Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Kan-Le Shi"'
Publikováno v:
Computers & Graphics. 54:18-27
Constructing B-spline curves from orthogonal views is a common operation in the process of car modelling. Existing reconstructing methods for 3D free-form curves cannot effectively handle the situation where the projection curves in the input views a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc0aaef81d52e168a391868cfc27a0d
https://doi.org/10.1016/j.cag.2015.07.010
https://doi.org/10.1016/j.cag.2015.07.010
Publikováno v:
SCIENTIA SINICA Informationis. 44:1515-1526
Bounding box is extensively used to accelerate algorithms such as geometric intersection, ray tracing and collision detection in computer graphics and computational geometry. Convex bounding polyhedron, which is a generalization of bounding box, can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ef80adb9aea79253e0d11749bffc6f9
https://doi.org/10.1360/n112014-00019
https://doi.org/10.1360/n112014-00019
Publikováno v:
The Visual Computer. 31:1511-1519
In most realtime applications such as 3D games, in order to reduce the complexity of the scene being rendered, objects are often made by simple and large primitives. Thus, the phenomenon of edge highlighting, which would require chamfering structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2314a671bc552f3d50bd34d5795c388
https://doi.org/10.1007/s00371-014-1030-6
https://doi.org/10.1007/s00371-014-1030-6
Publikováno v:
ACM Transactions on Graphics. 33:1-5
We propose a specialized form of the curved-knot B-spline surface of Hayes [1982] that we call regular curved-knot spline surface . Unlike the original formulation where the knots of the first parametric coordinate can evolve arbitrarily with respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9262812042b0cb23f0a4544c8fa2e4e
https://doi.org/10.1145/2629647
https://doi.org/10.1145/2629647
Polynomial spline interpolation of incompatible boundary conditions with a single degenerate surface
Publikováno v:
Computer-Aided Design. 53:28-35
Coons’ construction generates a surface patch that interpolates four groups of specified boundary curves and the corresponding cross-boundary derivative curves. This constructive method is simple and widely used in computer aided design. However, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5e2e77cff038ad6af2cc886665ca9c6
https://doi.org/10.1016/j.cad.2014.03.007
https://doi.org/10.1016/j.cad.2014.03.007
Publikováno v:
Computers & Graphics. 38:183-190
This paper proposes a geometric iteration algorithm for computing point projection and inversion on planar parametric curves based on local biarc approximation. The iteration begins with initial estimation of the projection of the prescribed test poi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d69a9d91982b4ad2845be9be0cfad4
https://doi.org/10.1016/j.cag.2013.10.033
https://doi.org/10.1016/j.cag.2013.10.033
Publikováno v:
Computer-Aided Design. 59:155-157
A G 2 interpolation method to a closed mesh was proposed by Shi et?al. in [1]. This note points out that their method has two theoretical defects, which may lead to the failure of G 2 continuity. We fix these defects and correct several formula mista
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10d562193111fc6780b5b3d21d034d13
https://doi.org/10.1016/j.cad.2014.06.011
https://doi.org/10.1016/j.cad.2014.06.011
Publikováno v:
Science China Information Sciences. 60
创新点 通过拟合离散数据构造 B 样条曲面的方法在 CAD 领域中广泛应用。 本文提出一种使用层次化结构的多张 B 样条曲面拟合网格模型的方法。 对于较难使用一张 B 样条曲面进行拟合的网
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f7eb4edf2b8869f8a39b120a44e0a9
https://doi.org/10.1007/s11432-016-0311-8
https://doi.org/10.1007/s11432-016-0311-8
Publikováno v:
Computer Aided Geometric Design. 28:368-381
This paper proposes a method to construct a B-spline surface that interpolates the specified four groups of boundary derivative curves in the B-spline form. The discontinuity can be bounded by an arbitrary geometric invariant @e-> as the tolerance. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e37dd1b4374979087a9676dde61a869a
https://doi.org/10.1016/j.cagd.2011.06.002
https://doi.org/10.1016/j.cagd.2011.06.002
Publikováno v:
Science China Information Sciences. 54:1383-1394
The orbicular N-sided hole filling problem is usually introduced by filleting an end-point of a part with large radius. The existing methods based on quadrilateral partition or constrained-optimization can rarely generate high-order continuous blendi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb8b921c690f0298a3ad3e2f063b3dbe
https://doi.org/10.1007/s11432-011-4248-1
https://doi.org/10.1007/s11432-011-4248-1