Implementation of PlanarFigure representing a circle through two control points. More...

#include <mitkPlanarCircle.h>

Inheritance diagram for mitk::PlanarCircle:

Collaboration diagram for mitk::PlanarCircle:

Public Types
typedef PlanarCircle	Self
typedef PlanarFigure	Superclass
typedef itk::SmartPointer< Self >	Pointer
typedef itk::SmartPointer < const Self >	ConstPointer
Public Member Functions
virtual const char *	GetClassName () const
bool	SetControlPoint (unsigned int index, const Point2D &point, bool createIfDoesNotExist)
	Place figure in its minimal configuration (a point at least) onto the given 2D geometry.
unsigned int	GetMinimumNumberOfControlPoints () const
	Circle has 2 control points per definition.
unsigned int	GetMaximumNumberOfControlPoints () const
	Circle has 2 control points per definition.
Static Public Member Functions
static Pointer	New ()
Protected Member Functions
	PlanarCircle ()
virtual	~PlanarCircle ()
virtual void	GeneratePolyLine ()
	Generates the poly-line representation of the planar figure.
virtual void	GenerateHelperPolyLine (double mmPerDisplayUnit, unsigned int displayHeight)
	Generates the poly-lines that should be drawn the same size regardless of zoom.
virtual void	EvaluateFeaturesInternal ()
	Calculates feature quantities of the planar figure.
virtual void	PrintSelf (std::ostream &os, itk::Indent indent) const
Protected Attributes
const unsigned int	FEATURE_ID_RADIUS
const unsigned int	FEATURE_ID_DIAMETER
const unsigned int	FEATURE_ID_AREA

Detailed Description

Implementation of PlanarFigure representing a circle through two control points.

Definition at line 35 of file mitkPlanarCircle.h.

Member Typedef Documentation

typedef itk::SmartPointer<const Self> mitk::PlanarCircle::ConstPointer

Reimplemented from mitk::PlanarFigure.

Definition at line 38 of file mitkPlanarCircle.h.

typedef itk::SmartPointer<Self> mitk::PlanarCircle::Pointer

Reimplemented from mitk::PlanarFigure.

Definition at line 38 of file mitkPlanarCircle.h.

typedef PlanarCircle mitk::PlanarCircle::Self

Reimplemented from mitk::PlanarFigure.

Definition at line 38 of file mitkPlanarCircle.h.

typedef PlanarFigure mitk::PlanarCircle::Superclass

Reimplemented from mitk::PlanarFigure.

Definition at line 38 of file mitkPlanarCircle.h.

Constructor & Destructor Documentation

mitk::PlanarCircle::PlanarCircle ( ) [protected]

Definition at line 25 of file mitkPlanarCircle.cpp.

References mitk::PlanarFigure::m_PolyLines, mitk::BoolProperty::New(), mitk::PlanarFigure::ResetNumberOfControlPoints(), and mitk::BaseData::SetProperty().

: FEATURE_ID_RADIUS( this->AddFeature( "Radius", "mm" ) ),
  FEATURE_ID_DIAMETER( this->AddFeature( "Diameter", "mm" ) ),
  FEATURE_ID_AREA( this->AddFeature( "Area", "mm^2" ) )
{
  // Circle has two control points
  this->ResetNumberOfControlPoints( 2 );
  this->SetProperty( "closed", mitk::BoolProperty::New(true) );

  m_PolyLines->InsertElement( 0, VertexContainerType::New());
}

mitk::PlanarCircle::~PlanarCircle ( ) [protected, virtual]

Definition at line 38 of file mitkPlanarCircle.cpp.

{
}

Member Function Documentation

void mitk::PlanarCircle::EvaluateFeaturesInternal ( ) [protected, virtual]

Calculates feature quantities of the planar figure.

Implements mitk::PlanarFigure.

Definition at line 116 of file mitkPlanarCircle.cpp.

{
  // Calculate circle radius and area
  const Point3D &p0 = this->GetWorldControlPoint( 0 );
  const Point3D &p1 = this->GetWorldControlPoint( 1 );

  double radius = p0.EuclideanDistanceTo( p1 );
  double area = vnl_math::pi * radius * radius;

  this->SetQuantity( FEATURE_ID_RADIUS, radius );
  this->SetQuantity( FEATURE_ID_DIAMETER, 2*radius );
  this->SetQuantity( FEATURE_ID_AREA, area );
}

void mitk::PlanarCircle::GenerateHelperPolyLine	(	double	mmPerDisplayUnit,
		unsigned int	displayHeight
	)		`[protected, virtual]`

Generates the poly-lines that should be drawn the same size regardless of zoom.

Implements mitk::PlanarFigure.

Definition at line 111 of file mitkPlanarCircle.cpp.

{
  // A circle does not require a helper object
}

void mitk::PlanarCircle::GeneratePolyLine ( ) [protected, virtual]

Generates the poly-line representation of the planar figure.

Implements mitk::PlanarFigure.

Definition at line 91 of file mitkPlanarCircle.cpp.

References QuadProgPP::t().

{
  // TODO: start circle at specified boundary point...

  const Point2D &centerPoint = m_ControlPoints->ElementAt( 0 );
  const Point2D &boundaryPoint = m_ControlPoints->ElementAt( 1 );

  double radius = centerPoint.EuclideanDistanceTo( boundaryPoint );

  // Generate poly-line with 64 segments
  m_PolyLines->ElementAt( 0 )->Reserve( 64 );
  for ( int t = 0; t < 64; ++t )
  {
    double alpha = (double) t * vnl_math::pi / 32.0;

    m_PolyLines->ElementAt( 0 )->ElementAt( t )[0] = centerPoint[0] + radius * cos( alpha );
    m_PolyLines->ElementAt( 0 )->ElementAt( t )[1] = centerPoint[1] + radius * sin( alpha );
  }
}

virtual const char* mitk::PlanarCircle::GetClassName ( ) const [virtual]

Reimplemented from mitk::PlanarFigure.

unsigned int mitk::PlanarCircle::GetMaximumNumberOfControlPoints ( ) const [inline, virtual]

Circle has 2 control points per definition.

Implements mitk::PlanarFigure.

Definition at line 60 of file mitkPlanarCircle.h.

  {
    return 2;
  }

unsigned int mitk::PlanarCircle::GetMinimumNumberOfControlPoints ( ) const [inline, virtual]

Circle has 2 control points per definition.

Implements mitk::PlanarFigure.

Definition at line 53 of file mitkPlanarCircle.h.

  {
    return 2;
  }

static Pointer mitk::PlanarCircle::New ( ) [static]

Referenced by QmitkMeasurement::ActionDrawEllipseTriggered(), PlanarFigureIOTestClass::CreatePlanarFigures(), mitk::PlanarFigureReader::GenerateData(), and mitk::PlanarFigureReader::MakeOutput().

void mitk::PlanarCircle::PrintSelf	(	std::ostream &	os,
		itk::Indent	indent
	)		const `[protected, virtual]`

Reimplemented from mitk::PlanarFigure.

Definition at line 131 of file mitkPlanarCircle.cpp.

{
  Superclass::PrintSelf( os, indent );
}

bool mitk::PlanarCircle::SetControlPoint	(	unsigned int	index,
		const Point2D &	point,
		bool	createIfDoesNotExist
	)		`[virtual]`

Place figure in its minimal configuration (a point at least) onto the given 2D geometry.

Must be implemented in sub-classes.

Reimplemented from mitk::PlanarFigure.

Definition at line 69 of file mitkPlanarCircle.cpp.

{
  // moving center point
  if(index == 0)
  {
    const Point2D &centerPoint = m_ControlPoints->ElementAt( 0 );
    Point2D boundaryPoint = m_ControlPoints->ElementAt( 1 );
    vnl_vector<float> vec = (point.GetVnlVector() - centerPoint.GetVnlVector());

    boundaryPoint[0] += vec[0];
    boundaryPoint[1] += vec[1];
    m_ControlPoints->InsertElement( 0, point );
    m_ControlPoints->InsertElement( 1, boundaryPoint );
  }
  else if ( index == 1 )
  {
    m_ControlPoints->InsertElement( index, point );
    return true;
  }
  return false;
}