Method for registration of n frames 3D point cloud data. This makes it possible to attach to air-vent quickly and via sprocket, arm lever and sliding block can rotate and engage with each other to adjust the angle of carrier and make it easier to firmly clasp heavy objects and provide easy access. The foam is molded to include an internal passage that acts as the air passage. After the image is decomposed, the frequency coefficients are quantized and the data is entropy encoded. Further, multiple undo and redo functions are enabled upon initiating multiple revisions on the temporary flight plan for performing multiple undo and redo operations on the temporary flight plan.