Some of the basic GIS procedures, welcome you come to download

delphi+Mapx 例子，包括Mapx的放大，缩小等一些基本功能-delphi Mapx examples, including Mapx magnified narrow and some other basic functions

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

一个用VC++编写的典型的GIS程序，能实现数据的读写，显示，编辑等。-A used VC++ Prepared typical GIS procedures, to achieve reading and writing data, display, editing and so on.

one route algorithms in c

本程序为大地测量中高斯投影坐标计算的，包括了正算和反算-This procedure for the geodetic coordinates of Gauss projection calculations, including the calculation of the positive operators and the anti-

一片gis方面的论文，供参考。-a gis of papers for reference.

地图打印输出的代码，可以参照这一程序用在编写gis的大型程序上。-map printouts of code can refer to the procedure used in the preparation of large gis procedures.

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

基于Voronoi图的空间分析.exe，不错的程序阿，就与环境污染分析的-Voronoi-based spatial analysis. Exe, procedures Ah well, on with the environmental analysis

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