vector data

It is possible for the vector topographic data to remain many problems after importing to personal database. So the author did some research on how to check the problems and how to combine the data-check in the database and the pretreatment before importing to database.

如何通过各种方式检查出矢量地形数据入库后仍存在的问题，如何将对矢量地形数据库的GIS数据检查和对原始矢量地形数据的检查进行统一安排，作者也提出了一些有价值的见解。

For the sake of the convenience for overlay analysis, the vector data are always transferred to raster data.

由于栅格数据十分有利于空间分析中的叠置分析，因而通常需要将矢量数据转换成栅格数据。

Study of vector data symbolization method based on vector-raster technique

基于矢量栅格技术的矢量数据符号化方法研究

Vector data symbolization is a main method of GIS spatial information visualization. It is usually realized based on vector technique.

矢量数据符号化是GIS中空间信息可视化的一种主要方法，通常是采用完全基于矢量技术的算法实现。

The thesis discusses a method of vector data compression: subsection Douglas algorithm with the goniometry.

本文提出了一种矢量数据压缩方法: 角度分段道格拉斯算法.

Stress field in the fuyun, Xinjiang earthquake fracture zone determined by fitting fault slip vector data

用滑动方向拟合法反演富蕴地震断裂带应力场

The Checking Method of Terrain Feature Vector Data

地物矢量数据的检查方法

Vector data contains geometric shapes defined by x and y coordinates, and frequently z ( elevation) coordinates.

矢量数据包含由x和y坐标，经常还有z（立面）坐标所定义的几何图形。

Research and improvement of method for vector data compression based on dynamic programming

基于动态规划算法的矢量压缩方法研究与改进

According to the three-dimensional continuity of subsurface space and requirements of interactive modification and analysis in the process of modeling, an new three-dimensional vector data model for subsurface modeling is proposed.

针对地下空间的真三维连续特性以及地下建模过程的动态交互编辑与分析要求，提出了一种新的三维地下空间矢量数据模型。该模型采用面向对象思想对地下各种空间对象进行抽象描述；

Optimization Strategy for Spatial Vector Data Transmission in Internet GIS

Internet GIS上矢量型空间数据传送的最优化策略

By comparing and analyzing, most methods and technologies only complete overlay between DEM and vector data, but ignore the semantic correctness in result dataset, and do not correct the semantic errors.

现有的方法和技术主要实现了地形数据与矢量数据的融合，但忽视了融合后数据集的语义准确性，并未对存在语义误差的数据集进行纠正。

The basic problems in realizing Virtual City are how to store, load, query and update large-scale 3D models efficiently, and how to manage 3D Model with the vector-graph, text attribute and raster data.

实现虚拟城市应用的其中一个基本问题就是如何有效的存储、读取、检索和更新大规模的场景数据，以及把虚拟场景和矢量地图、文字属性以及栅格数据进行统一管理。

Research on Conversion Technology Between Vector Data and Bit Image Data

矢量数据与位映象数据之间的转换技术研究

The parameters of groundwater flow simulation can be automatically acquired by transforming vector data into raster data mutually.

经过矢量数据与栅格数据互相转换，实现地下水流有限差数值模拟有关参数的自动提取。

We realize promulgating vector data through Internet using the network display plug-in of AutoDesk company.

应用AutoDesk公司提供的网络显示插件实现了矢量数据的网上发布。

It is difficult to automatically and accurately extract vector data from thematic map because of annotations.

注记信息的存在使得从专题图自动获取矢量数据具有一定难度.

Through the related technologies of Mobile GIS, the characteristics of mobile smart terminal equipment and transmission environment are described, this paper analyses the importance of vector data compression in Mobile GIS.

通过对移动GIS相关技术和移动智能终端设备以及传输环境特点的介绍，分析了移动GIS中矢量数据压缩的必要性。

Rendering vector data over 3D terrain based on stencil shadow volume algorithm

基于模板阴影体算法的矢量数据在三维场景中的绘制

This paper describes segmentation feature and fault structural styles of this boundary zone. Paleo-stresses have been determined using measured fault slip vector data and Jurassic-Cretaceous stress evolution has been established.

基于野外观察和构造测量资料，本文论述了该边界带分段特征及断裂构造样式，利用断层滑动矢量资料反演古构造应力方向，建立了侏罗纪&白垩纪构造应力场演化序列。

The principle of stencil shadow volume is introduced, and an efficient rendering algorithm for 3D vector data is realized, which has the pixel-level accuracy in screen space. 7.

引入模板阴影体原理，实现了一种具有屏幕像素级精度的三维矢量数据高效绘制算法。

After analyzing the change of test requirement, this paper presents a waveform data format based on the similar-STIL in test vector translation from EDA to ATE.

为了实现由芯片设计仿真出来的测试向量到测试设备的测试程序转换，在分析了不断变化的测试需求后，提出了一种类-STIL的波形数据格式。

A Study of Extracting Terrain Feature Lines Based on Vector Contour Data

基于矢量等高线数据提取山脊线山谷线的研究

Research on Application of Spatial Vector Data Format Transformation

空间矢量数据格式转换应用研究

Putting forward a vector data rasterization method which is a boundary monument scanning beam rasterization method which combines the boundary monument with scanning line seed.

提出一种矢量数据栅格化方法，即将边界标志法与扫描线种子填充相结合的边界标志扫描线的栅格化方法。

This system has functions of editing and updating data of space and attribute, searching and querying information,( displaying) and zooming vector data, buffer analysis and making specific maps, etc.

该系统的主要功能是空间与属性数据的编辑与更新，信息的检索与查询，矢量数据的显示、缩放、漫游，缓冲区分析以及专题图制作等。

Terrain Matching for Three-dimensional Visualization of Two-dimensional GIS Vector Data

面向二维GIS矢量数据三维可视化的地形匹配技术研究

The improved algorithm based on the compression of vector data, can better reserve the characteristics of the graph, and solve the problem of storage and display the vector data in the mobile smart terminal devices with limited hardware condition.

在矢量数据得到压缩的基础上，更好的保留了图形的特征。

A novel data prediction model, Support Vector Machine with Granular Computation ( SVM_GC), is proposed for processing the complex prediction problems with mass biological data.

针对海量数据的复杂生物数据分类预测，本论文提出了一个新型的基于粒计算的支持向量机预测模型（SVM GC）。

In order to combine the advantages of 2D vector data and 3D terrain data, the research of the GIS based on the blended data is becoming hot, while the key issue is the data integration and real-time rendering between the 2D vector data and three-dimensional terrain.

为了同时拥有二者的优点，基于混合数据的地理信息系统逐渐成为研究的热点，它的关键问题就是二维矢量数据与三维地形数据之间的融合及实时渲染。