class IiifS3::ImageTile
Class ImageTile
is a specific ImageVariant
used when generating a stack of tiles suitable for Mirador-style zooming interfaces. Each instance of ImageTile
represents a single tile.
@author David Newbury <david.newbury@gmail.com>
Public Class Methods
new(data, config, tile)
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Initializing this
@param [Hash] data A Image Data object. @param [IiifS3::Config] config The configuration object @param [Hash<width: Number, height: Number, x Number, y: Number, xSize: Number, ySize: Number>] tile
A hash of parameters that defines this tile.
Calls superclass method
# File lib/iiif_s3/image_tile.rb, line 23 def initialize(data, config, tile) @tile = tile super(data, config) end
Protected Instance Methods
filestring()
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# File lib/iiif_s3/image_tile.rb, line 41 def filestring "/#{region}/#{@tile[:xSize]},/0" end
region()
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# File lib/iiif_s3/image_tile.rb, line 37 def region "#{@tile[:x]},#{@tile[:y]},#{@tile[:width]},#{@tile[:height]}" end
resize(width=nil,height=nil)
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# File lib/iiif_s3/image_tile.rb, line 30 def resize(width=nil,height=nil) @image.combine_options do |img| img.crop "#{@tile[:width]}x#{@tile[:height]}+#{@tile[:x]}+#{@tile[:y]}" img.resize "#{@tile[:xSize]}x#{@tile[:ySize]}" end end