MapGIS6.1向ArcGIS8.1的数据转换

深入讨论了MapGIS和ArcGIS两种GIS软件的数据格式,并详细介绍了由MapGIS格式向ArcGIS格式的数据转换过程.MapGIS和ArcGIS是应用较为广泛的地理信息系统软件,二者都拥有很大的用户群体.但是它们各自都有自己的数据格式,实现这两个系列数据格式的数据共享是十分必要的.在数据转换时,首先将MapGIS的数据在MapGIS中转换为E00格式,然后在ArcGIS的工具包ArcToolBox中选择转换工具中的Import From Interchange File,将E00数据转换为Coverage格式,转换后对于多边形数据需要在Arc中进行拓扑重建,然后由Coverage格式就可以转换成ArcGIS的任意格式.     

ArcGIS与MapGIS空间数据转换技术与方法

ArcGIS的Geodatabase数据存放格式与MapGIS的Geodatabase数据存放格式各不相同，本文介绍两者之间的数据转换，并将其应用于国土资源地籍数据的转换，从而达到数据资源共享。     

基于AE的Shapefile和Excel之间数据转换的方法

多源、多格式地理数据互操作与共享是GIS开发与和应用的关键问题之一.Shapefile是ESRI发布的通用地理数据格式,而Excel作为目前最为通用的办公软件之一,其数据格式早已被大众所接受并广泛使用.介绍一种基于ArcGIS Engine的Shpefile与Excel数据转换方法,阐述了数据格式转换流程及转换接口设计,并用Java现实了该方法.该方法已应用于城镇土地定级估价信息系统中,实现了大批量shapefile格式数据与Excel格式数据转换.     

Excel单元格格式转换实用技巧

了解Excel单元格数据格式的含义及数据格式转换的方法,并利用教据格式转换功能解决在实际工作中遇到的Excel文本型数据转换为数值型数据和文本型数据转换为时间型数据等问题。     

基于多平台数据文件格式转换过程的设计

针对基于多种数据平台建立的数据格式,给出了如何将一种数据格式的文件转换成另一种格式转换思想,并利用Visu-al Basic设计了将同格式数据库数据转换成Oracle数据库数据的具体转换过程.     

地形数据格式转换及其在视景仿真中应用

该文开发了一个地形数据格式转换工具,它能将．ＤＣ格式的图形数据转换为．Ｃ格式的图形数据,界面友好,应用方便。已在多种模拟器视景仿真中得到应用。     

基于ArcGIS软件的数据扫描矢量化与数据转换

扫描矢量化是对各种类型的数字工作底图如纸基地图等进行矢量化处理,扫描矢量化工作是数据处理、数据转换的基础,本文通过南方Cass软件实现了地图扫描矢量化工作;数据转换就是把不同格式的空间数据转换成所用地理信息系统平台使用的格式,是对数据进一步处理与分析的前提。本实验通过应用ArcGIS软件实现了数据的转换,为避免直接转换存在的问题,本实验采用的方法是在ARCMAP中读入转换后的数据,然后将各类要素分别筛选出,再生成新的要素层。     

信息共享平台中异构数据的转换

要解决信息孤岛的问题实现信息共享,首要的工作就是完成各种异构数据之间的转换,当然目前已存在的数据格式多种多样,不可能一对一的转换,因此要寻找一种统一的格式,各种数据都转成该统一格式,然后进行数据交换。作者针对异构关系数据库之间的数据转换提出了解决方案,并给出了具体的实现。     

数据转移：方法与实例

企业进行业务重组,信息系统进行升级或重新开发,其成功的关键因素之一,就是如何把企业信息数据从旧系统格式转换到新系统格式。本文首先概述了数据格式的几种常用类型,然后详细地讨论了不同数据格式之间的几种转换方法,最后,本文给出了几个数据转换的实例。     

CAD数据与MAPGIS数据格式共享研究

本文从CAD和MAPGIS本身的数据接口的特点和数据交换的方式着手,探讨了将CAD的DWG格式数据和MAPGIS的数据格式进行相互转换的方法和步骤,在实现两种格式的数据共享的同时,也使得相关数据的利用率得到了提高。     

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.     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

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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