data n. 1.资料,材料〔此词系 datum 的复数。但 datum 罕用,一般即以 data 作为集合词,在口语中往往用单数动词;如系指一件资料,则说作 this data〕。 2.〔美国〕(观察所得的)事实,知识。 a data book 参考资料书。 gather data on ...收集…的资料[数据]。 The data is not enough to be convincing. 资料不足,尚难令人信服。
6 . data structure in 3d community is studied and a new way to class substance on land is presented which takes full account of characters of display and combination of vector data and attribute data 研究了三维社区中的数据结构,提出了一种新的地物分类方法,该方法充分考虑了地物的显示特点以及矢量数据与属性数据结合的特点。
This dissertation has emphatically researched the correlative theory and technique about controlling the quality of contour vector data , and developed a suit of practical checking system combining with the actual needs 本文结合作业生产的实际需要,重点研究等高线矢量数据的质量控制的相关理论、技术,并研制了一套实用的检查系统。
The system adopts spatial data model based on the vector data model ; topology relation model uses spatial data model combined with spatial data index ; and makes use of relation database to save spatial entity data 本系统采用基于矢量数据模型的空间数据模型;拓扑关系模型采用空间数据模型与空间数据索引结合;采用关系数据库存储空间对象数据。
Moreover , the paper make research on the arithmetic disposal of image and data in the entire process from digital image to layer vector data of part , and improve it further and realize these arithmetic by soft 并且对从数字图象到零件的层矢量数据整个过程当中涉及到的图象和数据处理算法进行了研究,做出了进一步的改进,并用软件实现了这些算法。
Under the premise of ensuring its accuracy of point positions , not only is vector data obtained but its compressing is also realized with a quicker speed , more accuracy and smaller storage device 该方法在确保点位精度前提下,可获得以弧段为单位的矢量数据,同时依据线状要素的形态取样,从而达到压缩数据目的,此算法处理速度快,精度高、存储量小。
Abstract to increase the storage capacity of mobile equipment and improve the transmission efficiency of vector data on network , this paper proposed a model and improved method of vector data compression based on dynamic programming algorithm 摘要为了使移动设备存储大容量的矢量数据和提高矢量数据的网络传输效率,矢量数据压缩是一项很重要的工作。
For example , if you consider an image rendering grid , the data that makes up the original image description and the code functions or applications that converts this vector data into the final image will remain the same 例如,如果您考虑一个图像呈现网格,构成原始图像描述的数据以及将这些向量数据转换成最终图像的代码(函数或应用程序)都是相同的。
The subspace method was initially used in linear feature extraction and data compression . it can compress vector data to energy concentrative axis and map data from high dimension space to low dimension space 子空间方法最初是线性特征抽取和数据压缩的产物,其作用是将矢量形式给出的数据压缩到能量集中的主轴上,实现数据从高维空间向低维空间映射。
From the system building aspect , author takes out key technologies and difficulties about system integration , which are typical . such as system designing , data inquiry , vector data classbreaks rendering and errors trapping and so on 在系统开发实践层面,本文提出系统集成过程中的关键技术和技术难点,例如,系统设计、数据查询、矢量数据的分级显示、对错误的处理等。
The main process includes performing high - level analysis of the drawing information on vector data in 2d orthographic form , mining engineering semantics from the drawing information , and obtaining the corresponding information of primitive by using engineering semantics 在矢量数据的基础上,对工程图样图形信息进行高层分析和理解,挖掘出其中所蕴涵的工程语义,用于基元体相关信息的获取。