osmscout::CoordBufferRange Class Reference

Hold a reference to a range of data within a CoordBuffer. More...

#include <Transformation.h>

Public Member Functions
	CoordBufferRange ()=default
	CoordBufferRange (const CoordBufferRange &other)=default
	CoordBufferRange (CoordBuffer &coordBuffer, size_t start, size_t end)
Vertex2D	Get (size_t index) const
	Return the element with the given index.
size_t	GetEnd () const
	THe index of the last element.
Vertex2D	GetFirst () const
	Return the first element on the path.
Vertex2D	GetLast () const
	Return the last element on the path.
double	GetLength () const
	Returns the on-screen length of the path from the first to the last element.
size_t	GetSize () const
	Returns the number of elements (end-start+1)
size_t	GetStart () const
	Return the index of the first element.
bool	IsValid () const
CoordBufferRange &	operator= (const CoordBufferRange &other)

Detailed Description

Hold a reference to a range of data within a CoordBuffer.

Constructor & Destructor Documentation

CoordBufferRange() [1/3]

osmscout::CoordBufferRange::CoordBufferRange ( )

default

CoordBufferRange() [2/3]

osmscout::CoordBufferRange::CoordBufferRange ( const CoordBufferRange &  other )

default

CoordBufferRange() [3/3]

osmscout::CoordBufferRange::CoordBufferRange ( CoordBuffer &  coordBuffer, size_t  start, size_t  end  )

inline

Member Function Documentation

Get()

Vertex2D osmscout::CoordBufferRange::Get ( size_t  index ) const

inline

Return the element with the given index.

Parameters

index

where index>=start && index<=end

Returns

the element at the given index

References osmscout::CoordBuffer::buffer.

Referenced by osmscout::MapPainterCairo::DrawArea(), osmscout::MapPainterQt::DrawArea(), osmscout::MapPainterCairo::DrawContourSymbol(), osmscout::MapPainterCairo::DrawPath(), and osmscout::MapPainterQt::DrawPath().

GetEnd()

size_t osmscout::CoordBufferRange::GetEnd ( ) const

inline

THe index of the last element.

Returns

index

Referenced by osmscout::MapPainterAgg::DrawArea(), osmscout::MapPainterCairo::DrawArea(), osmscout::MapPainterQt::DrawArea(), osmscout::MapPainterSVG::DrawArea(), osmscout::MapPainterCairo::DrawContourSymbol(), osmscout::MapPainterAgg::DrawPath(), osmscout::MapPainterCairo::DrawPath(), osmscout::MapPainterQt::DrawPath(), osmscout::MapPainterSVG::DrawPath(), osmscout::MapPainterSVG::DrawWay(), and osmscout::CoordBuffer::GenerateParallelWay().

GetFirst()

Vertex2D osmscout::CoordBufferRange::GetFirst ( ) const

inline

Return the first element on the path.

Returns

first element

References osmscout::CoordBuffer::buffer.

Referenced by osmscout::MapPainterCairo::DrawArea(), osmscout::MapPainterQt::DrawArea(), osmscout::MapPainterCairo::DrawContourSymbol(), osmscout::MapPainterCairo::DrawPath(), and osmscout::MapPainterQt::DrawPath().

GetLast()

Vertex2D osmscout::CoordBufferRange::GetLast ( ) const

inline

Return the last element on the path.

Returns

last element

References osmscout::CoordBuffer::buffer.

Referenced by osmscout::MapPainterCairo::DrawPath(), and osmscout::MapPainterQt::DrawPath().

GetLength()

double osmscout::CoordBufferRange::GetLength ( ) const

inline

Returns the on-screen length of the path from the first to the last element.

Returns

length of path

References osmscout::Vertex2D::GetX(), and osmscout::Vertex2D::GetY().

Referenced by osmscout::MapPainterCairo::DrawContourSymbol().

GetSize()

size_t osmscout::CoordBufferRange::GetSize ( ) const

inline

Returns the number of elements (end-start+1)

Returns

number of elements

GetStart()

size_t osmscout::CoordBufferRange::GetStart ( ) const

inline

Return the index of the first element.

Returns

index

Referenced by osmscout::MapPainterAgg::DrawArea(), osmscout::MapPainterCairo::DrawArea(), osmscout::MapPainterQt::DrawArea(), osmscout::MapPainterSVG::DrawArea(), osmscout::MapPainterCairo::DrawContourSymbol(), osmscout::MapPainterAgg::DrawPath(), osmscout::MapPainterCairo::DrawPath(), osmscout::MapPainterQt::DrawPath(), osmscout::MapPainterSVG::DrawPath(), osmscout::MapPainterSVG::DrawWay(), and osmscout::CoordBuffer::GenerateParallelWay().

IsValid()

bool osmscout::CoordBufferRange::IsValid ( ) const

inline

operator=()

CoordBufferRange & osmscout::CoordBufferRange::operator= ( const CoordBufferRange &  other )

inline

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

• Transformation.h