Character string placement device

Abstract

The present invention comprises: a character spacing function calculator (51) for calculating a character spacing function value which indicates an evaluation regarding character spacing among a plurality of character strings disposed by a character string placement unit (4) from a plurality of candidate points; a street angle function calculator (52) for calculating a street angle function value which indicates an evaluation regarding the angle of a street node string which a character string disposed by the character string placement unit (4) follows; and an evaluation function value calculator (53) for calculating an evaluation function value on the basis of the character spacing function value calculated by the character spacing function calculator (51) and the street angle function value calculated by the street angle function calculator (52).

Description

technical field [0001] The present invention relates to a character string arranging device for arranging character strings on graphics such as maps. Background technique [0002] A conventional map display device has a function of arranging character strings such as road names along road lines (hereinafter referred to as road node columns) from a point where character string arrangement starts (hereinafter referred to as character string arrangement start point) ( For example, refer to Figure 21 ). In this case, if the string configuration start point is inappropriate, the Figure 22 The character strings shown in (a) overlap each other, Figure 22 The decrease in readability caused by the change in the display angle of the characters shown in (b), Figure 22 (c) shows the reduction in readability caused by the denseness of the string. [0003] as a solution Figure 22 The strings shown in (a) overlap each other, and Figure 22 As a method of reducing the readability...

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Problems solved by technology

[0008] However, the method of the above-mentioned non-patent document 1 is to solve Figure 22 (a) are repeated by the strings of each other, and Figure 22 As shown in (b), the readability reduction method caused by the angle change of the road along which the string follows, therefore, there is an unavoidable Figure 22 Problems such as reduced readability caused by dense character strings shown in (c)

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