1. A method of visually confirming at a work site the accuracy of measurements representing the shape of an object, comprising: inputting into a microprocessor a plurality of measurements representing a plurality of reference points corresponding to said object's shape; storing said measurements in said microprocessor; using said microprocessor to process said inputted measurements and to individually display each of said plurality of reference points corresponding to said measurements on a monitor; and visually confirming the accuracy of each of said measurements by comparing said image displayed on said monitor with said object.