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updated 2 months ago

Restricted Cubic Spline by Leonidas Bantis

Fits the so called restricted cubic spline via least squares and obtains 95% bootstrap based CIs. (spline, restricted cubic spli..., least squares)

[bhat f sse knots CI]=rcspline(x,y,knots,bootsams,atwhich,p...

[bhat ff sse X]=rcs(x,y,knots,plots)

example.m

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updated 4 months ago

distance2curve by John D'Errico

Find the closest point on a (n-dimensional) curve to any given point or set of points (arclength, interpolant, distance)

distance2curve(curvexy,mapxy,interpmethod)

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updated 7 months ago

B-splines by Levente Hunyadi

Draw, manipulate and reconstruct B-splines. (bspline, drag and drop, ginput)

bspline_approx(k,t,x,M)

bspline_basis(j,n,t,x)

bspline_basismatrix(n,t,x)

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updated 9 months ago

Waveform Generator GUI by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (waveform, gui, signal processing)

Waveform Generator GUI

bdf(ha,hfl,uf)

hfl=create_marker(ha,x,y,r,c,uf,no)

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updated 10 months ago

Construction of cubic Bezier Patch and Surface by Dr. Murtaza Khan

Construction of cubic Bezier Patch and Surface (cubic bezier, patch, surface)

Q=bezierpatchinterp(P,varargin)

plotbezierpatch3D(P,Q)

plotbeziersurface3D(S,Q)

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updated 10 months ago

interparc by John D'Errico

Distance based interpolation along a general curve in space (interpolation, spline, linear)

interparc(t,px,py,varargin)

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updated 12 months ago

Free-knot spline approximation by Bruno Luong

Least squares approximation of 1D data using free-knots spline (bspline, free knots, fitting)

BBspline(varargin)

BSFK(x, y, k, nknots, fixknots, options)

BSFK_install

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updated 1 year ago

Generate Random Numbers from a 2D Discrete Distribution by Tristan Ursell

Random numbers from any 2D discrete probability distribution, at any resolution. (discrete, distribution, generate)

[x0,y0]=pinky(Xin,Yin,dist_in,varargin)

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updated 1 year ago

Interactive curve class by Maxim Vedenyov

change curve by markers drag-and-drop (interactive, curve, interpolation)

example4(varargin)

ic=example3

interactive_curve

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updated 1 year ago

SLM - Shape Language Modeling by John D'Errico

Least squares spline modeling using shape primitives (hermite, slm, cubic)

slm_tutorial

hermite2slm(harray)

plotslm(slm)

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updated 1 year ago

3D Free Form Image Registration Toolbox (GUI) by Daniel Markel

A toolbox for performing image registrations on 4D RTOG files or any other volumetric image. (image registration, 3d, image)

Crop_image(varargin)

Dcoord(varargin)

Deform(varargin)

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updated 1 year ago

arclength by John D'Errico

Compute the arclength of a general curve in any number of dimensions (arclength, spline, curve)

arclength(px,py,varargin)

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updated 1 year ago

SPLINEFIT by Jonas Lundgren

Fit a spline to noisy data. (approximation, splinefit, cubic spline)

SPLINEFIT EXAMPLES

ppdiff(pp,j)

ppint(pp,a,b)

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updated almost 2 years ago

Fast B-spline class by Patrick Mineault

Fit, evaluate, differentiate non-uniform B-splines of any order - fast (bspline, spline, smoothing spline)

CompileMexFiles()

fastBSpline

TryBSpline.m

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updated almost 2 years ago

spline_deriv by Samuel Lazerson

Calculates the jth derivative of spline as produced by mkpp and returns a spline. (mathematics, spline, curve fitting)

spline_deriv( pp,jderiv )

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updated almost 2 years ago

equalspline by Jeff Tuhtan

Equally spaced points along a polyline. Can use spline, linear, and other interpolation methods. (polyline, spline, even spacing)

equalspline(orientation,curveRes,splineDist,method)

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updated 2 years ago

Regular Control Point Interpolation Matrix with Boundary Conditions by Matt J

Creates Toeplitz-like matrices representing interpolation operations with edge conditions. (interpolation, spline, bspline)

Example1D

Example2D

T=interpMatrix(kernel, origin, numCtrlPoints, CtrlPointSep,...

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updated almost 3 years ago

Local maxima and minima of a pp spline by Matthew Arthington

Determine the locations of local maxima and minima in a pp spline generated by pp = spline(x,Y); (spline, maxima, minima)

splineMaximaMinima(ppSpline)

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updated 3 years ago

Cardinal Spline (Catmull-Rom) Spline by Dr. Murtaza Khan

Evaluates and plot 2D Cardinal Spline (Catmull-Rom) Spline. (cardinal spline, catmull, approximation)

[xt,yt] =EvaluateCardinal2D(P0,P1,P2,P3,T,u)

[xvec,yvec]=EvaluateCardinal2DAtNplusOneValues(P0,P1,P2,P3,...

TestEvaluateCardinal2D.m

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updated 3 years ago

Spline based function approximation for HDL synthesis by Sean Little

This is a suite of simple utilities that allow for efficient approximation of complex functions in a (hdl, hdl coder, spline)

[x,pp]=create_lut3(fcn, rng, tol)

example

nearestpoint(x,y,m) ;

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updated 3 years ago

Random numbers from a user defined piecewise polynomial distribution by Luigi Sanguigno

RANDPDFS returns pseudorandom values drawn from an arbitrary distribution defined by the pp-form. (mathematics, statistics, spline)

[r,varargout]=randpdfs(ppdf,varargin)

randpdfsdoc.m

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updated 3 years ago

Triangular Mesh Refinement by Dirk-Jan Kroon

This function will refine a triangular mesh with 4-split spline interpolation (refinement, triangular, interpolation)

Fnew=makenewfacelist(F,HT_index, HT_values)

Ne=vertex_neighbours(FV)

Ne=vertex_neighbours_double(Fa,Fb,Fc,Vx,Vy,Vz)

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updated 3 years ago

Radial Basis Function Network by Travis Wiens

Simulates and trains Gaussian and polyharmonic spline radial basis function networks. (radial basis function, radial basis function..., rbf)

Phi_int=rbf_integral(Xc,X1,X2,k_i,basisfunction)

[W phi]=train_rbf(X,Y,Xc,k_i,basisfunction)

[Y_int Phi_int]=rbfn_integral(Xc,X1,X2,W,k_i,basisfunction)

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updated 3 years ago

clickfit_OH for curve fitting by eye/hand by Oscar Hartogensis

click a data-series on top of a (noisy) scatterplot and get a spline or polynomial regression (curve fitting, ginput, regression)

clickfit_OH(varargin)

ginput_OH(arg1,strpointertype,xx,yy)

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updated 3 years ago

Interactive Spline Region of Interest by Azim

An interactive, closed spline (gui, interactive, roi)

splineroi

exampleScript.m

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updated 3 years ago

Filter Coefficients to Popular Wavelets by Pascal Getreuer

Reference of wavelet filter coefficients and lifting scheme implementations. (cdf 97, daubechies, wavelets)

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updated almost 4 years ago

Spline derivative by Bruno Luong

Compute spline function and its derivative (derivative, interpolation, spline)

BLspline_install

DP=polyderiv(P, ivar)

P=scalefun(P, S)

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updated almost 4 years ago

nanderivative.m v2.1 (Jul 2009) by Carlos Adrian Vargas Aguilera

N-order derivative of vector data by interpolating nearby points, ignoring NaNs. (derivative, nan, diff)

nanderivative(Y,X,N,K,MET)

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updated 4 years ago

igesout by Daniel Claxton

Convert surfaces, curves and lines to IGES file (cad, iges, convert)

igesout(obj,filename,varargin)

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updated 5 years ago

N-Dimensional BSplines by Nathan Cahill

Construct coefficients of interpolating or smoothing BSplines from N-dimensional array, analytically (bsplines, ndimensional, spline)

bsarray(a,varargin)

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updated 5 years ago

AUTOCAD By Matlab by Abdelrahman mohammed

from now you can plot circle ,rectangular,spline,arc,line,...like AUTOCAD (autocad, line, spline)

MATHCAD(varargin)

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updated 5 years ago

Contour edition by Vincent Garcia

Edit an object contour using mouse interactions (contour edition, point, square)

ctr_editContour(img,o_ctrType,o_ctr)

test()

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updated 6 years ago

gspline by Daniel Claxton

GSPLINE - Interactively draw interpolating spline similar to gline (gline, annotation, spline)

gspline(fig)

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updated 6 years ago

Select ROI in image using spline by Simone Cazzaniga

A usefull program to select smooth region in image (image analysis, roi, spline)

mask=roispline(I,kind,tension)

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updated almost 7 years ago

NaturalOpenCubicSplineCurves by Nguyen Quoc Duan

NOCSC with uniform and proportional knots (spline, cad, cubic)

NaturalOpenCubicSplineCurves.m

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updated 7 years ago

Akima Interpolation by N. Shamsundar

Interpolate smooth curve through given points on a plane. (akima, spline, fit)

yi=akimai(x,y,xi)

AkimaTst.m

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updated 9 years ago

cubicSpline by Andrew Hastings

Accurate method to produce a curve through data points. (integration, curved lines, spline)

cubicSpline(coeff,smoothness);

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updated 11 years ago

Simple Warping Routine by Alex /Gloria Ossadtchi /Halfacre

Rerforms simple 2-D warping based on a set of reference points (geometric transformat..., warping, image registration)

warpitfun(pink,get,Zp,Zg)

warpingfunsup.m

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