### Variations

The first example shown below is of the Edit window when the user switches TOG4 to BND. The first x, y, z indicates the first point on the line. The second x, y, z indicates the ending point on the same line. The last value represents the theoretical or actual length of the line.

The unbounded line format is displayed in the second example.

feature_name=FEAT/LINE,TOG1,BND
THEO/x_cord,y_cord,z_cord,x_cord,y_cord,z_cord,length
ACTL/x_cord,y_cord,z_cord,x_cord,y_cord,z_cord,length
CONSTR/TOG2,TOG3,...,length

feature_name=FEAT/LINE,TOG1,UNBND
THEO/x_cord,y_cord,z_cord,i_vec,j_vec,k_vec
ACTL/x_cord,y_cord,z_cord,i_vec,j_vec,k_vec
CONSTR/TOG2,TOG3,...