1. A computer method for designing a development drawing of a developable surface, the computer method being executable within a computer and comprising: setting a control contour from a circumference surface of a 3-dimensional model; executing a first algorithm LIDM-GC-Dvlp within the computer to search out a control point set; outputting a control point of a profile curve; imaging, within the computer, a developable surface type general circumference surface; modifying a design of the user viewable development drawing of a developable surface by using user input depending on the imaging result; selecting a developable surface segment intended to generate the development drawing; executing a second algorithm LIDM-GC-Plane-Dvlp within the computer for the control point to generate the development drawing; and drawing the development drawing on an essentially planar object such that the entire surface of a cubic figure can be effectively generated using sequential factoring curves without generating a finite number of middle contours.