The Research Of The Visualization System Of Engineering Data

With the rapid development of information technology and further requirement for engineering precision, the engineering data that users deal with is increasing constantly. To grasp useful information in a vast amount of information and provide the data to the engineer after processing it with visualization plays the decisive role in improving the efficiency of project and ensuring the quality of it. The visualization of engineering data, a kind of technology, is a very important link in the engineering application in the modern world. By making use of image-processing technology, it converts the engineering data into a figure or an image that is displayed on a screen. The writer uses object oriental modeling, building of layered system and distributed data transform to study and build this system. In this system, a general process of integrate dada collection, data processing and data visualization is provided to users to help them grasp useful information, find the hidden information lodged in the engineering data and improve the efficiency of handling data. Moreover, users can extend relevant modules to use the whole system to visualize data instead of modifying it.The first part is about a set of algorithm. According to the visualization system that is to be exploited, the writer advances a set of algorithm. By reinstalling data-sampling interval, users can compress the engineering data directly. Therefore, the engineering data decreases obviously and can be used in the visualization system directly. In this way, the efficiency is improved and the burden is lightened.The second part introduces how to use Lex and Yacc to analyses programs. In the second part, the writer explains how to use XML to indicate and convert data. It is a very convenient way to manage data.Finally, This paper introduces the construction design of the visualization system and the procedure design of XML data。In this part, the writer builds a complete system by use of VC++.NET and OpenGL.