author = "Kallmann, Marcelo Eug{\^e}nio and Oliveira, Antonio Alberto 
                         Fernandes de",
                title = "Metamorfose de modelos poliedrais utilizando campos vetoriais em 
            booktitle = "Anais...",
                 year = "1996",
               editor = "Velho, Luiz and Albuquerque, Arnaldo de and Lotufo, Roberto A.",
                pages = "135--142",
         organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e 
                         Processamento de Imagens, 9. (SIBGRAPI)",
            publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
              address = "Porto Alegre",
             keywords = "morphing, shape interpolation, boundary representation, 
                         triangulation, tetrahedralization.",
             abstract = "Many aproaches have been proposed to generate a shape 
                         interpolation, or morphing, of polyhedral objects in a facet based 
                         representation. Most of them focus only the correspondence 
                         problem, leaving the interpolation process to just a corresponding 
                         vertices interpolation. In this paper we present a variation for 
                         the 3-dimension space of the technic used in [Oliv96], that uses 
                         TFDs (Fields of Directions defined in a Triangulation). Our 
                         algorithm is based on a field of vectors defined in a constrained 
                         tetrahedralization of the space between the two objects to be 
                         interpolated, after having placed one inside the other. The 
                         algorithm guarantees to generate homeomorphisms and a topology 
                         preserving continuous transformation process between the models. 
                         Examples of such transformations involving simple models are 
                         presented to ilustrate the approach.",
  conference-location = "Caxambu",
      conference-year = "29 out. - 1 nov. 1996",
                 isbn = "85-244-0103-6",
             language = "pt",
         organisation = "SBC - Sociedade Brasileira de Computa{\c{c}}{\~a}o; UFMG - 
                         Universidade Federal de Minas Gerais",
                  ibi = "83LX3pFwXQZW44Lb/cMdts",
                  url = "",
           targetfile = "a11.pdf",
                 type = "Modelagem Geom{\'e}trica",
        urlaccessdate = "2021, Nov. 29"