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    Perl Graphics Programming

    • Perl Graphics Programming

    • By:

    • Publisher: O'Reilly Media, Inc.

    • Pub. Date:

    • Print ISBN-13: 978-0-596-00219-0

    • Pages in Print Edition: 480

    • Subscriber Rating: 0 out of 5 rating0 [0 Ratings]

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    Overview

    Perl programmers naturally turn to Perl to tackle whatever challenge they have at hand, and graphics programming is no exception. Geared toward Perl users and webmasters, Perl Graphics Programming demystifies the manipulation of graphics formats for use on the Web. The book provides all the tools necessary to begin programming and designing graphics for the Web immediately.

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    Table of Contents

     

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    Perl Graphics Programming: Creating SVG, SWF (Flash), JPEG and PNG files

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    A Note Regarding Supplemental Files

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    Preface
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    Creating Raster Images and Web Graphics

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    Creating Vector Images and Animations

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    Creating Documents and Printing

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    Conventions Used in This Book

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    How to Contact Us

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    Acknowledgments

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    I. Raster Images and Web Graphics

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    1. Creating Graphics with Perl
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    Introduction to File Formats

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    Color

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    Raster File Formats

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    Vector Graphic File Formats

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    Document File Formats

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    References

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    2. On-the-Fly Graphics with GD
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    GD Basics

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    Sample GD Applications

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    Reading and Writing Methods
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    new( ), newPalette( ), newTrueColor( )

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    newFromJpeg( ), newFromJpegData( )

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    newFromGd( ), newFromGdData( )

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    newFromGd2( ), newFromGd2Data( )

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    newFromGd2Part( )

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    newFromPng( ), newFromPngData( )

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    newFromXbm( )

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    gd( ), gd2( )

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    jpeg( )

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    png( )

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    wbmp( )

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    Getting and Setting General Information
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    compare( )

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    getBounds( )

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    interlaced( )

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    isTrueColor ( )

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    Color Table Manipulation Methods
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    colorAllocate( )

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    colorDeallocate( )

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    colorClosest( )

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    colorClosestHWB( )

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    colorExact( )

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    colorResolve( )

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    colorsTotal( )

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    getPixel( )

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    rgb( )

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    setPixel( )

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    transparent( )

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    trueColor( )

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    trueColorToPalette( )

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    Brushes, Styles, and Tiles
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    setBrush( )

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    setStyle( )

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    setTile( )

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    Copying and Transforming Images
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    clone( )

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    copy( )

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    copyMerge( )

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    copyMergeGray( )

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    copyResized( )

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    copyResampled( )

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    copyRotate90( ), copyRotate180( ), copyRotate270( )

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    flipHorizontal( ), flipVertical( ), rotate180( )

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    Image Drawing and Manipulation Methods
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    arc( )

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    fill( )

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    filledPolygon( )

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    filledRectangle( )

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    fillToBorder( )

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    line( )

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    polygon( )

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    rectangle( )

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    Strings and Fonts
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    char( )

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    charUp( )

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    nchars( )

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    offset( )

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    string( )

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    stringUp( )

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    stringFT( )

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    width( ), height( )

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    Polygon Methods
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    addPt( )

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    bounds( )

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    deletePt( )

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    getPt( )

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    length( )

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    map( )

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    offset( )

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    scale( )

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    setPt( )

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    toPt( )

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    transform( )

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    vertices( )

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    3. Graphics Scripting with Image::Magick
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    What Is ImageMagick?

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    Using Image::Magick

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    Sample Image::Magick Applications

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    Reading and Writing Images
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    Read( )

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    Write( )

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    BlobToImage( ), ImageToBlob( )

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    Retrieving and Setting File Information
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    Comment( )

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    Ping( )

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    QueryFormat( )

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    Signature( )

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    Sizing and Transforming Images
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    Chop( )

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    Crop( )

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    Flip( )

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    Flop( )

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    Magnify( )

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    Minify( )

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    Resize( )

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    Roll( )

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    Rotate( )

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    Sample( )

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    Scale( )

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    Shear( )

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    Trim( )

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    Zoom( )

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    Copying and Composing Images
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    Append( )

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    Clone( )

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    Composite( )

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    Montage( )

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    Color and Transparency
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    Channel( )

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    Gamma( )

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    Map( )

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    MatteFloodfill( )

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    Profile( )

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    Quantize( )

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    QueryColor( )

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    Segment( )

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    Transparent( )

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    Annotation and Drawing
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    Annotate( )

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    ColorFloodfill( )

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    Draw( )

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    Label( )

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    QueryFont( )

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    QueryFontMetrics( )

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    Filters and Effects
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    AddNoise( )

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    Average( )

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    Blur( )

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    Border( )

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    Charcoal( )

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    Colorize( )

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    Contrast( )

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    Convolve( )

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    CycleColormap( )

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    Despeckle( )

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    Edge( )

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    Emboss( )

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    Enhance( )

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    Equalize( )

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    Frame( )

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    Implode( )

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    MedianFilter( )

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    Modulate( )

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    Mogrify( )

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    MogrifyRegion( )

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    Negate( )

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    Normalize( )

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    OilPaint( )

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    Opaque( )

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    Raise( )

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    ReduceNoise( )

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    Shade( )

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    Sharpen( )

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    Solarize( )

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    Spread( )

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    Swirl( )

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    Texture( )

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    Threshold( )

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    Wave( )

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    4. Charts and Graphs with GD::Graph
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    Let’s Make Some Graphs!

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    A Sample GD::Graph Application

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    GD::Graph Methods
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    gd( )

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    new( )

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    plot( )

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    can_do_ttf( )

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    get( )

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    get_hotspot( )

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    set( )

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    set_label_font( ), set_value_font( )

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    set_legend( )

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    set_legend_font( )

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    set_text_clr( )

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    set_title_font( )

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    set_x_label_font( ), set_y_label_font( ), set_x_axis_font( ), set_y_axis_font( )

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    Attributes of GD::Graph Objects

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    Colors and Fonts in GD::Graph
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    colour_list

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    hex2rgb

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    rgb2hex

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    read_rgb

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    sorted_colour_list

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    5. Scripting the Gimp with Perl
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    Getting and Installing the Gimp

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    Writing Gimp Plug-ins in Perl

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    Your First Gimp Script

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    Object-Oriented Versus Procedural Scripting

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    Adding New Features to the Gimp

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    Standalone Scripts

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    II. Vector Images and Animations

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    6. SVG: The Scalable Vector Graphics Format
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    SVG Document Structure

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    The Basic SVG Tags

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    7. Creating SVG with Perl
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    A Slide-Show Presentation

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    SVG Animation

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    Creating a Bouncing Ball

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    SVG Scripting with JavaScript

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    Using Unicode Text in SVG Images

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    Transformation with XSLT and Perl

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    8. SWF: The Flash File Format
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    The History of Flash and SWF

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    The Format and Function of SWF Files

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    Anatomy of a Tag

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    Parsing an SWF File with Perl

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    9. Using Ming
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    Installation

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    Overview of the Perl Interface

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    The Astral Trespassers Game

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    The SWF Module
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    setScale( )

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    setVersion( )

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    The SWF::Movie Module
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    add( )

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    addAction( )

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    labelFrame( )

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    new( )

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    nextFrame( )

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    output( )

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    remove( )

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    save( )

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    setBackground( )

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    setDimension( )

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    setFrames( )

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    setRate( )

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    setSoundStream( )

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    The SWF::Sprite (or SWF::MovieClip) Module

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    The SWF::DisplayItem Module
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    move( )

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    moveTo( )

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    remove( )

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    rotate( )

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    rotateTo( )

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    scale( )

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    scaleTo( )

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    setColorAdd( )

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    setColorMult( )

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    setDepth( )

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    setName( )

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    setRatio( )

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    skewX( ), skewY( )

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    skewXTo( ), skewYTo( )

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    The SWF::Shape Module
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    addFill( )

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    drawCurveTo( )

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    drawCurve( )

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    drawCircle( )

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    drawFontGlyph( )

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    drawLine( )

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    drawLineTo( )

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    movePenTo( )

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    movePen( )

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    new( )

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    setLeftFill( ), setRightFill( )

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    setLineStyle( )

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    The SWF::Button Module
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    addShape( )

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    new( )

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    setAction( )

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    setHit( )

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    setDown( )

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    setOver( )

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    setUp( )

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    The SWF::Bitmap Module
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    getHeight( )

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    getWidth( )

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    new( )

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    The SWF::Text Module
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    addString( )

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    getStringWidth( )

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    moveTo( )

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    new( )

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    setColor( )

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    setFont( )

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    setHeight( )

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    setSpacing( )

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    The SWF::TextField Module
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    addString( )

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    align( )

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    new( )

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    setBounds( )

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    setColor( )

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    setFont( )

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    setHeight( )

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    setIndentation( )

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    setLineSpacing( )

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    setMargin( ), setLeftMargin( ), setRightMargin( )

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    setName( )

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    The SWF::Font Module
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    new( )

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    The SWF::Fill Module
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    moveTo( )

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    rotateTo( )

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    scaleTo( )

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    skewXTo( ), skewYTo( )

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    The SWF::Gradient Module
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    addEntry( )

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    new( )

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    The SWF::Morph Module
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    getShape1( )

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    getShape2( )

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    new( )

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    The SWF::Sound Module
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    new( )

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    The SWF::Action Module
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    new( )

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    SWF Recipes

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    III. Documents and Printing

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    10. Printing with Postscript and PDF
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    PostScript in a Nutshell

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    Portable Document Format (PDF)

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    References

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    11. Using the PostScript Modules
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    Creating PostScript from a Web Interface

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    The PostScript::TextBlock Module
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    new( )

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    addText( )

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    numElements( )

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    Write( )

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    The PostScript::Document Module
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    new( )

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    addText( )

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    addHeader( )

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    addFooter( )

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    Write( )

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    The PostScript::Elements Module
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    new( )

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    addArc( )

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    addBox( )

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    addEPS( )

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    addLine( )

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    Write( )

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    Other PostScript Modules

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    12. Creating PDF Documents with Perl
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    Introduction to PDF::API2

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    Creating Address Labels

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    Adding to Existing PDF Files

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    PDF::API2 Reference
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    clonepage( )

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    corefont( )

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    end( )

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    image( )

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    imagemask( )

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    importpage( )

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    info( )

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    mediabox( )

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    new( )

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    open( )

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    openpage( )

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    outlines( )

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    page( )

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    pages( )

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    pdfimage( )

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    psfont( )

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    saveas( )

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    stringify( )

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    ttfont( )

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    update( )

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    PDF::API2::Page
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    artbox( )

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    bleedbox( )

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    cropbox( )

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    gfx( )

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    hybrid( )

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    mediabox( )

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    text( )

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    trimbox( )

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    PDF::API2::Content
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    compress( )

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    restore( )

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    save( )

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    fillcolor( )

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    flatness( )

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    linecap( )

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    linedash( )

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    linejoin( )

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    linewidth( )

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    rotate( )

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    scale( )

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    skew( )

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    strokecolor( )

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    transform( )

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    translate( )

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    PDF::API2::Gfx
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    arc( )

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    circle( )

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    clip( )

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    close( )

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    curve( )

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    ellipse( )

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    endpath( )

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    fill( )

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    fillstroke( )

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    image( )

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    line( )

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    move( )

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    poly( )

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    rect( )

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    rectxy( )

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    stroke( )

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    PDF::API2::Text
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    charspace( )

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    cr( )

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    font( )

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    hspace( )

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    lead( )

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    nl( )

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    text( )

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    text_center( )

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    textln( )

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    text_right( )

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    text_utf8( )

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    wordspace( )

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    PDF::API2::Outline
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    dest( )

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    outline( )

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    title( )

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    References

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    IV. Appendixes

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    A. Serving Graphics on the Web
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    The Server and CGI

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    Web Graphics and the Browser

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    Presenting Images in HTML

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    References

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    B. Gimp Reference
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    The Gimp::Fu register( ) Method

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    The Gimp Interface

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    C. Image::Magick File Formats

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    D. ActionScript Reference
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    Operators and Control Structures

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    Actions, Functions, and Properties

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    Objects

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    Index

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    About the Author

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    Colophon

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    Copyright

    Extras

    The publisher has provided additional content related to this title.


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