linechopped< PT, PD > Class Template Reference

Maintain a linked list of chopped line segments. More...

#include <linechopped.h>

Collaboration diagram for linechopped< PT, PD >:

List of all members.

Public Types
typedef list< point2< PD > >::iterator	listiter
Public Member Functions
	linechopped (line< PT, PD > const &ln_, point2< PD > const &seg)
	Pass in an initial line segment.
boolc	split (listiter &posnew, listiter pos, line< PT, PD > const &L2)
	Split into two segments.
Public Attributes
line< PT, PD >	ln
	The line.
list< point2< PD > >	chain
	Chain segments.

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Detailed Description

template<typename PT, typename PD>
class linechopped< PT, PD >

Maintain a linked list of chopped line segments.

Definition at line 17 of file linechopped.h.

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Member Typedef Documentation

template<typename PT , typename PD >

typedef list< point2<PD> >::iterator linechopped< PT, PD >::listiter

Definition at line 36 of file linechopped.h.

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Constructor & Destructor Documentation

template<typename PT , typename PD >

linechopped< PT, PD >::linechopped	(	line< PT, PD > const &	ln_,
		point2< PD > const &	seg
	)			[inline]

Pass in an initial line segment.

Definition at line 29 of file linechopped.h.

References linechopped< PT, PD >::chain.

    : ln(ln_)
    { chain.push_back( seg ); }

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Member Function Documentation

template<typename PT , typename PD >

boolc linechopped< PT, PD >::split	(	listiter &	posnew,
		listiter	pos,
		line< PT, PD > const &	L2
	)			[inline]

Split into two segments.

The order is maintained. If the new element is inserted posnew then points to it and is before pos.

Definition at line 132 of file linechopped.h.

References solver< T >::d2linearequ(), line< PT, PD >::nml, and line< PT, PD >::pos.

{
  bool res;
  point2<PD> t;
  res = solver<PD>::d2linearequ
    (t,ln.nml,L2.nml*((PD)-1.0), L2.pos - ln.pos);

  if (res==false)
    return false;

  PD t0(t[0]);

  if (t0<(*pos)[0])
    return false;

  if (t0>(*pos)[1])
    return false;

  // The line is being split.

  PD k0((*pos)[0]);
  (*pos)[0] = t0;
  
  posnew = chain.insert(pos,point2<PD>(k0,t0));

  return true;
}

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Member Data Documentation

template<typename PT , typename PD >

list< point2<PD> > linechopped< PT, PD >::chain

Chain segments.

Definition at line 25 of file linechopped.h.

Referenced by linechopped< PT, PD >::linechopped().

template<typename PT , typename PD >

line<PT,PD> linechopped< PT, PD >::ln

The line.

Definition at line 22 of file linechopped.h.

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

• mathlib/linechopped.h