在MATLAB中加载stl文件并转换为3D数组

From FileExchange, with small modifications:function [flag, u, v, t] = mollerTrumbore (ray,tri)% Ray/triangle intersection using the algorithm proposed by Moller and Trumbore (1997).%% IMPORTANT NOTE: Assumes infinite legth rays.% Input:% ray(1,:) : origin.% d : direction.% tri(1,:), tri(2,:), tri(3,:): vertices of the triangle.% Output:% flag: (0) Reject, (1) Intersect.% u,v: barycentric coordinates.% t: distance from the ray origin.% Author:% Jesus Mena d=ray(2,:)-ray(1,:); epsilon = 0.00001; e1 = tri(2,:)-tri(1,:); e2 = tri(3,:)-tri(1,:); q = cross(d,e2); a = dot(e1,q); % determinant of the matrix M if (a>-epsilon && a<epsilon) % the vector is parallel to the plane (the intersection is at infinity) [flag, u, v, t] = deal(0,0,0,0); return; end f = 1/a; s = ray(1,:)-tri(1,:); u = f*dot(s,q); if (u<0.0) % the intersection is outside of the triangle [flag, u, v, t] = deal(0,0,0,0); return; end r = cross(s,e1); v = f*dot(d,r); if (v<0.0 || u+v>1.0) % the intersection is outside of the triangle [flag, u, v, t] = deal(0,0,0,0); return; end if nargout>3 t = f*dot(e2,r); % verified! end flag = 1; returnend只需生成您的观点:yourboundaries=% get the range of your data from the STL file.[x,y,z]=meshgrid(yourboundaries);P=[x(:) y(:) z(:)];in=inmesh(fv,P);img=reshape(in,yourboundariesSize); 这篇关于在MATLAB中加载stl文件并转换为3D数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！