几种模型在平面坐标转换中的应用

Application of Several Models to Plane Coordinate Transformation

针对在平面坐标转换时选取不同模型将得到不同的转换精度,通过所编程序进行实验,对比了四参数模型、六参数模型和二次曲面模型的转换精度。实验表明,当合理选择转换点时二次曲面模型在平面坐标转换中精度高于四参数模型和六参数模型的转换精度。

Aiming at the coordinate transformation between two 2D coordinate systems,diffrient accuracies from diffrient models will be achieved.This paper utilized the program to compare the accuracy of four-parameter model,six-parameter model and second-degree polynomial model.Results from testing showed when reasonable choose transforming points,the accuracy of second-degree polynomial model is better than the accuracies of four-parameter model and six-parameter model in 2D coordinate transformation.