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[GIS program] RTreeTemplate DL : 0: 创建空间索引结构R树的源程序，解压后的文件中有readme文档。-create spatial index R-tree structure of the source, the paper after extracting a readme file.
Date : 2025-12-20 Size : 14kb User : 周琳
[GIS program] 基于DCT变换的图像编码方法研究 DL : 0: 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 effect" but we can speed up the coding speed.
Date : 2025-12-20 Size : 4.78mb User : lzy
[GIS program] GIS界面源码 DL : 1: 一个类似于vc开发界面的效果。可以动态更换视图。可以显示树型控件，鹰眼，状态输出栏等效果。-an interface similar to the vc development results. Views can be dynamically changing. Show tree controls, Hawkeye, state output column such effects.
Date : 2025-12-20 Size : 1.9mb User : 贾明
[GIS program] 019 DL : 0: 用VC++6.0编写，树状导航界面系统。通过窗体胡分割技术-With VC++ 6.0 preparation, tree navigation interface system. Hu partition through the form of technical
Date : 2025-12-20 Size : 1.99mb User : guoxinli
[GIS program] MapGIS2 DL : 0: 一个类似于vc开发界面的效果。可以动态更换视图。可以显示树型控件，鹰眼，状态输出栏等效果-The development of an interface similar to the effects of vc. Dynamically replace the view. Can display a tree control, Eagle Eye, such as the effect of the state of the output column
Date : 2025-12-20 Size : 1.38mb User : 方波
[GIS program] RTreeTemplate DL : 0: R树，具有搜索，添加，删除节点能，利用R树，可以为空间搜索速度带来很大的提升，是GIS中必备的一种算法-R tree, with the search, add, delete nodes can use R trees, you can search for the space a great deal of speed upgrade is necessary for GIS in an algorithm
Date : 2025-12-20 Size : 14kb User : name
[GIS program] Rstar_Berchtold.tar DL : 0: R*树，具有添加，删除，查询节点功能，是搜索算法中的一种，常用于GIS软件中。-R* tree, with add, delete, query node function, is a search algorithm, commonly used in the GIS software.
Date : 2025-12-20 Size : 30kb User : name
[GIS program] Pyramidtree.tar DL : 0: 金字塔树，具有添加，删除，查询节点功能，是搜索算法中的一种，常用于GIS软件中。-Pyramid tree, with add, delete, query node function, is a search algorithm, commonly used in the GIS software.
Date : 2025-12-20 Size : 61kb User : name
[GIS program] 20061226184536 DL : 0: 这是一个做树形菜单的的demo，仅供参考，我也是刚下，不会用的-This is a tree menu to do the demo, for reference purposes only, I am also just under, will not use the
Date : 2025-12-20 Size : 209kb User :
[GIS program] A_Spatial_Index_to_Improve_the_Response_Speed_of_W DL : 0: 多尺度特性是指地图比例尺决定着地图显示内容的详略.基于R-tree的数据访问方法与多尺度性和成批性不相适应,存在“同级要素弱簇聚”和“I/O粒度偏小”两大问题- The access method based on R-tree is not adaptive to the multiscale and batch feature. It has two problems: (1) the data records of features of the same level are not clustered in disks (2) the granularity of data I/O is too small.
Date : 2025-12-20 Size : 39kb User : gong
[GIS program] Rtree_code_of_C DL : 0: R树算法的c实现，包括了索引建立，窗口查询和对象删除功能-R-tree
Date : 2025-12-20 Size : 15kb User : 方文崇
[GIS program] batch_decision_tree DL : 1: envi软件，调用决策树，经过实测可用。前提装envi-envi software, called the decision tree, after the measured available. Premise equipment envi
Date : 2025-12-20 Size : 24kb User : lm
[GIS program] GIS DL : 0: 利用MFC底层开发的二维GIS管理软件,包括图层管理,二维浏览,属性查询,图形编辑(点选,旋转,缩放,平移等),采用树结构对GIS对象进行管理以前就发过,不过上传的时候数据自动丢失了,下载已超过千次,均是最好评论,感谢大家支持,现在重新上传,这是以前的记录 GIS.rar, 1689KB,下载 1018 次 -MFC Development using two-dimensional GIS management of the underlying software, including layer management, two-dimensional browsing, attribute query, graphics editor (click, rotate, zoom, pan, etc.), using tree structure to manage the object of GIS have made before, However, when the data is automatically uploaded is missing, download over a thousand times, are the best comment, thank you for support, now re-upload, which is previously recorded GIS.rar, 1689KB, downloaded 1018 times
Date : 2025-12-20 Size : 3.66mb User : 宋启波
[GIS program] rtree DL : 0: R树空间索引，R树是在B树的基础上建立的。-R-tree spatial index, R tree is established on the basis of B-tree.
Date : 2025-12-20 Size : 3.79mb User : 婷飞
[GIS program] GIS_Net2008 DL : 0: 【说明】本代码是在本站作者(宋启波)提供的基础上修改的，其中修改了以下内容：原来代码是vc6.0版本，现在修改为.net2008版本，完成版本改造，并经过测试，在.net2008 .net2010上测试通过；改造过程中修改了多个地方，增加几个版本不兼容的函数等，总之，改造比较大，花了1整天。原说明如下：利用MFC底层开发的二维GIS管理软件,包括图层管理,二维浏览,属性查询,图形编辑(点选,旋转,缩放,平移等),采用树结构对GIS对象进行管理,下载已超过千次,均是最好评论,感谢大家支持。-[Note] this code is in the site author (Song Qibo) based on the revised offer, which modified the following: The original version of the code is vc6.0 now modify. Net2008 version, complete version of the transformation, and tested in . net2008. net2010 on the test transformation process to modify a number of places, adding several incompatible versions of functions, etc., in short, the transformation is relatively large, it took a whole day. Original description is as follows: using MFC underlying the development of two-dimensional GIS management software, including layer management, two-dimensional view, attribute query, graphics editor (click, rotate, zoom, pan, etc.), using a tree structure to manage the GIS objects, Download has more than one thousand times, are the best reviews, thank you for support.
Date : 2025-12-20 Size : 1.63mb User : 邢星火
[GIS program] QUERYsplay DL : 0: 一个动态线段树，支持添加，修改节点，可以进行区间求和（通过修改ps函数可以做到更多，详情见代码）-A dynamic segment tree, supports add, modify nodes can be summed interval (ps function can be done by modifying more details see code)
Date : 2025-12-20 Size : 1kb User : 国道209
[GIS program] 双击坐标获取gridview某一行的值 DL : 0: 用asp.net开发的一个百度地图的网格营销系统，是大学生创新计划开始的时候做的一个例子，包括地图标注，地图区域的自动获取，动态树形结构的生成等，比较完整的一个项目。(A Baidu map grid marketing system developed with asp.net is an example of a college student's innovation plan, which includes map tagging, automatic acquisition of map area, generation of dynamic tree structure and so on, and a relatively complete project.)
Date : 2025-12-20 Size : 7kb User : cor33