Version 5.0 The LEDA User Manual

integer p.W( ) returns the fourth homogeneous coordinate of p.
double p.XD( ) returns a floating point approximation of p.X( ).
double p.YD( ) returns a floating point approximation of p.Y ( ).
double p.ZD( ) returns a floating point approximation of p.Z( ).
double p.WD( ) returns a floating point approximation of p.W ( ).
rational p.xcoord( ) returns the x-coordinate of p.
rational p.ycoord( ) returns the y-coordinate of p.
rational p.zcoord( ) returns the z-coordinate of p.
rational p[int i] returns the ith cartesian coordinate of p
Precondition: 0 ≤ i ≤ 2.
double p.xcoordD( ) returns a floating point approximation of p.xcoord( ).
double p.ycoordD( ) returns a floating point approximation of p.ycoord( ).
double p.zcoordD( ) returns a floating point approximation of p.zcoord( ).
integer p.hcoord(int i) returns the ith homogeneous coordinate of p.
Precondition: 0 ≤ i ≤ 3.
rat point p.project xy( ) returns p projected into the xy-plane.
rat point p.project yz( ) returns p projected into the yz-plane.
rat point p.project xz( ) returns p projected into the xz-plane.
d3 rat point p.reflect(const d3 rat point& p, const d3 rat point& q,
const d3 rat point& r)
returns p reflected across the plane passing through p,
q and r.
Precondition: p, q and r are not collinear.
d3 rat point p.reflect(const d3 rat point& q)
returns p reflected across point q.
d3 rat point
d3 rat point
p.translate(const rational& dx, const rational& dy, const rational& dz)
returns p translated by vector (dx, dy, dz).
p.translate(integer dx, integer dy, integer dz, integer dw)
returns p translated by vector (dx/dw, dy/dw, dz/dw).