Implicit Surface Driven by an Atlas of Discoids
نویسندگان
چکیده
This paper proposes a new approach for surface modeling. Considering that a surface is described by an atlas of overlapping disk-like patches, this model creates a joining set of implicit surfaces in order to obtain the resulting whole surface. Topological constraints linked to classical models decrease and the geometry of complex surfaces can be easily and naturally described.
منابع مشابه
Real-time rendering of complex surfaces defined by atlas of discoids
This paper expounds a new method of complex surfaces rendering permitting to visualize atlas of discoids in real-time. The atlas of discoids allow to define surfaces very easily without the topological constraints we could get with the classical methods such as polygons meshes ones. Our basic model is completed by many algorithms permitting either to reconstruct implicit surfaces or to calculat...
متن کاملComparison of three different numerical schemes for 2D steady incompressible lid-driven cavity flow
In this study, a numerical solution of 2D steady incompressible lid-driven cavity flow is presented. Three different numerical schemes were employed to make a comparison on the practicality of the methods. An alternating direction implicit scheme for the vorticity-stream function formulation, explicit and implicit schemes for the primitive variable formulation of governing Navier-Stokes equatio...
متن کاملSynthesis of mesoporous silica fibers and discoids endowed with circular pore architecture using disodium trioxosilicate as silica source
We describe the synthesis of mesoporous silica fibers and discoids using disodium trioxosilicate (Na2SiO3 9H2O), a convenient silica source with cetyltrimethylmmonium chloride (CTAC) as a structure directing agent under acidic condition. The molar composition of the synthesis sol is 1Na2SiO3 9H2O:1.5CTAC:28HCl:729H2O. The fibers and discoids, both p6mm, hexagonal, are obtained at room temperatu...
متن کاملIsogeometric Topology Optimization by Using Optimality Criteria and Implicit Function
A new method for structural topology optimization is introduced which employs the Isogeometric Analysis (IA) method. In this approach, an implicit function is constructed over the whole domain by Non-Uniform Rational B-Spline (NURBS) basis functions which are also used for creating the geometry and the surface of solution of the elasticity problem. Inspiration of the level set method zero level...
متن کاملVelocity Inversion with an Iterative Normal Incidence Point (NIP) Wave Tomography with Model-Based Common Diffraction Surface (CDS) Stack
Normal Incidence Point (NIP) wave tomography inversion has been recently developed to generate a velocity model using Common Reflection Surface (CRS) attributes, which is called the kinematic wavefield attribute. In this paper, we propose to use the model based Common Diffraction Surface (CDS) stack method attributes instead of data driven Common Reflection Surface attributes as an input data p...
متن کامل