small3d::BoundingBoxSet Class Reference

Set of bounding boxes for a SceneObject, calculated based on the vertices of a Model. More...

#include <BoundingBoxSet.hpp>

Classes
struct	extremes
	Structure to hold the coordinates of the extremes of each box. More...

Public Member Functions
int	getNumBoxes () const
	Get the number of boxes contained in the set.
	BoundingBoxSet ()
	Default constructor.
	BoundingBoxSet (const std::vector< float > &vertexData, const Vec3 &scale, uint32_t subdivisions)
	Constructor that creates a box set, constructed based on the vertex data that can be found in a Model.
	~BoundingBoxSet ()=default
	Destructor.
bool	contains (const Vec3 &point, const Vec3 &thisOffset, const Mat4 &thisRotation) const
	Check if a point is inside any of the boxes.
bool	containsCorners (const BoundingBoxSet &otherBoxSet, const Vec3 &thisOffset, const Mat4 &thisRotation, const Vec3 &otherOffset, const Mat4 &otherRotation) const
	Check any of the corners of another set of bounding boxes is inside any of the boxes of this set.
std::vector< Model >	getModels ()
	Get the bounding boxes in a set of Models that can be rendered.

Public Attributes
std::vector< extremes >	boxExtremes
	The extreme coordinates (max and min) of each box.
std::vector< std::vector< float > >	vertices
	Vertex coordinates.
std::vector< std::vector< unsigned int > >	facesVertexIndexes
	Faces vertex indexes (rectangles)
std::vector< std::vector< unsigned int > >	facesVertexIndexesTriangulated
	Faces vertex indexes (triangles, for rendering)

Detailed Description

Set of bounding boxes for a SceneObject, calculated based on the vertices of a Model.

Constructor & Destructor Documentation

BoundingBoxSet()

small3d::BoundingBoxSet::BoundingBoxSet	(	const std::vector< float > &	vertexData,
		const Vec3 &	scale,
		uint32_t	subdivisions )

Constructor that creates a box set, constructed based on the vertex data that can be found in a Model.

Parameters

vertexData	The vertex data. Array of floats to be interpreted as an array of 4 component vertex coordinates.
scale	Scale applied to the vertexData before calculating boxes.
subdivisions	How many times to subdivide the initially one created bounding box, getting more accurate collision detection at the expense of performance.

Member Function Documentation

contains()

bool small3d::BoundingBoxSet::contains	(	const Vec3 &	point,
		const Vec3 &	thisOffset,
		const Mat4 &	thisRotation ) const

Check if a point is inside any of the boxes.

Parameters

point	The point (as a vector)
thisOffset	The offset (location) of the box set
thisRotation	The rotation transformation of the box set

Returns

True the point is inside a box, False if not.

containsCorners()

bool small3d::BoundingBoxSet::containsCorners	(	const BoundingBoxSet &	otherBoxSet,
		const Vec3 &	thisOffset,
		const Mat4 &	thisRotation,
		const Vec3 &	otherOffset,
		const Mat4 &	otherRotation ) const

Check any of the corners of another set of bounding boxes is inside any of the boxes of this set.

Parameters

otherBoxSet	The other box set
thisOffset	The offset (location) of this box set
thisRotation	The rotation transformation of this box set
otherOffset	The offset (location) of the other box set
otherRotation	The rotation transformation of the other box set

Returns

True if a corner of the other bounding box set is contained in this set, False otherwise.

getModels()

std::vector< Model > small3d::BoundingBoxSet::getModels

(

)

Get the bounding boxes in a set of Models that can be rendered.

Returns

The set of bounding boxes as Models

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

• BoundingBoxSet.hpp
• BoundingBoxSet.cpp