全国电子地图，mif数据交换格式！可以供GIS开发者使用！

实现空间分析、属性查询、框架设计等

用ERSI公司Arcengine组件,实现对地图的打印功能.-with ERSI company Arcengine components of the map to achieve the printing function.

一个安监局的例子，用VB开发的工程。使用控件是mapx4.5。-Examples of a Work Safety Supervision Bureau, with VB development project. The use of controls is mapx4.5.

毕业设计项目，GIS系统，采用C#语言以及ArcGIS Server、Asp.net 2.0开发的web系统。系统实现了网上地图的浏览、信息查询、图元选择等功能。-Graduate Design Project, GIS systems, the use of C# Language, and ArcGIS Server, Asp.net 2.0 developed web system. System to achieve an online map browser, information query, select features such as graphic element.

本文结合DCT变换的特性，利用分形的Peano一hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。主要工作分为两个部分: 一是在分块DCT基础上的改进。对分块后生成的各图像块矩阵，不直接作二维DCT变换，而是先进行扫描，使之重排成一维向量，再进行一维DCT变换，这样可以减少运算量。 其次是对层次余弦变换编码部分的改进。使用层次DCT变换与零树编码相结合的方法，并在扫描编码过程中，按Peano一hilbert扫描顺序进行编码。这样不仅可以减少“块效应”，而且可以加快编码速度。-this paper the characteristics of DCT, using fractal Peano a Hilbert scanning curve, the DCT-based image coding method for the study and improvement of methods. The work is divided into two main parts : First, the DCT block on the basis of improvements. Right after block production of the image block matrix, not for direct two-dimensional DCT, but first scan, so they line up in a heavy-dimensional vector and then a peacekeeping DCT, thus reducing the amount of computation. Secondly, the level of cosine transform coding some of the improvements. The use level of DCT and zero tree coding combination of methods, coding and scanning process, according to a Hilbert Peano code scanning sequence. This will not only reduce the "blocking

三角网生成 采用三角网生长算法 自动生成随机点，构建三角网-Triangle Generation using triangulation algorithm automatically generate growth random, Construction triangulation

等值线生成与图形填充算法,这个是很有用的东东阿-isoline generation and graphics filling algorithm, it is very useful to the Eastern A

VB+MAPOBJECTS开发GIS软件的例程,是初学者入门的好资料 -VB MAPOBJECTS development of GIS software routines is a good beginners information portal

读.grd格式的文件，直接生成等高线，并能生成DTM，能漫游，功能完善。-Read. Grd file directly to generate contour lines and can generate DTM, to roaming, fully functional.

程序演示了vc下读取mapInfo数据的功能，。包括.mif和.mid和.tab.-Procedures demonstrated vc MapInfo data under the read function. Including. Mif and. Mid and the. Tab.