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A Gigapan of the New York Public Library Quilt
|| 2/12/2009 || 12:40 pm || Comments Off on A Gigapan of the New York Public Library Quilt || ||


A couple weeks ago, after seeing the fabulous Gigapan of the 2009 Inauguration by David Bergman, I decided to try out Gigapan for myself.

In the past I’ve used Zoomify to do roughly the same type of zooms, but over the years I’ve found that it has some important limitations. Most notably, I’ve found that Zoomify freezes up after I’ve been using it for a couple of minutes, which would always force me to reload the page. I believe this has to do with the Flash buffer or cache filling up with data and slowing down the viewing experience. Maybe the software engineers have changed this flaw, but I haven’t been too keen on adding all my maps as Zoomifiable entries because it takes too much time and I’m aware of a means to reverse engineer the tiles into the original map.

What is unique about this Gigapan, unlike all of my previous Zoomify maps, is that I went through the extra steps of saving the original map at its full size in .jpg format. In the past when I’d use Zoomify, I’d use a map that was saved at 9,000 x 6,000 pixels, which is half the original size of 18,000 x 12,000 pixels. The reason I shrunk the map was because I was unable to save the full-sized map in .jpg format using my photo manipulation software. Since the free Zoomify converter only took .jpgs, instead of the native tiff file format, I would have to resave the file at its largest size in .jpg format, which was around 9,000 x 6,000 pixels.

In order to bypass this current limitation, I chose to use Graphic Converter to open the original 18,000 x 12,000 tiff file and save it as a .jpg. The inherent problem here is that even with a somewhat new computer, it takes about 15 minutes to open the 216 megapixel file and another 10 minutes to save the file. In the end, the final .jpg saved to about 65 megabytes, which is considerably smaller than the original file size of about 500 megabytes. With this newly compressed map being so much smaller in size, I was able to upload it and share it here.

As regular readers know, a printed 60″ x 40″ copy of this map was donated to the Map Division at the New York Public Library back in October when I gave my presentation to the New York Map Society. If you are in New York City and curious about what it looks like printed out, head over to the library and ask to see it.


If you are subscribed to my RSS feed and are reading this on through your RSS reader, please click here to view it on my website or click here to view it on the Gigapan website.


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Post Title: A Gigapan of the New York Public Library Quilt
Post Tags: , , , , , ,
Posted in: Interactive, Library, Location, Manhattan, meta-data, Midtown, New York, New York City, visualization
Last edited by Nikolas Schiller on 2/12/2009 at 12:42 pm



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Nikolas Schiller is a second-class American citizen living in America's last colony, Washington, DC. This blog is my on-line repository of what I have created or found on-line since May of 2004. If you have any questions or comments, please contact:

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