An interactive computer program is developed to represent a 3-dimensional structure from 2-dimensional orthographic drawings. The algorithm utilized can treat polyhedral shapes. Input data to the program from the 2-D drawings, which consist of point informations, can be obtained by a digitizer and they can be prepared separately for each views with a minimal information for connectivity.
Elimination of the so called ghost figures has been considered with a priority base and needs additional user information for specific cases.
Since the geometry represented is stored in a neutral file, it can be used for other displays such as perspective views with hidden line removal and applications for FEM mesh generation.
Several test problems are taken for illustration, showing effectiveness, especially for cases of trihedral shapes.
To be more practical, however, it is necessary to extend the program to cover more general shapes with curved geometry.