The Linux Cookbook, 2nd Edition is your guide to getting the most out of Linux. Organized by general task (such as working with text, managing files, and manipulating graphics), each section contains a series of step-by-step recipes that help you to get your work done quickly and efficiently, most often from the command line. Nearly 50 percent larger than the first edition, this new edition includes hundreds of new recipes as well as new sections on package management
In this chapter you will learn: To understand graphics contexts and graphics objects; to manipulate colors; to manipulate fonts; to use methods of class Graphics to draw lines, rectangles, rectangles with rounded corners, three-dimensional rectangles, ovals, arcs and polygons; to use methods of class Graphics2D from the Java 2D API to draw lines, rectangles, rectangles with rounded corners, ellipses, arcs and general paths.
Just as the camera is no longer relegated to the elite or industry professionals, Photoshop is no longer
considered the tool of graphic designers alone. Whether it is used to scan photographs, paint a
landscape, apply effects to text, create Web pages, or alter images, the application enables all users to
accomplish one common feat: to produce professional-quality images in virtually any digital format.
You may be surprised at how many people outside of the design industry are aware of and have even used
Modern digital technology has made it possible to manipulate multi-dimensional
signals with systems that range from simple digital circuits to advanced parallel
computers. The goal of this manipulation can be divided into three categories...
MIDAS/Civil is the ultimate Integrated Civil Engineering Solution for designing
bridges and general civil structures. It retains construction stage analysis
capabilities for Prestressed/Post-tensioned concrete, Suspension, Cable Stayed,
Specialty and Conventional bridges and Heat of hydration.MIDAS/Civil, developed in the object-oriented programming language Visual
C++, fully exploits the advantages and the characteristics of the 32bit Windows
environment for technical computations.
Photoshop is one of the most commonly used tools in the web designer’ s arsenal. From the prepar
ation of initial design comps to generating optimized graphics for a web page, most web designers
rely heavily on this powerful program.
In this introductory chapter , I’ll cover some of the basic tools and tasks that we’ll draw on in later
chapters. I’ll also share some of the shortcuts and time-savers that I frequently use.
Chapter 12 demonstrated how to create simple windows and display basic shapes: rectangle, circle, triangle, and ellipse. It showed how to manipulate such shapes: change colors and line style, add text, etc. Chapter 13 shows how these shapes and operations are implemented, and shows a few more examples. In Chapter 12, we were basically tool users; here we become tool builders.
After studying this chapter you will be able to understand: The design principles of graphical user interfaces (GUIs), to build GUIs and handle events generated by user interactions with GUIs, to understand the packages containing GUI components, event-handling classes and interfaces, to create and manipulate buttons, labels, lists, text fields and panels, to handle mouse events and keyboard events, to use layout managers to arrange GUI components.
Operating Systems interpret user commands and instructions (like typing on the
keyboard or clicking with the mouse) and send requests to the proper application or
device. An OS not only provides a user interface (text or graphic) to
access/organize/manipulate/store data, but can also provide security and
multitasking capabilities. Generally the OS is made up of a few core files with
additional files for extended functionality and backward capability.
Two of the most important functions for signal processing are not in the Signal Processing Toolbox at all, but are built-in MATLAB functions: • filter applies a digital filter to a data sequence. • fft calculates the discrete Fourier transform of a sequence. The operations these functions perform are the main computational workhorses of classical signal processing. Both are described in this chapter.
GraphicS and interaction
Part II represents the largest section of the book, spanning Chapter 3 through Chapter 9. This part covers many significant features that distinguish ActionScript 3.0 from prior versions. It focuses on graphics and interactions and includes the new event model and display list. Chapter 3 is a discussion of properties, events, and methods—the items responsible for manipulating just about anything in Flash. Chapter 4 goes on to explain the display list, a great new way to display visual assets in Flash.
Teleoperation and Telerobotics
25.1 25.2 25.3 25.4 25.5 25.6 25.7 Introduction Hand Controllers
Control Handles • Control Input Devices • Universal Force-Reﬂecting Hand Controller (FRHC)
Antal K. Bejczy
California Institute of Technology
FRHC Control System ATOP Computer Graphics ATOP Control Experiments Anthropomorphic Telerobotics New Trends in Applications
In a general sense, teleoperator devices enable human operators to remotely perform mechanical actions usually performed by the human arm and hand.
SIGNAL-FLOW GRAPHS AND APPLICATIONS
A signal-¯ow graph is a graphical means of portraying the relationship among the variables of a set of linear algebraic equations. S. J. Mason originally introduced it to represent the cause-and-effect of linear systems. Associated terms are de®ned in this chapter along with the procedure to draw the signal-¯ow graph for a given set of algebraic equations. Further, signal-¯ow graphs of microwave networks are obtained in terms of their S-parameters and associated re¯ection coef®cients.
MATLAB® and the Financial Toolbox provide a complete integrated computing
environment for financial analysis and engineering. With 122 financial
functions, including 42 functions for manipulating dates and time, the toolbox
has everything you need to perform mathematical and statistical analysis of
financial data and display the results with presentation-quality graphics. You
can quickly ask, visualize, and answer complicated questions
The Graphics Class
Using Bitmap Fills and Lines
In addition to applying gradients to fills and lines, you can use bitmaps to decorate your drawing’s fills and lines. Both the beginBitmapFill() and lineBitmapStyle() methods we cover in this section use instances of the BitmapData class. This class handles pixel color and alpha data and allows low-level manipulation of bitmaps. Conveniently, BitmapData is also the data type of bitmaps instantiated from the Flash Professional library using a linkage class.
Image processing has moved into the mainstream, not only of the engineering world, but of society in general. Personal computers are now capable of handling large graphics and images with ease, and fast networks and modems transfer images in a fraction of the time required just a few years ago. Image manipulation software is a common item on PCs, and CD-ROMs ﬁlled with images and multimedia databases are standard fare in the realm of electronic publishing. Furthermore, the development of areas such as data...
AutoIt is becoming increasingly popular in the system administration field as a tool for automating administrative tasks. Although this is one of its more popular uses, you can use AutoIt to automate anything in a Windows environment. This powerful scripting language can run any program and manipulate keyboard and mouse input. With its RunAs support, administrators can perform unattended installations and configuration changes using embedded administrative privileges.
This guide teaches you the foundations of the AutoIt v3 language.
Volume 6B, Motif Reference Manual, is a complete programmer’s reference for the Motif toolkit. The Motif toolkit provides a complete set of widgets, such as buttons, scroll bars, menus, and dialog boxes, for developing graphical user interfaces. It also includes a library of functions for creating and manipulating those widgets. The second edition of the Motif Reference Manual covers Motif 2.1, the latest release of Motif. This book includes
The table in Figure 4 summarizes the models discussed above. These components provide
a starting point for our research. In fact, there are too many to test within the scope of this
project, so some choices must be made. The main consideration is that some properties, such
as complexity, dominance (providing a focal point), and grouping, may lend themselves more
easily to the visualization environment than others. A secondary consideration is the techniques
for manipulating the chosen properties. Section 3 surveys aesthetic techniques that have been
developed in computer graphics....