class_aabb

AABB

Brief Description

Axis-Aligned Bounding Box.

Member Functions

• bool ** encloses ** ( AABB with )
• AABB ** expand ** ( Vector3 to_point )
• real ** get_area ** ( )
• Vector3 ** get_endpoint ** ( int idx )
• Vector3 ** get_longest_axis ** ( )
• int ** get_longest_axis_index ** ( )
• real ** get_longest_axis_size ** ( )
• Vector3 ** get_shortest_axis ** ( )
• int ** get_shortest_axis_index ** ( )
• real ** get_shortest_axis_size ** ( )
• Vector3 ** get_support ** ( Vector3 dir )
• AABB ** grow ** ( real by )
• bool ** has_no_area ** ( )
• bool ** has_no_surface ** ( )
• bool ** has_point ** ( Vector3 point )
• AABB ** intersection ** ( AABB with )
• bool ** intersects ** ( AABB with )
• bool ** intersects_plane ** ( Plane plane )
• AABB ** merge ** ( AABB with )
• void ** AABB ** ( Vector3 pos, Vector3 size )

Member Variables

• Vector3 pos
• Vector3 size
• Vector3 end

Description

AABB provides an 3D Axis-Aligned Bounding Box. It consists of a position and a size, and several utility functions. It is typically used for simple (fast) overlap tests.

Member Function Description

encloses

• bool ** encloses ** ( AABB with ) \ Return true if this aabb completely encloses another one.

expand

• AABB ** expand ** ( Vector3 to_point ) \ Return this aabb expanded to include a given point.

get_area

• real ** get_area ** ( ) \ Get the area inside the aabb

get_endpoint

• Vector3 ** get_endpoint ** ( int idx ) \ Get the position of the 8 endpoints of the aabb in space.

get_longest_axis

• Vector3 ** get_longest_axis ** ( ) \ Return the normalized longest axis of the aabb

get_longest_axis_index

• int ** get_longest_axis_index ** ( ) \ Return the index of the longest axis of the aabb (according to vector3::AXIS* enum).

get_longest_axis_size

• real ** get_longest_axis_size ** ( ) \ Return the scalar length of the longest axis of the aabb.

get_shortest_axis

• Vector3 ** get_shortest_axis ** ( ) \ Return the normalized shortest axis of the aabb

get_shortest_axis_index

• int ** get_shortest_axis_index ** ( ) \ Return the index of the shortest axis of the aabb (according to vector3::AXIS* enum).

get_shortest_axis_size

• real ** get_shortest_axis_size ** ( ) \ Return the scalar length of the shortest axis of the aabb.

get_support

• Vector3 ** get_support ** ( Vector3 dir ) \ Return the support point in a given direction. This is useful for collision detection algorithms.

grow

• AABB ** grow ** ( real by ) \ Return a copy of the AABB grown a given a mount of units towards all the sides.

has_no_area

• bool ** has_no_area ** ( ) \ Return true if the aabb is flat or empty.

has_no_surface

• bool ** has_no_surface ** ( ) \ Return true if the aabb is empty.

has_point

• bool ** has_point ** ( Vector3 point ) \ Return true if the aabb contains a point.

intersection

• AABB ** intersection ** ( AABB with ) \ Return the intersection between two aabbs. An empty AABB (size 0,0,0) is returned on failure.

intersects

• bool ** intersects ** ( AABB with ) \ Return true if the aabb overlaps with another.

intersects_plane

• bool ** intersects_plane ** ( Plane plane ) \ Return true if the AABB is at both sides of a plane.

merge

• AABB ** merge ** ( AABB with ) \ Combine this aabb with another one, a larger one is returned that contains both.

AABB

• void ** AABB ** ( Vector3 pos, Vector3 size ) \ Optional constructor, accepts position and size.