VigilX与常用的地形数据库兼容。
It has been designed to be compatible with commonly used terrain databases.
建立了地形数据与图形空间的映射关系。
地形数据是在动床模型试验中必须采集的关键数据之一。
Model's terrain intelligence is necessary information for those experiments.
基于非量测数码影像的地形数据采集信息系统设计与开发。
The design and development of the topographic data extraction information system based on non-metric digital imagery.
该文提出基于网络实时交互的海量三维地形数据的流式处理方案。
Enlightened by stream medium technology, this paper proposes a method handling 3d terrain data in streaming way for real-time interaction based on network.
本文提出了一个有效的基于外存的海量地形数据实时可视化框架。
In this paper, we propose an efficient framework for large-scale terrain real-time visualization.
采用1：25万地形数据与RS分类图配合形成三维立体森林景观。
This study adopts 1:250 thousand scale image and RS classification map to set up forest landscape.
大规模的地形渲染算法需要采用细节层次来减少实际需要绘制的地形数据。
Then educes the real time algorithm of dynamic level of detail terrain rendering and gives out its realizing process in detail.
因此将CAD地形数据导入GIS数据库，是数据加工生产厂商的当务之急。
Therefore, it becomes an urgent matter for the data processing manufacturers to input CAD terrain data into GIS database.
为了实时地绘制大规模地形数据，提出了一种改进的实时连续LOD生成算法。
In order to render massive terrain data in real time, this paper presents an improved LOD algorithm.
主要讨论了如何利用改进的离散数据网格化方法快速实现离散地形数据预处理。
This thesis mainly discussed how to make use of the improved arithmetic of discrete data gridding to quickly realize discrete data pretreatment.
通过对地形数据简化分层、分块等数据处理建立金字塔数据模型来组织地形数据。
An organizing approach of data based on pyramid model using simplification, leveling and block processing technologies is put forward.
实验结果表明，该研究成果能够实现真实感海量地形数据的实时可视化与交互操作。
The experiment results show that this approach can achieve good performance for real-time rendering of massive terrain dataset.
本文主要对大规模地形数据(基于规则格网数字高程模型)的组织与可视化进行研究。
In this paper, study on organization and visualization of the massive terrain dataset mainly on Regular Square Grid data format are discussed.
国内外对海量地形数据的研究比较深入，但对具有一般意义的海量地层数据研究较少。
There are deeper research and study about large-scale terrain data all over the world, but the study about large-scale stratum data with common interest is little.
国内外对海量地形数据的研究比较深入，但对具有一般意义的海量地层数据研究较少。
The research on massive-scale geographic data was carried on for a long time. But general formation data has not been studied carefully.
该方法对数据进行分块组织，按行列顺序对数据块编号，实现对地形数据的部分读取。
It organizes data block partition, indexes data blocking based on the order of row and line, implements the local loading of terrain data.
地形匹配制导中需要使用大量的地形数据，因此有效的地形数据压缩技术是非常重要的。
In terrain based matching, a number of terrain data will be restored by the missile loaded computer, and the effective compressing method for terrain data is extremely important.
实验表明，本文提出的技术方案能够满足现在数据生产单位DWG地形数据入库的要求。
The experimental results show that the technical plan proposed here can satisfy the requirements of the data manufacturers to input DWG terrain data into database.
使用内存映射文件技术及多线程调度技术，用于管理和调度大数据量地形数据和纹理数据。
Using Memory Map File and Multi-thread dispatch technology, to manage and dispatch large terrain data and texture data.
数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。
Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
采用网格索引来组织地形数据，利用反距离高程加权平均值算法，提取TIN地形的特征点。
Terrain data is organized by grid, the article adopts height weighted average algorithm of elevation based on grid network, to extract feature point of TIN terrain.
为了以较少的地形数据呈现逼真效果，采用基于三角形二叉树的LOD方法对地形简化方法。
In order to show realistic terrain effects with less terrain data, use the improved terrain LOD simplification method based on triangle binary tree.
地形数据对于我们了解全球气候变化、土地构成、大气变化，开展区域水土流失研究非常重要。
Topographic data are critical to global changes in climate, land formations, atmospheric changes, and research in soil and water loss.
设计了一种适合网络实时传输海量地形数据的传输协议，使系统充分利用网络带宽同时又不浪费带宽。
Furthermore, one type of protocol real-timely transferring massive terrain data on network is introduced for plenty using but not wasting the bandwidth resource of network.
干扰模拟体系由地形数据预处理、气候数据预处理、植被动态模拟(含干扰)、结果分析四大模块组成。
The system comprised terrain and meteorological data pre-process module, vegetation dynamic simulation module (including disturbance) and results analysis module.
针对大规模地形数据庞大、地形绘制速度慢的问题，提出一种基于分块和包围球误差函数的地形绘制方法。
To a large number of terrain data and the slow speed of terrain rendering, presenting a terrain method based on data block and ball error metric.
针对大规模地形数据庞大、绘制速度慢的问题，提出一种基于数据分块和包围球误差函数的地形绘制方法。
Aiming at the problem of large number of terrain data and low speed of terrain rendering, this paper presents a terrain rendering method based on data block and enclosing ball error metric.
可视化是地形数据解译的关键，它为揭示海底地形与其他海洋要素之间所蕴含的关系和规律提供了独到的方法。
Visualization is the key to understanding the topographical data and provides a special way of revealing the relationship and laws between submarine landform and other Marine factors.
可视化是地形数据解译的关键，它为揭示海底地形与其他海洋要素之间所蕴含的关系和规律提供了独到的方法。
Visualization is the key to understanding the topographical data and provides a special way of revealing the relationship and laws between submarine landform and other Marine factors.
应用推荐