Digital generation method and system of three-dimensional model protection sleeve, medium and equipment

The invention discloses a digital generation method and system for a three-dimensional model protection sleeve, a medium and equipment, and the method comprises the steps: firstly, appointing the installation direction of a protection sleeve model, and carrying out the coordinate transformation of an input model through a coordinate transformation matrix; the unclosed input model is preprocessed, and then slicing processing is carried out to obtain contour lines of all layers; constructing a polygon through symmetric difference operation, and carrying out updating iteration on the generated polygon by adopting a polygon updating algorithm through preset embedded parameters; and restoring the updated polygon into a corresponding new contour line, performing surface reconstruction on the protective sleeve model by using a triangulation method, and finally outputting the protective sleeve model. The digital generation method is high in automation degree, and compared with a traditional manual design method and a