Package com.jme.math

Examples of com.jme.math.Quaternion.lookAt()

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        Quaternion rotation = cell.getWorldTransform().getRotation(null);
        Vector3f lookVec = CellPlacementUtils.getLookDirection(rotation, null);

        // translate into a quaternion using lookAt
        Quaternion look = new Quaternion();
        look.lookAt(lookVec.negate(), Vector3f.UNIT_Y);

        // find the origin by translating the look vector
        Vector3f origin = lookVec.mult(distance);
        origin.addLocal(cell.getWorldTransform().getTranslation(null));
        return new CellTransform(look, origin);
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        Vector3f location = new Vector3f(0,0,0);
        Vector3f lookDirection = new Vector3f(0,0,1);

        Quaternion rotation = new Quaternion();
        rotation.lookAt(lookDirection, new Vector3f(0f,1f,0f));
        CellTransform initialLocation = new CellTransform(rotation, location);
        setLocalTransform(initialLocation);
    }

    /**
 
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     */
    public static Quaternion getCellRotation(CellTransform viewTransform) {
        Quaternion viewRotation = viewTransform.getRotation(null);
        Vector3f lookAt = CellPlacementUtils.getLookDirection(viewRotation, null);
        Quaternion rotation = new Quaternion();
        rotation.lookAt(lookAt.negate(), new Vector3f(0, 1, 0));
        return rotation;
    }

    /**
     * Returns the distance away to play a Cell so that its horizontal bounds
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