Sun, 11 Mar 2007 08:50:00 GMThttp://blog.csdn.net/maweifeng/http://blog.csdn.net/maweifeng/archive/2007/03/11/1526084.aspxhttp://blog.csdn.net/maweifeng/comments/1526084.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1526084.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=15260843sNews在2月份增加了ITSUN的网站统计，其中有搜索引擎关键字统计，结果有点意思，可以看看。<img src ="http://blog.csdn.net/maweifeng/aggbug/1526084.aspx" width = "1" height = "1" />Sun, 11 Mar 2007 16:50:00 +0800Marshttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526084.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526084.aspxMarshttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526083.aspxhttp://blog.csdn.net/maweifeng/comments/1526083.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1526083.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1526083Photosynth无疑会对目前的测绘和GIS学科的摄影测量，三维建模起到久远的影响。如果只是根据一般的照片就可以建立现实的三维模型，那么无疑会大大降低三维模型的构建成本。而且由于照片的存在，还可以得到现实的情景，这是一般建模方式不具备的优势。<img src ="http://blog.csdn.net/maweifeng/aggbug/1526083.aspx" width = "1" height = "1" />Sun, 11 Mar 2007 16:49:00 +0800Marshttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526083.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526083.aspxMarshttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526082.aspxhttp://blog.csdn.net/maweifeng/comments/1526082.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1526082.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1526082来自：http://earthissquare.com/2007/02/25/python-scrīpting-in-world-wind/ 很酷的东东。<img src ="http://blog.csdn.net/maweifeng/aggbug/1526082.aspx" width = "1" height = "1" />Sun, 11 Mar 2007 16:48:00 +0800Marshttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526082.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/03/11/1526082.aspxMarshttp://blog.csdn.net/maweifeng/archive/2007/02/25/1514032.aspxhttp://blog.csdn.net/maweifeng/comments/1514032.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1514032.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1514032Worldwind 控件版<img src ="http://blog.csdn.net/maweifeng/aggbug/1514032.aspx" width = "1" height = "1" />Sun, 25 Feb 2007 23:25:00 +0800Marshttp://blog.csdn.net/maweifeng/archive/2007/02/25/1514032.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/02/25/1514032.aspxMarshttp://blog.csdn.net/maweifeng/archive/2007/02/10/1507262.aspxhttp://blog.csdn.net/maweifeng/comments/1507262.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1507262.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1507262iPhotoMEASURE提出一个新概念，使用一架数字照相机，甚至用 手机 照相，再使用它 开发 出的 软件 就可以对所拍摄图片上的任何物体进行测量，方法称为“数字目标（DigiTarget）”，数字目标对照片确定一个参照系，一种是7.5 x 7.5英寸，另一种是15 x15英寸针对的是野外目标，软件用数字目标来计算照片上物体的长度，iPhotoMEASURE声称精确度可以达到99.5%。目前还没有加入位置的概念，如果加入了，是不是会对靠复杂的 立体像对 测量的 测绘 行业产生冲击呢。<img src ="http://blog.csdn.net/maweifeng/aggbug/1507262.aspx" width = "1" height = "1" />Sun, 11 Feb 2007 07:28:00 +0800Marshttp://blog.csdn.net/maweifeng/archive/2007/02/10/1507262.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/02/10/1507262.aspxMarshttp://blog.csdn.net/maweifeng/archive/2007/01/23/1491016.aspxhttp://blog.csdn.net/maweifeng/comments/1491016.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1491016.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1491016This is my analyse about how google map works, et specially how the tiles are encoded. Google map uses pre-rendered tiles that can be obtained with a simple url. This article explains how to build the url for a tile from its geo coordinates (latitude/longitude)<img src ="http://blog.csdn.net/maweifeng/aggbug/1491016.aspx" width = "1" height = "1" />Tue, 23 Jan 2007 21:30:00 +0800maweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/23/1491016.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/01/23/1491016.aspxmaweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485703.aspxhttp://blog.csdn.net/maweifeng/comments/1485703.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1485703.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1485703WW的三维模型（贴图不说话）<img src ="http://blog.csdn.net/maweifeng/aggbug/1485703.aspx" width = "1" height = "1" />Wed, 17 Jan 2007 22:43:00 +0800maweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485703.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485703.aspxmaweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485698.aspxhttp://blog.csdn.net/maweifeng/comments/1485698.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1485698.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1485698也许下一个10年会有一个趋势，即空间数据的应用会越来越趋向于构建在一般数据库的空间支持之上，而避开目前的商业和开源GIS平台，一个结果就是目前的GIS平台的边缘化，这个趋势从Java社区的JTS以及相关的GeoTools等的应用应该看出一些。<img src ="http://blog.csdn.net/maweifeng/aggbug/1485698.aspx" width = "1" height = "1" />Wed, 17 Jan 2007 22:42:00 +0800maweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485698.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/01/17/1485698.aspxmaweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/10/1478612.aspxhttp://blog.csdn.net/maweifeng/comments/1478612.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1478612.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1478612ArcGIS 9.0引入 Python ，作为其 Georocessing 的首选脚本编程语言，并使用PythonCOM直接调用作为COM对象的GP（Georocessing的主对象）对象，这个办法是最容易实现的办法，但问题多多。加上调用方式采用类似Shell的调用，Python在ArcGIS 9.0中形同虚设。前面的Blog里有过多次说明。 ArcGIS 9.2的Python支持去掉的采用PythonCOM的方式，采用C/C++扩展了一个Python对象（GP），这样，Python就可以直接调用该对象，无须启动ArcGIS（由GP来调用AO或者ArcGIS），架构上上了一个台阶。<img src ="http://blog.csdn.net/maweifeng/aggbug/1478612.aspx" width = "1" height = "1" />Wed, 10 Jan 2007 09:32:00 +0800maweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/10/1478612.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/01/10/1478612.aspxmaweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/09/1478589.aspxhttp://blog.csdn.net/maweifeng/comments/1478589.aspx0http://blog.csdn.net/maweifeng/comments/commentRss/1478589.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1478589数据互操作 方面，ArcGIS系列确实是越来越好，特别是9.1以后。这个功能在实际中应该用处比较大，知道的人不是很多，希望对大家有所帮助。 <img src ="http://blog.csdn.net/maweifeng/aggbug/1478589.aspx" width = "1" height = "1" />Wed, 10 Jan 2007 07:59:00 +0800maweifenghttp://blog.csdn.net/maweifeng/archive/2007/01/09/1478589.aspx#Feedbackhttp://blog.csdn.net/maweifeng/archive/2007/01/09/1478589.aspxmaweifeng