Deformed map automatic generation system including automatic extraction of road area from a block map and shape deformation of at least one road area drawn in the map
First Claim
1. A deformed map automatic generation system, comprising:
- road information storing means for storing pieces of road information respectively indicating an area of a road and pieces of target object information respectively indicating a position of a target object;
input data receiving means for receiving an image drawing region as well as route information and deformation information entered by a user;
road information reading means for automatically reading out pieces of display road information and pieces of display target object information, which indicate a display road map corresponding to the image drawing region received by the input data receiving means, from the road information storing means in response to the inputting of the image drawing region, a plurality of display target objects placed at prescribed positions indicated by the display target object information being drawn with a plurality of display road areas in the display road map;
positional relationship determining means for automatically determining a positional relationship between one display target object indicated by one piece of display target object information read by the road information reading means and one display road area placed close to the display target object for each display target object and automatically generating a positional relationship fixing map, in which the display road areas are drawn with the display target objects while fixing the positional relationships of the display road areas with the display target objects, from the display road map;
route map extracting means for automatically extracting a route area around a route indicated by the route information received by the input data receiving means from the image drawing region and automatically extracting a route map corresponding to the route area from the positional relationship fixing map generated by the positional relationship determining means;
deformed map generating means for automatically generating a deformed map from the route map extracted by the route map extracting means with reference to said deformation information received by said input data receiving means, by deforming a shape of one display road area drawn in the route map to cause a substantial areal and configurational change in the deformed display road area before and after deformation, thereby decreasing a volume of data indicating the display road area while maintaining the positional relationships; and
deformed map outputting means for outputting the deformed map generated by the deformed map generating means.
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Accused Products
Abstract
A vector block information indicating a plurality of line segment rows is read out from a block map. Each line segment row divides an area of a block from an area of a road in an image drawing region. Each point at which one end of a line segment row contacts with a boundary line of the image drawing region is set as a boundary point. In this case, a road crossing the boundary line of the image drawing region is indicated by a pair of line segment rows having a pair of boundary points close to each other. To determine an area of the road, the pair of boundary points are connected with each other through a connecting line segment. Therefore, a road area in the image drawing region can be automatically extracted from the block map. In addition, an end area of the road placed at the boundary line of the image drawing region is reshaped to have two right-angle corners at the end area of the road, a length of a road area at the boundary line of the image drawing region is shortened, an area of a narrow road is deleted from the road area, an area of a narrow road is widened, or a plurality of blocks placed in an administrative district is unified by deleting areas of a plurality of roads dividing the blocks.
204 Citations
16 Claims
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1. A deformed map automatic generation system, comprising:
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road information storing means for storing pieces of road information respectively indicating an area of a road and pieces of target object information respectively indicating a position of a target object;
input data receiving means for receiving an image drawing region as well as route information and deformation information entered by a user;
road information reading means for automatically reading out pieces of display road information and pieces of display target object information, which indicate a display road map corresponding to the image drawing region received by the input data receiving means, from the road information storing means in response to the inputting of the image drawing region, a plurality of display target objects placed at prescribed positions indicated by the display target object information being drawn with a plurality of display road areas in the display road map;
positional relationship determining means for automatically determining a positional relationship between one display target object indicated by one piece of display target object information read by the road information reading means and one display road area placed close to the display target object for each display target object and automatically generating a positional relationship fixing map, in which the display road areas are drawn with the display target objects while fixing the positional relationships of the display road areas with the display target objects, from the display road map;
route map extracting means for automatically extracting a route area around a route indicated by the route information received by the input data receiving means from the image drawing region and automatically extracting a route map corresponding to the route area from the positional relationship fixing map generated by the positional relationship determining means;
deformed map generating means for automatically generating a deformed map from the route map extracted by the route map extracting means with reference to said deformation information received by said input data receiving means, by deforming a shape of one display road area drawn in the route map to cause a substantial areal and configurational change in the deformed display road area before and after deformation, thereby decreasing a volume of data indicating the display road area while maintaining the positional relationships; and
deformed map outputting means for outputting the deformed map generated by the deformed map generating means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
the deformed map generating means comprises: route map generating means for automatically extracting a route area around a route indicated by the route information from the image drawing region of the positional relationship fixing map and automatically generating a route map corresponding to the route area as the deformed map.
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3. A deformed map automatic generation system according to claim 1 in which the deformed map generating means comprises target object related road area lengthening means for automatically selecting two particular target objects, which are respectively related to a particular road area selected from the display road areas and overlap each other, from among the display target objects drawn in the positional relationship fixing map and automatically lengthening the particular road area not to overlap the particular target objects with each other.
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4. A deformed map automatic generation system according to claim 1 in which the deformed map generating means comprises target object no-related road area simplifying means for automatically selecting a particular road area not related to any display target object from among the display target objects drawn in the positional relationship fixing map and automatically simplifying the display of the particular road area by thinning out display data of the particular road area.
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5. A deformed map automatic generation system according to claim 1 in which the input data receiving means additionally receives deforming angle information, and
the deformed map generating means comprises: crossing angle resetting means for automatically selecting two particular road areas crossing each other from among the road areas drawn in the positional relationship fixing map and automatically resetting a crossing angle between the particular road areas to a deforming angle which is indicated by the deforming angle information received by the input data receiving means.
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6. A deformed map automatic generation system according to claim 1 in which the input data receiving means additionally receives mesh information, and
the deformed map generating means comprises: line segment end moving means for automatically superimposing a mesh having a plurality of mesh intersections on the positional relationship fixing map according to the mesh information received by the input data receiving means and automatically moving an end of a line segment written in the positional relationship fixing map to a particular mesh intersection placed closest to the end of the line segment for each of a plurality of line segments.
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7. A deformed map automatic generation system according to claim 1 in which the input data receiving means additionally receives mesh information, a plurality of line segment rows respectively composed of a series of line segments are automatically drawn in the positional relationship fixing map generated by the positional relationship determining means to determine a shape of each display road area surrounded by one line segment row, and the deformed map generating means comprises:
a road shape deforming means for automatically superimposing a mesh having a plurality of lateral lines and a plurality of longitudinal lines on the positional relationship fixing map according to the mesh information received by the input data receiving means, automatically detecting a plurality of crossing points, respectively denoting a point at which one line segment of one line segment row crosses one lateral or longitudinal line of the mesh, as a group of crossing points for each line segment row and automatically replacing one line segment row passing though one group of crossing points with an approximate line segment row composed of a plurality of straight approximate line segments respectively connecting one pair of crossing points adjacent to each other, for each line segment row drawn in the positional relationship fixing map.
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8. A deformed map automatic generation system according to claim 1 in which the input data receiving means additionally receives a specific point;
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the deformed map generating means comprises;
map displaying area setting means for automatically specifying specific display target objects placed around the specified point received by the input data receiving means in the positional relationship fixing map on condition that the number of specific display target objects is a prescribed value, automatically setting a displaying area around the specific point on condition that the specific display target objects are arranged in the displaying area and automatically generating a deformed map corresponding to the displaying area.
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9. A deformed map automatic generation system according to claim 1 in which
the deformed map generating means comprises: a road area removing means for automatically selecting a particular road area, of which a particular closed area has a size smaller than a predetermined size, from among the display road areas respectively having a closed area in the positional relationship fixing map and removing the particular road area from the positional relationship fixing map.
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10. A deformed map automatic generation system according to claim 1 in which
the deformed map generating means comprises: curved road straightening means for automatically selecting a particular road area indicating a road curved at an angle smaller than a predetermined angle from among the display road areas of the positional relationship fixing map and deforming the particular road area to straighten the curved road.
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11. A deformed map automatic generation system according to claim 1 in which
the deformed map generating means comprises: long road shortening means for automatically selecting a particular road area indicating a straight road longer than a prescribed length from among the display road areas of the positional relationship fixing map and automatically deforming the particular road area to shorten the straight road.
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12. A deformed map automatic generation system according to claim 1 in which
the deformed map generating means comprises: target object deleting means for automatically selecting a particular target object overlapping with one of the display target objects from among the display target objects of the positional relationship fixing map and deleting the particular target object from the positional relationship fixing map.
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13. A deformed map automatic generation system according to claim 1 in which the deformed map generating means comprises target object related road area lengthening means for automatically selecting from among the display target objects in the positional relationship fixing map two particular target objects, which overlap each other and which are respectively related to a particular road area, the particular road area selected from the display road areas and being drawn in only a sub-portion of the positional relationship fixing map,
said target object related road area lengthening means operating for automatically enlarging only the portion of the positional relationship fixing map in which the particular road area is drawn, thereby deforming another sub-portion of the positional relationship fixing map and avoiding overlap of the particular target objects with each other.
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14. A deformed map generation system, comprising:
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road information storing means for storing pieces of road information respectively indicating an area of a road and pieces of target object information respectively indicating a position of a target object;
input data receiving means for receiving an image drawing region and deformed map generating information entered by a user;
road information reading means for reading out pieces of display road information and pieces of display target object information, which indicate a display road map corresponding to said image drawing region, from the road information storing means in response to the inputting of said image drawing region, a plurality of display target objects placed at prescribed positions indicated by the display target object information being drawn with a plurality of display road areas in the display road map;
positional relationship determining means for determining a positional relationship between at least one of said display target objects and said display road areas placed close to said one of the display target objects and generating a positional relationship fixing map from the display road map, in which the display road areas are drawn with the said at least one of the display target objects while fixing the positional relationships of the display road areas with said at least one of the display target objects;
deformed map generating means for generating a deformed map from said positional relationship fixing map by deforming a shape of at least one of said display road areas to cause a substantial areal and configurational change in the deformed display road area before and after deformation while maintaining the positional relationships, and deformed map outputting means for outputting the deformed map generated by the deformed map generating means. - View Dependent Claims (15)
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16. A deformed map automatic generation system, comprising:
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road information storing means for storing pieces of road information respectively indicating an area of a road and pieces of target object information respectively indicating a position of a target object;
said road information storing means storing road areas as display objects;
input data receiving means for receiving an image drawing region as well as route information and deformation information entered by a user;
road information reading means for automatically reading out pieces of display road information and pieces of display target object information, which indicate a display road map corresponding to the image drawing region received by the input data receiving means, from the road information storing means in response to the inputting of the image drawing region, a plurality of display target objects placed at prescribed positions indicated by the display target object information being drawn with a plurality of display road areas in the display road map;
positional relationship determining means for automatically determining a positional relationship between one display target object indicated by one piece of display target object information read by the road information reading means and one display road area placed close to the display target object for each display target object and automatically generating a positional relationship fixing map, in which the display road areas are drawn with the display target objects while fixing the positional relationships of the display road areas with the display target objects, from the display road map;
route map extracting means for automatically extracting a route area around a route indicated by the route information received by the input data receiving means from the image drawing region and automatically extracting a route map corresponding to the route area from the positional relationship fixing map generated by the positional relationship determining means;
deformed map generating means for automatically generating a deformed map from the route map extracted by the route map extracting means with reference to said deformation information received by said input data receiving means, by deforming a shape of one display road area drawn in the route map to cause a substantial areal and configurational change in the deformed display road area before and after deformation, said deformed map generating means modifying a configuration of said one display road area by changing an angular relation between peripheral segments thereof, thereby decreasing a volume of data indicating the display road area while maintaining the positional relationships; and
deformed map outputting means for outputting the deformed map generated by the deformed map generating means.
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Specification