More fun with KML areas

Last year, soon after we created our map of 3D areas, we had fun using the KML to show you the areas covered by country and US state. Now that we have released a timeline version of our KML file it is is a good idea to revisit the concept and measure areas by release date rather than by country.

Although Google Earth Pro is able to measure the area of a KML polygon, you can only do this one polygon at a time. So to get the area of multiple polygons it is better to use online tools that offer the service. We used this tool from Zonum Solutions.

After manipulating the data a bit we were able to draw the following chart showing the progress Google is making over time.

As of this week, Google has captured in 3D approximately 315,000 sq km, which, incidentally, is almost exactly the same area as Poland, the newest country to receive 3D imagery.

Area of Poland

Given that the total area of land on the earth is approximately 148,940,000 sq km, it would take Google close to a thousand years to finish the whole earth at the current rate. This explains why they are sticking to highly populated areas. So what we really need is an estimate of the area of all the cities in the world. If any of our readers knows of a KML file with global population densities done using KML regions and not an image overlay, please let us know in the comments.

One of the latest 3D imagery finds is Santos, Brazil. It is worth having a look at, as it clearly demonstrates the benefits of an automated system of generating 3D. Modelling that one city by hand would be practically impossible. To fly there in Google Earth use this KML file.

Santos, Brazil
Santos, Brazil.

About Timothy Whitehead

Timothy has been using Google Earth since 2004 when it was still called Keyhole before it was renamed Google Earth in 2005 and has been a huge fan ever since. He is a programmer working for Red Wing Aerobatx and lives in Cape Town, South Africa.






PLEASE NOTE: Google Earth Blog is no longer writing regular posts. As a result, we are not accepting new comments or questions about Google Earth. If you have a question, use the official Google Earth and Maps Forums or the Google Earth Community Forums.

Comments

  1. FYI ESRI have an overlay which shows global population density –

    http://atlasmaps.esri.com/arcgis/rest/services/Esri/EstimatedPopulation/ImageServer

    click on the Google Earth link and load this along with the GEB 3D Imagery link to visually see how well Google’s image efforts align with populated areas.

    Cheers, Andrew.

    • Timothy Whitehead says:

      Thank you, that is certainly interesting. I was hoping for something that would let me calculate the area of the earth with a given population density. An alternative would be a list of cities with population over 300,000 as that was Google’s initially stated target.

  2. Sebastien says:

    If you want to test that technology of autogenerating 3D, try Seene on your mobile, available on the Appstore or the Playstore. It’s genius!
    https://itunes.apple.com/nz/app/seene/id698878590?mt=8
    https://play.google.com/store/apps/details?id=com.obviousengine.seene.android.core



PLEASE NOTE: Google Earth Blog is no longer writing regular posts. As a result, we are not accepting new comments or questions about Google Earth. If you have a question, use the official Google Earth and Maps Forums or the Google Earth Community Forums.