33,449 results

extracts 2d alpha shapes from a set of x/y data points

ASHAPE is a simple wrapper for ASLIB, which implements several (optimized) subroutines to extract and display 2d alpha shapes and alpha patches from a set of x/y data pointsASLIB returns a structure

Multi-DOF robot manipulator designer and simulator

Functions to compute many proximity graphs and their relatives.

Nearest Center of Gravity; - Delaunay; - Gabriel; - Infinite Strip Band; - Relative Neighborhood; - Sphere of Influence; - Alpha Shape; - Epsilon-Ball; - Lune-based Beta Skeleton;- Circle-based Beta

Highlights automatically importing assay text data, perform basic statistics & visualization

Compute the alpha hulls (exterior and interior) of a set of points.

See also http://www.dylan-muir.com/articles/alpha_hulls/Usage: [triHull, vbOutside, vbInside] = AlphaHull(mfPoints, fAlphaRadius , triDelaunay)This function computes the alpha shape / alpha hulls of

Convert alphaShape object to binary image

im_out = alphaShape2im(shp,center_coord,im_size,scaling) creates a binary image with size im_size that represents a given alphaShape "shp". "alphaShape2im" maps the center voxel(s) to the reference

The code works to find the coordinates of final alpha shape

Extracts 2d boundary coordinates from a set of x/y data points based on ashape package in http://www.mathworks.cn/matlabcentral/fileexchange/6760-ashape-a-pedestrian-alpha-shape-extractor.

Tests M random samples of N random vars to determine if they are from Inverse Gaussian distbtn.

This program is based on the method published by O'Reilly & Rueda (see program for more details for reference). Confidence level (i.e. alpha value) is chosen,and if the number of AD test stats

2D/3D image segmentation using level-set based active contour/surface with AOS scheme

Live Script that makes a variety of helical-spring alpha shapes, geometry files, and STL files.

This Live script makes a variety of solid helical coils by sweeping a rectangular or elliptical beam cross section through space. The point cloud is wrapped with an alpha shape resulting in faces

a fully interactive canvas that provides tools to produce professional-looking schematic diagrams.

Betacp of 2D or 3D point set.V = BETAAVOL(x,R) gives the area or volume V of the basic alpha shape

% BetaVOL(x,R,1) plots the Beta shape.%% % 2D Example - C shape% t = linspace(0.6,5.7,500)';% x = 2*[cos(t),sin(t)] + rand(500,2);% subplot(221), Betavol(x,inf,1);% subplot(222

Efficient Random Variates Generator (from over 50 distributions).

RANDRAWEFFICIENT RANDOM VARIATES GENERATOR (from over 50 distributions):Alpha, Anglit, Antilognormal,Arcsin,Bernoulli, Bessel

Live Script illustrating creation of a 3D solid extruded along a parametric path and saved as an STL file.

Building a solid extrusion model with a closed triangulation from a point cloud fails with Delaney wrapping when the solid is not convex and fails with alpha-shape wrapping when parts of the solid

This is a MATLAB code that generates an animated GIF of a heart shape.

represent the heart shape using parametric equations. Next, the code sets up the animation by defining the number of frames (nFrames) and creating a sequence of alpha values that will be used to change the

A collection of tools to supplement bwpropfilt, bwareaopen, and the like.

intersections with a user-supplied binary mask. Handles N-dimensional images.3. BWLALPHACLOSE: similar to bwconvhull, this will use an alpha shape to seal or reduce concavities in objects (2D and 3D images

This function returns information about a triangulation, which may be useful when setting up a partial differential equation problem.

Function analyzeTriangulation() was written to diagnose problems that can occur when using built-in functions alphaShape() and alphaTriangulation(). analyzeTriangulation() works on 2D and 3D

Aggregate packing generator used for the simulation of aggregate in composites

y=[ymin ymax] is boundaries of the extrusion of the polygonClasses_diameters: Particles classes diameters vector (descendingly)Alpha: Fuller's curve exponent [0.45-0.5].m: Particles shape distribution

This potential flow simulator simulates the flow past bodies of arbitrary shape including airfoils.

This potential flow simulator simulates the flow past bodies of arbitrary shape including airfoils. With this simulator, we can do the following tasks, * Compute and plot the Velocity Vector Plot of

Least squares spline modeling using shape primitives

, with a caveat. Splines offer tremendous flexibility to build a curve in any shape or form. They can nicely fit almost any set of data you will throw at them. This same flexibility is their downfall at

fits different theoretical variograms to an experimental variogram

with different exponents. Supply the exponent alpha (<2) as an additional pn,pv-pair 'stablealpha',alpha (default = 1.5).'matern' -- Matern model. Requires an additional pn,pv pair. 'nu',nu (shape

Aggregate packing generator with fibers used for the simulation of aggregate and fibers in composites

Plot_Sieve(Classes,x,y,z,Classes_diameters,Alpha,Particle_ratio)Plots generated sieve curve.3-function Ellipsoids=Particles_Distribution(Classes,x,y,z,er)Generates aggregate with ellipsoids shapes4-function Plot_Ellipsoids(Ellipsoids,x,y,z)Plots ellipsoids5-function

barycentric_coordinates will give the coordinates alpha, beta ,gama of the matrix face_point.

face_point is the point [x,y]' from the mean shape of the face. dt is 3 by 2 matrix that will have the coordinates corresponding 2 the vertices of a triangle. for eg for a triangle with vertices

Aggregate packing generator with fibers used for the simulation of aggregate and fibers in composites

Classes=Particles_Generation(x,y,z,Classes_diameters,Alpha,m,Particle_ratio)Generates aggregates according to Fuller's curve.2-function Plot_Sieve(Classes,x,y,z,Classes_diameters,Alpha,Particle_ratio)Plots generated sieve curve.3-function

Add alpha color for Confidence Interval Plot of Raymond Reynolds (2006)

I add the fifth parameter, alpha, to let user choice of transparency level.[14/06/2017]: the function should return the handle to give control for fill shape.

Generates Abaqus mesh for 2D mesoscale geometries

of the extrusion of the polygonClasses_diameters: Particles classes diameters vector (descendingly)Alpha: Fuller's curve exponent [0.45-0.5].m: Particles shape distribution factor. m=1 for spheres and

MATLAB class to fill models with points, build watertight hulls, and derive volume models of a complex surface model for anatomical analysis

and anatomical model with points (grid points) 4. Shrink-Wrap Surfaces: Alpha shape hulls with UI or auto iteration to closed meshes 5. Reference Intersection Support: Identification of reference model

A unified MATLAB project combining multiple anatomy‑analysis classes into a comprehensive anatomy modeling workflow.

, transformation, mesh repair, hole filling, shrink wrap, alpha shape, intersection, sphere approximation, clumped spheres, volume analysis, rigid body alignment, Kabsch algorithm, distance mapping, boundary

Planar Cosserat rod

rod2d handle object is used for computation of planar Cosserat rod, i.e. extensible and shearable rod, which is based on the analytical solution given in [1]. The initial shape of the rod can be a

Polygonal (radar) plot with mean and standard deviation (or error) values

Function polygonplot plots a kind of radial plot whose shape is a N-polygon, depending on the size of the data. It have also provide users the functionality of plotting a shaded error area if the

Explores published asteroid shape models and computes asteroid inertial moments and gravitational fields assuming constant density.

This script explores asteroid shape models derived from public data sources. It illustrates methods to download discrete shape models from the web, explores the surface triangulation methods

Resolves weighted absorption coefficient (aw) according to EN ISO 16654

Determine alpha w (aw) and also the shape indicator from 1/1 octave band alpha values (a).

Install the MinGW-w64 C/C++/Fortran compiler for Windows

Various tools for working with large point clouds

Generates Abaqus mesh for 3D mesoscale geometries

Plot_Sieve(Classes,x,y,z,Classes_diameters,Alpha,Particle_ratio)Plots generated sieve curve.3-function Ellipsoids=Particles_Distribution(Classes,x,y,z,er)Generates aggregate with ellipsoids shapes4-function Plot_Ellipsoids(Ellipsoids,x,y,z)Plots

Aggregate packing generator with fibers used for the simulation of aggregate and fibers in composites. It also creates three STL files.

Classes=Particles_Generation(x,y,z,Classes_diameters,Alpha,m,Particle_ratio)Generates aggregates according to Fuller's curve.2-function Plot_Sieve(Classes,x,y,z,Classes_diameters,Alpha,Particle_ratio)Plots generated sieve curve.3-function

Beta-binomial probability distribution function.

distribution is used to model the number of successes in n binomial trials when the probability of success p is a Beta(a,b) random variable. The extreme flexibility of the shape of the Beta distribution means

Alphanumeric row sort of a cell/string/categorical/table array, with customizable number format.

Alphanumeric sort of a cell/string/categorical array, with customizable number format.

Alphanumeric sort of filenames or filepaths, with customizable number format.

Determines the percolation of fibers in a box (cuboid) containing aggregate

Classes_diameters: Particles classes diameters vector (descendingly)Alpha: Fuller's curve exponent [0.45-0.5].m: Particles shape distribution factor. m=1 for spheres and m>>1 for elongated ellipsoid shapes

inspired by the behavior or characteristics of the dwarf sperm whale.

Levy flights:Xit+1=Xit+α⋅Levy(β)X_i^{t+1} = X_i^t + \alpha \cdot \text{Levy}(\beta)Xit+1​=Xit​+α⋅Levy(β)Prey Detection (Exploitation):Refine search around promising solutions using small adaptive

Creates an N-dimensional sparse array object, for arbitrary N.

Firefly Algorithm (FA) Image Segmentation Using Clustering

`: Maximum number of iterations for the Firefly Algorithm.- `nPop`: Number of fireflies in the population.- `gamma`: Light absorption coefficient.- `beta0`: Attraction coefficient base value.- `alpha

MATLAB Image Manipulation Toolbox

generationImage viewer with support for alpha and 4D image browsingImage blending, compositing and masking toolsColor adjustment in various color modelsContrast or chroma enhancement via levels/curves tool (RGB or

Implementation of Fuzzy Control of Multilayer Backpropagation Neural Network

heuristic solution and depending on the shape of the error surface.The central idea behind the fuzzy control of backpropagation is the implementation of heuristics in the form of fuzzy if then rules. Which is

This is the one you have been waiting for, a clean interface using assumed shape Fortran pointers.

that work with assumed shape Fortran Pointers. Functions are available to, in one line:-Get shaped pointers into the data area of an mxArray-Get shaped pointers that point to a copy of the data area of

with this you can recognize many shape;but only symetrical shape

with this you can recognize many shape;but only symetrical shape,for example you can improve this for recognize star,polygon if you want

Fits n peaks with symmetric/asymmetric lorentzian/gaussian line shapes. Output yields fit coefficients, erros and every single contribution.

more options. Matlab Curve Fitting and Symbolic Math toolboxes are required. The main function 'multiPeakFit.m' executes the fit to a given dataset. Included line shape types are:asymmetric lorentzian

Splits an array of any dimension into cell array of equal sized chunks.

Aggregate 2D packing generator used for the simulation of aggregate in composites

section.Classes_diameters: Particles classes diameters vector (descendingly)Alpha: Fuller's curve exponent [0.45-0.5].m: Particles shape distribution factor. m=1 for circles and m>>1 for elongated ellipses

Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality.

Maximum power point tracking (MPPT) using different algorithms

Tools to compile a real-time application that runs on a Speedgoat target computer

A symbolic toolbox for MATLAB based on Mathematica.

Shape recognition using 2-D correlation. Input images are read from webcam.

Application of image processing that captures an image from an integrated or external camera and proceeds to recognize shapes as rectangle, circle, star and triangle. The recognition is based on the

Find vertex or (in)equality forms of convex polyhedra in R^n (for n not super large). Also, compute their intersections and unions.

column vectors, respectively. The (in)equality representation expresses the polyhedron as the intersection of two regions. One region is a solid N-dimensional shape, described by the inequalities, while

Verify robustness properties of PyTorch and ONNX Deep Neural Networks using the α,β-CROWN (alpha-beta-CROWN) Verifier

The Deep Learning Toolbox™ Interface for alpha-beta-CROWN Verifier enables verification of neural networks in ONNX and PyTorch formats, including computation of network bounds, robustness of

Produce a 3D quiver of arrows with many visualization options

Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition

This is an example of the basic Active Shape Model (ASM) and also the Active Appearance Model (AAM) as introduced by Cootes and Taylor, 2D and 3D with multi-resolution approach, color image support