剖析了 Active X Autom ation技术和 Auto CAD R14新提供的 Active X Autom ation编程接口 ,在此基础上介绍了基于 Active X Autom ation技术从 Auto CA D的 DWG文件中自动提取标题栏和明细栏管理信息的方法 ,并给出了关键技术的源程序 ...剖析了 Active X Autom ation技术和 Auto CAD R14新提供的 Active X Autom ation编程接口 ,在此基础上介绍了基于 Active X Autom ation技术从 Auto CA D的 DWG文件中自动提取标题栏和明细栏管理信息的方法 ,并给出了关键技术的源程序 .在此技术上开发出的软件包在实践中得到了较好的应用 .展开更多
This paper reviewed the developments of the last ten years in the field of international high-resolution earth observation, and introduced the developmental status and plans for China's high-resolution earth obser...This paper reviewed the developments of the last ten years in the field of international high-resolution earth observation, and introduced the developmental status and plans for China's high-resolution earth observation program. In addition, this paper expounded the transformation mechanism and procedure from earth observation data to geospatial information and geographical knowledge, and examined the key scientific and technological issues, including earth observation networks, high-precision image positioning, image understanding, automatic spatial information extraction, and focus services. These analyses provide a new impetus for pushing the application of China's high-resolution earth observation system from a "quantity" to "quality" change, from China to the world, from providing products to providing online service.展开更多
文摘剖析了 Active X Autom ation技术和 Auto CAD R14新提供的 Active X Autom ation编程接口 ,在此基础上介绍了基于 Active X Autom ation技术从 Auto CA D的 DWG文件中自动提取标题栏和明细栏管理信息的方法 ,并给出了关键技术的源程序 .在此技术上开发出的软件包在实践中得到了较好的应用 .
基金supported by National Basic Research Program of China(Grant No. 2012CB719906)
文摘This paper reviewed the developments of the last ten years in the field of international high-resolution earth observation, and introduced the developmental status and plans for China's high-resolution earth observation program. In addition, this paper expounded the transformation mechanism and procedure from earth observation data to geospatial information and geographical knowledge, and examined the key scientific and technological issues, including earth observation networks, high-precision image positioning, image understanding, automatic spatial information extraction, and focus services. These analyses provide a new impetus for pushing the application of China's high-resolution earth observation system from a "quantity" to "quality" change, from China to the world, from providing products to providing online service.
