B-spline basis functions
The equation for k-order B-spline with n+1 control points (P0 , P1 , ... , Pn ) is P(t) = ∑i=0,n Ni,k(t) Pi ,   tk-1 <= t <= tn+1 . In a B-spline each control point is associated with a basis function Ni,k which is given by the recurrence relations (see Bspline.java) Ni,k(t) = Ni,k-1(t) (t - ti)/(ti+k-1 - ti) + Ni+1,k-1(t) (ti+k - t)/(ti+k - ti+1) , Ni,1 = {1  if  ti <= t <= ti+1 ,  0  othe
Spline interpolation - Wikipedia
This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (July 2021) (Learn how and when to remove this message) In the mathematical field of numerical analysis, spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial
Ｂスプラインã§æŠ˜ç·šè¿‘ä¼¼ - スズメレンダラー・クマ将棋ã®é–‹ç™ºæ—¥è¨˜
折線（黒線）をＢスプライン曲線（赤線）ã§è¿‘ä¼¼ã™ã‚‹ サンプルプãƒã‚°ãƒ©ãƒ ã‚’ç½®ãã¾ã™ã€‚ http://g0307.hp.infoseek.co.jp/bspline.zip Ｂスプラインã®è©³ã—ã„定義ã¯ä»¥ä¸‹ã‚µã‚¤ãƒˆã®ã‚ˆã†ã«è‰²ã€…ãªã¨ã“ã‚㧠解説ã•ã‚Œã¦ã„ã¾ã™ã€‚ http://markun.cs.shinshu-u.ac.jp/learn/cg/cg5/index2.html ãŸã ã—ã“ã‚Œã¯åˆ¶å¾¡ç‚¹ã‚’与ãˆã¦æç”»ã™ã‚‹ã¨ã„ã†ã‚‚ã®ã§ ä»»æ„ã®ãƒ‡ãƒ¼ã‚¿ã‚’Ｂスプラインã§è¿‘ä¼¼ã™ã‚‹åˆ¶å¾¡ç‚¹ã‚’ 求ã‚ã‚‹ã¨ã„ã†é¡žã®è§£èª¬ã¯ã‚ã¾ã‚Šãªã„ã¨æ€ã„ã¾ã™ã€‚ 今回ã€3次Ｂスプラインã§ãƒŽãƒƒãƒˆãŒç‰é–“éš”ã§è¿‘似対象折線㌠周期的ã§ã‚ã‚‹å ´åˆã«ç°¡å˜ã«ï¼¢ã‚¹ãƒ—ラインã§è¿‘ä¼¼ã™ã‚‹æ–¹æ³•ã‚’è¿°ã¹ã¾ã™ã€‚ 実際使ã†åˆ†ã«ã¯3次・ç‰é–“éš”ã§å分ãªå ´åˆãŒå¤šã„ã¯ãšã§ã™ã€‚ 3次周期Ｂスプラインã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ã€ä¸€ã¤ã®åŸºåº•é–¢æ•°ã‚’ 3ã¤ã®åŒºé–“ã«å ´åˆåˆ†ã‘ã—ã¦å®šç¾©ã•ã‚Œã¾ã™ã€‚ ä»»æ„ã®æ›²ç·šã‚’é‡ã¿ä»˜ã基底関
B-Spline -- from Wolfram MathWorld
is a B-spline. Specific types include the nonperiodic B-spline (first knots equal 0 and last equal to 1; illustrated above) and uniform B-spline (internal knots are equally spaced). A B-spline with no internal knots is a Bézier curve. A curve is times differentiable at a point where duplicate knot values occur. The knot values determine the extent of the control of the control points. -splines are
クリギングã«ã‚ˆã‚‹ç©ºé–“補間プãƒã‚°ãƒ©ãƒ ã€€ï½œã€€ï¼ˆæ ªï¼‰è¨ˆæ¸¬ãƒªã‚µãƒ¼ãƒã‚³ãƒ³ã‚µãƒ«ã‚¿ãƒ³ãƒˆ
地盤沈下é‡ã€åœ°ä¸‹æ°´ä½ãªã©ã¯ã€ãã®çŠ¶æ³ã‚’é¢çš„ã«æŠŠæ¡ã™ã‚‹ã“ã¨ãŒé‡è¦ã¨ãªã‚Šã¾ã™ã€‚ã—ã‹ã—ã€å„種調査や観測ã«ã‚ˆã£ã¦å¾—ã‚‰ã‚Œã‚‹æƒ…å ±ã¯åŸºæœ¬çš„ã«ç‚¹æƒ…å ±ã§ã™ã€‚ 本プãƒã‚°ãƒ©ãƒ ã¯ã€ã€åœ°ç›¤èª¿æŸ»çµæžœã‚„地盤沈下é‡ã€åœ°ä¸‹æ°´ä½è¦³æ¸¬çµæžœãªã©ã®ç‚¹æƒ…å ±ã‹ã‚‰ã€ã‚¯ãƒªã‚®ãƒ³ã‚°ã«ã‚ˆã‚‹ç©ºé–“補間を行ã„ã€é¢æƒ…å ±ï¼ˆç©ºé–“åˆ†å¸ƒï¼‰ã‚’æ±‚ã‚ã‚‹ã‚‚ã®ã§ã™ã€‚çµæžœã¯ã€ã‚³ãƒ³ã‚¿ãƒ¼ã¨ã—ã¦è¡¨ç¤ºã•ã‚Œã€ç”»åƒã‚„CADã¨ã—ã¦å‡ºåŠ›ã™ã‚‹ã“ã¨ã‚‚å¯èƒ½ã§ã™ã€‚ã¾ãŸã€ä»»æ„ã®ç‚¹ã«ã¤ã„ã¦ã®æŽ¨å®šã‚‚å¯èƒ½ã§ã™ã€‚
interp2d — SciPy v1.14.1 Manual
interp2d# class scipy.interpolate.interp2d(x, y, z, kind='linear', copy=True, bounds_error=False, fill_value=None)[source]# Removed in version 1.14.0: interp2d has been removed in SciPy 1.14.0. For legacy code, nearly bug-for-bug compatible replacements are RectBivariateSpline on regular grids, and bisplrep/bisplev for scattered 2D data. In new code, for regular grids use RegularGridInterpolator i
Interpolation (scipy.interpolate) — SciPy v1.14.1 Manual
Interpolation (scipy.interpolate)# Sub-package for objects used in interpolation. As listed below, this sub-package contains spline functions and classes, 1-D and multidimensional (univariate and multivariate) interpolation classes, Lagrange and Taylor polynomial interpolators, and wrappers for FITPACK and DFITPACK functions. Univariate interpolation#
ランã‚ング
ランã‚ング
ランã‚ング
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
Python/Scipy 2D Interpolation (Non-uniform Data)
Lecture Notes | Computational Geometry | Mechanical Engineering | MIT OpenCourseWare
DIERCKX
Hermite補間
Amazon.com: A Practical Guide to Splines: De Boor, Carl: Books
Scattered Data Interpolation and Approximation using Radial Base Functions
[SciPy-User] Problems with 2D interpolation of data on polar grid-MemoryError-for-more-than-4000-(x%2C-y)-pairs---td22871025.html)
Old Nabble - Scipy-User - scipy.interpolate.Rbf() MemoryError for more than 4000 (x, y) pairs ?
Interpolation (scipy.interpolate) — SciPy v0.8 Reference Guide (DRAFT)
http://docs.scipy.org/doc/scipy/reference/generated/scipy.ndimage.morphology.grey_dilation.html
Rbf — SciPy v1.14.1 Manual
griddata — SciPy v1.14.1 Manual
bisplrep — SciPy v1.14.1 Manual
{{#tags}}- {{label}}
{{/tags}}