Method for generating laser cutting program

The invention provides a method for generating a laser cutting program, which comprises: a step 1, acquiring digital graphic data of an object to be processed by using a camera and performing graphic pretreatment of the digital graph; step 2, manually defining a detection guide line in the pretreated digital graph, allowing a computer to extract coordinate data of graphic boundary points near the detection guide line under the guidance of the detection guide line, and forming a coordinate data link list of the coordinate data; a step 3, forming a graphic element data link list by using straight lines, arcs and parametric curve piecewise fitting coordinate data; step 4, smoothly connecting adjacent graphic elements by using a three-order Hermite parameter curve and filling the connected graphic elements into the graphic element data link list; step 5, converting the graphic element data link table into motion instruction of a laser cutter through post treatment and transmitting the motion instruction to a controller of the laser cutter to execute the motion instruction after the motion instruction is decoded. The method adopts machine vision and digital graphic processing technology to form main-machine interaction and therefore can generate a high-quality laser cutting program.