1. A method of reproducing an article based on a physical model comprising the steps of: scanning the physical model by a light mensuration technique to obtain a set of scan data indicative of dimensional characteristics of the model; converting the set of scan data into a first set of equations representative of characteristics of the physical model in a plurality of dimensions; computing a second set of equations derived from predetermined data based on dimensional characteristics of the model wherein the dimensional characteristics of the second set of equations are based, at least in part, on wire frame data including trim line data and feature line data for the article; and recording the set of equations representative of the dimensional characteristics of the physical model in a data format useful for reproduction of the article.