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A heat map is a graphical representation of three dimentional data (X, Y and Value) on a two dimensional surface by using colors. How can I create a heat map? Perhaps you've asked this... here's one clever solution and an API thats freely available for you to use. Using the HeatMap API users can use it over the Internet or as a .NET DLL to run in your environment. You can also integrate heat map images into Google Maps or other GIS systems.
A free, restricted use version is available (max 500 calls/day) and a commercial version is available for a monthly fee (rate depends on usage). A commercial site license is also available.
From the developer: Heat maps let users quickly visualize density of locations. Some maps will show points, but being able to understand the density of those points makes it much easier to see, especially when using colors.
This solution from Geospatial Analytics Inc. gives users an API that enables you to create your own heat maps on your maps, in your application. The API includes: - free sample code for Google maps, but you can use the API with any system that can take a PNG file and overlay it on your map - The free license you can submit 100 data points per call, but the commercial license there is no limitation.
Sample use: This example shows the broadcast range for a cell phone tower based on signal strength data.
GISuser Spotlight... Twitter clients for the Google G1 and Android mobile smart phones - I’m currently using the G1 as my main/only mobile device - it’s a perfect time for such a challenge because I’m also traveling and away from the office so there are always hiccups and glitches that can occur under such circumstances - a perfect time for a test!
The 2009 NAVTEQ LBS Challenge a look at the semi finalists, the Winning apps, and the LBSzone picks! At the CTIA Wireless event in Las Vegas, NAVTEQ held the award ceremonies for their 6th LBS Challenge, a competition designed to stimulate interest in location services and encourage developers to create innovative location-aware applications. We look at the state of LBS, the TOP apps, the winners, and our own top picks!
Economic Stimulus Project areas that may create GIS/Geo Tech Opportunities - Like many of you, we haven't really had time to go through the entire 1,071 page Detailed List of Spending - you can view and download the entire document at ProRepublica. We did take a little time, however, to go through this fine summary.
ESRI Business GIS Summit, July 12-15, 2009 · San Diego, CA - This combination provides an unprecedented opportunity to learn how GIS addresses today's business challenges. If you're interested in business GIS as a manager, executive, or user, there's no better event to attend.vealed.
ESRI International User Conference, July 13-17, 2009 · San Diego, CA - ESRI customers across the globe are invited to register to attend the world's largest gathering of GIS professionals.
Webinar: Google Earth For Your Government Agency - Join Google and DLT an informative webinar on Tuesday, June 30th from 2-3 ET to learn more about how the Google Earth Enterprise solution is helping government agencies to collaborate, and take faster, more informed action.
Is your LizardTech Lizard star material? SHOW US and you could win a new GPS system. Simply snap a creative photo of your favorite, authentic LizardTech Collectable Lizard and see how it measures up. Photos will be featured on the official LizardTech Flickr page and voted on by viewers everywhere. Submit yours today and win!
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