Freeform Surfaces Adaptation through Developable Surfaces Using Apparent Contours

摘要

Free-form surfaces construction has been limited to the possibilities of graphical and constructive control. In a few years we have seen an important development of control of the form through digital graphic technology, software and hardware that allowed truly spectacular constructions. A significant researching way not only in architecture, but also in engineering even in sculpture, has been the adaptation of free forms through developable surfaces using different systems, many based on differential geometry. Reinterpreting some topics of projective geometry that allows the use of certain CAD software, jumping from the physical to the digital drawing system, has been developed a method allows the adaptation of free forms through developable surfaces using apparent contours that we can draw over these free form surfaces. Trough using them we can trace two types of developable surfaces as cones and cylinders that are touching the surface tangentially to this contours.