System and method for designating point and area in map

A method of displaying, on a display, a map including an area that includes a point as a basis, the method comprising steps of:

• assigning, to the point, a point-designating code that corresponds to one of regions into which the map divided according to a coordinate system;
• assigning an area-designating code to the area;
• defining an intrinsic code by combining the point-designating code with the area-designating code;
• designating the point in the map by the point-designating code within the intrinsic code;
• designating the area in the map by the area-designating code within the intrinsic code;
• reading a certain map including the designated area from a map database;
• and
• displaying the certain map on the display along with designating the designated area in the displayed map.

An area-designating system of designating, in a map, a point and an area that includes the point as a basis, the system comprising:

• inputting means for inputting an intrinsic code that includes a point-designating code and an area-designating code, wherein the point-designating code that corresponds to one of regions into which the map divided according to a coordinate system is assigned to the point and the area-designating code is assigned to the area;
• storing means for storing relation of one-to-one correspondence between the point-designating code and the point and relation of one-to-one correspondence between the area-designating code and the area;
• and
• designating means for designating, referring to the stored relations of the one-to-one correspondence, the point in the map by the point-designating code within the intrinsic code and the area that includes the point as the basis in the map by the area-designating code within the intrinsic code when the intrinsic code is inputted through the inputting means.

A system of displaying, on a display, a map including an area that includes a point as a basis, the system comprising:

• inputting means for inputting an intrinsic code that includes a point-designating code and an area-designating code, wherein the point-designating code that corresponds to one of regions into which the map divided according to a coordinate system is assigned to the point and the area-designating code is assigned to the area;
• storing means for storing relation of one-to-one correspondence between the point-designating code and the point and relation of one-to-one correspondence between the area-designating code and the area;
• designating means for designating, referring to the stored relations of the one-to-one correspondence, the point in the map by the point-designating code within the intrinsic code and the area that includes the point as the basis in the map by the area-designating code within the intrinsic code when the intrinsic code is inputted through the inputting means;
• and
• displaying means for reading a certain map including the designated area from a map database to display the certain map on the display along with designating the designated area in the displayed map.

A system of guiding a route, comprising:

• inputting means for inputting an intrinsic code that includes a point-designating code and an area-designating code, wherein the point-designating code that corresponds to one of regions into which a map divided according to a coordinate system is assigned to a point and the area-designating code is assigned to an area that includes the point as a basis;
• storing means for storing relation of one-to-one correspondence between the point-designating code and the point and relation of one-to-one correspondence between the area-designating code and the area;
• designating means for designating, referring to the stored relations of the one-to-one correspondence, the point in the map by the point-designating code within the intrinsic code and the area that includes the point as the basis in the map by the area-designating code within the intrinsic code when the intrinsic code is inputted through the inputting means;
• and
• route guiding means for setting a route that reaches a target and bypasses the designated area, and executing route guiding according to the set route.