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#include <line.h>
Public Member Functions  
GfLine ()  
The default constructor leaves line parameters undefined. More...  
GfLine (const GfVec3d &p0, const GfVec3d &dir)  
Construct a line from a point and a direction. More...  
double  Set (const GfVec3d &p0, const GfVec3d &dir) 
GfVec3d  GetPoint (double t) const 
const GfVec3d &  GetDirection () const 
Return the normalized direction of the line. More...  
GF_API GfVec3d  FindClosestPoint (const GfVec3d &point, double *t=NULL) const 
bool  operator== (const GfLine &l) const 
bool  operator!= (const GfLine &r) const 
Friends  
GF_API friend bool  GfFindClosestPoints (const GfLine &, const GfLine &, GfVec3d *, GfVec3d *, double *, double *) 
Basic type: 3D line
This class represents a threedimensional line in space. Lines are constructed from a point, p0
, and a direction, dir. The direction is normalized in the constructor.
The line is kept in a parametric represention, p = p0 + t * dir.

inline 
Returns the point on the line that is closest to point
. If t
is not NULL
, it will be set to the parametric distance along the line of the returned point.

inline 

inline 

friend 
Computes the closets points between two lines.
The two points are returned in p1
and p2
. The parametric distance of each point on the lines is returned in t1
and t2
.
This returns false
if the lines were close enough to parallel that no points could be computed; in this case, the other return values are undefined.