ROAM算法就是通过采用分解和合并方法实时地调整三角形网格，能交互式地实现观察依赖、局部可调整的地形网格化处理，生成多分辨率的地形模型。
ROAM method adopts split and merge operations to adjust triangle meshes, can interactively perform view-dependent, locally-adaptive terrain meshing and can construct multiresolution terrain model.
为实现地形漫游，提出基于三角形二叉树的地形网格模型动态简化算法，实现了与视点相关的连续多分辨率简化及快速动态绘制。
This paper proposes a dynamic simplification algorithm for the terrain model based on the Triangle Subdivision Bi tree to realize continuous view dependent multi resolution rendering of terrain mesh.
给出了一种基于三角形内角加权和二次误差度量的三角形折叠算法来简化三角网格模型。
A triangle collapse algorithm is presented, which is based on internal angles weighted and quadric error metrics to simplify mesh models.
建立了基于不规则三角形网格有限差分法的兴化湾二维潮流数学模型，对兴化湾潮流场进行了数值模拟。
A 2-d tidal flow mathematical model of Xinghua Bay based on irregular triangular grid finite difference method was set up and numerical simulation of tidal flow field was carried out.
对于网格模型简化问题，本文提出了一种基于网格顶点曲率加权该顶点邻接三角形面积的顶点删除简化算法。
This algorithm removes vertices of the mesh according to the curvature of the vertex weighted by the area of the triangles which are adjacent to that vertex.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
通过定义三角网格模型中的两个以公共边相连的三角形构成一个空间四边形，提出了一种新的基于这种空间四边形折叠的网格简化算法。
This paper presents a method to define the quadrangle in the triangle mesh and puts forward a new mesh simplification algorithm based on quadrangle collapse.
并对其生成的表面几何模型所包含三角面片数量巨大的问题，提出一种快速有效的三角形边收缩算法进行网格简化，提高了表面模型的绘制速度。
Because 3D surface model contains huge number of triangles, a mesh simplification algorithm based on triangle edges shrinkages is presented in this paper to speed up the rendering in real time.
本文基于三角形网格划分，采用有限元法，建立了平面二维非恒定潮流数学模型。
Based on triangular grids and finite element method, a planar 2-d unsteady tidal flow mathematical model is established in the article.
地质界面模型是由煤层的顶底板插值曲面经煤层边界和断层曲面裁剪而成的，地表面模型是对原始地表数据和矿坑数据进行三角剖分得到的三角形网格。
The interpolation face of coal seams is trimmed by boundary and the closed polygons of up and down faulted blocks to form the deposit interface model. The earths surface model is founded.
针对三维扫描仪所获取的模型数据量庞大，无法直接使用扫描仪的问题，为压缩模型数据量，提出了一种基于三角形折叠网格模型化简方法。
Aimed at the problem that original model data obtained by 3-d scanner are huge and can not be used in real application, a mesh simplify method based on triangle collapse is proposed.
针对三维扫描仪所获取的模型数据量庞大，无法直接使用扫描仪的问题，为压缩模型数据量，提出了一种基于三角形折叠网格模型化简方法。
Aimed at the problem that original model data obtained by 3-d scanner are huge and can not be used in real application, a mesh simplify method based on triangle collapse is proposed.
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