Linear Symbol Plotting Algorithm Based on Centripetal Catmull-Rom Spline

In order to improve the effect of generating linear symbols in situational plotting, eliminate the "sharp corners" and "self-intersection" that occur in the plotting process, and improve the accuracy of curve fitting, this paper proposes a linear symbol plotting algorithm based on centripetal Catmull-Rom spline curve, and compares the plotting effect of this algorithm with traditional spline curve algorithm. The experimental results prove that compared with the traditional curve plotting algorithm, the proposed algorithm has the characteristics of fewer control points and good fitting effects, which improves the plotting efficiency.