Graphic2d_SetOfSegments Class Reference

The primitive SetOfSegments
Warning: This primitive must be use as possible for performance
improvment but is drawn with a global line attributes
for all the set.
But when the set contains a lot of contigous segments
with a line attrib different to the default,it's
more preferable to use a SetOfPolylines for to insure
a better quality.
NOTE: than the method PickedIndex() permits to known
the last picked segment in the set.

#include <Graphic2d_SetOfSegments.hxx>

Inheritance diagram for Graphic2d_SetOfSegments:

Public Member Functions
	Graphic2d_SetOfSegments (const Handle< Graphic2d_GraphicObject > &aGraphicObject)
	Creates an empty set of segments in the graphic object <aGraphicObject>.
void	Add (const Quantity_Length X1, const Quantity_Length Y1, const Quantity_Length X2, const Quantity_Length Y2)
	Add a segment in the set The first point is <X1>, <Y1>. The second point is <X2>, <Y2>. Trigger: Raises SegmentDefinitionError if the first point and the second point are identical.
Standard_Integer	Length () const
	Returns the number of segments in the set.
void	Values (const Standard_Integer aRank, Quantity_Length &X1, Quantity_Length &Y1, Quantity_Length &X2, Quantity_Length &Y2) const
	Returns the segment of rank <aRank> from the set. Trigger: Raises OutOfRange if <aRank> is <1 or >Length()
virtual void	Save (Aspect_FStream &aFStream) const
Protected Member Functions
void	Draw (const Handle< Graphic2d_Drawer > &aDrawer)
	Draws the set of segments <me>.
virtual void	DrawElement (const Handle< Graphic2d_Drawer > &aDrawer, const Standard_Integer anIndex)
	Draws element <anIndex> of the set <me>.
virtual void	DrawVertex (const Handle< Graphic2d_Drawer > &aDrawer, const Standard_Integer anIndex)
	Draws vertex <anIndex> of the set <me>.
Standard_Boolean	Pick (const Standard_ShortReal X, const Standard_ShortReal Y, const Standard_ShortReal aPrecision, const Handle< Graphic2d_Drawer > &aDrawer)
	Returns Standard_True if one segment of the set <me> is picked, Standard_False if not. Warning: The PickIndex() method returns the rank of the picked segment if any.

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Constructor & Destructor Documentation

Graphic2d_SetOfSegments::Graphic2d_SetOfSegments

(

const Handle< Graphic2d_GraphicObject > &

aGraphicObject

)

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Member Function Documentation

void Graphic2d_SetOfSegments::Add	(	const Quantity_Length	X1,
		const Quantity_Length	Y1,
		const Quantity_Length	X2,
		const Quantity_Length	Y2
	)

void Graphic2d_SetOfSegments::Draw

(

const Handle< Graphic2d_Drawer > &

aDrawer

)

[protected, virtual]

Implements Graphic2d_Primitive.

virtual void Graphic2d_SetOfSegments::DrawElement	(	const Handle< Graphic2d_Drawer > &	aDrawer,
		const Standard_Integer	anIndex
	)		[protected, virtual]

Reimplemented from Graphic2d_Primitive.

virtual void Graphic2d_SetOfSegments::DrawVertex	(	const Handle< Graphic2d_Drawer > &	aDrawer,
		const Standard_Integer	anIndex
	)		[protected, virtual]

Reimplemented from Graphic2d_Primitive.

Standard_Integer Graphic2d_SetOfSegments::Length

(

)

const

Standard_Boolean Graphic2d_SetOfSegments::Pick	(	const Standard_ShortReal	X,
		const Standard_ShortReal	Y,
		const Standard_ShortReal	aPrecision,
		const Handle< Graphic2d_Drawer > &	aDrawer
	)		[protected, virtual]

Implements Graphic2d_Primitive.

virtual void Graphic2d_SetOfSegments::Save

(

Aspect_FStream &

aFStream

)

const [virtual]

Reimplemented from Graphic2d_Line.

void Graphic2d_SetOfSegments::Values	(	const Standard_Integer	aRank,
		Quantity_Length &	X1,
		Quantity_Length &	Y1,
		Quantity_Length &	X2,
		Quantity_Length &	Y2
	)		const

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

• Graphic2d_SetOfSegments.hxx