基于MATLAB的农田信息可视化实现

The Visual Implementation of Field Information Based on MATLAB

通过可视化技术能够直观地表现农田信息的空间变异。使用GPS接收机在农田开展定点信息采集,应用测量得到的地块高程数据,利用MATLAB的绘图功能,绘制了采样点散点图,并通过数值插值和Delaunay三角剖分两种方法实现了农田高程信息的可视化。此方法可用于土壤养分图、农田杂草以及病虫害分布图等农田地理信息的可视化表达中。

The visualization technology can display the spatial variation of field information intuitively.Using the GPS receiver in the farmland fixed point information acquisition,the field altitude data which obtained by the survey,MATLAB＇s cartography function,the sampling points scatter diagram was drawn.Through two methods include the value interpolation and the Delaunay triangulation,the field elevation information visualization has realized.This method can use in farmland geography information visualization expressions such as soil nutrient chart,farmland weed,plant disease distribution map.