Automatic dynamic mapping method for tunnel section through drilling and blasting method

The invention discloses a drilling and blasting method tunnel section automatic dynamic mapping method, which is based on Python and CAD interaction, and according to design specifications and supporting structure parameters, in an interaction environment built by an open source third party program library, a dynamic mapping model is established for a tunnel section. Corresponding functions of an API program of AutoCAD software are called through a Python script language to generate various layers, text styles and marking styles of a standard drawing, a standard drawing frame, a tunnel section, a lining and anchor rod primitive meeting the drawing requirements are automatically generated in a model space according to imported design parameters, annotation characters are imported and marked, and the standard drawing frame, the tunnel section, the lining and the anchor rod primitive meet the drawing requirements. And storing the drawn dwg file in a specified path. According to the method, the Python script is a