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814649VB031014sms
通过Modem传输数据 (Modem transmission of data through)
- 2009-01-05 16:16:07下载
- 积分:1
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Population
c++ 链接access 建立的一个小型人员统计系统管理 代码简单(c++ link access to the set of a small staff Biejiao simple statistical system management code)
- 2014-03-09 10:11:57下载
- 积分:1
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NURBS110707
高速切削加工技术是一种先进的制造技术,具有强大的生命力和广阔的应
用前景,已成为切削加工的主流。数控插补技术是数控系统实现轨迹运动控制
的基础,插补运算是CNC系统软件实现运动控制的核心模块,插补算法的优劣
将直接影响到CNC系统的性能。因此,实现一种高精度和高速度的插补方法是
插补的关键所在。
本文在分析传统基准脉冲插补、数据采样插补的算法的基础上,着重研究
了三次NURBS曲线实时插补技术,针对部分算法的不完整或效率低,提出了
一种简单快捷的插补算法。采用NURBS曲线的矩阵表达式,将整个插补过程
分解为插补预处理和实时插补。在插补预处理中完成了大量的计算,预处理的
计算结果直接应用于实时插补,使插补算法满足了NURBS曲线插补的实时性
要求,再辅以必要的轮廓误差控制,实现了加工速度自适应于加工路径的
NURBS曲线直接插补。
本文讨论的插补算法采用C++语言实现,并在VC++6.0的编程环境中实现
了插补算法的计算机仿真,验证了算法的正确性和可行性。(The high speed cutting is one of advanced manufacture technique,which has the powerful vitality and the broad application,and already became the mainstream of machining.The interpolation technology of NC is the foundation of path s control in the CNC system,and the interpolation operation is the core module of
CNC system software,which comes the motion control true.The interpolation
algorithm,whose function is good or bad,directly influences the performance of CNC system.So,a kind of interpolation method with the high accuracy and high speed is the key of interpolation.
Based on analyzing the traditional pulse interpolation and data sampling
interpolation,this paper emphasizes on the NURBS curve real-time interpolation
technology.In view of the partial algorithms which is incomplete and the low efficiency,this paper propose a simple and quick interpolation algorithm.Using the
matrix representation of NURBS curve,the whole interpolation process is divided into appropriate pretreat)
- 2011-07-07 11:46:17下载
- 积分:1
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ADO
这是ACCESS的数据库编程文件,可以容易的用在MFC,VC,DELPH等工程环境(ACCESS ADO DATABASE ,MFC VS2008 AND VS2010)
- 2013-08-18 10:30:52下载
- 积分:1
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TwoView
这是一个窗口分割程序,仅供大家参考,如果有什么疑问,请给我发邮件,大家一起讨论!(This is a window procedure for the carving, for your reference, if there is any doubt, please give me email, everyone together to discuss!)
- 2008-05-09 21:39:18下载
- 积分:1
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COMgrasp
实时侦测某个COM口打开和关闭。
实时显示某个COM口发送和接受的数据。
测试某个COM口,打开,关闭,读数据,写数据。
(Real-time detection of a COM port to open and close. Real-time display of a COM port to send and receive data. Testing a COM port, open, close, read data, write data.)
- 2008-04-21 15:52:30下载
- 积分:1
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demo
一个C++的垃圾回收器,用于研究垃圾自动回收机制。(The garbage collector is a C++, used to study.)
- 2014-01-10 16:20:05下载
- 积分:1
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s-
说明: C++大学基础教程,北京邮电大学电信工程学院,计算机技术中心(Essentials C++ University, Beijing University of Posts and Telecommunication Engineering, Computer Technology Center)
- 2013-04-03 15:31:37下载
- 积分:1
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StudentCheck
职责描述:,系统信息设计,学生出操考勤管理、学生上课考勤管理、学生参加活动考勤管理,学生寝室考勤管理,综合统计与查询等六大模块。
项目简述:该系统利用MFC框架 Excel工具开发,来实现学生考勤管理。()
- 2008-03-15 21:13:11下载
- 积分:1
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vba_pdf_orc_src
说明: OCR programe for access in vba 5
- 2020-04-13 08:13:22下载
- 积分:1