基于MFC的ObjectARX应用程序开发

从ObjectARX和MFC的应用特点出发,介绍了基于动态链接MFC库开发ARX应用程序的基本原理.通过实例,论述了MFC与ObjectARX相结合进行AutoCAD二次开发的具体方法,说明了MFC与ObjectARX相结合是深入开发AutoCAD的有效途径.     

自绘按钮,显示幻灯片

随着AutoCAD R14版的发布,其Windows的用户操作界面,强大的功能,受到广大用户的好评。同时,其为用户提供了强大的应用软件开发工具:VisualLISP、VBA、ADS、ObjectARX。其中ObjectARX编程环境包括大量C++库,允许用户开发AutoCAD应用程序,扩充AutoCAD类和协议,以及创建与内部AutoCAD命令一样操作的新命令,可谓功能强劲,同时它还是免费的。另外,ObjectARX还提供了与MFC的接口,使我们可以很方便利用Visual C++进行ARX的开发。利用Visual C++,我们就可以抛开以前令人烦恼的编写DCL文件,实现更Window化的操作界     

基于ObjectARX的无模式标签对话框的实现

在利用ObjectARX开发AutoCAD2000环境下的参数化图形设计软件过程中经常需要开发无模式标签对话框。文章讨论了利用ObjectARX提供的模式标签对话框类实现了无模式标签对话框,其功能与MFC下开发的无模式标签对话框相比,能更方便地调整对话框轮廓大小,能扩展标签个数,能记忆对话框数据,能在主对话框中任意插入控件。     

利用ObjectARX开发基于AutoCAD的法兰盘设计

本文讨论了在VisualC 60的集成开发环境下,结合ObjectARX和MFC开发AutoCAD2002应用程序的设计技术和方法,针对特定零件族的高效率绘制进行探讨,并围绕法兰盘设计绘制实例详细阐述了此CAD二次开发技术。     

基于ObjectARX的无模式标签对话框的实现

在利用ObjectARX开发AutoCAD2000环境下的参数化图形设计软件过程中经济需要开发无模式标签对话框。文章讨论了利用ObjectARX提供的模式标签对话框类实现了无模式标签对话框,其功能与MFC下开发的无模式标答对话框相比,能更方便地调整对话框轮廓大小、扩展标签个数、记忆对话框数据、在主对话框中任意插入控件。     

ObjectARX中结合MFC开发AutoCAD ARX应用程序

为解决热处理过程数值模拟中遇到的TTT曲线矢量化及存贮问题,本文讨论了在VisualC 6.0环境下使用MFC和ObjectARX开发AutoCAD ARX应用程序的方法和步骤。文章围绕实例,详细说明了ARX应用程序的设计和具体实现,对计算机辅助工艺设计有一定借鉴作用。     

基于COM与ARX的曲线光顺性研究

在AutoCAD2000开发平台上,对VC＋＋6．0的MFC为编程语言,采用基于COM的ActiveX automation技术,结合ObjectARX开发环境的ARX技术,建立工程应用的基本框架,对AutoCAD图形数据库的管理及外部数据库的操作,文章给出了详细的研究方案,采用整体光顺方法,以应变能最小,曲率变化均匀为准则,以控制点为未知量,实现曲线的光顺,给出光顺算法的数学模型。     

用ObjectARX进行基于AutoCAD平台的二次开发

新一代AutoCAD二次开发工具ObjectARX的工作机制和开发原理,针对一个ObjectARX的简单例子,说明了在VisualC＋＋５．０环境下开发ObjectARX应用程序的方法。     

用ObjectARX进行基于AutoCAD平台的二次开发

介绍新一代AutoCAD二次开发工具ObjectARX的工作机制和开发原理,并围绕一个ObjectARX的简单例子,说明在V C 5.0环境下ObjectARX应用程序的开发方法。     

基于ObjectARX的专用件参数化设计研究*

在分析产品专用件设计特点的基础上,提出专用件参数化设计的思想。分析ObjectARX开发工具的特点及其原理,并论述AutoCAD软件的二次开发过程。建立AutoCAD开发平台上应用ObjectARX进行专用件参数化设计的系统原型,并结合摩托车刹车轮毂论述了系统开发的过程。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate