7.26 floor_coordinates

    STRING filename = NULL;  
    double X0 = 0.0;  
    double Z0 = 0.0;  
    double theta0 = 0.0;  
    long include_vertices = 0;  
    long vertices_only = 0;  
    long magnet_centers = 0;  
    long store_vertices = 0;  

The “vertex point” for a dipole or string of dipoles is defined as the intersection of the straight lines from the ideal entrance and exit trajectories. The s quantity for the vertex is defined as the sum of the actual distance traveled to the start of the dipole or string of dipoles plus the straight-line distance from the entrace to the vertex. Hence, one cannot subtract the s values for two successive vertices and expect to get the distance between the vertices.