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mrpt::math::TLine2D Struct Reference

2D line without bounds, represented by its equation $Ax+By+C=0$. More...

#include <mrpt/math/lightweight_geom_data.h>

List of all members.

Public Member Functions

double evaluatePoint (const TPoint2D &point) const
 Evaluate point in the line's equation.
bool contains (const TPoint2D &point) const
 Check whether a point is inside the line.
double distance (const TPoint2D &point) const
 Distance from a given point.
void getNormalVector (double(&vector)[2]) const
 Get line's normal vector.
void unitarize ()
 Unitarize line's normal vector.
void getUnitaryNormalVector (double(&vector)[2])
 Get line's normal vector after unitarizing line.
void getDirectorVector (double(&vector)[2]) const
 Get line's director vector.
void getUnitaryDirectorVector (double(&vector)[2])
 Unitarize line and then get director vector.
void generate3DObject (TLine3D &l) const
 Project into 3D space, setting the z to 0.
void getAsPose2D (mrpt::poses::CPose2D &outPose) const
 Get a pose2D whose X axis corresponds to the line.
void getAsPose2DForcingOrigin (const TPoint2D &origin, mrpt::poses::CPose2D &outPose) const
 Get a pose2D whose X axis corresponds to the line, forcing the base point to one given.
 TLine2D (const TPoint2D &p1, const TPoint2D &p2) throw (std::logic_error)
 Constructor from two points, through which the line will pass.
 TLine2D (const TSegment2D &s)
 Constructor from a segment.
 TLine2D ()
 Fast default constructor.
 TLine2D (double A, double B, double C)
 Constructor from line's coefficients.
 TLine2D (const TLine3D &l)
 Construction from 3D object, discarding the Z.

Public Attributes

double coefs [3]
 Line coefficients, stored as an array: $\left[A,B,C\right]$.

Detailed Description

2D line without bounds, represented by its equation $Ax+By+C=0$.

See also:
TLine3D,TSegment2D,TPolygon2D,TPoint2D

Definition at line 608 of file lightweight_geom_data.h.


Constructor & Destructor Documentation

mrpt::math::TLine2D::TLine2D ( const TPoint2D p1,
const TPoint2D p2 
) throw (std::logic_error)

Constructor from two points, through which the line will pass.

Exceptions:
logic_error if both points are the same
mrpt::math::TLine2D::TLine2D ( const TSegment2D s  )  [explicit]

Constructor from a segment.

mrpt::math::TLine2D::TLine2D (  )  [inline]

Fast default constructor.

Initializes to garbage.

Definition at line 679 of file lightweight_geom_data.h.

mrpt::math::TLine2D::TLine2D ( double  A,
double  B,
double  C 
) [inline]

Constructor from line's coefficients.

Definition at line 683 of file lightweight_geom_data.h.

mrpt::math::TLine2D::TLine2D ( const TLine3D l  )  [explicit]

Construction from 3D object, discarding the Z.

Exceptions:
std::logic_error if the line is normal to the XY plane.

Member Function Documentation

bool mrpt::math::TLine2D::contains ( const TPoint2D point  )  const

Check whether a point is inside the line.

double mrpt::math::TLine2D::distance ( const TPoint2D point  )  const

Distance from a given point.

double mrpt::math::TLine2D::evaluatePoint ( const TPoint2D point  )  const

Evaluate point in the line's equation.

void mrpt::math::TLine2D::generate3DObject ( TLine3D l  )  const

Project into 3D space, setting the z to 0.

void mrpt::math::TLine2D::getAsPose2D ( mrpt::poses::CPose2D outPose  )  const

Get a pose2D whose X axis corresponds to the line.

See also:
mrpt::poses::CPose2D.

Referenced by mrpt::math::project2D().

void mrpt::math::TLine2D::getAsPose2DForcingOrigin ( const TPoint2D origin,
mrpt::poses::CPose2D outPose 
) const

Get a pose2D whose X axis corresponds to the line, forcing the base point to one given.

Exceptions:
logic_error if the point is not inside the line.
See also:
mrpt::poses::CPose2D.

Referenced by mrpt::math::project2D().

void mrpt::math::TLine2D::getDirectorVector ( double(&)  vector[2]  )  const

Get line's director vector.

void mrpt::math::TLine2D::getNormalVector ( double(&)  vector[2]  )  const

Get line's normal vector.

void mrpt::math::TLine2D::getUnitaryDirectorVector ( double(&)  vector[2]  )  [inline]

Unitarize line and then get director vector.

Definition at line 648 of file lightweight_geom_data.h.

void mrpt::math::TLine2D::getUnitaryNormalVector ( double(&)  vector[2]  )  [inline]

Get line's normal vector after unitarizing line.

Definition at line 637 of file lightweight_geom_data.h.

void mrpt::math::TLine2D::unitarize (  ) 

Unitarize line's normal vector.


Member Data Documentation

Line coefficients, stored as an array: $\left[A,B,C\right]$.

Definition at line 613 of file lightweight_geom_data.h.

Referenced by mrpt::math::operator<<(), and mrpt::math::operator>>().




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