基于LabVIW的三维曲面绘制.doc

基于LabVIEW的三维曲面绘制 摘 要 LabVIEW是一个具有革命性的图形化开发环境，它内置信号采集、测量分析与数据显示功能，摒弃了传统开发工具的复杂性，从简单的仪器控制、数据采集到过程控制和工业化自动化系统，LabVIEW都得到 了广泛的应用。在LabVIEW开发环境下编写的代码就是G语言代码。LabVIEW功能强大、灵活方便。它与C语言、Pascal语言、BASIC语言等传统编程语言有着诸多相似之处，如相似的数据类型、数据流控制结构，程序调试工具，以及模块化的编程特点等，但是二者又有着不同，LabVIEW使用图形语言（即各种图标、节点、结构框图、连线等）编程，界面形象直观，使用的对象都是测试工程师所熟悉的，因此即使是初学者也能够很快的掌握的。本文介绍了LabVIEW技术的发展历程和编程原理，并用该技术完成了三维曲面绘制模块的设计，该模块可以完成任意三维曲面的的绘制，还可以改变透明度等显示参数，使人们从视觉上对该物体有了更加全面的认识。 关键词：LabVIEW，三维图形，虚拟仪器 LABVIEW-BASED THERR-DIMENSIONAL SURFACE RENDERING ABSTRACT LabVIEW is a revolutionary graphical development environment, he built-in signal acquisition, measurement analysis and data display capabilities, weapons of the complexity of traditional development tools, from simple instrument control, data acquisition to the process control and industrial automation systems, LabVIEW have been widely used. In the LabVIEW development environment is the G code written language code. LabVIEW powerful, flexible and convenient. It is with the C language, Pascal language, BASIC language, and there are many similarities between traditional programming languages, such as similar data types, data flow control structures, debugging tools, and characteristics of modular programming, but they both have different, LabVIEW graphical language (node, block diagram, connections, etc.) programming interface, visual image, test engineers use the objects are familiar, so even beginners can quickly grasp. This article describes the technology development process and LabVIEW programming principles, and use the technology to complete the design of three-dimensional surface rendering module, the module can be completed any three-dimensional surface rendering, change the transparency of display parameters can be changed so that people from the visual objects have a more comprehensive understanding.  KEY WORDS: LabVIEW, Three-dimensional graphics, Virtual Instruments 目　录 前　言 1 第1章 虚拟仪器及LabVIEW的介绍 2 1.1虚拟仪器的概述 2 1.1.1什么是虚拟仪器 2 1