Chapter 13 Computer Graphics 13.1 Introduction To Computer Graphics 13.1.4 User Interfaces The interface between the human and the computer has been radically altered by the use of computer graphics. Consider the electronic office. The figures in this book were produced through just such an interface. A secretary sits at a workstation, rather than at a desk equipped with a typewriter. This user has a pointing device, such as a mouse, that allows him to communicate with the workstation. The display consists of a number of icons that represent the various operations the secretary can perform. For example, there might be an icon of a mailbox that if pointed to and clicked on, causes any electronic-mail messages to appear on the screen. 计算机图形学的应用已经根本改变了人和计算机之间的界面。讨论一下电子 办公室,本书的图是由这样的界面产生的,秘书坐在工作站前,而不是备有 打字机的办公桌前,这一用户有一个指示设备(如鼠标实现他和工作站之间 的交互。显示由许多图符组成,代表秘书可进行的各种操作,例如,有一个 邮箱图符,如果指向并点击它,屏幕上将会显示电子邮件信息 第机 13-10Chapter 13 Computer Graphics 计算机专业英语 13-10 13.1.4 User Interfaces The interface between the human and the computer has been radically altered by the use of computer graphics. Consider the electronic office. The figures in this book were produced through just such an interface. A secretary sits at a workstation, rather than at a desk equipped with a typewriter. This user has a pointing device, such as a mouse, that allows him to communicate with the workstation. The display consists of a number of icons that represent the various operations the secretary can perform. For example, there might be an icon of a mailbox that ,if pointed to and clicked on ,causes any electronic-mail messagesto appear on the screen. 计算机图形学的应用已经根本改变了人和计算机之间的界面。讨论一下电子 办公室，本书的图是由这样的界面产生的，秘书坐在工作站前，而不是备有 打字机的办公桌前，这一用户有一个指示设备(如鼠标)实现他和工作站之间 的交互。显示由许多图符组成，代表秘书可进行的各种操作，例如，有一个 邮箱图符，如果指向并点击它，屏幕上将会显示电子邮件信息. 13.1 Introduction To Computer Graphics