To get that to work, the graphics environment needs to know the start and end coordinates of the viewport.
要让这成为可能，这个图形环境就需要知道viewport的起点和终点。
Let's start with a graphics environment object and an interface called GraphicsObject implemented by a line class that draws lines.
让我们首先来看一个图形环境对象和一个名为GraphicsObject的接口，它是使用一个line类实现的，功能就是用来画线。
Designing and realization of distributed graphics collaborative editing systems in net environment is discussed in this paper.
本文对网络环境下分布式图形协作编辑系统的设计与实现进行了讨论。
In the multimedia environment, we have graphics and text at the same time, we can also add the photograph, animation, good-quality sound, and full motion video.
环境中，我们可以同时拥有图形和文本，也可以增加图片、动画、高质量的音响和全动录像。
To reflect this reality, we use the following broadened definition: Data consist of facts, text, graphics, images, sound, and video segments that have meaning in the users' environment.
考虑到这种情况，我门使用含义更广泛的定义，数据由在用户环境中有意义的事实、文本、图形、图像、声音、视频片段等构成。
You can open and edit images in the development environment just as you would in any graphics application.
可以像在任何图形应用程序中一样，在开发环境中打开并编辑图像。
However, the changing office environment also calls for knowledge of electronic records management, spreadsheet design, the design of presentation graphics, even cardiopulmonary resuscitation.
然而，办公室环境的改变还需要管理人员具备电子报表管理、电子制表设计、演示图标设计甚至心肺复苏急救等知识。
Virtual environment walkthrough systems traditionally use computer graphics to model and render virtual environments.
虚拟环境漫游系统，传统上是采用计算机图形学原理建模来绘制虚拟场景。
This paper introduces an effective method which makes the graphics of industry process control in VB development environment.
介绍在VB开发环境中自行开发用于制作工控图程序的一种有效方法。
The tools of hand-sketched graphics recognition provide designer with the environment in which designers use head-storms to display their designable works.
草图识别工具提供给设计师一个展现设计思维，开展创造性设计工作的平台，这已经受到了越来越多的重视和研究。
The tools of hand-sketched graphics recognition provide designer with the environment in which designers use head-storms to display their designable works.
草图识别工具提供给设计师一个展现设计思维，开展创造性设计工作的平台，这已经受到了越来越多的重视和研究。
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