Demo 1. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 1. Demo 2. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 2. Demo 3. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 3. Demo 4. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 5. Demo 5. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 7. Demo 6. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 8. Demo 7. A symmetric pair of 3D curves produced from the pair of 2D curves in Figure 12. Demo 8. Two different 3D symmetric curves produced from the same 2D curve in Figure 13. |