Module: Asposeimagingjava::ConvertingRangeOfDjVuPagesToSeparateImages

Defined in:

lib/asposeimagingjava/djvu/convertingrangeofdjvupagestoseparateimages.rb

Instance Method Summary

• #initialize ⇒ Object

Instance Method Details

#initialize ⇒ Object

# File 'lib/asposeimagingjava/djvu/convertingrangeofdjvupagestoseparateimages.rb', line 3

def initialize()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

    # Load an existing image (of type bmp) in an instance of Image class
    image = Rjb::import('com.aspose.imaging.Image').load(data_dir + "demo.djvu")

    # Create an instance of BmpOptions
    export_options = Rjb::import('com.aspose.imaging.imageoptions.BmpOptions').new

    # Set BitsPerPixel for resultant images
    export_options.setBitsPerPixel(32)

    # Create an instance of IntRange and initialize it with range of pages to be exported
    range = [0, 1] #Export first 2 pages

    i = 0
    while i < 2
        # Save each page in separate file, as BMP do not support layering
        export_options.setMultiPageOptions(Rjb::import('com.aspose.imaging.imageoptions.DjvuMultiPageOptions').new(i))
        image.save(data_dir + "djvupages#{i}.bmp", export_options)
        i +=1
    end    

    # Display Status.
    puts "Converted range of DjVu pages to separate images successfully!"
end