The invention relates to an application adapted to run on a client apparatus connectable with a server across a network. The surgical positioning device comprises a securing assembly, a locating arrangement securable to the securing assembly in a selected position of the locating arrangement, and an indicating arrangement securable to the securing assembly in a selected position of the Indicating arrangement. A preferred embodiment of the floodlight comprises a sealed casing having an exterior wall and contains air. without vaporizing the water away. Thus, the heating means is moved downward is moved upward by the moving means to maintain the distance between the heating means and the surface of the deposition material at an initially-set value when the thickness of the deposition material is decreased. In addition, there is a connection between the swing arm and the auxiliary arm, allowing the swing arm to move in the axial direction in relation to the auxiliary arm without a radial distortion of the swing arm.