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- Walkthrough in massive terrain data is a key technology and difficult problem of GIS, VR, game and simulation, etc. 摘要大范围、海量地形数据的快速漫游是GIS、虚拟现实、游戏、仿真等领域的关键技术与难点之一。
- The storage and management of massive terrain data is the key of large-scale terrain roaming. 海量地形数据的存储与管理是大规模地形实时漫游系统的关键。
- The Implementation of High-bandwidth Network Based Real-time Interactive Browsing for 3D Massive Terrain Data 高速网上3维海量地形数据的实时交互浏览的实现
- massive terrain data 海量地形数据
- An organization approach of massive terrain dataset based rectangular bintree and non-pointer data index is put forward for organization and management of massive terrain dataset. 摘要 针对海量地形数据组织与管理，提出了一种矩形二叉树模型和无指针数据索引相结合的地形数据组织方法。
- Experimental results showed that the method is very efficient and suitable for applications of massive terrain rendering and interactive walkthrough. 实验结果表明，该算法高效可行，适合于海量地形场景的快速渲染和交互漫游应用。
- The primary bug of this algorithm is that it discards the relative position information of terrain data and the normalized processing. 因为地形熵算法丢掉了地形的相对位置信息及对地形数据做了归一化处理,使得其在地形跟随/地形回避中的应用存在着匹配误差容易发散的问题。
- Experimental results on real terrain data show that the algorithm based on one DAG improves the computing performance of an extraction of terrain. 实验表明，基于DAG表示的地形抽取算法利用变化数据间的空间关系提高了计算性能。
- The high precision terrain data in the STK/Terrain modul is used as data sources, which is converted to the OpenFlight format model that Creator or Vega can discriminated . 以STK/Terrain 模块中的高精度地形高程数据作为数据源,将其转换成Creator 和Vega 能识别的OpenFlight 格式模型;
- The model is based on a collection of a divisional terrain data defined as simplicial complexes arranged into a partially ordered set by time and space. 模型把子区域地形几何数据定义为单纯复合形集，按地形变化时间顺序和空间关系组织成一个偏序集。
- Another new element is the 'threat intervisibility' system.This system allows for terrain data and known enemy field positions to be plotted on a grid map. 另外一个新组件是“威胁可视化“系统，这一系统可以在网格地图上绘出地形数据和已知的敌人野外驻点。
- A Fast Walkthrough Method for Massive Terrain Based on Data Block Partition 一种基于数据分块的海量地形快速漫游方法
- Divided metadata cluster provides high-effective and high-availablemetadata service, and OSD cluster with parallel terrain data transmission provides high t... 这类系统对地形绘制的效率有很苛刻的要求,需要高效的地形绘制算法和数据调度策略。
- The achievements of this thesis can besummarized as fOllows:Present a simple description of DTM(Digital Terrain Model) and the technology ofterrain modeling with reguIar and irregular terrain data. 1）在对数字地面模型建模方法进行简要小结的基础上，对基于规则格网和不规则三角网的地形建模技术进行了研究。
- The statistical fractal features of the original coarse terrain data set were determined through linear regression, based on which a denser terrain can be derived by means of bilinear interpolation. 首先通过线性回归得到原始稀疏三维地表数据的分形统计特性，再以此特性??基础采用双线性插值的思想来构造更??稠密的自然地貌。
- In this dissertation, focused on the aerial image matching based terrain data acquisition and DEMs based digital terrain analysis, some theory, approach and key technical problem of digital terrain modeling are discussed. 本论文围绕着数字地形模拟的相关理论方法和关键技术问题进行了讨论，其中重点研究了基于航空遥感影像的地形数据获取和基于DEM的数字地形分析问题。
- The task selects the up to the minute mesoscale numerical model as our forecasting model and use thrice fixed nesting and terrain datum of down to dale (highest precision data of 30s) as our terrain datum in the endothecium. 本文选择了当今最为先进的中尺度数值模式MM5V3作为数值预报模式，采用三层固定网格嵌套，选用其最新提供的30S高精度资料作为内层重点考察小区的地形资料。
- I’ll demonstrate how to use this algorithm to statically tessellate an array of height data that can be used for geometric terrain data, terrain texture maps, and cloud texture maps. 这是一种方式，另一种方式是，自己出牌后，首先更新自己的桌面，显示出牌，同时发送给服务器，服务器只要将出牌数据发送给其余的玩家。
- In addition，dynamical management of terrain dataset in view field was implemented effectively by visible detection based on the simplified view frustum and terrain data prediction strategy. 此外，简化视见体的可见性判断和数据预取策略，实现可见数据的动态管理。
- The wedding got massive media coverage. 婚礼得到大众传播媒介的广泛报道。
