摘要
由于坐标系间局部变形以及点间相关性的影响，距离计算点越近的点对其影响越大，越远的点对其影响越弱。本文尝试利用Delaunay三角形的优良特性，提出了基于Delaunay三角形的移动坐标转换法，利用邻接点、邻近三角形来进行坐标转换，并把其应用于1980西安坐标系到2000国家坐标系的变换中，计算结果表明，该转换方法明显优于相似变换结果。
The points closer to the calculating point has a high influence on coordinate transformation for local distortion and relativity among points. This paper attempts to take advantage of the good properties of Delaunay triangulation and puts forward moving coordinate transformation method based on Delaunay triangulation by using adjacent points or triangles. The method is applied in datum transformation from Xi＇an geodetic coordinate system 1980 to China geodetic coordinate system 2000. The testing resluts show that the conversion method presented in the paper is evidently superior to similar transformation method.
出处
《测绘科学与工程》
2011年第1期10-14,共5页
Geomatics Science and Engineering
