
=head1 NAME

Box2D::b2WeldJoint - Glues two bodies together.

=head1 SYNOPSIS

  my $joint = $world->CreateJoint( $joint_def );

=head1 DESCRIPTION

A weld joint essentially glues two bodies together. A weld joint may
distort somewhat because the island constraint solver is approximate.

=head1 METHODS

=head2 GetAnchorA()

Get the anchor point on bodyA in world coordinates. Implements
C<Box2D::b2Joint>.

Returns a C<Box2D::b2Vec2>

=head2 GetAnchorB()

Get the anchor point on bodyB in world coordinates. Implements
C<Box2D::b2Joint>.

Returns a C<Box2D::b2Vec2>

=head2 GetReactionForce( $inv_dt )

Get the reaction force on body2 at the joint anchor in Newtons.
Implements C<Box2D::b2Joint>.

Parameters:

=over 4

=item * C<float32> C<$inv_dt>

=back

Returns a C<Box2D::b2Vec2>

=head2 GetReactionTorque( $inv_dt )

Get the reaction torque on body2 in N*m. Implements C<Box2D::b2Joint>.

Parameters:

=over 4

=item * C<float32> C<$inv_dt>

=back

Returns a C<float32>

=head1 SEE ALSO

=over 4

=item * L<Box2D>

=item * L<Box2D::b2WeldJointDef>

=item * L<Box2D::b2Joint>

=item * L<Box2D::b2World>

=back

=head1 BUGS

See L<Box2D/BUGS>

=head1 AUTHORS

See L<Box2D/AUTHORS>

=head1 COPYRIGHT & LICENSE

See L<Box2D/"COPYRIGHT & LICENSE">

=cut
