sphere2.edp

FreeFem++可以生成高质量的有限元网格。可以用于流体力学

load "msh3"
load "medit"
border BC(t=0,2*pi){ x=cos(t);y=sin(t);label=1;}
mesh TC= buildmesh(BC(100));
plot(TC,wait=1);
mesh3 Thup=movemesh2D3Dsurf(TC,transfo=[x,y,sqrt(abs(1-square(x)-square(y)))]);
mesh3 Thdown=movemesh2D3Dsurf(TC,transfo=[x,y,-sqrt(abs(1-square(x)-square(y)))]);
verbosity=10;
mesh3 Th= Thup+Thdown;


if(1)
  {
    medit("Thup",Thup);
    medit("Thdown",Thdown);
    medit("Th",Th);
  }