Public Member Functions¶

SbDPLine (void)
SbDPLine (const SbVec3d &p0, const SbVec3d &p1)
void setValue (const SbVec3d &p0, const SbVec3d &p1)
SbBool getClosestPoints (const SbDPLine &line2, SbVec3d &ptOnThis, SbVec3d &ptOnLine2) const
SbVec3d getClosestPoint (const SbVec3d &point) const
const SbVec3d & getPosition (void) const
const SbVec3d & getDirection (void) const
void print (FILE *file) const

SbDPLine::SbDPLine (void)¶

The empty constructor does nothing. The line will be uninitialized until the first assignment or setValue() call.

SbDPLine::SbDPLine (const SbVec3d & p0, const SbVec3d & p1)¶

Constructor with p0 specifying the line start point and p1 the line end point. p0 should not be the same as p1, as this will lead to having a null vector as the direction vector, which would cause division by zero problems in some of the other methods on this class.

void SbDPLine::setValue (const SbVec3d & p0, const SbVec3d & p1)¶

Set new position and direction of the line by specifying line start point and end point. p0 should not be the same as p1, as this will lead to having a null vector as the direction vector, which would cause division by zero problems in some of the other methods on this class.

SbBool SbDPLine::getClosestPoints (const SbDPLine & line2, SbVec3d & ptOnThis, SbVec3d & ptOnLine2) const¶

Returns the two closest points on the lines. If the lines are parallel, all points are equally close and we return FALSE. If the lines are not parallel, the point positions will be stored in ptOnThis and ptOnLine2, and we'll return TRUE.

See also

SbVec3d SbDPLine::getClosestPoint (const SbVec3d & point) const¶

Returns the point on the line which is closest to point.

See also

const SbVec3d & SbDPLine::getPosition (void) const¶

Return a vector representing a point on the line.

const SbVec3d & SbDPLine::getDirection (void) const¶

Return a vector representing the direction of the line. The direction vector will always be normalized.

void SbDPLine::print (FILE * fp) const¶

Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.