Module: ol/source/Zoomify

ol/source/Zoomify


Classes

Zoomify

Type Definitions

Options{Object}

Properties:
Name Type Argument Default Description
attributions AttributionLike <optional>

Attributions.

cacheSize number <optional>

Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.

crossOrigin null | string <optional>

The crossOrigin attribute for loaded images. Note that you must provide a crossOrigin value you want to access pixel data with the Canvas renderer. See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.

interpolate boolean <optional>
true

Use interpolated values when resampling. By default, linear interpolation is used when resampling. Set to false to use the nearest neighbor instead.

projection ProjectionLike <optional>

Projection.

tilePixelRatio number <optional>

The pixel ratio used by the tile service. For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px by 512px images (for retina/hidpi devices) then tilePixelRatio should be set to 2

reprojectionErrorThreshold number <optional>
0.5

Maximum allowed reprojection error (in pixels). Higher values can increase reprojection performance, but decrease precision.

url string

URL template or base URL of the Zoomify service. A base URL is the fixed part of the URL, excluding the tile group, z, x, and y folder structure, e.g. http://my.zoomify.info/IMAGE.TIF/. A URL template must include {TileGroup}, {x}, {y}, and {z} placeholders, e.g. http://my.zoomify.info/IMAGE.TIF/{TileGroup}/{z}-{x}-{y}.jpg. Internet Imaging Protocol (IIP) with JTL extension can be also used with {tileIndex} and {z} placeholders, e.g. http://my.zoomify.info?FIF=IMAGE.TIF&JTL={z},{tileIndex}. A {?-?} template pattern, for example subdomain{a-f}.domain.com, may be used instead of defining each one separately in the urls option.

tierSizeCalculation TierSizeCalculation <optional>

Tier size calculation method: default or truncated.

size Size

Size.

extent Extent <optional>

Extent for the TileGrid that is created. Default sets the TileGrid in the fourth quadrant, meaning extent is [0, -height, width, 0]. To change the extent to the first quadrant (the default for OpenLayers 2) set the extent as [0, 0, width, height].

transition number <optional>

Duration of the opacity transition for rendering. To disable the opacity transition, pass transition: 0.

tileSize number <optional>
256

Tile size. Same tile size is used for all zoom levels.

zDirection number | NearestDirectionFunction <optional>
0

Choose whether to use tiles with a higher or lower zoom level when between integer zoom levels. See getZForResolution.

TierSizeCalculation{'default'} {'truncated'}