[Comprehensive Analysis of deepzoom] Cool! Deep zoom

[Comprehensive Analysis of deepzoom] Cool! Deep zoom
Zhou yinhui
Microsoft Silverlig22. Includes Seadargon "Created by the Team Deep zoom Technical Support. Simply put, deep zoom technology allows you to view a large image, but only sends the part currently displayed on your screen to your browser. You can also smoothly scale and flat images. This is like online map dividing a large image into many small tiled images and then sending those you are viewing to your screen. The advantage of this is that you don't have to spend a lot of time downloading a large set of image data that you have never even read or noticed.
you can go to the http://memorabilia.hardrock.com/experience of this sharp technology:
note that a total of 257 images are loaded, and each picture is a high-resolution big image, downloading these 257 images to the client may cause a mental breakdown, however, using the deepzoom technology to download and display the image below is as fast as displaying a small image (as to why, this series will be discussed later)

In this way, users can zoom in and drag any part of the image to View Details. Take photos of several books as an example, we can observe it with the mouse:

A little closer:

Closer:

Note: The entire series of operations are completed by clicking the mouse or clicking the scroll wheel. The results are very smooth and smooth, but there is no page refresh, when using some existing online maps, You need to resize the maps to refresh the whole or part of the page. The user experience is completely different.

As developers, we can use deepzoomcomposer to help us and add it to the silverlight2 application. Next I will talk about how to apply the deepzoom Technology in silverlight2.