AxisAlignedBoundingBox

Detailed Description

class AxisAlignedBoundingBox : public RED::Object

Axis aligned bounding box.

Box defined by bounds along the three world axis. Can be defined as volume enclosing shape geometry.

AABBs are not used internally by the engine and are computed on demand.

Public Functions

AxisAlignedBoundingBox()

AxisAlignedBoundingBox constructor. Construct a bounding box with zero size, centered at (0,0,0)

AxisAlignedBoundingBox(const double iFlatCorners[6])

AxisAlignedBoundingBox constructor from corners data.

Parameters:iFlatCorners – min/max corners coordinates in order (minx, miny, minz, maxx, maxy, maxz)
AxisAlignedBoundingBox(const AxisAlignedBoundingBox &iToCopy)

AxisAlignedBoundingBox copy constructor.

Parameters:iToCopy – AxisAlignedBoundingBox to copy.
~AxisAlignedBoundingBox()

AxisAlignedBoundingBox destruction method.

void Transform(const Matrix &iTransformMatrix)

Apply transformation matrix to this AABB.

Parameters:iTransformMatrix – Transformation matrix to apply.
void GetCorners(RED::Vector3 &oMinCorner, RED::Vector3 &oMaxCorner) const

Gets the min and max corners of this AABB.

Parameters:
  • oMinCorner – Min corner.
  • oMaxCorner – Max corner.
bool IsEmpty() const

Indicates if this AABB is empty or not.

Returns:Whether empty or not.
RED_RC EncloseVertices(const void *iVertexArray, int iVertexSize, RED::MESH_FORMAT iVertexFormat, int iVertexCount)

Compute this AABB in order to enclose a set of vertices.

Parameters:
  • iVertexArray – Pointer to the vertex array start.
  • iVertexSize – Size in Bytes of a vertex.
  • iVertexFormat – Format of a vertex.
  • iVertexCount – Number of vertex in the array.
Returns:

RED_OK if success, else error code.

RED_RC EncloseAxisAlignedBoundingBoxes(const RED::Vector<AxisAlignedBoundingBox> &iAabbsToEnclose)

Compute this AABB in order to enclose other AABBs.

Parameters:iAabbsToEnclose – List of AABBs to enclose.
Returns:RED_OK if success, else error code.