h2d::ppair Namespace Reference

Holds free functions returning a pair of points. More...

Functions
template<typename T >
auto	getPointPair (const T &elem)
	Returns pair of points defining a BB of a primitive Overload 1/4, private free function. More...
template<typename T , typename std::enable_if< std::is_same< T, Point2d_< typename T::FType >>::value, T >::type * = nullptr>
auto	getPointPair (const T &elem)
	Returns pair of points defining a BB of a Point2d Overload 3/4, private free function. More...
template<typename FPT >
PointPair_< FPT >	getPointPair (const Line2d_< FPT > &)
	Needed because of variant. More...

Detailed Description

Holds free functions returning a pair of points.

Function Documentation

getPointPair() [1/3]

template<typename T >

auto h2d::ppair::getPointPair

(

const T &

elem

)

Returns pair of points defining a BB of a primitive Overload 1/4, private free function.

Returns pair of points defining a BB of Segment Overload 4/4, private free function.

Returns pair of points defining a BB of a Polyline Overload 2/4, private free function.

Arg is a neither a Point2d, a Segment, a Line2d or a polyline

{
    HOMOG2D_START;
    return elem.getBB().getPts();
}

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getPointPair() [2/3]

template<typename T , typename std::enable_if< std::is_same< T, Point2d_< typename T::FType >>::value, T >::type * = nullptr>

auto h2d::ppair::getPointPair

(

const T &

elem

)

Returns pair of points defining a BB of a Point2d Overload 3/4, private free function.

This seems useless at first glance, but it is used to get the common bounding box of two objects when one of them (or both) is a point.

{
    HOMOG2D_START;
    return std::make_pair( Point2d_<HOMOG2D_INUMTYPE>(elem), Point2d_<HOMOG2D_INUMTYPE>(elem) );
}

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getPointPair() [3/3]

template<typename FPT >

PointPair_<FPT> h2d::ppair::getPointPair

(

const Line2d_< FPT > &

)

Needed because of variant.

{
    HOMOG2D_START;
    HOMOG2D_THROW_ERROR_1( "Unable to get pair of points for a Line2d" );
}

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