Collection Element (Deep Zoom File Format Schema)

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The root element when defining a collection of images for Deep Zoom.

<Collection 
  MaxLevel="max pyramid level"
  TileSize="size of tiles"
  Format="file format"
  Quality="0|1" >
  <Items> ... </Items>
</Collection>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attribute	Description
MaxLevel	Required unsignedByte attribute. The maximum pyramid level the tiles are stored at. This must be less than or equal to log2(TileSize) — typically equal to this value or one less.
TileSize	Required unsignedLong attribute. The size of the tiles. Note they have to be square. This is true for both images and collections. However, for collections, the TileSize also has to be a power of 2 (e.g., 128, 256, 512, etc.).
Format	Required string attribute. This defines the file format of the tiles. Note: Deep Zoom image pyramids only support the image files supported by the BitmapImage class.
Quality	Optional float attribute with a default value of 1. Used when creating thumbnail tiles, from 0 to 1. 1 is highest quality, 0 is lowest. Generally this value should be 0.8 or higher; however, for Deep Zoom this does not matter because collections are read-only.
NextItemId	Required unsignedLong attribute. Gets the count of items in the collection; however for Deep Zoom this does not matter because collections are read-only

Element	Description
Items	Contains the items in the collection.

None.

If you are defining a collection, this element is the root element.

minOccurs="1"

maxOccurs="1"