5 . the graphics data have been exchanged and shared by making use of whole variables . the data traffic between the system and metal cutting database has been realized by odbc interface 5 、采用全局变量实现图形数据的交换与共享,通过odbc接口实现与金四川大学硕士学位论文属切削数据库进行数据通信,取得本系统所需的工艺参数。
In the visual c + + 6 . 0 environment of the objectarx and mfc class libraries , graphical data are obtained by secondary development of mdt , inspecting path planning is laid and the inspecting program is made automatically 在objectarx的开发环境visualc + + 6 . 0下,结合mfc类库,对mdt二次开发,提取图形数据,制定检测路径规划,自动生成检测程序。
And it used such a file type - dxf , to save the drawing . thus it make it freely to exchange date with autocad and other applications . then it gives an example of the engineering application - xiangfan si qiao 本文采用dxf这种文件格式对图形进行存储,使系统不仅能与autocad进行图形数据交换,还能与其它应用程序进行交换,从而扩大了系统的适用范围。
Then further theoretical analysis is made on the research of pattern generators . the main problem existed in former pattern generator is that it is difficult to produce a circle even if the pattern are generated by hardware 在对图形发生器的研制做深入理论分析的基础上,针对现有的图形发生器存在的主要问题,即采用硬件产生单元图形数据,很难作出圆。
Abstract : in order to meeting the requirement of capp and manufacturing , in this paper we studied the methods of how to get machining processing information from the old cad ' s drafts . we selected one of the methods to test it practically 文摘:为了加工和实现capp的需要,本文研究了在原cad图形数据的基础上,获取加工工艺信息的方法,并从中选择了一种进行了实验性研究。
After studied the algorithms of the previous scholars , the paper brings forwards a method about 3d reconstruction of virtual solid , based on feature - recognition from the dxf drawing data of 2d orthographic views 本文在介绍和分析前人有关三维立体重建的研究算法的主要思想及其优缺点的基础上,提出一种基于二维三视图dxf图形数据进行三维特征识别的三维虚拟立体建模方法。
The shared information in these network services includes multimedia information such as text , data , video , sound , image and graphics and so on , thereinto , the cad graphics data of products are also shared information applied widely 在这些网络服务中,共享的信息种类包括文本和数据、视频、音频、图像和图形等多媒体信息,产品cad图形数据也是其中一种应用十分广泛的共享信息。
Compared with other existing xml updatelanguages , it has the following features . first , it is the onlyxml data manipulation language based on a higher data model . second , this language can express complex update requests atmultiple levels in a hierarchy in a simple and flat way Xml - gl采用一个xml图形数据模型xml gdm来表示xml dtd和实际的文档, xml元素被表示为矩形而属性和原子值被表示为圆圈。
On the base of current spatial data structure , management technology of gis is discussed in the second chapter . using serialized file organizes graph data , and using relation database manage property data and linking data of graph and property data 第二章在现有gis空间数据组织及空间数据结构基础上,探讨了gis数据管理方法;即图形数据由序列化的文件管理,属性数据及图形和属性数据的连接数据采用关系数据库管理。
But suppose the data being represented varies in its magnitude . you may want to graph values between 0 and 10 today , and between 0 and 100 , 000 tomorrow . plotting these values on the same scales would be useless - ideally , you want the ability to scale svg graphs depending on their content 但是如果要表示的数据相差很大,比如今天的图形数据是从0到10 ,明天的数据就变成0到1000000 ,以同样的比例绘制这样的数据是没有意义的。