矢量数据结构

一种三维GIS矢量数据结构的研究&以矿山应用为例

The study on 3D GIS vector data structure

为此，本文使用了分层的矢量数据结构作为空间数据的存储格式，并结合矢量数据结构特点对空间数据进行了映射。

Therefore , this paper uses the layering vector data structure as the data store format and maps the spatial data .

第二部分综合分析了矢量数据结构与栅格数据结构转换领域已有的转换算法。

In the second part , many approaches for mutual transferring between vector structure and raster structure have been analyzed synthetically .

与矢量数据结构相比，用栅格数据结构表达地理要素比较直观，容易实现多层数据的叠合操作，便于与遥感图像及扫描入数据匹配使用等。

Compare to using vector data , using raster data to express geographic elements is straighter and easy to achieve the composition of multi-layer data , which is also convenient to matching remote sensing images data and scanning data .

在RS与GIS集成环境下，实现基于独立变量的矢量栅格一体化数据结构，并建立了基于B+树与四叉树的联合索引结构；

Later on , the unified data structure of the vector and the grid based on independent variate was achieved in the integrated environment of RS and GIS , also a combined index about the B + tree and the Quadtree was constructed .

矢量图形数据拓扑结构的生成及应用

The Establishment of Topological Data Structure and Its Applications

结合数字矢量地图的数据结构和文件结构，详细分析了数字矢量地图的属性特征数据，并提出了可实现数字水印无损嵌入与提取的零比特动态扩展技术。

With the knowledge of data structure and file structure of digital vector maps , its attribute information has been presented in detail and a lossless scheme with zero-bit dynamical extension has been proposed .

一种适合掌上电脑GIS矢量的栅格存储数据结构的研究

The Study on Vector Based Raster Data Structure for PDA

矢栅一体化的三维地形可视化研究一种适合掌上电脑GIS矢量的栅格存储数据结构的研究

A Research on the Displaying of Vector Data and Raster Data Contemporarily above the Three-Dimension Terrain The Study on Vector Based Raster Data Structure for PDA

本文介绍了一种适用于嵌入式GIS系统的矢量地图坐标数据存储结构，并通过地图高速坐标转换算法、高速旋转变换算法、地图空间索引等几种方法实现矢量地图的高速显示。

This article introduces a storage structure-suitable for Embedded GIS System-of vector map 's coordinate data , and with the high-speed Coordinates Transform Algorithm , high-speed rotation Transformation Algorithm and Spatial Indexes etc. , high-speed drawing of vector map can be realized in the embedded system .

面向对象矢量的栅格存储数据结构研究

Study on Object-Oriented Vector Based Raster Data Structure

针对遥感图像与地理信息系统矢量图之间的数据结构和显示时所用的坐标系统的不同问题，通过研究遥感图像与矢量图形叠加来解决两种数据的融合。

Aiming at the problem that the different use of structure and coordinate systems while showing , the tackle of hindered among remote sensing image doses of picture and geographical information system vector figure through overlay .

对融合了栅格数据和矢量数据优点的栅格矢量一体化数据结构进行了改进，设计了适用于管网数据的栅格矢量一体化数据结构；

The unification data structure of vector and raster is improved .

应用基于矢量网格的空间叠加分析方法解决栅格和常规矢量数据结构在处方生成中的局限，生成了基于土壤养分和目标产量为主要因素的施肥处方；

Using vector-grid spatial-overlap analysis to solve the limitation of the grid and general vector data structure in the course of creating prescription , it made fertilizer prescription founded on the main factor of soil nutrient and yield-target .