I want to ask that how to rotate body from corner?

movableBeam.getBeamBody().setTransform(movableBeam.getBeamBody().getPosition(), angle);

The above line of code rotate the beam from center that I want rotate from one of the conner. Any member please help me.

EDIT :

            float beamCenterX = movableBeam.getX() + movableBeam.getWidth()
                    / 2f;
            float beamCenterY = movableBeam.getY()
                    + movableBeam.getHeight() / 2f;

            float cornerOffsetX = movableBeam.getX() - beamCenterX;
            float cornerOffsetY = movableBeam.getY() - beamCenterY;

            float bodyAngle = (float) Math.atan2(cornerOffsetY,
                    cornerOffsetX);

            float newAngle = imageAngle + bodyAngle;
            float newCornerOffsetX = (float) Math.cos(Math
                    .toDegrees(newAngle));
            float newCornerOffsetY = (float) Math.sin(Math
                    .toDegrees(newAngle));

            cornerOffsetX = movableBeam.getX() - movableBeam.getWidth()
                    / 2f;
            cornerOffsetY = movableBeam.getY() - movableBeam.getHeight()
                    / 2f;

            Vector2 postion = new Vector2(
                    (newCornerOffsetX - cornerOffsetX + movableBeam.getX())
                            / PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT,
                    (newCornerOffsetY - cornerOffsetY + movableBeam.getY())
                            / PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT);

            movableBeam.getBeamBody().setTransform(postion, newAngle);