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Map display apparatus and display method of character strings on map

A map display device and character string technology, which is applied in the field of character string display, can solve problems such as inconsistent character intervals, overlapping characters, and uneven intervals between objects and strings, and achieve the effect of suppressing uneven intervals and improving recognizability

Active Publication Date: 2015-03-18
ALPINE ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention is made in order to solve such problems, and the purpose is to avoid the overlapping of characters and objects, the overlapping of characters and the problem of uneven intervals between objects and character strings or inconsistent intervals between characters, and can further improve The legibility of character strings displayed along the object's shape line

Method used

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  • Map display apparatus and display method of character strings on map
  • Map display apparatus and display method of character strings on map
  • Map display apparatus and display method of character strings on map

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Embodiment Construction

[0032] Hereinafter, one Embodiment of this invention is described based on drawing. figure 1 It is a block diagram showing an example of the functional configuration of the map display device of the present embodiment. like figure 1 As shown, the map display device of the present embodiment is configured to include a map data storage unit 1, a map display unit 2, and a character string display unit 3 as its functional configuration. Further, the character string display unit 3 includes a line segment setting unit 31 , an angle calculation unit 32 , an offset calculation unit 33 , and a display control unit 34 as its specific functional configuration.

[0033] The above-described functional blocks 2 and 3 can also be configured by any of hardware, DSP (Digital Signal Processor), and software. For example, when constituted by software, each of the above-mentioned functional blocks 2 and 3 is actually constituted by a CPU, RAM, ROM, etc. of a computer, and is realized by the ...

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Abstract

The invention provides a map display apparatus and a display method of character strings on a map, which can improve the visual recognition of character strings displayed along a target. The map display apparatus comprises a line section determining part (31) setting a line segment between a reference configuration position of first characters forming a character string and the reference configuration position of second characters; an angle calculation part (32) calculating the angle of the set line segment relative to the display reference line along the specified display direction of the second characters; and an offset calculating part (33) calculating the character offset direction and offset value relative to the target based on the calculated angle. The offset direction and offset value of each character can be calculated through the angle of the line segment correspondingly set according to the shape line of the target. Therefore, compared with the conditions in which offset directions and offset values are uniformly determined, the apparatus can have proper offset information corresponding to the shape line calculated.

Description

technical field [0001] The present invention relates to a map display device and a method for displaying character strings on a map, and is particularly suitable for a device and method for displaying character strings along shape lines of objects included in a map in accordance with set offset information. Background technique [0002] In a navigation device, a process is generally performed to display characters such as names along a curved line or a straight line representing the shape of a road, a river, or a railway line, or a curved line or a straight line representing the shape of a facility such as a park on a map. String handling. As a technique for displaying character strings along such shape lines, there is known a method of shifting by a predetermined amount based on the position of the start character or the position of objects such as roads, rivers, railway lines, and parks. The method of arranging each character at the position of the offset. [0003] For e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B29/00
CPCG09B29/007
Inventor 西川一郎
Owner ALPINE ELECTRONICS INC
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