12 December 2006 05:13:11 PM

TRIANGULATION_BOUNDARY_NODES
  C++ version:
  Identify triangulation nodes that lie on the boundary.

* Read a node dataset of NODE_NUM points in 2 dimensions;

* Read an associated triangulation dataset of 
  triangles using 3 or 6 nodes;

* Determine which nodes are on the boundary;

* Print a list of the node coordinates and indices;

* Write a file of the node coordinates.

  Compiled on Dec 12 2006 at 16:49:19.

  Read the header of "channel.65.nodes.txt".

  Spatial dimension DIM_NUM = 2
  Number of nodes NODE_NUM  = 65

  Read the data in "channel.65.nodes.txt".

  Portion of coordinate data from file:

  Row:       1             2       
  Col

    1              0             0
    2              1             0
    3              2             0
    4              3             0
    5              0             1


 Read the header of "channel.65.triangles6.txt".

  Triangle order TRIANGLE_ORDER = 6
  Number of triangles TRIANGLE_NUM  = 24

  Read the data in "channel.65.triangles6.txt".

  Portion of data read from file:

  Row:      1       2       3       4       5       6  
  Col

    1       5       9      11      22      23      24  
    2       1      10       9      25      26      27  
    3       2      11      10      28      29      30  
    4       9      10      11      26      29      23  
    5       5      11      13      24      31      32  


  Boundary nodes:

     New     Old
   Index   Index         X and Y Coordinates

         0         0               0               0
         1         1               1               0
         2         2               2               0
         3         3               3               0
         4         4               0               1
         5         5               1               1
         6         6               2               1
         7         7               3               1
         8         8               0             0.5
         9         9             0.5               0
        10        12             0.5               1
        11        13             1.5               0
        12        16             1.5               1
        13        17             2.5               0
        14        19               3             0.5
        15        20             2.5               1
        16        21               0            0.75
        17        24            0.25               0
        18        26               0            0.25
        19        29            0.75               0
        20        31            0.25               1
        21        34            0.75               1
        22        39            1.25               0
        23        43            1.75               0
        24        45            1.25               1
        25        48            1.75               1
        26        53            2.25               0
        27        57            2.75               0
        28        59            2.25               1
        29        60               3            0.25
        30        62            2.75               1
        31        64               3            0.75

  Created the boundary node coordinate file "boundary_nodes.txt"

TRIANGULATION_BOUNDARY_NODES:
  Normal end of execution.

12 December 2006 05:13:11 PM