* 2D_to_3D file
*   This data file is necessary when GEOMETRY(12)=4
*  NO_LAYERS *  NO_BASE_MAT_IDS * NO_LAYERS_DATA * NO_Z_DATA * COORD_ID * NO_SURFACES * EX_DIREC *
     32             17                3               3           0           3               0
*  LAYER NO * Z_COORDINATE * DIVISION RATIO *  (NO_Z_DATA+1 data)
     1            0.0            -1.1
    19            0.0075          1.
    23            0.012           1.2 
    33            0.0275          
*  When NO_LAYER_DATA =0
*  Z_COODINATES  (NO_LAYERS+1 data)
*    0.0
*    1.0
*  LAYER NO  * Z_COORDINATE * DIVISION_RATIO * 
*  BASE_MAT_IDS *  (NO_BASE_MAT_IDS data)
                       107  108  110  111  112  113  114  115  116 201  202  203  204  205  206  310  311
*  LAYER_FROM * TO *  MAT_IDS * (NO_LAYERES_DATA data)
* 1:SSA3:RCA4:C
           1    18     8     9   10    11   12   13   14   15   16   0    0   22   24   23   21    1    2
          19    22     8     8   11    11   13   13   14   15   16   22   24   22   24   23   0    1    2 
          23    32    11    11   11    11   13   13   14   15   16   0    0    0    0    0    0    1    2
*  BASE_MAT_ID * MAT_ID * LAYER_POSITION * (NO_SURFACE data )
     108           21        19
     108           23       -23
     107           23       -23        
