clc clear all %参考四面体 %顶点1-[1,0,0] 2-[0,1,0] 3-[0,0,1] 4-[0,0,1] % 算例配置(改波长/材料/边界请编辑 case_config_doublePBC.m) [phy, cfg] = case_config_doublePBC(); %读取网格 load(cfg.meshMatFile); mesh.incIndex=findTri(phy.inc,mesh); mesh.outIndex=findTri(phy.out,mesh); mesh.PBCIndex=findPBCIndex(phy.src,phy.dst,cfg.pbcWaveVec,mesh); mesh.PBCphi=cfg.pbcPhi; mesh.PBCIndex2=findPBCIndex(phy.src2,phy.dst2,cfg.pbcWaveVec2,mesh); mesh.PBCphi2=cfg.pbcPhi2; %矩阵组装 solver.Ai=[];solver.Aj=[];solver.Av=[]; solver.b=zeros(mesh.NbrEdge,1); solver=assembly_equ(phy,mesh,solver); %出射处理 solver=assembly_out(phy,mesh,solver); %入射处理 solver=assembly_inc(phy,mesh,solver); solver.A=sparse(solver.Ai,solver.Aj,solver.Av); %Bloch boundary solver=assembly_pbc_double(mesh,solver); %求解 solver.A=solver.P'*solver.A*solver.P; solver.b=solver.P'*solver.b; solver.x=solver.A\solver.b; solver.x=solver.P*solver.x; %计算电场 triIndex=findTri(3,mesh); [x,y,normE]=get_ele2(triIndex,mesh,solver); patch(x,y,normE,'EdgeAlpha',0) colormap jet; colorbar min(min(normE)) max(max(normE))