在山区高速公路建设中，因受地形地物限制，将线路敷设在陡坡上的情形较为常见。
Due to the limitation of terrain and culture on construction of expressways in mountainous areas, it is common to lay out lines on abrupt slope.
同时，本文还从地形三维可视化、地形LOD显示技术和地形地物之间融合的方法方面作了初步研究，并结合相关实验进行了分析。
At the same time, this article also studied the terrain visualization, terrain LOD techniques, the feature fusion method, and an example is analyzed.
建立了飞行器、地形、地物的三维模型，利用计算出来的数据进行飞行器的实时三维视景仿真模拟。
The three dimension module of aircraft, terrain and object were erected, and real time three dimension visual simulation of was executed through computed data.
建立了飞行器、地形、地物的三维模型，利用计算出来的数据进行飞行器的实时三维视景仿真模拟。
The three dimension module of aircraft, terrain and object are erected, and real time three dimension visual simulation of is executed through computed data.
在对城市景观主要建模对象进行分类的基础上，建立了三维空间数据结构，实现了地形和地物模型三维重建的系列算法。
Based on the classification of the primary modeling objects in the city scene, we separately rebuild the model of the terrain and objects according to the 3d spatial data structure.
本文着重介绍在遥感影象分类中应用数字地面模型（DTM）改正地物反射光谱中地形影响的方法和试验。
In this paper the methods and experiments for applying the digital terrain model(DTM) to improve the classification accuracy are introduced.
根据地物模型与地形三角网关系，将种类繁多地物模型划分为两大类。
Based on the relation of geometric objects and terrain triangular irregular network, the various geometric objects are divided into two parts in this paper.
现状图是土地整理项目区工程实施前地形和地物的真实反映，也是项目区规划设计的基础图件资料。现状图的测绘质量直接决定着规划设计和工程实施的质量。
Present map is the true reflection of terrain and features before project implementation in land consolidation project area, and the basic map and material for the planning and design of project area.
地形图数字化误差造成地物几何形变，采用测量平差的理论方法可以减弱形变。
The digitalization errors of topographic map result in geometry change for the objects on the earth. We can reduce geometry change by means of measuring adjustment.
改进基于投影密度的计算，进行地形、地物分离，并提取其特征信息，得到基本的三维激光模型。
Based on the computing of projection density, it separates the terrain and the objects, extracts the feature information, and gains the basic 3d laser model.
给出了平面等高线地形图，带地物符号的工程地形图，立体等高线图及逼真地形图等多种造型方法。
And various methods of modelling, that is, contour maps, engineering maps with surface feature symbols, 3 D contours and realistic maps are given.
研究地形图中地物图符的提取方法 ，并以居民区为例实现其特征信息的提取 。
Studies methods of recognizing ground symbols in relief maps to extract data that residential symbols represent.
本文给出一种利用激光传感器与导航POS组成的车载三维激光数据快速采集系统，对铁道两侧的地形、地物进行三维扫描。
This paper presents a 3d laser scanning rapid data acquisition system with the laser sensor and POS, which is designed for 3d scanning the both sides of railway.
本文给出一种利用激光传感器与导航POS组成的车载三维激光数据快速采集系统，对铁道两侧的地形、地物进行三维扫描。
This paper presents a 3d laser scanning rapid data acquisition system with the laser sensor and POS, which is designed for 3d scanning the both sides of railway.
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