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1.
本文利用Windows下的动态数据交换性,对在西文AutoCAD12.0的工作平台上开发汉字化浮动菜单进行了研究,并在Borlandc++的环境中用ads语言编实现了一个DDE程序,在AutlCAD的工作平台上生成良好的汉化浮动菜单框。  相似文献   

2.
一.数据库环境的设置 本文以AutoCAD R14为基础软件,用V C++5.0为开发工具,数据库是AutoCAD R14默认的dBASE3,数据库文件格式为*.dbf。 1. AutoCAD RI4的数据库环境设置 首先打开在AutoCAD R14程序组中的External Database Configuration(对应AutoCADR14\asicfg.exe),在Environment标签中的Environment项中有三个默认选项: DB3,ODBC,ORACLE7分别针对不同的数据库引擎。本文…  相似文献   

3.
本文以AutoCADR12/Win为平台,以BorlandC++4.0为工具,完成了电气成套装置3维设计系统ELE3DCAD。它利用AutoCADSQL的程序接口ASI,把Foxpro/Win编制成的外部数据库与AutoCAD的图形数据库联系起来。ELE3DCAD基于AutoCADAME,是一种实体造型的3维设计系统。该系统可得到任意角度的视图和任意多个剖切平面下的剖视图,可对电气元件进行空间碰撞检测和电气碰撞检则。  相似文献   

4.
在AutoCAD下用VB程序实现数据库数据的查询与传递   总被引:1,自引:0,他引:1  
介绍了在标准图形绘制参数化中,以AutoCADForWindows为平台,用VisualBasic(VB)中实现标准件标准值的查询,并把查询结果用VB的DDE功能传递给AutoCAD为AutoCAD的二次开发提供了一种新方法。  相似文献   

5.
用DDE实现AutoCAD二次开发的研究   总被引:1,自引:0,他引:1  
文章对服务器与客户之间应用DDE特性进行了探讨,分析了在BorlandC++的环境中用ads_dde二次开发AutoCAD的支撑软件。  相似文献   

6.
本文论述了利用UCDOS在AutoCAD12forDOS以及利用中文之星2.0在AutoCAD12forWindows中进行注写和修改汉字的方法。此方法不需要专用的AutoCAD汉化环境,完全保持其原有特性,能够满足一般应用的需要,简单实用。  相似文献   

7.
介绍了Windows编程中的DDE技术,并把DDE应用到AutoCAD开发中,使AutoCAD强大的绘图功能与Visual Basic方便的界面设计功能结合在一起。  相似文献   

8.
Autodesk公司推出的R14,以其整洁可变的界面,出色的性能,被公认为CAD软件中的杰作,特别是它的运行时扩展系统(AutoCADRuntimeExtension),由于借助微软的VisualC++编译器,其功能是以前的lisp工具和ADS工具所...  相似文献   

9.
对AutoCAD和WORD中几种图形格式及生成与调用方法进行了比较,给出了在Windows环境下利用中文WORD对AutoCAD中的工程图纸进行汉化输出的实现方法。  相似文献   

10.
为了解决现在铁路信号控制电路设计软件效率低、功能单一的弊端,以美国的Autodesk公司1992年推出的AutoCADR12作为主要操作平台,建立了VisualC++、Excel、VisualBasic、Foxpro、AutoLisp协同工作的铁路信号控制绘图及仿真软件包。此软件包性能优越、界面友好、操作简单。  相似文献   

11.
多数社交网络影响力最大化算法的研究只关注于所选种子节点集合的影响力是否最优,忽略网络自身传播影响力的固有能力。本文对网络进行渗流模拟,计算渗流后网络的主连通分量随着传播概率改变的趋势,并且求得主连通分量大小增加开始变快的相变点,从而计算网络自身传播影响力的固有能力。通过相变值与种子节点集合大小的换算,求得当前网络最佳的种子节点集合大小。将种子节点集合大小限制在最佳大小范围内即可获得最佳的影响力。在kareteclub、football、highschool和socdolphins社交网络数据集上进行实验,验证了该方法的有效性。  相似文献   

12.
The new method of defuzzification of output parameters from the base of fuzzy rules for a Mamdani fuzzy controller is given in the paper. The peculiarity of the method is the usage of the universal equation for the area computation of the geometric shapes. During the realization of fuzzy inference linguistic terms, the structure changes from the triangular into a trapezoidal shape. That is why the universal equation is used. The method is limited and can be used only for the triangular and trapezoidal membership functions. Gaussian functions can also be used while modifying the proposed method. Traditional defuzzification models such as Middle of Maxima − MoM, First of Maxima − FoM, Last of Maxima − LoM, First of Suppport − FoS, Last of Support − LoS, Middle of Support − MoS, Center of Sums − CoS, Model of Height − MoH have a number of systematic errors: curse of dimensionality, partition of unity condition and absence of additivity. The above-mentioned methods can be seen as Center of Gravity − CoG, which has the same errors. These errors lead to the fact that accuracy of fuzzy systems decreases, because during the training root mean square error increases. One of the reasons that provokes the errors is that some of the activated fuzzy rules are excluded from the fuzzy inference. It is also possible to increase the accuracy of the fuzzy system through properties of continuity. The proposed method guarantees fulfilling of the property of continuity, as the intersection point of the adjustment linguistic terms equals 0.5 when a parametrized membership function is used. The causes of errors and a way to delete them are reviewed in the paper. The proposed method excludes errors which are inherent to the traditional and non- traditional models of defuzzification. Comparative analysis of the proposed method of defuzzification with traditional and non-traditional models shows its effectiveness.  相似文献   

13.
A method of synthesis of fuzzy stabilization systems for a broad class of dynamic objects under the assumption that the mathematical model of the object is not known a priori is proposed. The control is formulated in the form of a proportional law of adjustment as a function of a macro-variable; the square of the Euclidean norm of the phase variables is adopted as the macro-variable. An analogous variable characterizes the distance of the object from the equilibrium position. Despite the simplicity of the control law, its sign remains constant due to the fact that the macro-variable is positive-definite over the entire phase space. The switching times of the signals are determined by fuzzy identification of the system’s dynamic modes on the basis of measurement of the derivatives of the macro-variable.  相似文献   

14.
The perception of vehicle ride comfort is influenced by the dynamic performance of full-depth foam used in many vehicle seats. The effects of the thickness of foam on the dynamic stiffness (i.e., stiffness and damping as a function of frequency) of foam cushions with three thicknesses (60, 80, and 100 mm), and the vibration transmitted through these cushions at the seat pan and the backrest were measured with 12 subjects (6 males and 6 females). With increasing thickness, the stiffness and the damping of the foam decreased. With increasing thickness of foam at the seat pan, the resonance frequencies around 4 Hz in the vertical in-line and fore-and-aft cross-axis transmissibilities of the seat pan cushion and the backrest cushion decreased. For the conditions investigated, it is concluded that the thickness of foam at a vertical backrest has little effect on the vertical in-line or fore-and-aft cross-axis transmissibilities of the foam at either the seat pan or the backrest. The frequencies of the primary resonances around 4 Hz in the vertical in-line transmissibility and the fore-and-aft cross-axis transmissibility of foam at the seat pan were highly correlated. Compared to sitting on a rigid seat pan with a foam backrest, sitting with foam at both the seat pan and the backrest reduced the resonance frequency in the vertical in-line transmissibility of the backrest foam and increased the associated transmissibility at resonance, while the fore-and-aft cross-axis transmissibility of the backrest was little affected. Compared to sitting without a backrest, sitting with a rigid vertical backrest increased the resonance frequency of the fore-and-aft cross-axis transmissibility of the seat pan cushion and increased the transmissibility at resonance.Relevance to industryThe transmissibility of a seat is determined by the dynamic properties of the occupant of the seat and the dynamic properties of the seat. This study shows how the thicknesses of foam at a seat pan and foam at a backrest affect the in-line and cross-axis transmissibilities of the foams at the seat pan and the backrest. The findings have application to the design of vehicle seats to minimise the transmission of vibration to the body.  相似文献   

15.
基于XML的中间层交互技术的研究   总被引:1,自引:0,他引:1  
陆剑江 《微机发展》2004,14(8):30-33
由于HTML自身的不足.所以无法适应Web发展的复杂性和多变性,也不利于机器之间的数据交换和信息传递,通过对XML和HTML作多个角度的对比,文中提出将XML作为载体实现Web上的动态交互。首先从XML的自身特点出发,分析了XML驱动下的Web体系结构,从而得出基于XML的中间层交互技术的实现原理.重点研究了如何设计与XML相匹配的Web数据库,用XML查询数据库的实现方法,以及如何构造从XML到数据库的映射关系,具体包括从XIviL的DTD或者Schema出发来设计数据库的结构或者从数据库本身出发来构造与之相适应的DTD或Schema,最后分析了浏览XML格式信息的诸多策略。  相似文献   

16.
李程程  王晓云 《软件》2013,(12):186-189
针对目前流行的OpenFlow技术,本文提出OpenFlow的标准进展、商业价值和连通性测试。该方法根据控制层面和转发层面相分离的技术,采用移动研究院内网拓扑进行测试。实验结果表明,通过在BigSwitch controler上进行相关命令配置就可实现二层的OpenFlow交换机互联的不同网段主机的通信。OpenFlow是SDN技术中一种关键的接口协议,SDN是对网络的抽象, OpenFlow是对单个转发面设备的抽象。OpenFlow交换机和Control er的出现为新型互联网(NGN)体系结构的研究提供了实验途径。  相似文献   

17.
Abstract In 1988 the eleven West-German Kultusminister , with responsibility for the school systems in their respective Bundeslaender , reached agreement with the Federal Ministry of Education and Science on the broad concept of 'Information and Communications Technology', ITG. After four years of discussion it was agreed that ITG should be introduced into the secondary level of the general schools. In spite of strong disagreements about the ways and speed of implementation, and after several years of experiments, important parts of the concept have become a reality in practically all of the old Bundeslaender. While acknowledging the complexity of the German educational system the paper attempts to outline the development of the concept of Information and Communications Technology and its consequences in teacher education. The development in the eastern part of Germany, the former GDR, has been completely different to that in the western part and this is also commented upon in the paper.  相似文献   

18.
The traditional level set has randomness in the location selection of the initial contour, and lacks the processing of edge information. Therefore, accurate extraction of brain tissue edges cannot be achieved. Therefore, firstly, the level set algorithm of fusion partition and Canny functional fuses the idea of partition and combines the morphological information of each region to complete the initial contour position selection, so that the initial contour contains more brain tissue, and improve the efficiency of brain tissue extraction. Secondly, the Canny operator is integrated into the energy functional, which improves the accuracy of detecting the edge of the macaque brain tissue while retaining the superiority of the traditional level set on the uneven grayscale image. Results show that the algorithm achieves accurate extraction of macaque brain tissue with an accuracy of up to 86%.  相似文献   

19.
目前大多数研究对复杂社会网络关键节点影响力的识别都是静态的,缺乏动态变化的分析。采用可拓聚类方法对动态变化下的科教人际网络进行量化分析,首先以多属性决策法计算每个节点重要性,再利用变异系数权重法计算得该节点综合重要性量值,之后划分等级并取标准正域和正域区间,利用可拓关联函数计算每个节点与每个等级的关联度,关联度值最大的等级即为该节点对应等级,最后分析同一社会网络节点在不同时间点的重要性等级变化。可拓聚类方法尝试从动态上对网络节点重要性进行把握,最后通过实例验证了该方法的有效性。  相似文献   

20.
戚银城    赵席彬  耿劭锋  张薇  赵振兵    吕斌 《智能系统学报》2022,17(6):1154-1162
实现输电线路图像典型金具的精准检测是进行其缺陷检测的前提。针对通用目标检测模型对密集分布、遮挡严重的金具检测精度较低、易出现漏检等问题,提出了一种结合金具间遮挡结构信息和场景关联信息的典型金具检测方法。基于经典的Faster R-CNN模型提取金具特征作为节点,提取整张图像特征作为金具场景关联信息,学习金具标注框间相交区域信息作为金具遮挡关系信息,并采用图同时建模金具特征、场景关联信息和遮挡关系信息,通过门控循环单元信息传递机制构建结构推理模块完成金具类别和位置的联合推理检测。为了验证所提方法的有效性,选取了8类存在遮挡连接关系的金具进行实验,其中,原始Faster R-CNN模型的mAP值为81.30%,改进模型的mAP值为84.15%。实验结果表明,本文方法一定程度上提高了遮挡严重金具的检测精度,为后续的金具故障诊断奠定良好的基础。  相似文献   

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