A method for simplifying contours based on complex field reclassification
The existing automatic generalization methods have fixed thresholds for depth contours,and less considering the differences of line in different regions.Based on the complex field model of line elements,a reclassification processing method for complex field model was designed in this paper,and different simplification scales were set according to the partitioning results,thus achieving automatic simplification of multiple thresholds for contour lines.Experimental results showed that the proposed method could effectively realize the scale of"time-varying",and the overall results was better than the original generalization methods.In the process of nautical chart generalization,this method could be used to achieve automated simplification of contour lines,improve the efficiency of nautical chart production and the quality of contour simplification.
万方数据
维普
