EC_LINE Class Reference

EDIT_CONSTRAINT that imposes a constraint that a point has to lie on a line (determined by 2 points). More...

#include <edit_constraints.h>

Inheritance diagram for EC_LINE:

Public Member Functions
	EC_LINE (EDIT_POINT &aConstrained, const EDIT_POINT &aConstrainer)
	Correct coordinates of the constrained edit handle. More...
virtual void	Apply (EDIT_POINT &aHandle) override
	Correct coordinates of the constrained edit handle. More...
void	Apply ()
	Correct coordinates of the constrained edit handle. More...

Protected Attributes
EDIT_POINT &	m_constrained
	Point that is constrained by rules implemented by Apply(). More...

Private Attributes
const EDIT_POINT &	m_constrainer
	Point that imposes the constraint. More...
VECTOR2I	m_line
	Vector representing the constraining line. More...

Detailed Description

EDIT_CONSTRAINT that imposes a constraint that a point has to lie on a line (determined by 2 points).

Definition at line 152 of file edit_constraints.h.

Constructor & Destructor Documentation

EC_LINE()

EC_LINE::EC_LINE	(	EDIT_POINT &	aConstrained,
		const EDIT_POINT &	aConstrainer
	)

Correct coordinates of the constrained edit handle.

Definition at line 63 of file edit_constraints.cpp.

                                                                           :
    EDIT_CONSTRAINT<EDIT_POINT>( aConstrained ), m_constrainer( aConstrainer )
{
    m_line = m_constrained.GetPosition() - m_constrainer.GetPosition();
}

References EDIT_POINT::GetPosition(), EDIT_CONSTRAINT< EDIT_POINT >::m_constrained, m_constrainer, and m_line.

Member Function Documentation

Apply() [1/2]

void EDIT_CONSTRAINT< EDIT_POINT >::Apply ( )

inlineinherited

Correct coordinates of the constrained edit handle.

Definition at line 71 of file edit_constraints.h.

    {
        Apply( m_constrained );
    }

Apply() [2/2]

void EC_LINE::Apply ( EDIT_POINT &  aHandle )

overridevirtual

Correct coordinates of the constrained edit handle.

Implements EDIT_CONSTRAINT< EDIT_POINT >.

Definition at line 70 of file edit_constraints.cpp.

{
    SEG main( m_constrainer.GetPosition(), m_constrainer.GetPosition() + m_line );
    SEG projection( aHandle.GetPosition(), aHandle.GetPosition() + m_line.Perpendicular() );

    if( OPT_VECTOR2I intersect = projection.IntersectLines( main ) )
        aHandle.SetPosition( *intersect );
}

References EDIT_POINT::GetPosition(), intersect(), m_constrainer, m_line, main(), VECTOR2< T >::Perpendicular(), and EDIT_POINT::SetPosition().

Member Data Documentation

m_constrained

EDIT_POINT & EDIT_CONSTRAINT< EDIT_POINT >::m_constrained

protectedinherited

Point that is constrained by rules implemented by Apply().

Definition at line 77 of file edit_constraints.h.

m_constrainer

const EDIT_POINT& EC_LINE::m_constrainer

private

Point that imposes the constraint.

Definition at line 161 of file edit_constraints.h.

Referenced by Apply(), and EC_LINE().

m_line

VECTOR2I EC_LINE::m_line

private

Vector representing the constraining line.

Definition at line 162 of file edit_constraints.h.

Referenced by Apply(), and EC_LINE().

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

• edit_constraints.h
• edit_constraints.cpp