square_raf_g.mesh

FreeFem++可以生成高质量的有限元网格。可以用于流体力学

MeshVersionFormatted 0
Dimension 2
Vertices 5
 -1 -1 1
 1 -1 2
 1 1 3
 -1 1 4
0 0 0
Edges 4
1 2 1
2 3 1
3 4 2
4 1 2
hVertices
0.666 0.666 0.666 0.666 0.01
#  if you do not say that the vertex number 5 is required
#  the mesher lost this information so no refement 
#  around the vertex (0.,0.) is done

RequiredVertices 1
5