yourself on the Geospatial Revolution site, or just watch the full episode below:
Posted by mickmel at 9:46 AM
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August 12, 2010
Google Earth For Sailors and Travelers
A big part of the experience of sailing around the world is meeting up with other sailors doing similar routes. In French Polynesia, we have had numerous opportunities to meet up with the crews of boats we have met along the way, and many new boats as well. As a big fan of Google Earth, I have been making sure to share tips on some of the ways I am making use of Google Earth as we sail. Many of these tips apply equally to many other forms of travel. One thing is apparent, few people realize some of the less-known, but best features of Google Earth for travel.
Here are some important tips on Google Earth's lesser-known features that every sailor (and many other travelers) should know:
1) Google Earth can be used without an Internet connection - As we are traveling, I actually use Google Earth more without an Internet connection than with. Many people aren't aware that Google caches the last 2 GBytes (if your cache is set to the maximum) of imagery/layers you last loaded. What I do is visit the places I'm about to travel to (in particular the anchorages) and make sure to load the imagery of those places most important to me. It's important not to load too large an area or the cache will start forgetting the older stuff. Once we are on a passage (with no easy way to be on the Internet) we can still load Google Earth and view those last places loaded. I can view what the appraoch to an anchorage is like, and the places we plan to visit while reading other guide materials or charts we have. Read more about using Google Earth off the Internet.
2) The Ruler - I frequently make use of the Google Earth ruler to measure distances between places we are going, or the places we have already traveled. You can change the units (I frequently use the "nautical miles" units) to help convert to local measures. Also, you can trace out paths, not just single measurements (look for the tabs at the top of the window that pops up to find the "Paths" tab). This is very handy for measuring routes. As a sailor, I often use this feature to check distances on passages, determine the best places to anchor, estimate dinghy runs, and distances we'll have to walk to grocery stores and customs offices.
3) GPS Tracks - if you have a GPS, you can take your saved GPS tracks and use many free programs to convert your track to GPX. Some GPS programs will even output your GPS tracks directly to Google Earth's KML. But, Google Earth will read GPX files as well. Simply open your KML or GPX file of your track. The new Google Earth 5.2 presents you with a new option to save your file as a "track". This lets you play back the track with some new features like the time slider. I also recommend a free online program called "GPSVisualizer" to generate highly customized GPS tracks for use with Google Earth.

4) GPS in Real-time - Google Earth can connect directly to many GPSes. Look for the option under "Tools->GPS". If you have a Garmin with a USB connection, it is very simple. You can also use the NMEA option to connect. Read more about that in the Google Earth user guide. Once you have your GPS connected, Google Earth can show your position in real-time. It makes Google Earth into something like a 3D "chart plotter". Google Earth is not to be used for navigation purposes. The data is not intended for that, so it is not guaranteed to be accurate enough to sail by. However, using it as an additional reference has proven to be very effective. The satellite is often (but, not always) good enough to see underwater obstructions (such as coral heads, rocks, and even sunken ships). It has also been handy for seeing the best route through passes. In fact, I have often found GE imagery is more accurately placed than my electronic charts. You need to remember some of the imagery can be several years old though. The imagery is definitely not real-time (read about Google Earth imagery).
5) Many other uses - I also share our position reports, GPS tracks, and photography using Google Earth. You can share your photos for free with Google's Panoramio - which lets you map the positions of each photo when you upload them (or you can do the geotagging with another program). The photos will later appear on Google Earth and Google Maps for everyone to see as icons when the Panoramio/Photos layer is turned on. I also take 360 Panoramas and upload them to 360cities.net, which are also viewable on Google Earth, or you can put them on your web site (see example). Most importantly, I often use Google Earth while on the Internet to do research on the places we are going to find information and pictures about popular places to visit. Turning on the Panoramio layer is a fast way to find popular places (more photos in the most interesting spots). I also showed a bunch of sailors how to use Google Earth to show the best place to watch the solar eclipse that occurred over the central Pacific waters on July 11th.
These are just a few of the many ways I use Google Earth while sailing/traveling. They are all free, and easily available to anyone. All you have to know is that they exist, and how to use them.
Posted by FrankTaylor at 9:16 AM
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June 2, 2010
New GPS Satellites Launched
Every day, we rely a little more on GPS satellites for both work and pleasure. Along with items like your car GPS navigation system, many items in Google Earth (such as these ships, real-time air traffic or following Frank) require GPS to enable us to see their current location.
Last week, the U.S. Air Force launched a new satellite (the GPS IIF SV-1), the first in a series of launches aimed at replacing all 24 existing satellites over the next 10 years.
These new satellites offer a variety of enhancements over the existing ones. The most important part of this project is to simply replace them. Numerous reports are concerned that the existing network may begin to fail due to age. This will obviously remedy that.
In addition, these new satellites will provide a stronger, more accurate signal. Rather than the roughly 20 foot accuracy that you currently receive, the new ones will allow for accuracy down to about 3 feet. In addition, the stronger signal will help more GPS units to function properly indoors, which could be a big boost for various augmented reality tools that are beginning to find their way into the marketplace.
You can view the launch of the IIF SV-1 (aboard the Delta IV rocket) below:
The launch of the next satellite (GPS IIF SV-2) is scheduled for November, 2010.
Posted by mickmel at 6:46 AM
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More entries for this category:
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- Links: Load KMZ files on handheld Garmin devices, video of NASA rocket crashing into the moon - October 9, 2009
- New Google Earth Imagery - July 2009 - Good and Bad Part 2 - July 11, 2009
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- NASA Doing Robotic Recon with Google Earth - June 30, 2009
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- Rowing Around the World with Google Earth - February 11, 2009
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- Links: Santa Tracker Popular, Volvo Ocean Race, Lost World Discovered, Cold War KML - December 26, 2008
- Watch Santa Claus Make his Deliveries - December 24, 2008
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- Links: Location OS, GeoEye, Super Tour Mashup - November 10, 2008
- Google Street View Italy Released - October 29th - October 30, 2008
- Links: Planet Search, Interactive KML, FlightSim, iPhone GPS - October 21, 2008
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- Links: Panoramio Heat Maps, See Russia?, 1m LiDAR, Airship - October 13, 2008
- Fire Hydrants in Google Earth - September 29, 2008
- The Boat Story Continues - Boatyard, Name, Moving - September 21, 2008
- Update on Using GPS for Tracking in Google Earth - September 19, 2008
- WikiLoc Now A Google Earth Layer - August 28, 2008
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- Circumnavigation: The Boat - Part I - August 24, 2008
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- Notes from the Bahamas: GE in Education, AGE More KML, Disney 3D - June 26, 2008
- Google Releases More Map Crowdsourcing Tools - June 24, 2008
- Links: New StreetView Stuff, WorldWide Telescope, Yahoo WOE, Dishpointer, GPSAnimator - May 13, 2008
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- Rumor-mill: Google Ocean in the Works - April 30, 2008
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- Links: Science Uses, Compass, GM vs VE, Healthy Planet, and more - April 28, 2008
- How to Get 3D Buildings in Google Earth - April 24, 2008
- New Contour Lines in Google Maps - April 3, 2008
- Iditarod 2008 Dog Sled Race Live in Google Earth - March 10, 2008
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- Links: SpaceNavigator Contest, Excel to KML, Google Geo Talk, Crysis - February 5, 2008
- Real-Time Google Earth GPS Tracking - via Bus - February 2, 2008
- Wrong Turn Down Google StreetView - January 27, 2008
- New Layer Goodness for Google Earth - January 2008 - January 25, 2008
- Navigation Gadget Tricks with Google Earth 4 - January 8, 2008
- Top 10 New Google Earth Features 2007 - December 31, 2007
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- Headed to San Francisco This Week - December 9, 2007
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- Links: Google at the Pump, Sigdoarjo Mud Flow, Boxing Champs, California Fire Costs, New Trees - November 9, 2007
- X PRIZE Cup Photos Mapped - November 1, 2007
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- Links: Chinese Cop Catches Crook, Malibu Fire, EveryTrail Update, CIA WorldFactbook, Hungary Weather - October 22, 2007
- Microsoft Virtual Earth Supports Basic KML and KML Searching - October 15, 2007
- 2007 Wirefly X PRIZE Cup - October 8, 2007
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- My Maps - New Google Maps Update Supports Google Earth Features - April 5, 2007
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- Watch a GPS Phone Being Delivered via UPS Live! - June 7, 2006
- Pin in the Map - Keep it Simple - May 30, 2006
- Unicycling for College Money - Track Max in Google Earth - May 28, 2006
- Rio de Janeiro, Brazil Points of Interest in Google Earth - May 26, 2006
- Tour de France 2006 in Google Earth - May 25, 2006
- Volvo Ocean Race Leg 7 in Google Earth - May 18, 2006
- Juicy Geography Lesson on GPS - May 3, 2006
- Tagzania - Powerful Google Maps/Google Earth Mashup - April 26, 2006
- magnalox - New Features for Google Earth - April 25, 2006
- Directions for Europe Now in Google Maps/Google Earth - April 24, 2006
- Bowdoin College Campus - A Google Earth Map - April 22, 2006
- Seattle 911 Live in Google Earth - April 18, 2006
- Mini-News Roundup - April 17, 2006
- Honda Releases Traffic System in Japan for Google Earth - April 4, 2006
- Follow Volvo Ocean Race Leg 5 - April 3, 2006
- GlobalFlyer Attempting Third World Record - March 15, 2006
- Melbourne Commonwealth Games 2006 in Google Earth - March 10, 2006
- Best Topo Map Interface for Google Earth - March 9, 2006
- Bermuda Treasure Shipwrecks Map - March 7, 2006
- FSPilot Connects FS2004 to Google Earth - February 26, 2006
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- Maps of Torino, Italy - Winter Olympics Site - in Google Earth - February 5, 2006
- Arctic and Antarctic Ice Floes in Google Earth - January 25, 2006
- Sundance Film Festival "Event Map" in Google Earth - January 24, 2006
- Enhancement to GPSVisualizer for Google Earth - January 23, 2006
- Endangered Frigatebird "Lydia" Tracked in Google Earth - January 21, 2006
- Enhanced Road Layers for Google Earth - January 19, 2006
- Transatlantic Sailing Adventure Using Google Earth - January 18, 2006
- CIA World FactBook in Google Earth - January 13, 2006
- Google Earth for Cars - January 7, 2006
- Volvo Ocean Race Leg 2 - January 6, 2006
- Globe Glider - Integrated Maps within Google Earth - January 3, 2006
- Official Google Earth Santa Tracker - December 23, 2005
- Santa's Route in Google Earth - December 21, 2005
- Wilco Database of Concert Tours - December 14, 2005
- Gone Sailing! Passage Plan in Google Earth - December 13, 2005
- More GIS Data for Google Earth - December 1, 2005
- Tracking Birds with Google Earth - November 25, 2005
- Transat Jacques Vabre 2005 Race in Google Earth - November 16, 2005
- Fantastic Google Earth Documentary on Sir Ernest Shackleton - November 14, 2005
- Everything You Wanted to Know About Singapore - November 12, 2005
- Another Sailor Documents Trips Using Google Earth - November 9, 2005
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- MapLandia - Unique International Google Maps/Earth Website - November 2, 2005
- GPS/Photo Tracks - RoboGEO v2.1 Supports Google Earth - October 31, 2005
- New Satellite Photos for Pakistan - Kathryn Cramer - October 25, 2005
- Hidden Logging in Tropical Forests Revealed - October 22, 2005
- Magnalox - GPS Story Telling for Google Earth - October 19, 2005
- View All the World Heritage Sites - October 13, 2005
- Documenting a Recent Flying Trip - October 9, 2005
- Aussie Crag Climbing - October 7, 2005
- Garmin Buys MotionBased - October 4, 2005
- Watching Sports with Google Earth - September 27, 2005
- Tracking a Whale Shark in the Indian Ocean - September 24, 2005
- Sailing the Seven Seas - September 10, 2005
- Google Earth/Maps Helps with Archeological Discovery - September 7, 2005
- City of Portland GIS - August 25, 2005
- Geocaching Google Earth - August 15, 2005
- Arizona Hiking Trip - August 10, 2005
- Earth at Night - August 9, 2005
- Flying - Keeping a Flight Log - August 5, 2005
- Geotagged Flickr photos on the fly... - August 3, 2005
