二维规则网格数据的等值线追踪， 追踪算法为网格追踪法， 线绘制，可配置颜色 所读取的数据的文件格式为：surfer软件的ASCii grd文件数据-2D mesh contour data tracking, tracing algorithm for tracking grid, line drawing, color can be configured by reading the data file formats : surfer software ASCii grd document

基于特定椭圆拟合的符号化目标轮廓跟踪方法 基于稳健估计的直接最小二乘椭圆拟合 椭圆拟合方法的比较研究-Ellipse fitting symbol based on the specific goal of contour tracking method is based on robust estimation of the direct least squares ellipse fitting ellipse fitting method comparison studies