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The Tin House Courtyard is a property of the National Capital Commission (NCC) in Ottawa, Canada. The site is located within the ‘Mile of History’, a historical route running from Parliament Hill to t...
One of the outputs of mapping activity in Indonesia is Digital Terrain Model (DTM). DTM generated by stereo plotting with photogrammetry concept, where Indonesia Topography Map at medium scale using S...
The integration and visualization of geospatial data on a virtual globe play an significant role in understanding and analysis of the Earth surface processes. However, the current virtual globes alway...
The triangular irregular network (TIN) is the most commonly used digital elevation models. However, because there is no boundary information contained in LIDAR data, and the LIDAR dataset containsdata...
Based on colour images acquired from unmanned planes, we use projective transformation formula to eliminate the perspective distortion observed in overlapping area in two images and get big frame mosa...
Algorithms and software for correct reconstruction of the terrain surface by using data acquired by digitization of existing maps have been developed. The software enables efficient high quality forma...
With the development of 3D GIS, the visualization of the earth’s surface is more and more important. In order to improve the efficiency and the precise of the terrain visualization, it is essential to...
Triangulated Irregular Network (TIN) is a high-effect means expressing the terrain surface in the computer, compared with GRID model, TIN model can use less sampling to approach the terrain surface pr...
Present algorithms for D-TIN are far insufficient for the dynamic updating of CD-TIN in different applications. This paper, based on improvement to present insertion and deletion algorithms for D-TI...
To insert restrained edges into TIN is of great necessity in many fields. At present, for the need of mass data processing, it is expected that the time efficiency of the algorithm be higher and high...
Geographical Information System (GIS) software often models a Digital Terrain Model (DTM) by using triangulations (TINs). Computer Aided Design (CAD) is then used to model complex city structures an...
SEGMENTATION OF TIN-STRUCTURED SURFACE MODELS.
The regular grid elevations database that the Institut Cartogr`afic de Catalunya has since 1987 is insufficient for certain applications. For this reason, we started the development of a new database....
Digital Elevation Model (DEM) is an important topographic product and essential demand for many applications. Traditional methods for creating DEM are very costly and time consuming because of land su...
传统制图综合中针对水系、地貌等不同地理要素的分治策略,往往导致综合后要素目标之间在空间与语义上的冲突。本文考虑地形与河流之间的空间依赖性,提出了一种等高线簇与河网协同的制图综合方法,即利用两种要素目标顶点在约束D-TIN描述下的空间邻近关系,并通过提取和组织谷地等高线弯曲段数据,构建两要素有效协同关系。在此基础上将等高线按所属地形区域划分为不同区段,然后根据河网层次化选取的结果,分别进行针对性的协...

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