MgEnvelope Class Reference

MgEnvelope represents a bounding box defined in terms of a lower left coordinate and an upper right coordinate. More...

Inheritance diagram for MgEnvelope:

List of all members.

Public Member Functions
bool	Contains (MgCoordinate *coordinate)
	Tests whether the given coordinate lies in or on this envelope.
bool	Contains (MgEnvelope *envelope)
	Tests whether the given envelope lies completely inside this Envelope (inclusive of the boundary).
void	ExpandToInclude (MgCoordinate *coordinate)
	Enlarges the boundary of the envelope so that it contains the given coordinate.
void	ExpandToInclude (MgEnvelope *envelope)
	Enlarges the boundary of the envelope so that it contains the given envelope.
double	GetDepth ()
double	GetHeight ()
MgCoordinate *	GetLowerLeftCoordinate ()
	Returns the lower left coordinate of the envelope.
MgCoordinate *	GetUpperRightCoordinate ()
double	GetWidth ()
bool	Intersects (MgEnvelope *envelope)
	Tests if the region defined by another envelope overlaps (intersects) the region of this envelope.
bool	IsNull ()
void	MakeNull ()
	Makes this envelope a "null" envelope.
	MgEnvelope ()
	Constructs and initializes an "null" envelope.
	MgEnvelope (MgCoordinate *coord)
	Constructs and initializes an envelope for a region defined by one coordinate.
	MgEnvelope (MgCoordinate *coord1, MgCoordinate *coord2)
	Constructs and initializes an envelope for a region defined by two coordinates.
	MgEnvelope (double xMin, double yMin, double xMax, double yMax)
	Constructs and initializes an envelope for a region defined by two coordinates , given as four doubles.
	MgEnvelope (MgEnvelope *envelope)
	Constructs and initializes an envelope that is a copy of another.
MgEnvelope *	Transform (MgTransform *transform)
	Returns a transformed copy of this envelope.

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Detailed Description

MgEnvelope represents a bounding box defined in terms of a lower left coordinate and an upper right coordinate.