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# position_channels.coffee lib/psd/layer/ |
--- | ---
¶ |
    module.exports =
¶ Every layer starts with the basics. Here we have the layer dimensions, the number of color channels for the image data, and information about the color channels. |
      parsePositionAndChannels: ->
        @top = @file.readInt()
        @left = @file.readInt()
        @bottom = @file.readInt()
        @right = @file.readInt()
        @channels = @file.readShort()

        @rows = @height = @bottom - @top
        @cols = @width = @right - @left
¶ Every color channel has both an ID and a length. The ID correlates to the color channel, e.g. 0 = R, 1 = G, 2 = B, -1 = A, and the length is the size of the data. |
        for i in [0...@channels]
          id = @file.readShort()
          length = @file.readInt()

          @channelsInfo.push id: id, length: length

generated Tue May 12 2015 11:08:12 GMT-0400 (EDT)