网络分析器源代码, 网络分析器源代码,

VB6.0+MAPX开发原理-VB6.0 Connection Principle Development

中国矢量电子地图shshape格式用于GIS二次开发地图，如MapObjects，MapX等二次开发地图~

ArcGIS中一般为采用GIS的组件打印，但本方法直接通过系统函数打印出来，方便-ArcGIS General GIS component for the introduction of printing, but this function directly through the system print out Convenience

Import3DAscii。　导入三维数据到文本文件，以方便其它软件的提取等操作。-Import3DAscii. Inducts the three dimensional data to the text documents, facilitates other software to withdraw and so on the operation.

GIS-data地图数据，水，路，桥，大区，县等-GIS-data map data, water, roads, bridges, big districts and counties, such as

MAPGIS供水管网信息管理系统的数据组织(caj 格式)-MAPGIS water pipe network information management system for data organization (CAJ format)

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

3维地理信息系统数据模型的设计，很好的例子帮你解决问题-3-dimensional GIS data model design, a good example to help you solve the problem

Mapx中鹰眼的实现对初学者有很大的作用-Eagle Eye MapX in the realization of the role of a great beginner

深圳09年最新矢量地图(MapInfo格式)-Shenzhen, in 2009 the latest vector map (MapInfo format)