Java Doc for ChartUtilities.java in  » Chart » jfreechart » org » jfree » chart » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Chart » jfreechart » org.jfree.chart   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.jfree.chart.ChartUtilities ChartUtilities abstract public class ChartUtilities (Code) A collection of utility methods for JFreeChart. Includes methods for converting charts to image formats (PNG and JPEG) plus creating simple HTML image maps. See Also:   ImageMapUtilities Method Summary public static  byte[] encodeAsPNG(BufferedImage image)      Encodes a BufferedImage to PNG format. Parameters:   image - the image (null not permitted). public static  byte[] encodeAsPNG(BufferedImage image, boolean encodeAlpha, int compression)      Encodes a BufferedImage to PNG format. Parameters:   image - the image (null not permitted). Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the PNG compression level (0-9). public static  String getImageMap(String name, ChartRenderingInfo info)      Creates an HTML image map. public static  String getImageMap(String name, ChartRenderingInfo info, ToolTipTagFragmentGenerator toolTipTagFragmentGenerator, URLTagFragmentGenerator urlTagFragmentGenerator)      Creates an HTML image map. public static  void saveChartAsJPEG(File file, JFreeChart chart, int width, int height)      Saves a chart to a file in JPEG format. public static  void saveChartAsJPEG(File file, float quality, JFreeChart chart, int width, int height)      Saves a chart to a file in JPEG format. public static  void saveChartAsJPEG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Saves a chart to a file in JPEG format. public static  void saveChartAsJPEG(File file, float quality, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Saves a chart to a file in JPEG format. public static  void saveChartAsPNG(File file, JFreeChart chart, int width, int height)      Saves a chart to the specified file in PNG format. public static  void saveChartAsPNG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Saves a chart to a file in PNG format. public static  void saveChartAsPNG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info, boolean encodeAlpha, int compression)      Saves a chart to a file in PNG format. public static  void writeBufferedImageAsJPEG(OutputStream out, BufferedImage image)      Writes a BufferedImage to an output stream in JPEG format. public static  void writeBufferedImageAsJPEG(OutputStream out, float quality, BufferedImage image)      Writes a BufferedImage to an output stream in JPEG format. public static  void writeBufferedImageAsPNG(OutputStream out, BufferedImage image)      Writes a BufferedImage to an output stream in PNG format. public static  void writeBufferedImageAsPNG(OutputStream out, BufferedImage image, boolean encodeAlpha, int compression)      Writes a BufferedImage to an output stream in PNG format. public static  void writeChartAsJPEG(OutputStream out, JFreeChart chart, int width, int height)      Writes a chart to an output stream in JPEG format. public static  void writeChartAsJPEG(OutputStream out, float quality, JFreeChart chart, int width, int height)      Writes a chart to an output stream in JPEG format. public static  void writeChartAsJPEG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Writes a chart to an output stream in JPEG format. public static  void writeChartAsJPEG(OutputStream out, float quality, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Writes a chart to an output stream in JPEG format. public static  void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height)      Writes a chart to an output stream in PNG format. public static  void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, boolean encodeAlpha, int compression)      Writes a chart to an output stream in PNG format. public static  void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info)      Writes a chart to an output stream in PNG format. public static  void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info, boolean encodeAlpha, int compression)      Writes a chart to an output stream in PNG format. public static  void writeImageMap(PrintWriter writer, String name, ChartRenderingInfo info, boolean useOverLibForToolTips)      Writes an image map to an output stream. public static  void writeImageMap(PrintWriter writer, String name, ChartRenderingInfo info, ToolTipTagFragmentGenerator toolTipTagFragmentGenerator, URLTagFragmentGenerator urlTagFragmentGenerator)      Writes an image map to the specified writer. public static  void writeScaledChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, int widthScaleFactor, int heightScaleFactor)      Writes a scaled version of a chart to an output stream in PNG format. Method Detail encodeAsPNG public static byte[] encodeAsPNG(BufferedImage image) throws IOException(Code) Encodes a BufferedImage to PNG format. Parameters:   image - the image (null not permitted). A byte array in PNG format. throws:   IOException - if there is an I/O problem. encodeAsPNG public static byte[] encodeAsPNG(BufferedImage image, boolean encodeAlpha, int compression) throws IOException(Code) Encodes a BufferedImage to PNG format. Parameters:   image - the image (null not permitted). Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the PNG compression level (0-9). The byte array in PNG format. throws:   IOException - if there is an I/O problem. getImageMap public static String getImageMap(String name, ChartRenderingInfo info)(Code) Creates an HTML image map. This method maps to ImageMapUtilities.getImageMap(StringChartRenderingInfoToolTipTagFragmentGeneratorURLTagFragmentGenerator) , using default generators. Parameters:   name - the map name (null not permitted). Parameters:   info - the chart rendering info (null not permitted). The map tag. getImageMap public static String getImageMap(String name, ChartRenderingInfo info, ToolTipTagFragmentGenerator toolTipTagFragmentGenerator, URLTagFragmentGenerator urlTagFragmentGenerator)(Code) Creates an HTML image map. This method maps directly to ImageMapUtilities.getImageMap(StringChartRenderingInfoToolTipTagFragmentGeneratorURLTagFragmentGenerator) . Parameters:   name - the map name (null not permitted). Parameters:   info - the chart rendering info (null not permitted). Parameters:   toolTipTagFragmentGenerator - a generator for the HTML fragmentthat will contain the tooltip text (null not permitted if info contains tooltip information). Parameters:   urlTagFragmentGenerator - a generator for the HTML fragment thatwill contain the URL reference (null not permitted if info contains URLs). The map tag. saveChartAsJPEG public static void saveChartAsJPEG(File file, JFreeChart chart, int width, int height) throws IOException(Code) Saves a chart to a file in JPEG format. Parameters:   file - the file (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. saveChartAsJPEG public static void saveChartAsJPEG(File file, float quality, JFreeChart chart, int width, int height) throws IOException(Code) Saves a chart to a file in JPEG format. Parameters:   file - the file (null not permitted). Parameters:   quality - the JPEG quality setting. Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. saveChartAsJPEG public static void saveChartAsJPEG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Saves a chart to a file in JPEG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   file - the file name (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. saveChartAsJPEG public static void saveChartAsJPEG(File file, float quality, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Saves a chart to a file in JPEG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   file - the file name (null not permitted). Parameters:   quality - the quality setting. Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. saveChartAsPNG public static void saveChartAsPNG(File file, JFreeChart chart, int width, int height) throws IOException(Code) Saves a chart to the specified file in PNG format. Parameters:   file - the file name (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. saveChartAsPNG public static void saveChartAsPNG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Saves a chart to a file in PNG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   file - the file (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. saveChartAsPNG public static void saveChartAsPNG(File file, JFreeChart chart, int width, int height, ChartRenderingInfo info, boolean encodeAlpha, int compression) throws IOException(Code) Saves a chart to a file in PNG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   file - the file (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the PNG compression level (0-9). throws:   IOException - if there are any I/O errors. writeBufferedImageAsJPEG public static void writeBufferedImageAsJPEG(OutputStream out, BufferedImage image) throws IOException(Code) Writes a BufferedImage to an output stream in JPEG format. Parameters:   out - the output stream (null not permitted). Parameters:   image - the image (null not permitted). throws:   IOException - if there are any I/O errors. writeBufferedImageAsJPEG public static void writeBufferedImageAsJPEG(OutputStream out, float quality, BufferedImage image) throws IOException(Code) Writes a BufferedImage to an output stream in JPEG format. Parameters:   out - the output stream (null not permitted). Parameters:   quality - the image quality (0.0f to 1.0f). Parameters:   image - the image (null not permitted). throws:   IOException - if there are any I/O errors. writeBufferedImageAsPNG public static void writeBufferedImageAsPNG(OutputStream out, BufferedImage image) throws IOException(Code) Writes a BufferedImage to an output stream in PNG format. Parameters:   out - the output stream (null not permitted). Parameters:   image - the image (null not permitted). throws:   IOException - if there are any I/O errors. writeBufferedImageAsPNG public static void writeBufferedImageAsPNG(OutputStream out, BufferedImage image, boolean encodeAlpha, int compression) throws IOException(Code) Writes a BufferedImage to an output stream in PNG format. Parameters:   out - the output stream (null not permitted). Parameters:   image - the image (null not permitted). Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the compression level (0-9). throws:   IOException - if there are any I/O errors. writeChartAsJPEG public static void writeChartAsJPEG(OutputStream out, JFreeChart chart, int width, int height) throws IOException(Code) Writes a chart to an output stream in JPEG format. Please note that JPEG is a poor format for chart images, use PNG if possible. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. writeChartAsJPEG public static void writeChartAsJPEG(OutputStream out, float quality, JFreeChart chart, int width, int height) throws IOException(Code) Writes a chart to an output stream in JPEG format. Please note that JPEG is a poor format for chart images, use PNG if possible. Parameters:   out - the output stream (null not permitted). Parameters:   quality - the quality setting. Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. writeChartAsJPEG public static void writeChartAsJPEG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Writes a chart to an output stream in JPEG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. writeChartAsJPEG public static void writeChartAsJPEG(OutputStream out, float quality, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Writes a chart to an output stream in JPEG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   out - the output stream (null not permitted). Parameters:   quality - the output quality (0.0f to 1.0f). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. writeChartAsPNG public static void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height) throws IOException(Code) Writes a chart to an output stream in PNG format. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. throws:   IOException - if there are any I/O errors. writeChartAsPNG public static void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, boolean encodeAlpha, int compression) throws IOException(Code) Writes a chart to an output stream in PNG format. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the compression level (0-9). throws:   IOException - if there are any I/O errors. writeChartAsPNG public static void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info) throws IOException(Code) Writes a chart to an output stream in PNG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - the chart rendering info (null permitted). throws:   IOException - if there are any I/O errors. writeChartAsPNG public static void writeChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, ChartRenderingInfo info, boolean encodeAlpha, int compression) throws IOException(Code) Writes a chart to an output stream in PNG format. This method allows you to pass in a ChartRenderingInfo object, to collect information about the chart dimensions/entities. You will need this info if you want to create an HTML image map. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the image width. Parameters:   height - the image height. Parameters:   info - carries back chart rendering info (null permitted). Parameters:   encodeAlpha - encode alpha? Parameters:   compression - the PNG compression level (0-9). throws:   IOException - if there are any I/O errors. writeImageMap public static void writeImageMap(PrintWriter writer, String name, ChartRenderingInfo info, boolean useOverLibForToolTips) throws IOException(Code) Writes an image map to an output stream. Parameters:   writer - the writer (null not permitted). Parameters:   name - the map name (null not permitted). Parameters:   info - the chart rendering info (null not permitted). Parameters:   useOverLibForToolTips - whether to use OverLIB for tooltips(http://www.bosrup.com/web/overlib/). throws:   IOException - if there are any I/O errors. writeImageMap public static void writeImageMap(PrintWriter writer, String name, ChartRenderingInfo info, ToolTipTagFragmentGenerator toolTipTagFragmentGenerator, URLTagFragmentGenerator urlTagFragmentGenerator) throws IOException(Code) Writes an image map to the specified writer. Parameters:   writer - the writer (null not permitted). Parameters:   name - the map name (null not permitted). Parameters:   info - the chart rendering info (null not permitted). Parameters:   toolTipTagFragmentGenerator - a generator for the HTML fragmentthat will contain the tooltip text (null not permitted if info contains tooltip information). Parameters:   urlTagFragmentGenerator - a generator for the HTML fragment thatwill contain the URL reference (null not permitted if info contains URLs). throws:   IOException - if there are any I/O errors. writeScaledChartAsPNG public static void writeScaledChartAsPNG(OutputStream out, JFreeChart chart, int width, int height, int widthScaleFactor, int heightScaleFactor) throws IOException(Code) Writes a scaled version of a chart to an output stream in PNG format. Parameters:   out - the output stream (null not permitted). Parameters:   chart - the chart (null not permitted). Parameters:   width - the unscaled chart width. Parameters:   height - the unscaled chart height. Parameters:   widthScaleFactor - the horizontal scale factor. Parameters:   heightScaleFactor - the vertical scale factor. throws:   IOException - if there are any I/O problems. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)