
Basic type: 2D line segment. More...
Public Member Functions  
GfLineSeg2d ()  
The default constructor leaves line parameters undefined. More...  
GfLineSeg2d (const GfVec2d &p0, const GfVec2d &p1)  
Construct a line segment that spans two points. More...  
GfVec2d  GetPoint (double t) const 
Return the point on the segment specified by the parameter t. More...  
const GfVec2d &  GetDirection () const 
Return the normalized direction of the line. More...  
double  GetLength () const 
Return the length of the line. More...  
GF_API GfVec2d  FindClosestPoint (const GfVec2d &point, double *t=NULL) const 
Returns the point on the line that is closest to point . More...  
bool  operator== (const GfLineSeg2d &l) const 
Componentwise equality test. More...  
bool  operator != (const GfLineSeg2d &r) const 
Componentwise inequality test. More...  
Friends  
GF_API friend bool  GfFindClosestPoints (const GfLine2d &, const GfLineSeg2d &, GfVec2d *, GfVec2d *, double *t1, double *t2) 
Computes the closets points on line and seg . More...  
GF_API friend bool  GfFindClosestPoints (const GfLineSeg2d &, const GfLineSeg2d &, GfVec2d *, GfVec2d *, double *, double *) 
Computes the closets points on two line segments, seg1 and seg2 . More...  
Basic type: 2D line segment.
This class represents a threedimensional line segment in space.
Definition at line 46 of file lineSeg2d.h.

inline 
The default constructor leaves line parameters undefined.
Definition at line 51 of file lineSeg2d.h.

inline 
Construct a line segment that spans two points.
Definition at line 55 of file lineSeg2d.h.
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 closest point.

inline 
Return the normalized direction of the line.
Definition at line 64 of file lineSeg2d.h.

inline 
Return the length of the line.
Definition at line 67 of file lineSeg2d.h.

inline 
Return the point on the segment specified by the parameter t.
p = p0 + t * (p1  p0)
Definition at line 61 of file lineSeg2d.h.

inline 
Componentwise inequality test.
The starting points, and directions must match exactly for lines to be considered equal.
Definition at line 84 of file lineSeg2d.h.

inline 
Componentwise equality test.
The starting points and directions, must match exactly for lines to be considered equal.
Definition at line 77 of file lineSeg2d.h.

friend 
Computes the closets points on line
and seg
.
The two points are returned in p1
and p2
. The parametric distances of p1
and p2
along the line and segment are 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.

friend 
Computes the closets points on two line segments, seg1
and seg2
.
The two points are returned in p1
and p2
. The parametric distances of p1
and p2
along the segments are 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.