##### Ninja Library - Collision Function

# njDistanceP2L

Returns the distance between a point and a line

### FORMAT

`

  Float njDistanceP2L( *p, *l, *cp )
  NJS_POINT3 *p
  NJS_LINE *l
  NJS_POINT3 *cp

`

### PARAMETER

  `*p` | Point data
  `*l` | Line data
  `*cp` | Coordinates of the base of the perpendicular from the point p to the line l

### RETURN

  Distance between a point and a line

### DESCRIPTION

  Returns the distance between a point and a line. When parameter cp is not NULL, the coordinates of the base of the perpendicular from the point p to the line l are returned in cp.

### EXAMPLE

      NJS_POINT3 p, cp;
      NJS_LINE l;
      p.x = 6.f;
      p.y = 6.f;
      p.z = 4.f;
      l.px = 4.f;
      l.py = 3.f;
      l.pz = 2.f;
      l.vx = 3.f;
      l.vy = 2.f;
      l.vz = 1.f;
      njDistanceP2L(&p, &l, &cp);
      % Result %
      Return : 1.732051
      cp (7, 5, 3)

njDistanceP2L

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