Archive for the 'data visualization' Category

15th Jun 2009

Visualizing the World – Wow!

This is a really powerful tool for viewing global statistics that might be useful for class.  The visualizations in Hans Rosling’s presentation  are pretty amazing.

Motion Map

The tool Rosling uses in the presentation is available online (along with his blog).  It took me a little while to figure it out how to use it, but experimentation with the maps and charts, along with the video tutorial, really helped me realize how much is here.

Indicators include health, economic, education, environmental, and more data from the UN.

The site also provides information about how you can use Google Spreadsheets to make your own motion charts.  I experimented, and the process is fairly straight-forward for charts but doesn’t include the mapping piece, which is available for the UN data on Rosling’s site.

oil_consumption.jpg

Total Oil Consumption – Let’s get on those bikes or carpool America :-)

Posted by Posted by Mike W under Filed under data visualization, education, general, gis, mapping, technology Comments No Comments »

02nd Aug 2008

Campus Technology Award

Our project using Google Earth to connect Boston, NY, and Greenville in Lloyd Benson’s Urban History class won an Annual Campus Technology Award. Check it out!

Here’s a little bit more info on the project that I put together for a NITLE conference this spring.

 google_earth_tour.gif

Project FAQs

It’s amazing how quickly things change. Picasa and Flickr now automatically put geocoded images on the map. For Flickr you have to make sure this is set to ‘yes’ in the privacy and permissions section of your profile.

flickr

Here’s an example of an image in Picasa that is automatically placed on the map. I took it with an iPAQ with built-in GPS. I almost walked right through the web when getting out of my car. That would have been interesting! It reminds me of the time I put my kayak on my head to carry it, and a big spider that had set up camp started falling towards my face. I closed my mouth just in time!

spider

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19th Jun 2008

Keeping Score

I remember my uncle Paul and dad teaching me to keep score as a kid. Somewhere I still have a score card from a Reds game I attended with my dad. Pete Rose was deep into his pursuit of Joe DiMaggio’s hitting streak and kept that streak alive that night. Tonight I passed along the tradition to my daughters who seemed to enjoy it, as long as we switched each inning. As you can see, the Greenville Drive turned up the heat late in the game for a great comeback. This seems like a classic example of information visualization in action.  You can see the offensive flow of the game (for the home team, anyway) pretty quickly.  Yes, Field of Dreams is one of my favorite movies. Same with Bull Durham.

score

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05th Apr 2008

Concept Map Software Demo – CmapTools

CMapTools is concept map software which is available free for educational use. I created a quick demo of some of the main features. I especially like the support for mulitmedia objects.

super hero small

Oops! See this 60 sec correction / tip for saving space in your concept map.

Of course, there are many academic uses, but the above superhero example is kind of a fun intro (see more detailed, finished super hero map here). For example, the Science Education Resource Center (SERC) at Carleton College has some great information on using concept mapping in the geosciences.

Posted by Posted by Mike W under Filed under concept maps, data visualization, demo, general, science, technology Comments 4 Comments »

11th Apr 2007

Brief Furman Tour in Google Earth from Geocoded photos

Man, Furman campus is beautiful in the spring. I’ve been experimenting with a handheld device (ipaq 6900 series) that EES professor Suresh Muthukrishnan has been using in class. It has built-in GPS, so I went out and snapped a few pictures this morning. It was great to have an excuse to walk around campus in the cool air. The latitude and longitude are geocoded into the picture when the GPS is on, so I wanted to see how easy it would be to create a google earth file (kml or kmz) to show a virtual tour of where I’d been. It looks like Google Earth Pro can rip the geocoding information from the picture and create the file, but I can’t spring for the pro version yet.

Instead I used a program called RoboGeo to create the kml file. It looks like the program is very useful if you don’t have a GPS built into your camera as well. It did a good job creating a path from a series of photos. Check out the tour in Google Earth.

furman_tour_image

In the ‘Places’ window of Google Earth you have to open the ‘routes’ folder and click ‘path’. You can see that it just connects the dots and shows me swimming or boating out to the bell tower :-)

The trial version throws an error into the latitude and longitude value, so I had to override those manually. That’s why the images are attached where the object is rather than where I was standing when I took the picture. The full version will geocode from the photographer’s location with no kml editing necessary.

I think you’ll also see why I did poorly in photography class.

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11th Jan 2007

Google Earth and Running

running
mapmyrun.com is a really cool website for runners. It allows you to map your run using Google Maps / Google Pedometer technology, determine distance , share your route with others, and save the route with your profile. You can also put in your time, height, weight, etc.., and it will calculate your pace and calories burned.

If you’re running with a GPS unit, you can upload the data to mapmyrun, and it will automagically map your route. I don’t run with a GPS, so I haven’t tested it yet, but that would save some time.

Another nice feature is that the site will automatically create a kmz file, so if you have Google Earth and open this file, your route is mapped in Google Earth. Here’s my route from Furman to the North Greenville YMCA in mapmyrun and the kmz file for Google Earth.

And to think, I used to get in my car and use the odometer to gauge a route. How early 2000! ;-) Now if they could only add a feature that would map the location of ankle biting little dogs, and it would be perfect!

Posted by Posted by Mike W under Filed under data visualization, general, google earth, mapping, running, technology Comments 2 Comments »

05th Jan 2007

Demo of Google Earth Features and Coversion of iShowU movie to swf

The purpose of this post is two-fold.

1. To demo the timeline animation and wikipedia features new to Google Earth (see my earlier post)

Check out the very amateur demo. My apologies for the hushed tones. You may need to turn up the volume. Everyone in my house was still sleeping :-) .

Please let me know via comment if you can’t see or hear the swf version.

2. Tim Lauer blogged about using iShowU as a Mac alternative for Snapz, so as a newly converted Mac user, I decided to give it a try. I wanted to see if I could generate an swf from the created movie like Camtasia does automatically (only for the PC – sigh) . After taking care of some minor edits in iMovie, I was ready to experiment.

This article on converting video to swf from Adobe was very helpful. We have Flash in-house, so it made sense to try it with that. I still have some learning to do, but the process wasn’t too bad. I want to get rid of the dead space above and below the capture, and I sound like I’m talking into a tin can after the conversion to an swf.

I learned that the swf autoplays automatically, even if you set params in the html object tag. I had to take care of that setting in the flash file itself, setting the movie component autoplay parameter to false. Hopefully, this saves someone else some time in the future!

You essentially have 3 files you need to move over to the server to include the swf in your webpage.

1. The generated swf file
2. The generated flv file
3. The swf that presents the player controls to the user

Then it’s just a matter of including the appropriate tags in your html to bring it into the page. Dreamweaver makes that pretty easy, and the publish feature mentioned in the Adobe article also creates a sample html file that has what you need.

Posted by Posted by Mike W under Filed under data visualization, demo, education, general, google earth, mapping, technology Comments 3 Comments »

29th Dec 2006

Great Google Earth Feature – Time Animation

On the Google Earth Blog, Frank Taylor lists the top ten Google Earth time animations for 2006. Time animations were added in Google Earth 4 and are a great way to view data that changes over time, for example animal and human cases of avian flu (Declan Butler’s blog). Authors simply add a time span element to data in kml files, like so, and Google Earth renders a time slider bar in the user interface.

<TimeSpan id=”ID”>
<begin>begin date here </begin>
<end>end date here</end>
</TimeSpan>

The time slider is highlighted in a screen shot of the avian flu map below.

google earth

There are some Google Earth software limitations that were apparent when viewing Hurricane Katrina data. I wished I could have incremented the “animation” in hours rather than days. There are some great suggestions for improvement on Stefan Geens’ Ogle Earth Blog, so I won’t rehash them here. This functionality is a great addition to GE!

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28th Dec 2006

Information Aesthetics

After complaining this summer about the limitations of PowerPoint as an information-sharing medium this summer, Dr. Jane Love at Furman pointed me towards Edward Tufte’s essay The Cognitive Style of PowerPoint. Great stuff! I was really struck by the chasm between what our brains and eyes want to see and what a PowerPoint presentation gives us instead. One of my New Year’s resolutions is to read his book The Visual Display of Quantative Information and get one of Tufte’s posters like the one graphically displaying Napolean’s march.

Shortly after reading Tufte for the first time I added the Information Aesthetics Blog to my reader. I enjoy the blogs but confess I usually have to go to the source to understand the data being represented. Below is a nice link from infosthetics to a Google video comparing stellar and planetary sizes. Although one missing planet begs a question that would leave my kids unable to contain silly laughter. That’s where their sense of humor is right now.

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