Stellarium
0.22.2
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An axis-aligned bounding-box class.
#include <GeomMath.hpp>
Public Types | |
enum | Corner { MinMinMin = 0, MaxMinMin, MaxMaxMin, MinMaxMin, MinMinMax, MaxMinMax, MaxMaxMax, MinMaxMax, CORNERCOUNT } |
Identifies a corner of the AABB. | |
enum | Face { Front = 0, Back, Bottom, Top, Left, Right, FACECOUNT } |
Identifies a face of the AABB. | |
Public Member Functions | |
AABBox () | |
Creates an AABBox with minimum vertex set to infinity and maximum vertex set to -infinity. | |
AABBox (const Vec3f &min, const Vec3f &max) | |
Creates an AABBox with the specified minimum and maximum extents. | |
void | expand (const Vec3f &vec) |
Updates the bounding box to include the specified vertex. | |
void | expand (const AABBox &box) |
Updates the bounding box to include the specified other AABB. | |
void | reset () |
Resets minimum to infinity and maximum to -infinity (equivalent to creating a new AABBox with the default constructor) | |
bool | isValid () const |
Returns true when each component of the minimum extents is smaller than the corresponding component of the maximum extents. More... | |
float | getVolume () const |
Returns the volume of the bounding box. | |
Vec3f | getCorner (AABBox::Corner corner) const |
Returns the coordinates of the specified corner of the AABB. | |
Vec4f | getPlane (AABBox::Face p) const |
Return the plane equation in the general form for the specified face of the AABB as Vec4f. | |
Vec3f | positiveVertex (Vec3f &normal) const |
Returns a Vec3f that for each component either: More... | |
Vec3f | negativeVertex (Vec3f &normal) const |
Returns a Vec3f that for each component either: More... | |
Data Fields | |
Vec3f | min |
The minimal extents of the box. | |
Vec3f | max |
The maximal extents of the box. | |
bool AABBox::isValid | ( | ) | const |
This allows to detect empty (or freshly created) boxes with negative volume, or AABBs with only a single vertex (where the minimum and maximum extents are the same).
normal
parameter is less than zero,