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## [Bon86]  An Algorithm for Silhouette of Curved Surfaces Based on Graphical Relations

 Bonfiglioli:1986:ASC (Article) Author(s) Bonfiglioli L. Title « An Algorithm for Silhouette of Curved Surfaces Based on Graphical Relations » Journal Computer-Aided Design Volume 18 Number 2 Page(s) 95--101 Year 1986

 Abstract The proposed algorithm displays the projected surface S as a quadrilateral grid of straight segments, g; any one of these can be part of the silhouette if, and only if, the two patches connected along g lie on the same side of it. The same segment g is drawn, if it is not hidden by remote patches. The algorithm can be applied to any surface regular or not and self-intersecting and can display the entire silhouette or a part of it. It is simple, it uses only the rectangular coordinates of the projected vertices of the grid and requires few elementary mathematical operations.

 BibTeX code ``````@article{Bonfiglioli:1986:ASC, optpostscript = {}, number = {2}, month = mar, optnote = {}, author = {Luisa Bonfiglioli}, optkey = {}, optannote = {}, localfile = {papers/Bonfiglioli.1986.ASC.pdf}, journal = j-CAD, doi = {http://dx.doi.org/10.1016/0010-4485(86)90157-0}, citeseer = {http://citeseer.nj.nec.com/context/385125/0}, opturl = {}, volume = {18}, optwww = {}, title = {{A}n {A}lgorithm for {S}ilhouette of {C}urved {S}urfaces {B}ased on {G}raphical {R}elations}, abstract = {The proposed algorithm displays the projected surface S as a quadrilateral grid of straight segments, g; any one of these can be part of the silhouette if, and only if, the two patches connected along g lie on the same side of it. The same segment g is drawn, if it is not hidden by remote patches. The algorithm can be applied to any surface regular or not and self-intersecting and can display the entire silhouette or a part of it. It is simple, it uses only the rectangular coordinates of the projected vertices of the grid and requires few elementary mathematical operations.}, pages = {95--101}, year = {1986}, }``````

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