Data for Wire Segments

Data for wire segments consist of data for segments and data for nodes between segments.

Wire Segments

The data for the segments follow the data for the triangles.

                              DATA OF THE SEGMENTS

 No.       label     x1 in m     y1 in m     z1 in m      nodes 
          medium     x2 in m     y2 in m     z2 in m    length in m  radius in m
        1      0   0.0000E+00  0.0000E+00  0.0000E+00           1                               
          Free s   0.0000E+00  0.0000E+00  1.4286E-01   1.4286E-01   2.0000E-02
        2      0   0.0000E+00  0.0000E+00  1.4286E-01          -1         2                     
          Free s   0.0000E+00  0.0000E+00  2.8571E-01   1.4286E-01   2.0000E-02
        3      0   0.0000E+00  0.0000E+00  2.8571E-01          -2         3                     
          Free s   0.0000E+00  0.0000E+00  4.2857E-01   1.4286E-01   2.0000E-02
A consecutive number is assigned to each segment.
Note: This number assignment differs from the numbering from the CADFEKO .cfm file generated by CADFEKO.

The label of the segment is given in the second column and below that the number of the medium in which the segment is located. A zero 0 means free space (vacuum). The next columns provide the coordinates of the start and end points. The numbers of the adjacent nodes are given next to the start and the end point columns in the first row for the segments. A positive sign for the node number indicates that the positive current direction is defined away from the segment and vice versa for the negative number. The length of the segment appears in the second row, followed by the radius.

Nodes between Segments

The data of the nodes between the segments is given in a data table in the output file.


                 no. of segment       points of segm.       info of symmetry    
    No.        ISEGP      ISEGM       KNOP     KNOM      yz       xz        xy   status
        1          1         2          2        1       0        0         0   unknown  
        2          2         3          2        1       0        0         0   unknown  
        3          3         4          2        1       0        0         0   unknown
Note: In the above table the spacing between columns was reduced to facilitate rendering the rows as single lines of data.
The first column gives the consecutive numbers of the nodes. Next the numbers ISEGP and ISEGM are for the two connected segments indicating the direction of current flow: a positive current direction is defined from the segment ISEGP to the segment ISEGM. The column KNOP indicates whether the starting point (KNOP=1) of the segment ISEGP connects to the node or whether it is the end point (KNOP=2). Similarly, the column KNOM indicates whether the starting point (KNOM=1) of the segment ISEGM connects to the node or whether it is the end point (KNOM=2). The case ISEGM=0 and KNOM=0 is for half basis function connections over a single wire segment only (typically applicable to wire connections to PEC ground or to UTD faces and so forth). The following four columns contain the data for the symmetry and are the same as for the metallic triangles.