建立基于MATLAB的测量控制网设计工具箱

Development of MATLAB toolbox applied to survey control meshwork design

利用MATLAB软件平台 ,按照测量控制网设计的流程 ,编制了从输入地形图、网型设计、精度估算到方案修改的各个子程序 ,并设计了易用美观的工具箱界面 .在讨论算法时指出 :量取坐标及点注记是利用函数的递归调用对鼠标单击 ,移动 ,释放事件设计相应的功能 ,利用“Position”属性设置输入图形在坐标系中的位置 ,图形的形状由其数值矩阵的行列数确定 ,精度估算则采用附有限制条件的间接平差法 .通过实例运行 ,验证了其正确性、可靠性。

With MATLAB software,according to survey control meshwork design,a research is done covering each subprogram about inputting relief map,designing meshwork model,precision estimate,project modification and designing a nice and simple toolbox. By recursion use function, in case of mouse clicking,moving or releasing, the corresponding function to survey coordinate and footnote point can be designed. By using the 'position' attribute we can design the position of import figure in the coordinate, the number of row and arranger in numerical value matrix confirm the shape of the figure.By using indirect adjustment with limit condition to estimate precision and by experiment, the toolbox correctness, dependability and practicability are proved.