Faster way to create a deep zoom collection

Question

I am creating a silverlight pivot collection with 31K items (and images), however when I'm using the DeepZoomTools library to create the deep zoom images; it takes hours and hours (and hasn't actually completed even one).

Is there a multi-threaded way or distributed way in which collections could be created?

Answer 1

It is a time intensive process to be sure. Does your individual data points change often? What we have found in nearly all of our projects that the image for an individual item almost never changes. This allows you to streamline the process a little bit.

What I do in a case like this is to initially process the entire dataset. Then the next time I run the process, I only update the images that have been added or modified. As I said, in almost all of my cases this solved the problem you are running into. In fact, when it works, I will plug my card generation into whatever business applications that are running and generate/modify a card when data is added/changed in the system. This removes the need for batch processing altogether after your initial build.

If that will not work for you, take a look at the code for PAuthor. It is using DeepZoomTools and does so in a multi-threaded way. You should be able to find the code you are looking for there. PAuthor - CodePlex

Let me know if you have more specifics about your specific needs and we can see if we can come up with something.