射电天空与观测源分布可视化软件     

喻业钊  ;韩金林 《天文研究与技术》2014,(3):305-310

射电天文观测需要事先对射电源分布及天空背景有清晰的了解。目前国内射电天文台站缺乏射电天空与观测源分布可视化软件来对射电天空背景和观测源进行显示。开发一款简洁、移植性强的可视化软件,方便观测者直观地了解射电天空,帮助他们制定合理的观测计划。该软件使用C语言及PGPLOT子函数库编写,在Linux系统下运行,实现了星空的实时查询和按时查询,并支持用户更改观测台站、天空背景和射电源表等。该软件具有很好的扩展能力,将面向国内各天文台站及天文爱好者开源发布。  相似文献   

安塞油田可视化决策系统研究     

周日平 申平李建强  苟少明 《地球信息科学学报》2001,3(1):46-49

 利用安塞油田可视化决策系统,将基础勘察数据油田基本图件和油井数据有效的管理起来,可作统计分析、档案更新、数据查询。这不仅对属性数据可采用数据库管理,而且通过空间数据对属性数据的空间分布特征进行综合分析,实现属性数据、空间数据可视化  相似文献   

基于Web服务的多源海洋温度场时空过程可视化研究     

杨峰  张丹  杜云艳  苏奋振  肖如林 《测绘与空间地理信息》2013,36(7):15-18

分析了当前海洋温度场数据在数据和模型共享与应用方面存在的不足,结合Web Service技术,提出在分布式网络环境下将海洋温度数据与应用模型封装为web服务的方式,实现多源海洋温度场数据时空过程可视化应用的方法。并基于该方法构建了"多源海洋温度数据动态集成与远程可视化系统平台"。通过该平台的构建,为用户提供海洋温度数据的透明的Web应用,实现了基于网络对多源海洋温度场数据的集成与交互式时空过程可视化表达。  相似文献   

广州市“数字绿化”仿真应用的城市园林景观3维可视化技术研究     

卢智婷;林慧敏;邹镰钊 《东北测绘》2013,(4):147-149

广州市大力开展"数字绿化"管理平台建设,依托其中的广州市林业和园林局3维实景展示项目,以仿真应用为目的,研究基于CAD设计施工图和普查获取的城市园林景观GIS数据的3维可视化技术,具体叙述了相关的技术方法和流程。  相似文献   

Polygon‐based texture mapping for cyber city 3D building models     

F. Tsai  H.‐C. Lin 《International journal of geographical information science》2013,27(9):965-981

The three‐dimensional building model is one of the most important components in a cyber city implementation. Currently, however, most building models do not have sufficient and accurate texture information. The lack of texture not only makes 3D building models less realistic in visualization, it may also fail to provide needed information in intricate applications. This study developed a polygon‐based texture mapping system to produce near photo‐realistic texture mappings for 3D building models. Textures of building exteriors were generated from mosaics of close‐range photographs acquired with commodity digital cameras. The developed system integrated multiple digital photographs to create texture mosaics that were continuous in geometric outlines and smooth in colour shadings, and correctly mapped them onto corresponding building model façades. A test example demonstrated that the resultant building model had more complete and accurate texture features as well as a near‐photo‐realistic appearance.  相似文献   

基于GML3.0与Direct3D的三维地形可视化研究与实现   总被引：1，自引：1，他引：0  

唐中实  王淑伟  尹平  谢喆  张肃  朱贤泽 《测绘科学》2006,31(1):69-71

三维地形可视化是三维GIS中的重要内容,本文分析了当前实现三维地形可视化的主要方法,对地理标记语言GML3·0以及三维图形库Direct3D进行了研究,并提出了利用GML3·0对空间地理数据进行编码以及利用Direct3D显示三维地形的方法,最后基于以上研究成果完成了一个三维地形可视化原型系统应用实例。  相似文献   

Geologic site characterization for deep nuclear waste disposal in fractured rock based on 3D data visualization     

S. A. Tirn  P. Askling  S. Wnstedt 《Engineering Geology》1999,52(3-4):319-346

  相似文献   

Visualizing Upwelling at Monterey Bay in an Integrated Environment of GIS and Scientific Visualization   总被引：2，自引：0，他引：2  

Yafang Su  Yongwei Sheng 《Marine Geodesy》1999,22(2):93-103

Oceanographic data are complex in that they incorporate multiple measurements and various scales. They are truly three-dimensional, and often vary in time. As the ability to acquire data is constantly being enhanced by the introduction of new and increasingly sophisticated instruments, it is challenging for oceanographers to inspect oceanographic processes by analyzing the complex data conventionally. In this article, we discuss an integrated GIS/visualization approach to visualize oceanographic data in Monterey Bay in order to get a better understanding of upwelling processes. The GIS system performs data interpolation, unifies map projection, and filters the processed data to a computer visualization package. The multidimensional visualization and animation features of the visualization tool are used to gain insight into marine upwelling processes. In such an integrated environment, the water properties (i.e., temperature, salinity, and density) in Monterey Bay during upwelling are visualized, and the characteristics of upwelling are examined. The center of upwelling and the maximum depth of upwelling in Monterey Bay during the 1995 upwelling season are identified. The differences in temperature changing patterns between a typical upwelling year and an El Nino year are shown in this study. The integration of GIS and visualization makes it easier for oceanographers to discover and understand upwelling.  相似文献   

基于cGML和Mobile SVG的手机地图可视化研究     

查灵  邬群勇  王钦敏  张爱国 《测绘信息与工程》2010,35(5):6-7

提出了基于Mobile SVG的移动地图可视化的设计思路,研究了Mobile SVG的坐标系统和坐标转换,实现了Mobile SVG移动地图的可视化。  相似文献   

Web-based terrain and vector maps visualization for Wenchuan earthquake     

Liqiang Zhang  Zhizhong Kang  Jonathan Li  Ling Yang 《International Journal of Applied Earth Observation and Geoinformation》2010

This paper presents a Web-based three-dimensional Geographic Information System (3DGIS) for Wenchuan earthquake disaster assessment. With the help of information technology resources, geoscientists are in a position to learn more about the structure of the earthquake in efficient ways. Due to huge spatial datasets of Wenchuan, China and narrow network bandwidth, general-purpose applications are difficult to transmit and visualize these datasets on the network. The application aims to interactively represent and transfer large spatial objects of Wenchuan County, China, as well as for dynamically rendering them in networking environments. Level-of-detail (LOD) terrain models and vector maps are created, and the server–client architecture is presented. The application provides an effective way for powerful access and manipulation of large-scale Wenchuan datasets.  相似文献