Map display device and method for displaying map
First Claim
Patent Images
1. A map display device comprising:
- map data storing means that stores photographic data on photographs taken from the sky and map data including an information item that provides road information;
display means that displays a photographic map based on the photographic data and the map data;
scale changing means that changes a reduction scale of the photographic map; and
display control means that controls display condition of the information item displayed on the photographic map according to the reduction scale of the photographic mapwherein the display control means controls the display condition of the information item such that the road information is not displayed at a reduction scale larger than a predetermined scale.
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Abstract
In a map display device, a photographic map can be displayed in different modes. When it is determined that the photographic map is displayed in a combined map mode, a road line is displayed on a road of the photographic map at a display scale equal to or smaller than 100 m scales. At a scale larger than 100 m scales, information items that provide road information other than the road line are displayed on the photographic map. Since the road line is not displayed on the photographic map, the information items other than the road line are easily recognized.
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Citations
12 Claims
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1. A map display device comprising:
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map data storing means that stores photographic data on photographs taken from the sky and map data including an information item that provides road information; display means that displays a photographic map based on the photographic data and the map data; scale changing means that changes a reduction scale of the photographic map; and display control means that controls display condition of the information item displayed on the photographic map according to the reduction scale of the photographic map wherein the display control means controls the display condition of the information item such that the road information is not displayed at a reduction scale larger than a predetermined scale. - View Dependent Claims (4, 5, 11)
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2. A map display device, comprising:
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map data storing means that stores photographic data on photographs taken from the sky and map data including an information item that provides road information; display means that displays a photographic map based on the photographic data and the map data; scale changing means that changes a reduction scale of the photographic map; and display control means that controls display condition of the information item displayed on the photographic map according to the reduction scale of the photographic map, wherein the display control means controls display condition of the information item such that the information item is toned down when the reduction scale of the photographic map is changed to be smaller than a predetermined scale from a reduction scale larger than the predetermined scale. - View Dependent Claims (3, 12)
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6. A method for displaying a map, comprising:
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displaying a photographic map and the information item based on photographic data on photographs taken from the sky and map data including an information item that provides road information; and controlling display condition of the information item displayed on the photographic map according to a reduction scale of the photographic map; wherein the controlling step deletes the information item when the reduction scale of the photographic map is changed larger than a predetermined scale. - View Dependent Claims (9, 10)
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7. A method for displaying a map, comprising:
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displaying a photographic map and the information item based on photographic data on photographs taken from the sky and map data including an information item that provides road information; and controlling display condition of the information item displayed on the photographic map according to a reduction scale of the photographic map; wherein the controlling step tones down the information item when the reduction scale of the photographic map is changed to be smaller than a predetermined scale from a reduction scale larger than the predetermined scale. - View Dependent Claims (8)
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Specification