class Geo::GeoNonAABoundingBox

Non axis aligned bounding box. Note the "m_Pos" of this class is the CORNER (origin), not the centre.

Functions

Name	Description
ContainsPoint(const Geo::v128 &)	Returns true if the supplied point is inside the box.
DistanceToPoint(const Geo::v128 &)	Returns the shortest distance from the supplied point to the box. NOTE: Returns a negative distance for points inside the box.
GeoNonAABoundingBox()	Constructors.
GeoNonAABoundingBox(const Geo::GeoBoundingBox &)	Constructors.
GeoNonAABoundingBox(const Geo::v128, const Geo::v128, const Geo::v128)	Constructors.
GetAxisAlignedBoundingBox()	Gets the minimum axis-aligned bounding box that contains this box.
GetBasis(s32)	Gets the basis vector defining the X, Y or Z principal axis of this box (0 = X, 1 = Y, 2 = Z).
GetCentre()	Returns the position at the centre of the box.
GetCorners(v128)	Fills in the given array with the 8 corner points.
GetEdges(BboxEdge)	Fills in the given array with the 12 edges.
GetFaces(BboxFace)	Fills in the given array with the 6 faces. Each face's vertices will be ordered counter-clockwise when viewed from the outside of the bbox.
GetInvWorldMatrix()	From world space to cube map space.
GetPosition()	Gets the corner of this box.
GetSize()	Gets a vector containing the edge lengths of this box in each of X, Y and Z.
GetWorldMatrix()	From cubemap space to world space.
IntersectsBoundingBox(const Geo::GeoNonAABoundingBox &)	Determines if this box intersects the given box.
Load(Geo::IGeoInputStream &)	Load this object from an IGeoStream.
MapFromLocalUnitCube(const Geo::v128 &)	Map a point in the local unit coordinate system of the volume box to WC.
MapToLocalUnitCube(const Geo::v128 &)	Map a WC point to the local unit coordinate system of the volume box.
Save(Geo::IGeoStream &)	Save this object to an IGeoStream.
SetMatrices()	Initialise a non axis aligned bounding box given an origin, an orthonormal basis of 3 unit vectors and the extent size of the the basis vectors.

Variables

Name	Description
Geo::v128 m_Basis[3]	An orthonormal basis (of unit vectors) describing the orientation of the box.
Geo::Matrix m_LU2WC	Matrix mapping from local to world coordinates.
Geo::v128 m_Pos	Origin (corner) of the axis aligned box.
Geo::v128 m_Size	Size of the bounding volume (in the basis).
Geo::Matrix m_WC2LU	Matrix mapping from world to local coordinates.

bool Geo::GeoNonAABoundingBox::ContainsPoint

public: bool ContainsPoint
(
const Geo::v128 & p
) const

Returns true if the supplied point is inside the box.

float Geo::GeoNonAABoundingBox::DistanceToPoint

public: float DistanceToPoint
(
const Geo::v128 & p
) const

Returns the shortest distance from the supplied point to the box. NOTE: Returns a negative distance for points inside the box.

Geo::GeoNonAABoundingBox::GeoNonAABoundingBox

public: GeoNonAABoundingBox()

Constructors.

Geo::GeoNonAABoundingBox::GeoNonAABoundingBox

public: GeoNonAABoundingBox
(
const Geo::GeoBoundingBox & axisAlignedBox
)

Constructors.

Geo::GeoNonAABoundingBox::GeoNonAABoundingBox

public: GeoNonAABoundingBox
(
const Geo::v128 position,
const Geo::v128 size,
const Geo::v128 basis
)

Constructors.

GeoBoundingBox Geo::GeoNonAABoundingBox::GetAxisAlignedBoundingBox

public: GeoBoundingBox GetAxisAlignedBoundingBox() const

Gets the minimum axis-aligned bounding box that contains this box.

Geo::v128 Geo::GeoNonAABoundingBox::GetBasis

public: Geo::v128 GetBasis
(
s32 axis
) const

Gets the basis vector defining the X, Y or Z principal axis of this box (0 = X, 1 = Y, 2 = Z).

Geo::v128 Geo::GeoNonAABoundingBox::GetCentre

public: Geo::v128 GetCentre() const

Returns the position at the centre of the box.

void Geo::GeoNonAABoundingBox::GetCorners

public: void GetCorners
(
v128 corners
) const

Fills in the given array with the 8 corner points.

void Geo::GeoNonAABoundingBox::GetEdges

public: void GetEdges
(
BboxEdge edges
) const

Fills in the given array with the 12 edges.

void Geo::GeoNonAABoundingBox::GetFaces

public: void GetFaces
(
BboxFace faces
) const

Fills in the given array with the 6 faces. Each face's vertices will be ordered counter-clockwise when viewed from the outside of the bbox.

Geo::Matrix Geo::GeoNonAABoundingBox::GetInvWorldMatrix

public: Geo::Matrix GetInvWorldMatrix() const

From world space to cube map space.

Geo::v128 Geo::GeoNonAABoundingBox::GetPosition

public: Geo::v128 GetPosition() const

Gets the corner of this box.

Geo::v128 Geo::GeoNonAABoundingBox::GetSize

public: Geo::v128 GetSize() const

Gets a vector containing the edge lengths of this box in each of X, Y and Z.

Geo::Matrix Geo::GeoNonAABoundingBox::GetWorldMatrix

public: Geo::Matrix GetWorldMatrix() const

From cubemap space to world space.

bool Geo::GeoNonAABoundingBox::IntersectsBoundingBox

public: bool IntersectsBoundingBox
(
const Geo::GeoNonAABoundingBox & box
) const

Determines if this box intersects the given box.

bool Geo::GeoNonAABoundingBox::Load

public: bool Load
(
Geo::IGeoInputStream & stream
)

Load this object from an IGeoStream.

Geo::v128 Geo::GeoNonAABoundingBox::MapFromLocalUnitCube

public: Geo::v128 MapFromLocalUnitCube
(
const Geo::v128 & p
) const

Map a point in the local unit coordinate system of the volume box to WC.

Geo::v128 Geo::GeoNonAABoundingBox::MapToLocalUnitCube

public: Geo::v128 MapToLocalUnitCube
(
const Geo::v128 & p
) const

Map a WC point to the local unit coordinate system of the volume box.

bool Geo::GeoNonAABoundingBox::Save

public: bool Save
(
Geo::IGeoStream & stream
) const

Save this object to an IGeoStream.

bool Geo::GeoNonAABoundingBox::SetMatrices

public: bool SetMatrices()

Initialise a non axis aligned bounding box given an origin, an orthonormal basis of 3 unit vectors and the extent size of the the basis vectors.

NOTE: The basis should be orthonormal, thus forming a valid box.

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