A new isosurface extraction method on arbitrary grids

نویسندگان

چکیده

The development of interface-capturing methods (such as level-set, phase-field or volume fluid (VOF) methods) for arbitrary 3D grids has further highlighted the need more accurate and efficient interface reconstruction procedures. In this work, we propose a new method extraction isosurfaces on polyhedra that can be used with advantage purpose. isosurface is extracted from fractions by general polygon tracing procedure, which valid convex non-convex geometries, even non-planar faces. proposed method, considered an extension marching cubes technique, produces consistent results ambiguous situations in shape. To show reproducibility presented provide open source library isoap, been developed to implement includes test programs demonstrate successful several polyhedral cells different types. We present obtained not only discrete resulting but also data sets implicit mathematical functions signed distances scanned surfaces. improvement provided will very useful other fields, such CFD visualization medical imaging.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

GPU Accelerated Isosurface Extraction on Tetrahedral Grids

Visualizing large unstructured grids is extremely useful to understand natural and simulated phenomena. However, informative volume visualization is difficult to achieve efficiently due to the huge amount of information to process. In this paper, we present a method to efficiently tessellate on a GPU large unstructured tetrahedral grids made of millions of cells. This method avoids data redunda...

متن کامل

Unconstrained isosurface extraction on arbitrary octrees

This paper presents a novel algorithm for generating a watertight level-set from an octree. We show that the levelset can be efficiently extracted regardless of the topology of the octree or the values assigned to the vertices. The key idea behind our approach is the definition of a set of binary edge-trees derived from the octree’s topology. We show that the edge-trees can be used define the p...

متن کامل

Isosurface Extraction from Hybrid Unstructured Grids Containing Pentahedral Elements

Grid-based computational simulations often use hybrid unstructured grids consisting of various types of elements. Most commonly used elements are tetrahedral, pentahedral (namely, square pyramids and right triangular prisms) and hexahedral elements. Extracting isosurfaces of scalar fields defined on such hybrid unstructured grids is often done using indirect methods, such as, (a) subdividing al...

متن کامل

A Second-Order Godunov Method on Arbitrary Grids

generalized algorithm. The previous high order Godunov methods on which it is strongly based can be found in the A second-order Godunov method is proposed for the solution of general systems of conservation laws on arbitrary grids. Some original bibliography ([2, 4, 14, 15]) and in the book of applications are discussed: moving and deforming grids, local grid LeVecque [8]. refinement, Lagrangia...

متن کامل

Isosurface Extraction

new advances in isosurface extraction. features in the span space and improvements of view dependent extraction (WISE-¿SAGE)

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Computational Physics

سال: 2021

ISSN: ['1090-2716', '0021-9991']

DOI: https://doi.org/10.1016/j.jcp.2021.110579