Module: Asposeslidesjava::ConvertingToTiff

Defined in:
lib/asposeslidesjava/Presentation/convertingtotiff.rb

Instance Method Summary collapse

Instance Method Details

#convert_with_custom_size ⇒ Object 



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# File 'lib/asposeslidesjava/Presentation/convertingtotiff.rb', line 24

def convert_with_custom_size()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'
            
    # Instantiate a Presentation object that represents a PPTX file
    pres = Rjb::import('com.aspose.slides.Presentation').new(data_dir + "Aspose.pptx")

    # Instantiate the TiffOptions class
    opts = Rjb::import('com.aspose.slides.TiffOptions').new

    # Setting compression type
    tiff_compression_types = Rjb::import('com.aspose.slides.TiffCompressionTypes')
    opts.setCompressionType (tiff_compression_types.Default)

    # Compression Types
    #Default - Specifies the default compression scheme (LZW).
    #None - Specifies no compression.
    #CCITT3
    #CCITT4
    #LZW
    #RLE

    # Depth – depends on the compression type and cannot be set manually.
    # Resolution unit – is always equal to “2” (dots per inch)

    #Setting image DPI
    opts.setDpiX(200)
    opts.setDpiY(100)

    # Set Image Size
    opts.setImageSize(Rjb::import('java.awt.Dimension').new(1728, 1078))

    # Save the presentation to TIFF with specified image size
    save_format = Rjb::import('com.aspose.slides.SaveFormat')
    pres.save(data_dir + "Aspose-Custom-Size.tiff", save_format.Tiff, opts)

    puts "Document has been converted, please check the output file."
end

#convert_with_default_size ⇒ Object 



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# File 'lib/asposeslidesjava/Presentation/convertingtotiff.rb', line 11

def convert_with_default_size()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'
            
    # Instantiate a Presentation object that represents a PPTX file
    pres = Rjb::import('com.aspose.slides.Presentation').new(data_dir + "Aspose.pptx")

    # Saving the PPTX presentation to Tiff format
    save_format = Rjb::import('com.aspose.slides.SaveFormat')
    pres.save(data_dir + "Aspose.tiff", save_format.Tiff)

    puts "Document has been converted, please check the output file."
end

#initialize ⇒ Object 



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# File 'lib/asposeslidesjava/Presentation/convertingtotiff.rb', line 3

def initialize()
    # Converting Presentation to TIFF with default size
    convert_with_default_size()

    # Converting Presentation to TIFF with custom size
    convert_with_custom_size()
end