MFEM NURBS mesh v1.0

dimension
2

elements
5
1 3 0 3 7 4
1 3 3 2 6 7
1 3 2 1 5 6
1 3 1 0 4 5
1 3 2 8 9 1

boundary
10
1 1 0 3
2 1 3 2
2 1 1 0
2 1 2 8
2 1 9 1
3 1 7 4
3 1 6 7
3 1 5 6
3 1 4 5
4 1 8 9

edges
15
0 0 4
0 3 7
0 1 5
0 2 6
1 0 3
1 4 7
2 3 2
2 7 6
2 1 0
2 5 4
1 2 1
1 6 5
1 8 9
3 2 8
3 1 9

vertices
10

patches

knotvectors
2
2 3 0 0 0 1 1 1
2 4 0 0 0 0.5 1 1 1

dimension
2

controlpoints_cartesian
-5 5 1
-5 3.92523e-16 1
-5 -5 1
-2.47593 2.47593 1
-4.95187 6.06429e-16 0.707107
-2.47593 -2.47593 1
-0.424264 0.424264 1
-0.848528 1.03915e-16 0.707107
-0.424264 -0.424264 1
-0.353553 0.353553 1
-0.707107 8.65956e-17 0.707107
-0.353553 -0.353553 1

knotvectors
2
2 3 0 0 0 1 1 1
2 4 0 0 0 0.5 1 1 1

dimension
2

controlpoints_cartesian
-5 -5 1
-1.17757e-15 -5 1
5 -5 1
-2.47593 -2.47593 1
-9.09644e-16 -4.95187 0.707107
2.47593 -2.47593 1
-0.424264 -0.424264 1
-1.55872e-16 -0.848528 0.707107
0.424264 -0.424264 1
-0.353553 -0.353553 1
-1.29893e-16 -0.707107 0.707107
0.353553 -0.353553 1

knotvectors
2
2 3 0 0 0 1 1 1
2 4 0 0 0 0.5 1 1 1

dimension
2

controlpoints_cartesian
5 -5 1
5 -1.17757e-15 1
5 5 1
2.47593 -2.47593 1
4.95187 -1.21286e-15 0.707107
2.47593 2.47593 1
0.424264 -0.424264 1
0.848528 -2.07829e-16 0.707107
0.424264 0.424264 1
0.353553 -0.353553 1
0.707107 -1.73191e-16 0.707107
0.353553 0.353553 1

knotvectors
2
2 3 0 0 0 1 1 1
2 4 0 0 0 0.5 1 1 1

dimension
2

controlpoints_cartesian
5 5 1
3.92523e-16 5 1
-5 5 1
2.47593 2.47593 1
3.03215e-16 4.95187 0.707107
-2.47593 2.47593 1
0.424264 0.424264 1
5.19574e-17 0.848528 0.707107
-0.424264 0.424264 1
0.353553 0.353553 1
4.32978e-17 0.707107 0.707107
-0.353553 0.353553 1

knotvectors
2
2 3 0 0 0 1 1 1
2 3 0 0 0 1 1 1

dimension
2

controlpoints_cartesian
5 -5 1
10 -5 1
15 -5 1
5 0 1
10 0 1
15 0 1
5 5 1
10 5 1
15 5 1