Patent ID: 8046710

Claim:
A weather information display device comprising: a map information acquiring unit for acquiring map information; a weather information acquiring unit for acquiring weather information which is set in connection with a unit of rectangular section on a map; a display unit for displaying various information for a user; and a display control unit for displaying a map on the display unit on the basis of the map information acquired by the map information acquiring unit, and controlling a display mode of sections displayed on the map so that a section corresponding to the weather information acquired by the weather information acquiring unit on the displayed map is distinguishable from other sections, wherein the display control unit is configured to select, from the sections corresponding to the weather information acquired by the weather information acquiring unit, a section on which an icon representing a type of the weather information is superposed and displayed by executing a group of following steps, and display the icon on the selected section; step 1: setting a substantially rectangular area containing sections corresponding to same weather information; step 2: setting a numerical value “1” as a weighting score to a section at each of four corners of the set area when the section concerned is a section corresponding to the same weather information, and setting a numerical value “0” as a weighting score to a section at each of four corners of the set area when the section concerned is not a section corresponding to the same weather information; step 3: successively selecting, from an outer edge side of the set area, sections to which no weighting score is set and which are adjacent to sections to which weighting scores have been already set, setting the maximum value of the weighting scores set in four sections adjacent to each of the selected sections as the weighting score of the selected section, and setting a numerical value “0” as a weighting score to the selected section when no weighting score is set to the four sections adjacent to the selected section; step 4: adding a numerical value “1” as a weighting score to the section selected in the step 3 when the section selected in the step 3 is also a section corresponding to the same weather information; and step 5: returning to the step 3when no weighting score is allocated to all the sections in the set area, and selecting as a specific section a section having the highest weighting score among the sections in the set area when weighting scores are allocated to all the sections in the set area.