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Browsing by Subject "octree"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Tree structures for adaptive control space in 3D meshing
    (Wydawnictwa AGH, 2016) Jurczyk, Tomasz; Głut, Barbara
    The article presents a comparison of several octree- and kd-tree-based structures used for the construction of control space in the process of anisotropic mesh generation and adaptation. The adaptive control space utilized by the authors supervises the construction of meshes by providing the required metric information regarding the desired shape and size of elements of the mesh at each point of the modeled domain. Comparative tests of these auxiliary structures were carried out based on different versions of the tree structures with respect to computational and memory complexity as well as the quality of the generated mesh. Analysis of the results shows that kd-trees (not present in the meshing literature in this role) offer good performance and may become a reasonable alternative to octree structures.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Tree-based control space structures for discrete metric sources in 3D meshing
    (Wydawnictwa AGH, 2019) Głut, Barbara; Jurczyk, Tomasz
    This article compares the different variations of the octree and kd-tree structures used to create a control space based on a set of discrete metric point-sources. The control space thus created supervises the generation of the mesh providing efficient access to the required information on the desired shape and size of the mesh elements at each point of the discretized domain. Structures are compared in terms of computational and memory complexity as well as regarding the accuracy of the approximation of the set of discrete metric sources in the created control space structure.