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TH—DAIMS3.0清华图纸自动输入与管理系统 总被引:3,自引:0,他引:3
本文将围绕如何充分利用图纸图象的问题,介绍了TH-DAIMS3.0系统的设计目标、主要功能特点,以及系统中所采用的各种新技术。在TH-DAIMS3.0中,我们用自适应分块二值化技术提高消蓝支污能力,用连通域分类技术进行图文分离,用模式匹配技术识别工程图中的尺寸标注字符,用八方向连通域搜索技术及轮廓跟踪技术拾取曲线,用交互式分类矢量优技术进行矢量化处理,用光机矢量双向混合设计加速交互处理。文章的最后 相似文献
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《CAD/CAM与制造业信息化》1996,(4)
清华图纸自动输入及管理系统TH—DAIMS3.0由清华大学计算机系CAD中心承担的国家“八五”重点科技攻关项目、清华计算机公司CAD开发部承担的国家火炬计划项目—清华图纸自动输入及管理系统,是一个面向图纸复用和图纸档案管理的软件产品。该系统利用图纸扫... 相似文献
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THECADDANDSIMULATIONSYSTEMOFTHENEW-TYPEGEARHongHanyu;GuanRongchangTHECADDANDSIMULATIONSYSTEMOFTHENEW-TYPEGEAR¥HongHanyu;GuanR... 相似文献
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面向多领域的可视化应用开发平台MOVADP 总被引:2,自引:0,他引:2
MOVADP是一个面向多领域的可视化应用开发平台,文中主要介绍了该平台的软件结构和实现技术,MOVADP以数据流机制为核心,采用可视编程技术,为用户开发可视化应用提供了一个文凭交互的模块级图形编程环境,与同类平台相比,MOVADP的特点在于,引入了IFTHEN-ELSE,WHILE-LOOP等控制结构,支持用户构建复杂的可化应用流图;支持“lazyevaluation”命令驱动方式下的流图局部运行 相似文献
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解二维扩散方程的分步分组显式格式 总被引:1,自引:0,他引:1
解二维扩散方程的分步分组显式格式陆金甫,曾光(清华大学应用数学系)FRACTIONALSTEPSGROUPEXPLICITMETHODSFOR2DDIFFUSIONEQUATIONS¥LuJin-fu;ZengGuang(TsinghuaUniver... 相似文献
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ESTIMATING THE CUTTER'S MAXIMUM DIAMETER IN 5-AXIS NC FACE MILLING OF TURBINE BLADES 总被引:1,自引:0,他引:1
ESTIMATINGTHECUTTER'SMAXIMUMDIAMETERIN5-AXISNCFACEMILLINGOFTURBINEBLADES¥LiMing;ZhuXinxiong(DepartmentofManufacturingEngineer... 相似文献
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从5.25″软盘驱动器安装MS-DOS6.0一例(675000云南省楚雄人民警察学校)许兴华一台IBMPC兼容机TMS386DX,配有1.2MB+360KB双软驱动器。笔者试图安装MS-DOS6.0,原版MS-DOS6.0安装系统,共计1.44MB的... 相似文献
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安装ACTIVE PERL l由于 ULTIMATE BHLLETINBOARD MM.M*u CGI撰写的讨论区程序,因此如果要在WINDOWS环境下执行,就必须安装PERL执行程序。所以首先请到这里下载免费的ACTIVEPERL程序:HTTP://WWW.ACTIVESTATE.COM/DOWN-LOAD/ACTIVEPERL/WINDOWS/5.6/ACTIVEPERL-5.6.0.623-MSWIN32-X86-MULTI—THREAD.MSI。 下载完后,请直接执行ACTIVEPERL-5.… 相似文献
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扁球壳的边界元分析的一种简便方法龙述尧,蒯行成,李家宝,陈军(湖南大学)ACONCISEMETHODOFBOUNDARYELEMENTANALYSISFORSHALLOWSPHERICALSHELLS¥LongShu-yao;KuaiXing-che... 相似文献
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杨自强 《数值计算与计算机应用》1994,(1)
关于非线性L_1回归的算法杨自强(中国科学院计算中心)ONSOMECOMPUTATIONMETHODSOFTHENONLINEARL_1-NORMESTIMATIONINREGRESSION¥YangZi-qiang(ComputingCenter.A... 相似文献
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Yuki Okafuji Jun Baba Junya Nakanishi Itaru Kuramoto Kohei Ogawa Yuichiro Yoshikawa 《Advanced Robotics》2020,34(14):931-946
This study focuses on the use of humanoid robots in office environments, and investigates whether a robot can maintain the attention of passersby after initiation of face-to-face contact. Drawing attention can be considered as a first step in improving the continuity of use of robots; such continuity is one factor in validating their social acceptance, which must be considered when disseminating robots in offices. In this study, we assume that the robot approaches and greets users in order to make the users aware of its presence and encourage them to use it. In particular, the robots used in this study convey various greetings along with three nonverbal indicators (no motion, random motion, and face-to-face contact) when a passerby at the office is close to the robot. For a one-week period, we validated the social acceptance of the robot by examining how these robot motions influenced the rate and continuity of a passerby's attention. The results revealed that face-to-face contact can draw a high degree of attention, and that the presence of the robot affects the continuity with which attention is drawn. Finally, the paper discusses implications for future robot design, in terms of drawing and maintaining high rates of attention from users. 相似文献
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采用在线手绘草图识别和理解技术,设计并实现了一个支持用户流畅输人的二维方案设计CAD系统.该系统的主要特点体现在3个方面:采用一种基于曲率的笔画分割方法,能适应不同用户的输入习惯;提供了基于上下文的显著图符成组功能,可以支持用户方案构思过程中手绘输入的流畅性;引入主动纠错机制,提高了基于草图文法的图符识别效果.最后,用针对电路图设计所开发的原型系统验证了该方法的有效性. 相似文献
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The success of constraint-based approaches to drawing has been limited by difficulty in creating constraints, solving them, and presenting them to users. In this paper, we discuss techniques used in theBriar drawing program to address all of these issues. Briar's approach separates the problem of initially establishing constraints from the problem of maintaining them during subsequent editing. We describe how non-constraint-based drawing tools can be augmented to specify constraints in addition to positions. These constraints are then maintained as the user drags the model, which allows the user to explore configurations consistent with the constraints. Visual methods are provided for displaying and editing the constraints. 相似文献
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工程设计中多图联动建模技术提供用户友好的工程设计空间,建立了工程原理图和多个工程布置图之间的信息关联。采用3D数据存储——2D图形可视转换技术,得到图形变换矩阵。把设备的各个视图的图块预存入图形库中,绘图时,设置相应的绘图图层,只要在布置图的一个视图中插入设备图,系统会在其他视图中自动插入相应的投影图形,并且当修改或者删除一个视图中的图形时,其他视图对应的图形也会自动完成相应的操作,实现了多个工程视图的联动。 相似文献
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Kregg Aytes 《Computer Supported Cooperative Work (CSCW)》1995,4(1):51-71
Collaborative drawing tools, which are designed to allow multiple users to share an electronic drawing space, have recently become the focus of many researchers' efforts. While advances have been made in the technological implementation of these tools, little is known about the effect these tools have on group processes. This paper discusses a study that was conducted to compare groups using conventional (whiteboard) technology to those using collaborative drawing tools. The results of these two experiments provide evidence that these tools alter the way in, which groups work. For some types of tasks, the amount of interaction among group members using a collaborative drawing tool tends to be less than among groups using conventional technology. Groups using collaborative drawing tools tended to take significantly longer than whiteboard groups. Possible reasons for these results are further explored in this paper. 相似文献
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随着计算机日益普及,机械图样越来越多地使用计算机绘制,且企业中机械图样普遍使用AutoCAD平面绘图软件绘制,如何提高制图员的绘图速度显得尤为重要。本文介绍AutoCAD使用技巧,对制图员提高绘图速度有一定的帮助,对制图教师、AutoCAD培训教师也有一定的指导意义。 相似文献