CAD automatic building curtain wall decoration panel typesetting and data output method and system

The invention discloses a CAD automatic building curtain wall decoration panel typesetting and data output method and system, and the method comprises the following steps: S1, generating a size number diagram: S11, opening AutoCAD, and closing object capture; s12, selecting dimension marks in the width direction, and calculating the number of plates in the width direction; s13, size marks in the height direction are selected, the number of plates in the height direction is calculated, and the size marks in the step S11 and the step S12 are data subjected to scale reduction processing; s14, according to the size marks in the width direction and the height direction, accurately calculating the width and the height of the characters and the insertion points of the characters in the height direction, combining the size mark contents in the longitudinal direction and the transverse direction one by one into size numbers, and drawing a size number graph; s2, typesetting and numbering all the plates from the lower l