它一般生成一个实时的三维尺度空间系统来展现三维景观模型，从而产生逼真的“虚拟环境”效果。
It generates a general measure space system of real-time to execute 3d landscape models and to produce a realistic "virtual environment" results.
在保证DEM重要区域精度的条件下，加快了计算机绘制三维景观模型的速度，满足了三维可视化实时交互的需求。
Under the conditions prescribed by guaranteeing dem important area precision quickening the computer to render 3d sight model and satisfy 3d Visualization demand in real-time and interactive manner.
提出了纹理库和模型库的思想，确立了城市景观建筑物三维重建的整体思路。
The idea of texture lab and model lab and the unitary thought of city landscape's 3D reconstruction were put forward.
而在虚拟城市的构建中，城市景观模型的建立与三维可视化更是其基础核心技术。
And the city scene model and 3d visualization are the central technology in the processing of constructing the virtual city.
地形景观模型的三维可视化技术是时空一体化地理信息系统与虚拟现实中的关键技术。
The technique of 3d visualization of terrain sight model is an important technique of spatial-temporal GIS and VR.
而城市三维景观重建的核心内容是景观模型的建立，其中包括地貌模型、地物模型的建立。
The core of the 3d reconstruction of the city landscape modeling, including the landform modeling and geographical object modeling.
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.
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.
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