Mapping method based on common reinforcement diagram parameter architecture of segment prefabricated and assembled box girder

The invention relates to a mapping method based on a common reinforcement diagram parameter architecture of a segment prefabricated and assembled box girder, which comprises the following steps: a user edits parameters and stores the parameters as a parameter file, and the parameter architecture depends on a json format and is divided into Project, Part and Volume levels; the parameters are sent to a drawing program in a message form; the drawing procedure is started after the drawing program receives the drawing message, the architecture of the drawing program corresponds to the parameter architecture in a one-to-one mode, the drawing program is divided into three levels of classes including Project, Part and Volume, and when the drawing program is executed, parameter files are read firstly, parameters belonging to each class are read, layer-by-layer calling is carried out, and finally a drawing is formed. Based on a steel bar drawing parameter framework, a user only needs to input key parameters of steel ba