d2linesegment Class Reference

Line segment and with line segement intersection test. More...

#include <d2linesegment.h>

Collaboration diagram for d2linesegment:

List of all members.

Public Member Functions
bool const	intersects (d2linesegment const &s2) const
	Do the two line segments intersect?
void	rotate (double const theta)
	Anticlockwise rotation of the simplex about its center.
void	translate (pt2c &x)
	Shift the simplex.
Public Attributes
point2< double >	v [2]
	Points defining the line segment.

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Detailed Description

Line segment and with line segement intersection test.

Definition at line 7 of file d2linesegment.h.

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Member Function Documentation

bool const d2linesegment::intersects

(

d2linesegment const &

s2

)

const

Do the two line segments intersect?

Definition at line 19 of file d2linesegment.cpp.

References lineSegmentIntersection(), and v.

{
  return lineSegmentIntersection(v[0],v[1],s2.v[0],v2.v[1],1E-5);
}

void d2linesegment::rotate

(

double const

theta

)

Anticlockwise rotation of the simplex about its center.

Definition at line 11 of file d2linesegment.cpp.

References v.

{
  R.setRotateAboutPoint(theta,v[0]);

  for (uint i=0; i<2; ++i)
    R.matrixMultiply(v[i]);
}

void d2linesegment::translate

(

pt2c &

x

)

Shift the simplex.

Definition at line 5 of file d2linesegment.cpp.

References v.

{
  for (uint i=0; i<2; ++i)
    v[i] += x; 
}

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Member Data Documentation

point2<double> d2linesegment::v[2]

Points defining the line segment.

Definition at line 12 of file d2linesegment.h.

Referenced by intersects(), rotate(), and translate().

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The documentation for this class was generated from the following files:

• intersectiontests/d2linesegment.h
• intersectiontests/d2linesegment.cpp