Boundary

In short:normshift function- fast and efficient multi-dimensional and multi type, with only zero bound assumption.imshift- designated to be used with images. Capable to shift several images at once, user definable boundaries assumptions.While sirchift is fast and all types and input dimentions... Platforms: Matlab

A simple partial differential equation (PDE) with boundary conditions is examined:d/dx( x dy/dx ) = xy(0) = y(1) = 0.Integrate the PDE twice to get its solution. Then apply the boundary conditions and get a contradiction. The boundary value problem(BVP)has no solution.Regardless, apply the finite... Platforms: Matlab

These files calculate the natural frequencies and Euler buckling load using Finite element technique. Hermitian beam elements are used as interpolation functions. Assembled mass, geometric stiffness matrix and stiffness matrix are calculated and solved for eigenvalues.First four mode shapes are... Platforms: Matlab

solvePoissonSOR.m is an efficient, lightweight function that solves the Poisson equation using Successive Overrelaxation (SOR) with Chebyshev acceleration to speed-up convergence. Dirichlet boundary conditions are used to provide a unique solution. Platforms: Matlab

2-D Propagation code similar to parabolic wave codes but with complete boundary conditions for irregular surfaces. Induced boundary surface currents are retained. Documentation and examples are provided. Basic code structure can be extended to fully 3-Dimensional environments. Platforms: Matlab

Have you ever worked with 2D boundary shape representations and noticed that the same shape can be represented with reasonable accuracy by a much smaller number of points? Did you ever need to reduce the complexity of a 2D shape while retaining as many salient features as possible? If so then... Platforms: Matlab

This function MESH2TETRA converts a triangulated surface mesh into a tetrahedron volume mesh. Main advantage above existing constrained 3D Delaunay is that it will never add new boundary points, (useful for active appearance models) Disadvantage, some highly non-convex surface-shapes cannot be... Platforms: Matlab

FDTD is Finite Difference Time Domain method,but due to truncated it it will cause the reflectional on its boundary that will cause unnecessary noise to our simulation domain. So minimizing this unwanted signal we use PML(Perfectly Matched Layer)which can absorb this unwanted signal and so there... Platforms: Matlab

This code has been wrote to solve nonlinear two point boundary value problem of order n by multiple shooting method.It needs the function "SENS_SYS" which calculate derivatives (sensitivities) of the solution with respect to parameters. This code is not prefect and i will try to develop it. If... Platforms: Matlab

Objective: Identify opponent pieces which makes your King under Check.Note 1: Your Black King is the only left piece on the Chess Board.Note 2: Unfortunately, the usual 2-colors of Chess Board is erased.Note 3: The Boundary of teams is not Explicitly mentioned.Step: Click on 8x8 board pieces to... Platforms: Matlab

A 2D TM wave containing the xy-plane polarized magnetic field having components Hy and Hx and z-polarized electric field Ez. The fields are updated at every timestep, in a unitless space, where all physical parameters of free space are normalized to 1. The update is done using standard update... Platforms: Matlab

A 2D TM wave containing the xy-plane polarized magnetic field having components Hy and Hx and z-polarized electric field Ez. The fields are updated at every timestep, in a unitless space, where all physical parameters of free space are normalized to 1. The update is done using standard update... Platforms: Matlab

MAT2TILES is basically a wrapper for mat2cell but with a more convenient interface when you are simply trying to decompose an N-dimensional array into equal-sized chunks. It takes the desired chunk-size as an input argument, whereas mat2cell does not. MAT2TILES also has some convenient shortcuts... Platforms: Matlab

This demo works for "perfect mazes." A perfect maze is defined as a maze which has one and only one path from any point in the maze to any other point. This means that the maze has no inaccessible sections, no circular paths, and no open areas. A perfect maze should have only 2 walls (I believe).... Platforms: Matlab

3-Dimensional version of Conway's Game of Life. "Life" is a cellular automaton invented by John Conway that involves live and dead cells in a rectangular, two-dimensional universe. This implementation uses a M x M x M grid; the number initial ramdomly generated cells can be changed using the... Platforms: Matlab

Features of the toolbox:(1) The toolbox includes classic level-set methods such as geodesic active contours (GAC), Chan-Vese model and a hybrid model combining the boundary and regional terms.(2) All the methods are implemented with the semi-implicit solver AOS which can guarantee the stability... Platforms: Matlab

The attached Matlab routines compute the medial axis of 2-D solids whose boundary is made-up of line segments and circular arcs.Caveats:* The attached code is slow.* There are also a few bugs that we are aware of, and expect to address them; use the code with caution!* You will need the Matlab... Platforms: Matlab

ELLIPSESELECT An interactive ellipse selection tool HE = ELLIPSESELECT('init', A, B, X0, Y0, PHI, STYLE)Creates the ellipse and initialzes callbacks. Returns the handle of the ellipse HE. Ellipse parameters: A Length of the semi-major axis B Length of the semi-minor axis X0 Abscissa of the... Platforms: Matlab

A previous submission, confplot (by Michelle Giuliano) plots a single solid error boundary at one level of confidence. I just built on that idea by allowing the shade of the boundary to vary in a graded fashion across an array of confidence levels taken from a t distribution. If the confidence... Platforms: Matlab

The program can get spatial-time response of 2-D Continuous-Discrete systems by taking inverse 2-D Laplace-z transform [1]. The detailed algorithm is provided in Ref. [1].Copyright (C) Yang XIAO, BJTU, July 28, 2007, E-Mail: yxiao@bjtu.edu.cn.Based on recent results for 2-D continuous-discrete... Platforms: Matlab