做網格的好程序，PARAmesh is a package of Fortran 90 subroutines designed to provide an application developer with an easy route to extend an existing serial code which uses a logically cartesian structured mesh into a parallel code with adaptive mesh refinement(AMR).
上傳時間： 2014-01-06
上傳用戶：壞壞的華仔
Range imaging offers an inexpensive and accurate means for digitizing the shape of three-dimensional objects. Because most objects self occlude, no single range image suffices to describe the entire object. We present a method for combining a collection of range images into a single polygonal mesh that completely describes an object to the extent that it is visible from the outside.
標簽： three-dimensiona inexpensive digitizing accurate
上傳時間： 2016-11-29
上傳用戶：yxgi5
密西西比大學開發的ZIGBEE源代碼，能組成mesh網絡，開發平臺為IAR。
上傳時間： 2016-12-20
上傳用戶：蟲蟲蟲蟲蟲蟲
韓國Yunjin Lee的博士論文，包含了她讀博期間的主要研究成果，包括mesh Scissoring: Contour-Based Segmentation，mesh Parameterization Using Virtual Boundaries，Geometric Snakes for 3D meshes，Mean Shift for 3D meshes
上傳時間： 2013-12-12
上傳用戶：netwolf
1． 在No.1圖形窗口中繪制 y=sin(x)在[0,2*pi]內的曲線。要求曲線的顏色為綠色，線型為 點劃線，用*標示坐標點，在x軸的附近用 黑體 標注 ‘x軸’字樣，在圖形的上方加上標題 ‘正弦函數’，嚴格控制x,y軸分度相等，并開啟網格。 2． 在No.2圖形窗口中創建四個子窗口，在第一、二子窗口中用不同的方法同時繪制 y=x^2,y=-x^2,y=x^2*sin(x) 在[0,2*pi]內的曲線，并要給出標注 在第三個子窗口中繪制 三維曲線 3． 把No.3圖形窗口分成五個子窗口，分別用plot3 mesh meshc meshz surf 來繪制 z=x*exp(-x^2-y^2) 在 -5=<x,y<=5 內的空間曲面圖形，說明他們的區別，其中要求在用surf繪制的窗口內加入位置為[1，0.5，2]的光源，加入顏色標尺，采用spring色系
上傳時間： 2017-03-30
上傳用戶：84425894
片上網絡的noxim仿真平臺，它能夠用來仿真2維mesh結構的片上網絡
上傳時間： 2014-08-27
上傳用戶：liansi
由于Ogre自帶的模型觀察器無法處理中文名，和查看從天龍八部中導出的mesh和骨骼動畫，所以他寫了一個小工具。過程中重編譯了Ogre的源碼以便其支持中文資源名和處理天龍八部的模型資源。
上傳時間： 2014-01-22
上傳用戶：bjgaofei
無線網絡技術的發展日新月異，各種802.11x標準不斷被更新，新的無線網絡架構和技術也不斷被提出。正當無線局域網（WLAN）的發展方興未艾時，一種新的無線mesh網絡（無線網狀網絡）又出現了。無線mesh網絡的核心指導思想是讓網絡中的每個節點都可以發送和接收信號，傳統的WLAN一直存在的可伸縮性低和健壯性差等諸多問題由此迎刃而解。無線mesh技術的出現，代表著無線網絡技術的又一大跨越，有極為廣闊的應用前景。
上傳時間： 2017-08-03
上傳用戶：yyyyyyyyyy
matlab有限元網格劃分程序 Distmesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below. One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods. For the actual mesh generation, Distmesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes. Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles. To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
標簽： matlab有限元網格劃分程序
上傳時間： 2015-08-12
上傳用戶：凜風拂衣袖
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
標簽： 高精度格式
上傳時間： 2016-01-13
上傳用戶：ccsdcczd
