is a good C Hotels Management Office of the Secretary the right side of history...

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

AE开发实例，梁爽整理制作 来自网站：http://www.coolgis.com.cn-AE development examples, Liang Shuang finishing production from the website: http://www.coolgis.com.cn

根据例子源码创作的一个简化版的GIS shp图层编辑软件。使用前提：电脑上安装有ArcGIS桌面软件。

Navit is a open source (GPL) car navigation system with routing engine. It s modular design is capable of using vector maps of various formats for routing and rendering of the displayed map. It s even possible to use multiple maps at a time. The GTK+ or SDL user interfaces are designed to work well with touch screen displays. Points of Interest of various formats are displayed on the map. The current vehicle position is either read from gpsd or directly from NMEA GPS sensors. The routing engine not only calculates an optimal route to your destination, but also generates directions and even speaks to you.

arcgis培训资料，对于想了解arcgis和即将进入arcgis领域的软件人员很有帮助-arcgis training materials, for arcgis and want to know is about to enter the field of software arcgis helpful staff

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)

MAPGIS库管理子系统的运用方法及其意义(caj 格式)-MAPGIS base management subsystem, the use and significance (CAJ format)

ArcObjects实现图层控件代码(TOCCONTROL)-ArcObjects code to achieve the control layer (TOCCONTROL)

这是一篇关于工程土方计算DEM法探讨的论文，功能比较完善，可以作为初学者的参考-This is an article on the project earthwork calculation method DEM paper, a relatively complete feature can be used as a reference for beginners

自定义生成DXF文件组件库，包括画线、点、圆弧、圆/椭圆、文字、多边形、填充等等20多个功能。-Custom component library to generate DXF files, including the painting line, point, arc, circle/ellipse, text, polygon, filling more than 20 features and so on.