AABB

consists of a position, a size, and several utility functions. It is typically used for fast overlap tests.

It uses floating-point coordinates. The 2D counterpart to AABB is .

Note: Unlike Rect2, AABB does not have a variant that uses integer coordinates.

Tutorials

• Vector math

Methods

• Vector3 end

Ending corner. This is calculated as position + size. Setting this value will change the size.

• position

Beginning corner. Typically has values lower than end.

Size from to end. Typically all components are positive.

If the size is negative, you can use to fix it.

Method Descriptions

• AABB AABB ( position, Vector3 size )

Constructs an AABB from a position and size.

• abs ( )

Returns an AABB with equivalent position and size, modified so that the most-negative corner is the origin and the size is positive.

• bool encloses ( with )

• AABB expand ( to_point )

Returns this AABB expanded to include a given point.

• float get_area ( )

Returns the volume of the AABB.

• get_endpoint ( int idx )

Gets the position of the 8 endpoints of the in space.

• get_longest_axis ( )

Returns the normalized longest axis of the AABB.

• int get_longest_axis_index ( )

Returns the index of the longest axis of the AABB (according to ‘s AXIS_* constants).

• float get_longest_axis_size ( )

Returns the scalar length of the longest axis of the AABB.

• get_shortest_axis ( )

Returns the normalized shortest axis of the AABB.

• int get_shortest_axis_index ( )

Returns the index of the shortest axis of the AABB (according to ::AXIS* enum).

Returns the scalar length of the shortest axis of the AABB.

• Vector3 get_support ( dir )

• AABB grow ( by )

Returns a copy of the AABB grown a given amount of units towards all the sides.

• bool has_no_area ( )

Returns true if the AABB is flat or empty.

• has_no_surface ( )

Returns true if the AABB is empty.

• bool has_point ( point )

Returns true if the AABB contains a point.

• AABB intersection ( with )

Returns the intersection between two . An empty AABB (size 0,0,0) is returned on failure.

• bool intersects ( with )

Returns true if the AABB overlaps with another.

• bool intersects_plane ( plane )

Returns true if the AABB is on both sides of a plane.

• bool intersects_segment ( from, Vector3 to )

Returns true if the AABB intersects the line segment between from and to.

• is_equal_approx ( AABB aabb )

Returns true if this AABB and aabb are approximately equal, by calling on each component.

• AABB merge ( with )