Laser Marking Hatch Contour Generation Algorithm

In order to calculate the laser filling path of the irregular simply connected figure, we establish the parallel filling path model and contour filling path model. According to the classification of the concave and convex points, the total path of the laser filling line is calculated by dividing the polygon. For the multi-connected laser-filled images, an optimized multi-connected contour filling model is established, and the laser path is calculated according to the new polygon segmentation method. Through the model test, the path length required by the parallel filling model to fill the simply connected graph and the multi-connected graph is 9697.1m and 8762.8m respectively, and the required time is 29.1s and 30.2s respectively. The path lengths needed to fill simply connected graphs and multi-connected graphs by contour filling model are 10005.1m and 8210.3m respectively, and the required time is 65.8s and 49.7s respectively