Import3DAscii. Inducts the three dimensional data to the text documents, facilit...

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

mapxtreme2005初学代码～ 很容易明白地图加载过程，及简单工具应用-code ~ mapxtreme2005 beginner can easily understand map loading process, and the application of simple tools

高程网平差VB程序，这个程序是以前自己本科的时候编写的，经过亲自测试是可以用。并且该程序是可以选择根据距离或者测站数来进行平差的

HillshadeCommand.rar。　三维阴影的计算机内部实现。 以DLL形式。-HillshadeCommand.rar. Three dimensional shadow computer interior realization. By DLL form.

专家场做图像的去噪和修复，老外写的，很不错。-Experts to do field image denoising and restoration, written by a foreigner, is pretty good.

使用vc实现GIS的简单矢量图形绘制与常见GIS类图形文件的打开功能 （1）利用鼠标绘制点、线、多边形、圆等 （2）图形的颜色与填充功能 （3）mif、shp格式文件的打开-Dev in VC++, Which implements the simple Vector Graphics Drawing and opening normal GIS format file. 1. Mouse-Driven of Point, Line, Polygen, Circle, etc. 2. Graphics Color and Filling. 3. Opening .mif, .shp file

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.

一个用VB和MO实现的简单的查询系统，可以实现放大、缩小、图层控制以及图形和属性的查询-using VB and an MO to achieve a simple query system, can achieve amplification, narrow, layer control, and graphics and attributes of inquiries

简易车辆导航系统，实现地图匹配，电话号码，单位设施，最优道路检索

应用背景该代码用于python对于栅格数据的二维等值线的可视化，通过数据可视化的手段可以加强海洋技术专业的同学对海洋数据的分析和了解。python是一种脚本语言，使用起来比较方便。关键技术主要是基于windows 7下的python中的matplotlib包和numpy包进行数据处理和绘制图像。等值线就是从很多数据中提取出某个值的所有值进行插值绘制线使得所有相等的值都绘制出一条线来。