雷达数据显示与分析，包括雷达P显和E显两种方式，同时还可设置雷达量程、指定目标航迹数据显示等，该代码实用，值得参考。-Radar data and analysis, including radar and E P were significantly in two ways, but can also set the radar range, specify the target track data display, the code useful as reference.