Java 2D Graphics (Java Series)

Java 2D Graphics (Java Series)

Language: English

Pages: 368

ISBN: 1565924843

Format: PDF / Kindle (mobi) / ePub

One weakness of Java has been its graphics capabilities. Java 1.0 and 1.1 only included simple primitives for line drawing: lines could only be one pixel wide, they could only be solid, and there wasn't any good way to draw curves. Font management and color management were also weak. Java 2D (collectively called the "2D API") signals a major improvement in Java's graphics capabilities. It covers many of the classes in Java 1.2 that address graphics handling and improves on many weaknesses that were present in the previous versions of Java.The 2D API allows you to produce high-quality, professional images on a screen or printer. Java 2D Graphics describes the 2D API from top to bottom, demonstrating how to set line styles and pattern fills as well as more advanced techniques of image processing and font handling. You'll see how to create and manipulate the three types of graphics objects: shapes, text, and images. Other topics include image data storage, color management, font glyphs, and printing.Java 2D Graphics assumes no prior knowledge of graphics. Chock full of detailed explanations and examples, this book provides beginning Java programmers with a solid foundation in 2D graphics and helps more advanced programmers create and use high-quality images in their applications.Topics covered in the book include:

  • The rendering pipeline
  • Shapes and paths
  • Geometry
  • Painting with solid colors, gradients, and textures
  • Stroking paths, including dashed lines
  • Transformations: translation, rotation, shearing, and scaling
  • Alpha compositing
  • Clipping
  • Rasterizing and antialiasing
  • Fonts and text
  • Font metrics
  • Glyphs
  • Colors and color spaces
  • sRGB and CIEXYZ
  • ICC color profiles
  • Images, image color models, and image data
  • Image processing
  • Image data storage
  • Graphics devices
  • Printing

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Method returns the height of the rectangle. public double getMinX() This method returns the smallest x coordinate of the rectangle. public double getMaxX() This method returns the largest x coordinate of the rectangle. public double getMinY() This method returns the smallest y coordinate of the rectangle. public double getMaxY() This method returns the largest y coordinate of the rectangle. Two methods are provided to examine the center point of the rectangle: public double getCenterX() public.

Graphics2D performs. page 91 Java 2D Graphics Rendering hints are used in one other place: image processing. (See Chapter 10, for the full story.) The image processing operators all accept a RenderingHints object in their constructors. This gives the operator suggestions about whether to give preference to processing speed or quality. Rendering hints are specified using a key and value scheme. You tell Graphics2D that you want a certain key, like KEY_ANTIALIASING, to have a certain value, such.

At once. It is simultaneously to the right of the "e" of "please" and to the right (visually) of first letter of the Arabic word. Figure 7.1. Caret schizophrenia How can the dual personality of a caret be resolved? It's simple — just draw two carets. Suppose the caret is placed after the end of "Please." A primary caret is shown in this location, and a secondary caret is shown at the beginning (the right side) of the Arabic word. Now, if the user types a character, what happens? English.

Abstract Shape getOutline(float x, float y) This method returns a shape representing all of this GlyphVector's glyphs, translated to the point specified by x and y. The translation just applies to the location of the start of the baseline. Each glyph shape is positioned relative to this location. public abstract Shape getGlyphOutline(int glyphIndex) This method returns a Shape that represents a single glyph. Each of the glyphs in a GlyphVector has an associated position: public abstract Point2D.

Have an Image that you have created yourself, you can get a corresponding Graphics2D by calling createGraphics(), as follows: public void drawOnImage(Image i) { Graphics g = i.getGraphics(); // Now draw on the image using g. } This works only for any Image you've created yourself, not for an Image loaded from a file. If you have a BufferedImage (Java 2D's new image class), you can obtain a Graphics2D as follows: public void drawOnBufferedImage(BufferedImage bi) { Graphics2D g2 =.

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