Title :
Modeling the structure of the sea anemone and the sea star using hierarchical implicit surfaces
Author :
Liang, Xikun ; Nur, Md Asadujjaman ; Wyvill, Brian
Author_Institution :
Dept. of Comput. Sci., Calgary Univ., Alta., Canada
Abstract :
The paper presents a new method for modeling the structure of sea anemones and sea stars. Two specific invertebrates, the sea anemone, Stomphia coccinea and the sea star, Dermasterias imbricata were modeled using hierarchical implicit surfaces based on the BlobTree. The hierarchy provides both local refinement and global deformation. Local refinement allows the introduction of details on the base surface and global deformations change the overall shape of the model while maintaining the integrity of the surface details. Using a new implicit surface phyllotactic method, we obtain a visually pleasing arrangement of the sea anemone´s tentacles. The hierarchical representation of the model provides an easy and efficient way for modeling the many different shape changes of sea anemones
Keywords :
biology computing; computational geometry; data visualisation; digital simulation; solid modelling; zoology; BlobTree; Dermasterias imbricata; Stomphia coccinea; base surface; global deformation; global deformations; hierarchical implicit surfaces; hierarchical representation; implicit surface phyllotactic method; invertebrates; local refinement; marine creatures; sea anemone structure modeling; sea star modeling; shape changes; spiral phyllotaxis; surface details; tentacles; visually pleasing arrangement; Animal structures; Computer science; Deformable models; Mouth; Sea surface; Shape; Spine; Spirals; Spline; Surface waves;
Conference_Titel :
Computer Graphics and Applications, 2001. Proceedings. Ninth Pacific Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7695-1227-5
DOI :
10.1109/PCCGA.2001.962882
