CN110800040A

CN110800040A - Drawing device and drawing method

Info

Publication number: CN110800040A
Application number: CN201780092676.XA
Authority: CN
Inventors: 秋山卓见; 中岛康祐
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2017-07-05
Filing date: 2017-07-05
Publication date: 2020-02-14
Anticipated expiration: 2037-07-05
Also published as: JPWO2019008702A1; DE112017007633T5; WO2019008702A1; JP6628942B2; CN110800040B

Abstract

When one direction of drawing elements is contained in one direction in a drawing area allowing drawing in all drawing elements of 1 or more characters or 1 or more symbols that can be drawn, a reduction ratio setting unit (6) sets a reduction ratio R in one direction of all drawing elements included in a character string or a symbol string that is a drawing target as a 1 st reduction ratio R₁When one direction of at least some of the 1 or more drawing elements that can be drawn is not contained in one direction in the drawing area, the reduction ratio setting unit (6) sets the reduction ratio R in one direction to a degree of reduction that is greater than the 1 st reduction ratio R for the drawing element in one direction contained in the drawing area among the 1 or more drawing elements included in the character string₁Large 2 nd reduction ratio R₂For the drawing of one direction which is not contained in the drawing areaThe reduction rate R in one direction is set to be smaller than the 2 nd reduction rate R₂Large 3 rd reduction ratio R₃。

Description

Drawing device and drawing method

Technical Field

The present invention relates to a drawing device and a drawing method for setting a reduction ratio of a drawing element that is a character or a symbol and drawing the drawing element at the set reduction ratio.

Background

For example, patent document 1 below discloses a drawing device as follows: when drawing a character string in which a plurality of characters are arranged, the character string is drawn after narrowing only the width direction of each character so that the width of each character is equal to or less than a predetermined character width.

The drawing device is a device applied to characters of a uniform width font having the same size as the character width of all characters.

When a character string to be drawn includes a half-character, the drawing device sets a reduction rate in the width direction for the half-character as in the case of a full-character, and the half-character becomes a character excessively long in the vertical direction and is difficult to read.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 3-12697

Disclosure of Invention

Problems to be solved by the invention

Since the conventional drawing device is configured as described above, it is possible to suppress an excessive reduction in the width direction of the half-character. However, in the case of a proportional font in which the size in the width direction of the characters included in the character string is different for each character, if the characters included in the character string are full-size characters, the characters having a small size in the width direction and the characters having a large size in the width direction are reduced in the width direction at the same reduction rate. Therefore, there are problems as follows: characters having a narrow width dimension, such as the letter "I", become excessively vertically long characters, resulting in reduced readability.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a drawing device and a drawing method, in which: characters or symbols, which are elements of the drawing in the scaled font, can be drawn in a reduced size without causing a reduction in readability.

Means for solving the problems

The drawing device of the present invention is provided with a reduction ratio setting unit that sets, when one direction of drawing elements is contained in one direction in a drawing area allowing drawing in all of drawing elements that are 1 or more characters capable of being drawn or 1 or more symbols capable of being drawn, a reduction ratio in one direction of all the drawing elements contained in a character string that is a drawing target or a symbol string that is a drawing target to a 1 st reduction ratio, and sets, when one direction of at least some of the 1 or more drawing elements that are capable of being drawn is not contained in one direction in the drawing area, a reduction ratio in one direction to a 2 nd reduction ratio that is larger in reduction degree than the 1 st reduction ratio for a drawing element that is contained in one direction in the drawing area in one direction of 1 or more drawing elements contained in the character string or the symbol string, for drawing elements in one direction which are not accommodated in the drawing area in one direction, the reduction ratio in the one direction is set to a 3 rd reduction ratio which is larger in reduction degree than a 2 nd reduction ratio, and the drawing unit draws the drawing elements included in the character string or the symbol string at the reduction ratios set by the reduction ratio setting unit.

Effects of the invention

According to the present invention, in a case where one direction of all drawing elements is contained in one direction in a drawing area allowing drawing in all of drawing elements which are 1 or more characters capable of being drawn or 1 or more symbols capable of being drawn, a reduction ratio setting section sets a reduction ratio in one direction of all drawing elements contained in a character string or a symbol string as a drawing target to a 1 st reduction ratio, and in a case where one direction of at least some of the 1 or more drawing elements capable of being drawn is not contained in one direction in the drawing area, a reduction ratio setting section sets a reduction ratio in one direction to a 2 nd reduction ratio which is larger in reduction degree than the 1 st reduction ratio with respect to one direction of the 1 or more drawing elements contained in the character string or the symbol string in which one direction is contained in the drawing area, for the drawing elements in one direction which are not contained in the drawing area, the reduction ratio in one direction is set to a 3 rd reduction ratio which is larger than the 2 nd reduction ratio. Therefore, the following effects are obtained: characters or symbols, which are elements of the drawing in the scaled font, can be drawn in a reduced size without causing a reduction in readability.

Drawings

Fig. 1 is a configuration diagram showing a drawing device according to embodiment 1 of the present invention.

Fig. 2 is a hardware configuration diagram showing a drawing device according to embodiment 1 of the present invention.

Fig. 3 is a hardware configuration diagram of a computer in a case where the drawing device is implemented by software, firmware, or the like.

Fig. 4 is a flowchart showing a drawing method, which is a processing procedure in the case where the drawing device is realized by software, firmware, or the like.

Fig. 5 is an explanatory diagram showing an example of characters included in a character string to be drawn stored in the drawing element storage unit 1.

Fig. 6 is an explanatory diagram showing a drawing result in a case where the characters "I", "C", and "W" shown in fig. 5 are drawn without narrowing the width direction.

Fig. 7 is an explanatory diagram showing a drawing result in the case where the reduction rate R is set by the 1 st method.

Fig. 8 is an explanatory diagram showing a drawing result in the case where the reduction rate R is set by the 2 nd method.

Fig. 9 is an explanatory diagram showing a drawing result in the case where the reduction rate R is set by the method of embodiment 1.

Fig. 10 is an explanatory diagram showing a result of drawing without narrowing all character strings handled as 1 character.

Fig. 11 is an explanatory diagram showing a result of drawing by narrowing down a character string handled as 1 character by the 1 st method.

Fig. 12 is an explanatory diagram showing a result of drawing by narrowing down a character string handled as 1 character by the 2 nd method.

Fig. 13 is an explanatory diagram showing a result of narrowing and drawing a character string handled as 1 character by the 3 rd method in embodiment 1.

Fig. 14 is an explanatory diagram showing the result of drawing without narrowing the letters "a" to "Z" and the numbers "0" to "9".

Fig. 15 is an explanatory diagram showing the result of drawing by narrowing the letters "a" to "Z" and the numbers "0" to "9" by the method 1.

Fig. 16 is an explanatory diagram showing the result of drawing by narrowing the letters "a" to "Z" and the numbers "0" to "9" by the method 2.

Fig. 17 is an explanatory diagram showing the result of drawing by reducing the letters "a" to "Z" and the numbers "0" to "9" by the method 3 in embodiment 1.

Fig. 18 is an explanatory diagram showing the result of drawing without narrowing the letters "a" to "Z" and the numbers "0" to "9".

Fig. 19 is an explanatory diagram showing the result of drawing by narrowing the letters "a" to "Z" and the numbers "0" to "9" by the method 1.

Fig. 20 is an explanatory diagram showing the result of drawing by narrowing the letters "a" to "Z" and the numbers "0" to "9" by the method 2.

Fig. 21 is an explanatory diagram showing the result of drawing by reducing the letters "a" to "Z" and the numbers "0" to "9" by the method 3 in embodiment 1.

Detailed Description

Hereinafter, embodiments for carrying out the present invention will be described in more detail with reference to the accompanying drawings.

Embodiment mode 1

Fig. 1 is a configuration diagram showing a drawing device according to embodiment 1 of the present invention. Fig. 2 is a hardware configuration diagram showing a drawing device according to embodiment 1 of the present invention.

In embodiment 1, an example in which the drawing elements are characters in a proportional font is described, but the drawing elements may be symbols in a proportional font.

The drawing elements may be characters or symbols of a font having an equal width.

In fig. 1 and 2, the drawing element storage unit 1 is realized by, for example, a drawing element storage circuit 21 shown in fig. 2.

The drawing element storage unit 1 stores 1 or more characters that can be drawn as 1 or more drawing elements.

In embodiment 1, an example in which the drawing element storage unit 1 stores 1 or more characters that can be drawn as 1 or more drawing elements is described, but 1 or more symbols that can be drawn may be stored as 1 or more drawing elements.

In embodiment 1, an example in which letters "a" to "Z" are stored as 1 or more characters that can be drawn will be described.

The character width storage section 2 is realized by, for example, a character width storage circuit 22 shown in fig. 2.

The character width storage unit 2 stores a dimension Wc in the width direction (one direction) of each character stored in the drawing element storage unit 1.

However, the width dimension Wc is expressed by the ratio of the width of each character stored in the drawing element storage unit 1.

In embodiment 1, an example is assumed in which a character string to be drawn is drawn in horizontal writing, and therefore, the character width storage unit 2 stores the width dimension Wc of each character as one direction of each character, but when a character string to be drawn is drawn in vertical writing, the character width storage unit 2 stores the height dimension Wc of each character as one direction of each character.

In embodiment 1, an example is shown in which the character width storage unit 2 functions only as a memory and stores the width-directional dimension Wc of each character, but the character width storage unit 2 may have a function of detecting the width-directional dimension Wc of each character stored in the drawing element storage unit 1.

The maximum size memory section 3 is realized by, for example, a maximum size memory circuit 23 shown in fig. 2.

The maximum size storage unit 3 stores the maximum size W of the sizes Wc in the width direction of the respective characters stored in the character width storage unit 2_max。

In embodiment 1, the letters "a" to "Z" are stored in the drawing element storage unit 1. Among the letters "a" to "Z", the character having the largest width dimension Wc is the character "W", and therefore, the width dimension Wc of the character "W" is the largest width dimension W_maxTo the maximum size storage section 3.

In embodiment 1, an example is assumed in which a character string to be drawn is drawn in a horizontal writing manner, and therefore, the maximum size storage unit 3 stores the maximum size in the width direction, but when a character string to be drawn is drawn in a vertical writing manner, the maximum size storage unit 3 stores the maximum size in the height direction.

In embodiment 1, the maximum size storage unit 3 functions only as a memory and stores the maximum size W_maxIn the example of (3), the maximum size storage unit may be provided with a size W that is determined to be the maximum size by comparing the width directions of the characters stored in the character width storage unit 2_maxThe function of (c).

The character string storage unit 4 is realized by, for example, a character string storage circuit 24 shown in fig. 2.

The character string storage unit 4 stores a character string to be drawn.

In embodiment 1, for convenience of explanation, characters included in a character string to be drawn are referred to as "I", "C", and "W".

In embodiment 1, an example in which the character string storage unit 4 stores a character string to be drawn is described, but a symbol string to be drawn may be stored.

The area size storage section 5 is realized by, for example, an area size storage circuit 25 shown in fig. 2.

The area size storage unit 5 stores a dimension G in the width direction (one direction) in a drawing area where 1 character is allowed to be drawn_SIZE。

The reduction ratio setting unit 6 is realized by, for example, a reduction ratio setting circuit 26 shown in fig. 2.

When the width direction of a character is contained in the width direction of the drawing area among all the characters which can be drawn and stored in the drawing element storage unit 1, the reduction ratio setting unit 6 sets the reduction ratio R in the width direction among all the characters included in the character string stored in the character string storage unit 4 to the 1 st reduction ratio R₁And (4) processing.

That is, the maximum size W stored in the maximum size storage unit 3_maxIs the dimension G in the width direction in the drawing area stored in the area dimension storage unit 5_SIZEIn the following case, the reduction ratio setting unit 6 sets the reduction ratio R in the width direction of all characters included in the character string stored in the character string storage unit 4 to the 1 st reduction ratio R₁And (4) processing.

When the width direction of at least a part of the 1 or more characters which can be drawn and stored in the drawing element storage unit 1 is not in the width direction of the drawing area, the reduction ratio setting unit 6 sets the reduction ratio R in the width direction to a smaller degree than the 1 st reduction ratio R, among the 1 or more characters included in the character string, in the width direction of the drawing area₁Large 2 nd reduction ratio R₂And (4) processing.

That is, the maximum size W stored in the maximum size storage unit 3_maxLarger than the dimension G in the width direction in the drawing area stored in the area size storage unit 5_SIZEIn the case of (1), the reduction ratio setting unit 6 sets the width dimension Wc of 1 or more characters included in the character string to the width dimension G of the drawing area_SIZEThe following characters are executed to set the reduction rate R in the width direction to be smaller than the 1 st reduction rate R₁Large 2 nd reduction ratio R₂And (4) processing.

When the width direction of at least a part of the 1 or more characters which can be drawn and which are stored in the drawing element storage unit 1 is not stored in the width direction of the drawing area, the reduction ratio setting unit 6 sets the reduction ratio R in the width direction to a smaller degree than the 2 nd reduction ratio R, for the character which is not stored in the width direction of the drawing area in the width direction of the 1 or more characters included in the character string₂Large 3 rd reduction ratio R₃And (4) processing.

That is, the maximum size W stored in the maximum size storage unit 3_maxLarger than the dimension G in the width direction in the drawing area stored in the area size storage unit 5_SIZEIn the case of (1), the reduction ratio setting unit 6 sets the width dimension Wc of the 1 or more characters included in the character string to be larger than the width dimension G of the drawing area_SIZEThe character (2) is reduced by setting the reduction ratio R in the width direction to be smaller than the reduction ratio R of the 2 nd₂Large 3 rd reduction ratio R₃And (4) processing.

In embodiment 1, the reduction ratio in the width direction of a character is usually 1.0 or more, and for example, when the reduction ratio is 2.0, this means that the width direction of the character is reduced to a size of 50%. In the case of reducing the width direction of a character, the character may be defined by an enlargement ratio, but in embodiment 1, the character is uniformly referred to as a reduction ratio.

The drawing unit 7 is realized by, for example, a drawing circuit 27 shown in fig. 2, and includes a character reduction unit 8 and a character drawing unit 9.

The drawing unit 7 performs a process of drawing each character included in the character string stored in the character string storage unit 4 or each symbol included in the symbol string stored in the character string storage unit 4 at the reduction rate R set by the reduction rate setting unit 6.

The drawing unit 7 may draw characters in a form of displaying them on a display or in a form of printing them on a sheet.

The character reduction unit 8 performs a process of reducing the width direction of each character included in the character string stored in the character string storage unit 4 or each symbol included in the symbol string stored in the character string storage unit 4 at the reduction rate R set by the reduction rate setting unit 6.

The character drawing unit 9 performs a process of drawing each character or each symbol reduced in width by the character reduction unit 8.

In fig. 1, it is assumed that the drawing element storage unit 1, the character width storage unit 2, the maximum size storage unit 3, the character string storage unit 4, the area size storage unit 5, the reduction ratio setting unit 6, and the drawing unit 7, which are components of the drawing device, are each realized by dedicated hardware shown in fig. 2. That is, it is assumed that the drawing element storage circuit 21, the character width storage circuit 22, the maximum size storage circuit 23, the character string storage circuit 24, the area size storage circuit 25, the reduction ratio setting circuit 26, and the drawing circuit 27 realize this.

Here, the drawing element Memory circuit 21, the character width Memory circuit 22, the maximum size Memory circuit 23, the character string Memory circuit 24, and the area size Memory circuit 25 are, for example, a nonvolatile or volatile semiconductor Memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash Memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile disk), or the like.

The reduction rate setting Circuit 26 and the drawing Circuit 27 are, for example, a single Circuit, a composite Circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.

However, the components of the drawing device are not limited to being implemented by dedicated hardware, and the drawing device may be implemented by software, firmware, or a combination of software and firmware.

The software or firmware is stored as a program in the memory of the computer. The computer represents hardware for executing a program, and examples thereof include a CPU (Central Processing Unit), a Central Processing Unit, a Processing device, an arithmetic device, a microprocessor, a microcomputer, a Processor, and a DSP (Digital Signal Processor).

When the drawing device is implemented by software, firmware, or the like, the drawing element storage unit 1, the character width storage unit 2, the maximum size storage unit 3, the character string storage unit 4, and the area size storage unit 5 may be configured in the memory 31 of the computer, a program for causing the computer to execute the processing procedure of the reduction ratio setting unit 6 and the drawing unit 7 may be stored in the memory 31, and the program stored in the memory 31 may be executed by the processor 32 of the computer.

Fig. 2 shows an example in which the components of the drawing device are implemented by dedicated hardware, and fig. 3 shows an example in which the drawing device is implemented by software, firmware, or the like, but some of the components of the drawing device may be implemented by dedicated hardware, and the remaining components may be implemented by software, firmware, or the like.

Next, the operation will be described.

In the example of fig. 5, the characters included in the character string are "I", "C", and "W", and the width dimension Wc of each character is different.

In the characters "I", "C", and "W", the width dimension Wc of the character "I" is smallest, the width dimension Wc of the character "C" is the second smallest, and the width dimension Wc of the character "W" is the largest.

In the example of fig. 6, the width-direction dimension Wc of the character "I" is smaller than the width-direction dimension G in the drawing region_SIZEHowever, the width dimension Wc of the character "C" and the width dimension Wc of the character "W" are larger than the width dimension G of the drawing region_SIZE。

As a method of setting the reduction rate R of the characters "I", "C", and "W" so that the width direction of the characters "I", "C", and "W" shown in fig. 5 is contained in the width direction of the drawing area, the following 1 st method and 2 nd method are conceivable.

[ method 1 ]

The 1 st method is that the width direction dimension Wc of the character is larger than the width direction dimension G in the drawing area_SIZESo that the width dimension Wc and the width dimension G in the drawing area_SIZEThe method of rendering is performed in a consistent manner.

The dimension Wc in the width direction of the character is the dimension G in the width direction in the drawing region_SIZEIn the case of the following character "I", since the width direction is not reduced, the reduction rate R in the width direction in the character "I" is set to 1.0 as shown in the following formula (1).

G_SIZE≧Wc→R＝1.0 (1)

The dimension Wc in the width direction of the character is larger than the dimension G in the width direction of the drawing region_SIZEIn the case of the characters "C" and "W", the width dimension Wc and the width dimension G in the drawing area are set to be equal to each other_SIZEAccordingly, as shown in the following expression (2), the reduction rate R in the width direction of the character "C" and the character "W" is set.

G_SIZE<Wc→R＝Wc/G_SIZE(2)

In 1 stIn the method, the width dimension Wc of the character is the width dimension G of the drawing area_SIZESince the width direction of the following character "I" is not reduced, the legibility of the character "I" is not impaired as shown in fig. 7.

On the other hand, the width-directional dimension Wc of the character is the width-directional dimension G in the drawing region_SIZEHereinafter, the character "I" and the width dimension Wc of the character are larger than the width dimension G in the drawing area_SIZEThe reduction rate R of the character "W" of (a) is greatly different. Therefore, as shown in fig. 7, between the character "I" depicted and the character "W" depicted, for example, the line width or the like is greatly different, and the balance between the characters is broken.

[ method 2 ]

The 2 nd method is a method of applying the reduction rate R in the width direction in which the character "W" having the largest width dimension Wc among the letters "a" to "Z" is stored in the drawing area to other characters.

In the 2 nd method, if the size Wc of the character "W" is W_max，W_maxTo delineate the dimension G in the width direction in the region_SIZEIn the following, in order not to reduce each character included in the character string, the reduction rate R of the characters "I", "C", and "W" is set to 1.0 as shown in the following expression (3).

G_SIZE≧W_max→R＝1.0 (3)

On the other hand, if W_maxLarger than the dimension G in the width direction in the drawing region_SIZEThe reduction rate R of the characters "I", "C", and "W" is set as shown in the following formula (4).

G_SIZE<W_max→R＝W_max/G_SIZE(4)

In the method 2, all characters are uniformly reduced at the reduction rate R, and therefore the balance of the character string before reduction is the same as the balance of the character string after reduction.

However, characters having a narrow width Wc, such as the character "I", are excessively vertically long, and readability is deteriorated.

In embodiment 1, an example in which characters of a reduced-scale font are drawn by the method 3 will be described.

First, the reduction ratio setting unit 6 obtains the maximum size W stored in the maximum size storage unit 3_maxAnd obtains the dimension G in the width direction in the drawing area stored in the area dimension storage unit 5_SIZE(step ST1 of FIG. 4).

Then, the reduction rate setting unit 6 acquires the character string stored in the character string storage unit 4 (step ST2 in fig. 4).

Next, the reduction ratio setting unit 6 compares the maximum size W_maxAnd a dimension G in the width direction in the drawing region_SIZE(step ST3 of FIG. 4).

At the maximum dimension W_maxTo delineate the dimension G in the width direction in the region_SIZEIn the following case (step ST3 of fig. 4: yes), the reduction ratio setting unit 6 determines that it is not necessary to reduce all the characters included in the character string because the width directions of all the characters included in the character string stored in the character string storage unit 4 are contained in the width direction of the drawing area.

When it is determined that it is not necessary to reduce all the characters, the reduction ratio setting unit 6 sets the 1 st reduction ratio R as shown in the following expression (5)₁The reduction rate R of the characters "I", "C", and "W" included in the character string is 1.0 (step ST4 in fig. 4).

G_SIZE≧W_max→R₁＝1.0 (5)

The character reduction part 8 of the drawing part 7 has a 1 st reduction ratio R set by the reduction ratio setting part 6₁The width direction of the characters "I", "C", and "W" included in the character string is reduced. The size Wc' in the width direction of the character reduced by the character reducing section 8 is represented by the following expression (6).

Wc’＝Wc/R₁(6)

However, the 1 st reduction ratio R set by the reduction ratio setting unit 6₁Since the size Wc is 1.0, the size Wc' in the width direction of the character after the reduction processing by the character reduction unit 8 does not change from the size Wc in the width direction of the character before the reduction processing.

The character drawing unit 9 of the drawing unit 7 draws the characters "I", "C", and "W" respectively, which have been reduced by the character reduction unit 8 (step ST5 of fig. 4).

At the maximum dimension W_maxLarger than the dimension G in the width direction in the drawing region_SIZEIn the case of (1) (step ST3 in fig. 4: no), the width direction of at least some of the characters included in the character string stored in the character string storage unit 4 is not accommodated in the width direction of the drawing area, and therefore, the reduction rate setting unit 6 determines that the characters included in the character string need to be reduced.

When it is determined that the character needs to be reduced, the reduction ratio setting unit 6 acquires the width dimension Wc of each of the characters "I", "C", and "W" included in the character string from the character width storage unit 2 (step ST6 in fig. 4).

The reduction ratio setting unit 6 compares, for each character included in the character string, the width dimension Wc of the character with the width dimension G of the drawing area_SIZE(step ST7 of FIG. 4).

The dimension Wc in the width direction of the character is the dimension G in the width direction in the drawing region_SIZEIn the following case (step ST7 of fig. 4: yes), the reduction ratio setting unit 6 determines that the character is a character having a narrow size in the width direction.

As shown in fig. 6, it is determined that the dimension Wc is the dimension G in the width direction in the drawing area for the character "I" among the characters "I", "C", and "W" included in the character string_SIZEThe following.

Since the character becomes excessively vertically long when the reduction rate R of the character having a small size in the width direction is set to a reduction rate having a large reduction degree, the reduction rate setting unit 6 sets the reduction rate R of the character to the 2 nd reduction rate R having a small reduction degree, thereby deteriorating readability₂(step ST8 of FIG. 4).

That is, the width-directional dimension Wc of the character is the width-directional dimension G of the drawing region_SIZEIn the following case, as shown in the following expression (7), the reduction ratio setting unit 6 sets the maximum size W to 1.0_maxDivided by the dimension G in the width direction in the drawing area_SIZEThe average value of the obtained values is defined as the 2 nd reduction ratio R₂。

G_SIZE<W_max&Wc≦G_SIZE

→R₂＝(1.0+W_max/G_SIZE)/2 (7)

The dimension Wc in the width direction of the character is larger than the dimension G in the width direction of the drawing region_SIZEIn the case of (4, step ST 7: no), the reduction ratio setting unit 6 determines that the character is a character having a wide size in the width direction.

As shown in fig. 6, it is determined that the size Wc is larger than the width-direction size G in the drawing area for the characters "C" and "W" of the characters "I", "C", and "W" included in the character string_SIZE。

For dimension Wc larger than dimension G in width direction in the drawing region_SIZEThe reduction ratio setting unit 6 sets the reduction ratio R of the character to a degree of reduction smaller than the 2 nd reduction ratio R so that the width direction of the character is accommodated in the width direction of the drawing area₂Large 3 rd reduction ratio R₃(step ST9 of FIG. 4).

That is, the dimension Wc in the width direction of the character is larger than the dimension G in the width direction in the drawing region_SIZEIn the case of (3), as shown in the following expression (8), the reduction ratio setting unit 6 sets the division of the width-direction dimension Wc of the character by the width-direction dimension G in the drawing area_SIZEThe obtained value and the maximum dimension W_maxDivided by the dimension G in the width direction in the drawing area_SIZEThe average value of the obtained values is defined as the 3 rd reduction ratio R₃。

G_SIZE<W_max&Wc>G_SIZE

→R₃＝(Wc/G_SIZE+W_max/G_SIZE)/2 (8)

In addition, the 3 rd reduction ratio R₃Is a reduction ratio that varies according to the width dimension Wc of the character.

The character reduction part 8 of the drawing part 7 has a 2 nd reduction ratio R set by the reduction ratio setting part 6₂Or a 3 rd reduction ratio R₃The width direction of each character included in the character string is reduced (step ST10 in fig. 4). The size Wc' in the width direction of the character reduced by the character reducing section 8 is represented by the following expression (9) or expression (10).

Wc’＝Wc/R₂(9)

Wc’＝Wc/R₃(10)

For the characters "I" in the characters "I", "C" and "W" contained in the character string, the 2 nd reduction rate R is used₂The width direction is reduced.

The characters "C" and "W" are reduced by a 3 rd reduction rate R₃The width direction is reduced.

The character drawing unit 9 of the drawing unit 7 draws the characters "I", "C", and "W" reduced in width by the character reduction unit 8, respectively (step ST11 of fig. 4).

In embodiment 1, an example in which the drawing element is drawn in the width direction of the drawing element or in the height direction of the drawing element in a reduced size is described, but the drawing element may be drawn in a reduced size in the height direction.

In this case, the character width storage unit 2 stores a height dimension Wc of the character instead of the width dimension Wc of the character, and the maximum dimension storage unit 3 stores a maximum dimension W of the height dimensions Wc of the characters stored in the character width storage unit 2_max。

The area size storage unit 5 stores a dimension G in the height direction in the drawing area where drawing of characters is permitted_SIZE。

Further, not only the drawing can be performed in 1 direction of the width direction or the height direction, but also the drawing can be performed in 2 directions of the width direction and the height direction.

As is clear from the above, according to embodiment 1, when one direction of drawing elements is contained in one direction in a drawing area allowing drawing in all of drawing elements of 1 or more characters or 1 or more symbols that can be drawn, a reduction rate R in one direction of all the drawing elements included in a character string or a symbol string that is a drawing target is set to a 1 st reduction rate R₁When one direction of at least some of the 1 or more drawing elements that can be drawn is not contained in one direction in the drawing region, the reduction rate R in one direction is set to be smaller than the 1 st reduction rate R for the drawing element, one direction of which is contained in one direction in the drawing region, of the 1 or more drawing elements included in the character string₁Large 2 nd reduction ratio R₂For the drawing elements in one direction which is not contained in the drawing area, the reduction rate R in one direction is set to be smaller than the 2 nd reduction rate R₂Large 3 rd reduction ratio R₃. Therefore, the following effects are obtained: characters or symbols, which are elements of the drawing in the scaled font, can be drawn in a reduced size without causing a reduction in readability.

Although embodiment 1 shows an example in which the letters "a" to "Z" are stored in the drawing element storage unit 1 as 1 or more characters that can be drawn, for example, numerals, hiragana, kanji, or the like may be stored in the drawing element storage unit 1 as 1 or more characters that can be drawn.

When the character string stored in the character string storage unit 4 is always the same character string, only the characters included in the character string may be stored in the drawing element storage unit 1.

For example, when the character string "Hello" is drawn all the time, only the characters "H", "e", "l", and "o" included in the character string are stored in the drawing element storage unit 1.

In embodiment 1, an example is shown in which the reduction ratio setting unit 6 handles 1 character or 1 symbol as a drawing element, but the reduction ratio setting unit 6 may handle a character string in which 1 or more characters are arranged as a drawing element or a symbol string in which 1 or more symbols are arranged as a drawing element.

In this case, a character string in which 1 or more characters are arranged is stored as 1 character in the drawing element storage unit 1. Alternatively, a symbol string in which 1 or more symbols are arranged is stored as 1 symbol in the drawing element storage unit 1.

Then, the width-direction or height-direction dimension Wc of each character string or the width-direction or height-direction dimension Wc of each symbol string is stored in the character width storage unit 2.

Then, the largest dimension W among the dimensions Wc in the width direction or the height direction of each character string or each symbol string stored in the character width storage unit 2 is set_maxTo the maximum size storage section 3.

Further, a character string to be drawn including 1 or more character strings or a symbol string to be drawn including 1 or more symbol strings is stored in the character string storage unit 4.

Here, examples in which the character strings handled as 1 character are "チリ (chile)", "ブラジル (brazil)", and "アルゼンチン (argentina)", respectively, will be described.

Fig. 10 is an explanatory diagram showing a result of drawing without narrowing down all character strings handled as 1 character.

In the case of narrowing down by the 3 rd method, as shown in fig. 13, the thickness of the entire character string and character stroke of "チリ" is not excessively thin, and therefore, a drawing result with high readability can be obtained as compared with the drawing results shown in fig. 10 to 12.

Although embodiment 1 shows an example in which the letters "a" to "Z" are stored in the drawing element storage unit 1 as 1 or more characters that can be drawn, the letters "a" to "Z" and the numbers "0" to "9" may be stored in the drawing element storage unit 1 as 1 or more characters that can be drawn, for example.

In the drawing result shown in fig. 17, the gap between adjacent characters becomes wider than in the drawing result shown in fig. 15, and the readability of characters having a narrow width direction, such as characters "I" and "1", is improved as compared with the drawing result shown in fig. 16.

The drawing results shown in fig. 17 are more readable than the drawing results shown in fig. 14 to 16.

Fig. 18 to 21 show results of drawing characters of fonts different from those of fig. 14 to 17.

Fig. 18 is an explanatory diagram showing the result of drawing without reducing the letters "a" to "Z" and the numbers "0" to "9".

In the drawing result shown in fig. 21, the gap between adjacent characters becomes larger than in the drawing result shown in fig. 19, and the readability of characters having a narrow width direction, such as characters "I" and "1", is improved as compared with the drawing result shown in fig. 20.

The drawing results shown in fig. 21 are more readable than the drawing results shown in fig. 18 to 20.

In embodiment 1, the reduction ratio setting unit 6 sets 1.0 as the 1 st reduction ratio R₁But only if the 1 st reduction rate R₁Is less than the 2 nd reduction rate R₂The scale of (3) may be set to a value larger than 1.0 as the 1 st reduction rate R₁。

The reduction ratio setting unit 6 sets the 2 nd reduction ratio R as shown in the formula (7)₂Setting the 3 rd reduction rate R as shown in equation (8)₃As long as the scale is of the 1 st reduction rate R₁<2 nd reduction ratio R₂<3 rd reduction ratio R₃That is, the 2 nd reduction ratio R₂Is not limited to the mode of the formula (7), and the 3 rd reduction ratio R₃The setting of (b) is not limited to the mode of the equation (8).

Embodiment mode 2

In embodiment 1, the dimension Wc in the width direction of the character is the dimension G in the width direction in the drawing region_SIZEIn the following case, the reduction ratio setting unit 6 sets the maximum size W to 1.0_maxDivided by the dimension G in the width direction in the drawing area_SIZEAnd the average value of the obtained values is taken as the 2 nd reduction rate R₂Examples of (3). The reduction ratio setting unit 6 sets the size Wc of the character in the width direction divided by the size G in the width direction in the drawing area_SIZEThe obtained value and the maximum dimension W_maxDivided by the dimension G in the width direction in the drawing area_SIZEAnd the average value of the obtained values is taken as the 3 rd reduction ratio R₃Examples of (2)。

In embodiment 2, the reduction ratio setting unit 6 sets the maximum size W to 1.0_maxDivided by the dimension G in the width direction in the drawing area_SIZEAnd the weighted average of the obtained values is taken as the 2 nd reduction rate R₂Setting the width dimension Wc of the character divided by the width dimension G of the drawing area_SIZEThe obtained value and the maximum dimension W_maxDivided by the dimension G in the width direction in the drawing area_SIZEAnd the weighted average of the obtained values is taken as the 3 rd reduction ratio R₃Examples of (3).

The dimension Wc in the width direction of the character is the dimension G in the width direction in the drawing region_SIZEIn the following case (step ST7 of fig. 4: yes), the reduction ratio setting unit 6 sets the reduction ratio R of the character to the 2 nd reduction ratio R with a smaller reduction degree, as in the above-described embodiment 1₂(step ST8 of FIG. 4).

However, unlike embodiment 1, the reduction ratio setting unit 6 sets the maximum size W to 1.0 as shown in the following expression (11)_maxDivided by the dimension G in the width direction in the drawing area_SIZEThe weighted average of the obtained values is used as the 2 nd reduction rate R₂。

G_SIZE<W_max&Wc≦G_SIZE

→R₂＝(a×1.0+b×(W_max/G_SIZE))/2 (11)

In equation (11), a and b are weighting coefficients.

The dimension Wc in the width direction of the character is larger than the dimension G in the width direction of the drawing region_SIZEIn the case of (4) (step ST 7: no), the reduction ratio setting unit 6 sets the reduction ratio R of the character to the 3 rd reduction ratio R in the same manner as in embodiment 1 described above₃(step ST9 of FIG. 4).

However, unlike embodiment 1, the reduction ratio setting unit 6 sets the size Wc in the width direction of the character divided by the size G in the width direction in the drawing area as shown in the following expression (12)_SIZEThe obtained value and the maximum dimension W_maxIs divided byDimension G in the width direction in the drawing region_SIZEThe weighted average of the obtained values is used as the 3 rd reduction ratio R₃。

G_SIZE<W_max&Wc>G_SIZE

→R₃＝(a×(Wc/G_SIZE)+b×(W_max/G_SIZE))/2 (12)

As can be seen from the above, according to embodiment 2, the 2 nd reduction rate R is set by using the weighted average value₂And a 3 rd reduction ratio R₃Therefore, in addition to the same effects as those of embodiment 1 described above, an effect is achieved in which the balance between the readability of each character and the uniformity between characters can be appropriately adjusted.

In the present application, it is possible to freely combine the respective embodiments, to modify any component of the respective embodiments, or to omit any component in the respective embodiments within the scope of the invention.

Industrial applicability

The present invention is applicable to a drawing device and a drawing method for setting a reduction ratio of a drawing element that is a character or symbol and drawing the drawing element at the set reduction ratio.

Description of the symbols

1 a drawing element storage unit; 2 character width storage part; 3 a maximum size storage section; 4 character string storage part; 5 area size storage part; 6 a reduction ratio setting unit; 7 a drawing unit; 8 character reducing part; 9 character drawing part; drawing 21 an element storage circuit; 22 character width memory circuit; 23 maximum size memory circuit; 24 character string storage circuits; 25 area size memory circuits; 26 a reduction ratio setting circuit; 27 depicts a circuit; 31 a memory; 32 a processor.

Claims

1. A rendering device, comprising:

a reduction ratio setting unit that sets, when one direction of drawing elements is contained in one direction in a drawing area allowing drawing in all of drawing elements that are 1 or more characters capable of being drawn or 1 or more symbols capable of being drawn, a reduction ratio in one direction of all of the drawing elements contained in a character string that is a drawing target or a symbol string that is a drawing target to a 1 st reduction ratio, and sets, when one direction of at least some of the 1 or more drawing elements that are capable of being drawn is not contained in one direction in the drawing area, a reduction ratio in one direction to a 2 nd reduction ratio that is larger in reduction degree than the 1 st reduction ratio with respect to one direction of the drawing elements that is contained in one direction in the drawing area among 1 or more drawing elements contained in the character string or the symbol string, setting a 3 rd reduction ratio, which is greater in reduction degree than the 2 nd reduction ratio, to a reduction ratio in one direction for drawing elements in one direction which are not accommodated in the drawing area in the one direction; and

and a drawing unit that draws each drawing element included in the character string or the symbol string at the reduction rate set by the reduction rate setting unit.

2. The rendering device of claim 1,

the reduction ratio setting unit sets 1.0, which is a value in one direction of the non-reduction drawing elements, as the 1 st reduction ratio.

3. The rendering device of claim 2,

the reduction ratio setting unit sets an average value of a value obtained by dividing a maximum size in one direction of the drawing area between 1.0 and the size in one direction of the 1 or more drawing elements that can be drawn by the drawing area by the size in one direction of the drawing area as the 2 nd reduction ratio,

the reduction ratio setting unit sets, as the 3 rd reduction ratio, an average value of a value obtained by dividing a size in one direction of one drawing element, the size in one direction of which is not stored in the drawing area, by the size in one direction of the drawing area, and a value obtained by dividing the maximum size by the size in one direction of the drawing area.

4. The rendering device of claim 2,

the reduction ratio setting unit sets a weighted average of a value obtained by dividing a maximum size in one direction of the 1.0 and the 1 or more drawing elements that can be drawn by the size in one direction in the drawing area as the 2 nd reduction ratio,

the reduction ratio setting unit sets, as the 3 rd reduction ratio, a weighted average of a value obtained by dividing a size in one direction of one drawing element, the size in one direction of which is not stored in the drawing area, by the size in one direction of the drawing area, and a value obtained by dividing the maximum size by the size in one direction of the drawing area.

5. The rendering device of claim 1,

the reduction rate setting unit treats, as the drawing element, a character string in which 1 or more characters are arranged, or treats, as the drawing element, a symbol string in which 1 or more symbols are arranged, and includes, in the character string to be drawn, 1 or more character strings to be handled as the drawing element, or includes, in the symbol string to be drawn, 1 or more symbol strings to be handled as the drawing element.

6. A method of rendering, characterized in that,

a reduction ratio setting unit that sets a reduction ratio of one direction to a 1 st reduction ratio among all drawing elements that are all of 1 or more drawable characters or 1 or more drawable symbols in a case where the one direction of the drawing elements is contained in one direction in a drawing area that allows drawing, and sets a reduction ratio of one direction to a 2 nd reduction ratio that is larger in reduction degree than the 1 st reduction ratio among drawing elements that are contained in the one direction in the drawing area among 1 or more drawable drawing elements in a case where the one direction of at least some of the drawing elements among the 1 or more drawable drawing elements is not contained in one direction in the drawing area, setting a 3 rd reduction ratio, which is greater in reduction degree than the 2 nd reduction ratio, to a reduction ratio in one direction for drawing elements in one direction which are not accommodated in the drawing area in the one direction; and

the drawing unit draws the drawing elements included in the character string or the symbol string at the reduction ratios set by the reduction ratio setting unit.