Excel内嵌VBA和COM代码在测量计算中的应用

为了能够解决测量平差计算烦琐复杂和人工编写Cass展点文件容易出错的问题,提出一种在Excel中嵌入VBA和COM代码的方法,来简化测量平差计算且可以自动生成Cass展点文件。首先,使用VC中ATL模板开发角度转换和Cass展点COM模块;其次,在Excel中利用VBA代码调用COM模块来实现平差计算和展点文件的自动生成。在浙江林学院数字植物园的1：500大比例尺基础地形图测绘工作中,利用该方法快速准确地进行了25个点的闭合测量导线平差计算和近1．2万个展点文件的自动生成,计算结果均准确无误。该方法可使测量导线平差计算和Cass展点文件生成变得简单方便高效。图5参15     

基于GIS的灌区水资源管理信息系统研发

针对灌区水利信息化建设的需要,在充分调研和系统分析的基础上,利用Visual Basic6.0与Spermap Objects集成进行GIS的二次开发,初步研发了宝鸡峡灌区水资源管理信息系统.系统采用模块化设计方式,很好地解决了空间与非空间数据的管理,并采用COM组件技术实现农业供需水预测及平衡分析模型与系统的集成.本研究为灌区水资源的管理利用提供了一套行之有效的管理系统,同时也为合理配水提供了依据.     

组件式GIS技术构建的多尺度土壤侵蚀评价模块

土壤侵蚀评价模型与GIS的集成一直是目前研究的热点问题.研究基于ArcGISEngine开发包和组件技术,在VisualBasic中调用ArcObjects组件,通过创建ActiveDLL工程,构建了基于RUSLE和土壤侵蚀评价指数模型的GIS内嵌模块.该模块包括:土壤侵蚀量计算、流域尺度土壤侵蚀评价、小流域尺度土壤侵蚀评价和坡面尺度土壤侵蚀评价四个子模块.研究表明基于ArcGISEngine,以二进制的动态链接库(DLL)表现,开发土壤侵蚀评价模块,能够简化土壤侵蚀评价的计算逻辑,提高工作效率,具有良好的扩充性、灵活性和可操作性,模块化的土壤侵蚀评价指数能更好地应用于土地利用与土壤侵蚀评价相关研究.     

多相流模型组件化研究

针对目前石油工业多相流模型通用化的现状,采用现在流行的组件技术,在Visual Fortran中将多相流模型组件化,着重对组件进行了通用化研究,并以Beggs-Brill模型组件化为实例,着重研究了组件保持相同接口的方法,使所有的模型接口有统一的标准,最后在VC中对Beggs-Brill模型组件进行了调用。研究结果表明,组件化后的多相流模型易于复用和扩展。     

Analysis of I/O Component of ICT Control Software Based COM

To implement the reuse of industrial CT control software, make the product easily maintained and upgraded, the control software of industrial CT based COM is researched. With the characteristics of language irrelevancy, reuse of binary codes, expansion, the industrial CT control software are divided into several components according to the control function of industrial CT, and the I/O component is developed. Better effects and open characteristic are achieved while this component is communicating with the Client program.     

Analysis of Interpolate-compensation Component of Open CNC System Based COM

CNC system is gradually developing toward flexible, component modular and re-configurable of open CNC system's structure. It's beginning a research direction in open CNC system with the software reuse and re-configurable technology. Based on the expound of concepts and characteristics of component technology, open CNC system's characteristics are analyzed based on COM and open CNC system is divided into several components. With the characteristics of binary language irrelevant, thread transparent, re-configurable and normative interface of COM technology, open CNC system's interpolate-compensation component in interpolate-compensation component achieved, interface designed and object created are researched. Better effects are achieved by connecting the interpolate-compensation component with the other CNC components. At the same time, the CNC component's real-time control problem is analyzed.