The study of design data extraction from design drawing with application in measurement

This study begins with the design blueprint, and the input of the geometry tolerances and dimensions into the function chart established in the CAD system. The graphic data is then extracted by means of the extract program. The designer then inputs the measuring datum and measuring parameters into the interface program. The number and characteristics of the measuring items can then be determined. All the possible measuring paths can be automatically produced by the program according to a tree structure for establishing the shortest measuring path.