WorldStone::AABB< T > Struct Template Reference

Axis-Aligned Bounding Box. More...

#include <AABB.h>

Public Member Functions
T	width () const
T	height () const
void	maximize ()
void	initializeForExtension ()
void	extend (const AABB &other)

Static Public Member Functions
static constexpr AABB	getInitializedForExtension ()
	Used to initialize before computing the bounding box of objects. More...

Public Attributes
T	xLower
	x lower bound : excluded
T	yLower
	y lower bound : excluded
T	xUpper
	x upper bound : excluded
T	yUpper
	y upper bound : excluded

Detailed Description

template<typename T>
struct WorldStone::AABB< T >

Axis-Aligned Bounding Box.

Template Parameters

T	The type to use for the positions

Note

The members were named lower/upper in opposition to min/max so that we can use the same code for both integers and float. For integers width = xMax - xMin + 1 as 'max' means included while for floats width = xMax - xMin. (This is basicly the difference between counting pixels and the distance between the pixels) As Upper means the bound is excluded, the data (and user) is responsible for handling this difference, not the class. An alternative would have been to store the width/height instead.

Definition at line 17 of file AABB.h.

Member Function Documentation

template<typename T>

static constexpr AABB WorldStone::AABB< T >::getInitializedForExtension ( )

inlinestatic

Used to initialize before computing the bounding box of objects.

Usage example:

AABB extents = AABB::getInitializedForExtension;
extents.extend(someAABB); // Now equal to someAABB
extents.extend(otherAABB); // Now equal to the bounding box of someAABB and otherAABB

Note

The returned AABB is invalid unless you call extend or override its values.

Definition at line 54 of file AABB.h.

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

• source/decoders/include/AABB.h