VB MO prepared some simple basic GIS functions, we might dispense with the prepa...

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

根据arcgis engine进行二次开发，实现出租车的路线查找以及推荐，主要利用vs2010实现，语言为C#，功能比较简单

不需要控件，直接可以运行的纯C++GIS地图操作程序。数据为shp矢量格式或AOTOCAD2004DXF格式

我这个不过初学者也可以看看，希望gis高手们也能上传些源码。-the beginners can also see hope gis masters can also upload some source.

一个 GIS 程序源代码-a GIS program source code

这是一篇关于ns2实现的文章，这里有一些有用的代码，还有一些实际代码jghbjnkml，；kgjnkml，lhbnjkm，lkjlk；jlkjk；ljl；kj；lkj；lkj；luyghlkjhlk

WIN XP下操作并口的最好控件，有中断、位等，代码DEMO很丰富。-WIN XP parallel port to operate under the best control, have interrupted, etc., code DEMO very rich.

Visual C++开发GIS系统(陈建春)附书光盘，里面包含本书全部完整源代码。-Visual C development of GIS (Chen Jianchun) attached CD, which contains all of the integrity of the source code.

一个画等值线的程序，很好的可不能错过了阿-a contour drawing procedures, good can not be missed A