Java 和 ArcGIS Engine 应用程序开发 实例 平台JDK1.42 Windows 2000 环境...

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

本软件基于MAPX5.0控件的开发这个系统本来应该注重于查询的,但查询有点问题,精确查询还好,模糊查询是错误的,大家可以看我的代码,模糊查询应该和精确查询是一样的,只是查的是所有图层罢了.所以我想请教一下大家怎样可以模糊查询,看了代码,照着做了,好像还不是很行,^_^.现在想把它完善一下,改的地方有鹰眼和查询结果做为浮动窗口,地图自动适应窗体的改变,其他还没想好.-MAPX5.0 based on the software controls the development of the system should focus on the inquiry, but for some problems, precision inquiries Fortunately, fuzzy inquiry is wrong, we can look at my code, fuzzy inquiry and precise inquiry should be the same, just check all the layers is just . Therefore, I would like to ask you about how fuzzy inquiry, read code suffices to follow them, do not seem to be OK ,^_^. want it perfect now that the place has changed and the Eagle Eye as a result of inquiries floating window, the map automatically adapt to changes in the form, not to other good . Oh

在VC中利用MAPX实现各种性质的图层的使用，其中不包括细化图层。-in VC Connection use of various layers of the nature of the use, which does not include the thinning layer.

arcgis的shp格式文件转换为txt格式文件-arcgis convert the shp format file txt format

利用分层设色显示数字高程模型dem，在vc开发环境中-The use of layered colors show the digital elevation model dem, in the development environment vc

非常实用，特别是对于GIS开发人员-very useful, especially for the development of GIS staff

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.

vb编写的电子地图软件，内附带上海电子地图，拥有常见的放大，测量距离，查询制定地点等功能-vb prepared electronic map software, electronic maps attached to Shanghai, with common amplification, measurement of distance, location of features such as query formulation

一个用vb对mapinfo做二次开发的例子,此例子的功能虽然简单,但含盖了很多知识点,如mapinfo的回调,各种空间功能的实现等-with a pair of MapInfo do the secondary development of examples, examples of this function is simple, it covers a lot of knowledge, such as MapInfo callback, the space functional realization

对Arcgis进行编程的一个实例,希望对大家有所帮助-ArcGis programming of an example, in the hope that U.S. help