A novel magnetic resonance imaging method is described, for forming an image of an object from a plurality of signals sampled in a restricted homogeneity region of a main magnet field of a magnetic resonance imaging apparatus. The head comprises a waveguide and a main magnetic pole having a main pole tip. The apparatus may also include a post-cure unit and a controller. When the user performs a search query in a mapping application or geographic information system, the plurality of candidate waypoints can be obtained and scored according to a scoring formula. An ultraviolet irradiating unit hardens the sealant.