Reverse engineering legacy code for finite element field computation in magnetics

Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2010-05-09 DOI:10.1109/CEFC.2010.5481490

T. Arudchelvam, J. Wijayakulasooriya, S. Hoole

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Abstract

The development of code for finite elements-based field computation has been going on at a pace since the 1970s, yielding code that was not put through the formal software lifecycle. As a result, today we have legacy code running into millions of lines, implemented without planning and not using proper state-of-the-art software design tools. It is necessary to redo this code to exploit object oriented facilities and make corrections or run on the web in Java. Object oriented code's principal advantage is reusability. It is ideal for describing autonomous agents so that values inside a method are private unless otherwise so provided — that is encapsulation makes programming neat and less error-prone in unexpected situations. Recent advances in software make such reverse engineering/reengineering of this code into object oriented form possible. In this paper we reverse engineer legacy code in FORTRAN written decades ago for the computation of magnetic fields by the finite element method into the modern languages of Java and C++.

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逆向工程遗留代码有限元场计算在磁学

自20世纪70年代以来，基于有限元的场计算代码的开发一直在以一定的速度进行，产生的代码没有经过正式的软件生命周期。因此，今天我们的遗留代码运行到数百万行，在没有计划的情况下实现，并且没有使用适当的最先进的软件设计工具。有必要重做这段代码来利用面向对象的功能，并在Java中进行修正或在web上运行。面向对象代码的主要优点是可重用性。它是描述自治代理的理想选择，这样方法中的值是私有的，除非另有规定——也就是说，封装使编程简洁，在意外情况下不易出错。软件的最新进展使得这种逆向工程/再工程代码变成面向对象的形式成为可能。在本文中，我们将几十年前用FORTRAN编写的用于用有限元法计算磁场的遗留代码逆向工程到现代语言Java和c++中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation

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