JPH0239360A - Document processor - Google Patents

Abstract

PURPOSE:To obtain outline data that is easily evolved by erasing the common contour lines in case plural vector fonts are synthesized for production of characters covering plural lines. CONSTITUTION:When the input character codes show the characters covering plural lines, an address part 10 points out plural addresses of a font memory part and reads out the vector font data 60 and 61. The outlines of these font data are defined by the closed loops and therefore a common line deleting part 13 deletes the undesired parts 62 and 63 when said data are synthesized. Thus the outline data is synthesized by a synthesizing part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document processing device that stores font data such as characters and graphics in vector fonts.

[Prior Art] Generally, in a document processing device having a vector font, the font data of a document to be displayed or printed is divided into the display start position and end position when it is displayed as information on each line segment constituting one character. It is stored in the form of a vector represented by . Further, methods for realizing each line segment of such a vector font include a method using straight line segments, a method using interpolation using circular arcs or cubic splines, and a method generating using B-splines. Note that among vector fonts, fonts in which the outlines of characters are expressed by vectors are sometimes called outline fonts.

Compared to fonts composed of dot matrix, vector fonts do not need to have font data for each character size, so they have the advantage of requiring less memory space, and there is no wobble in characters even when enlarged/reduced. It has the advantage that no sticking occurs.

[Problem to be solved by the invention] Out of the characters whose outlines are composed of such vector fonts, it is possible to combine multiple vector fonts into one character, such as logos created with external characters. There are things that create patterns.

When developing such character fonts into pattern data, the outline of each font data consists of a closed loop, so when combining multiple font data and converting it into pattern data, solid black There is no problem when converting to a dot pattern, but when converting a dot pattern, for example, there are cases where the outline remains.

The present invention has been made in view of the above-mentioned conventional example, and when creating a vector font for characters or symbols by combining a plurality of vector fonts, the outline portion common to each vector font is erased, and the characters and symbols are It is an object of the present invention to provide a document processing device that facilitates processing of developing a symbol into a dot pattern by creating outline data for a symbol.

[Means for Solving the Problems] In order to achieve the above object, a document processing device of the present invention has the following configuration. In other words, it is a document processing device that stores the outlines of characters and symbols as vector fonts, which includes a storage means that stores a plurality of vector fonts representing pattern information of characters and symbols, and a storage means that corresponds to an index code. The image forming apparatus includes a dot developing means for developing dots representing the outline from a plurality of vector fonts, and a synthesizing means for erasing and composing data representing common outlines among the vector fonts.

[Operation] In the above configuration, a plurality of vector fonts representing pattern information of characters and symbols are stored in the storage means, and dots representing outlines are developed from the plurality of vector fonts in accordance with an index code. At this time, data representing common outlines between vector fonts is erased and composited.

[Examples] Hereinafter, detailed examples of the present invention will be described in detail with reference to the accompanying drawings.

[Description of Document Processing Apparatus (FIG. 1)] FIG. 1 is a functional block diagram of a document processing apparatus according to an embodiment.

In the figure, when a character code is input, 10 is an address field that specifies the font address of the font storage unit where the corresponding pattern data is stored, 11.12 are both font storage units that store vector fonts, and 1 When there is a plurality of font data corresponding to one character code (for example, in the case of a plurality of lines to be described later), two font storage sections 11 and 12 are addressed by the address section 10. 13 is a common line deletion unit that reads out the font storage units 11 and 12, checks the font data, and deletes common contour lines; 14 is a font storage unit 11 and 12;
This is a synthesis unit that synthesizes the font data of , and creates a vector font corresponding to the input character code. 15
is a dot pattern converter that converts the vector font synthesized by the synthesizer 14 into dot pattern data.

FIG. 2 is a block diagram showing a schematic configuration of a document processing apparatus according to an embodiment of the present invention.

In the figure, ioo is a control unit that controls the entire document processing device, and is a CPU such as a microcomputer.
, a ROM 102 that stores control programs and various data for the CPU 10I, and a RAM 103 that temporarily stores various data as a work area for the CPU 10I. Further, 104 and 105 are address tables that store addresses of font data corresponding to the size of each character pattern, and table 104 is a table for referring to font data 106 of normal size (one line). , table 105 is an address table for reading out font data 107 of large size (spanning multiple lines).

Both 106 and 107 are font memories that store font data such as characters in vector fonts, font data 106 is normal character size font data, 10
Reference numeral 7 denotes font data in which font data having a size extending over multiple lines is divided and stored in the same size as the font size of the font data 106, as will be described later.

A CRT display section 110 displays images corresponding to the dot information stored in the video memory 111, as well as input document information, messages to the operator, control data, and the like. Reference numeral 112 indicates a keyboard for inputting document information and control information by an operator, and reference numeral 113 indicates a mouse for manually inputting commands by moving a cursor, etc. with CRTIIO, specifying a command image such as an icon, or specifying a coordinate position on the screen. It is a pointing device such as. 114 is a printer such as a laser beam, and 115 is an interface unit that performs interface control between the printer 114 and the control unit 100. 116 is an image memory for storing image data such as characters;
The commands output from the keyboard 112, mouse 113, etc. are output to the printer 114, etc., and an image is formed.

Reference numeral 117 denotes a bit manipulation unit (BMU) used as a pattern development means, a pattern transformation means, etc. in this embodiment, and the BMU 117 transforms any character string developed and displayed on the CRTIIO from the pointing device 113. When an interval and character transformation information for this character string are specified manually, display data corresponding to each character specified in the interval can be transformed and developed.

can.

[Explanation of Pattern Development (FIGS. 3 and 4)] FIG. 3 is a diagram showing character code pattern development processing in the document processing apparatus of this embodiment.

201 is input character data, and this data 201 includes character code, character size, and data indicating how many lines this character will be displayed (including printing) (hereinafter referred to as
(referred to as gyodori data), etc. 202 performs subsequent processing based on the input font size data, for example, if it is 16 font or more, a character pattern is created using a vector font, and if it is less than 16 font, a character pattern is created using a dot pattern. This is a size determination section for switching.

Here, in contrast to the flow of processing for creating a character pattern from the dot pattern data 205 at the top of FIG. 3, the main part of this embodiment is pattern development processing using a vector font shown in processing block 220. This block 220 will be explained below.

The line pattern determining unit 210 determines how many lines the characters indicated by the input character code are arranged in a pattern. The operation of this line-dori determination section 210 is basically the same as the operation of the line-dori determination section 203. The address table 211 is configured according to the line information from the line arrangement determination unit 210.
When displayed in one line, the pattern is developed by converting the font data of the vector font 212 into dot data, and when the pattern is developed over multiple lines, the pattern is developed using multiple font data of the vector font 213. .

The font 222 of the vector font 212 is
The font 223 of the vector font 213 represents the upper half of the inch-gray symbol "1", and the font 224 represents the lower half of the inch-gray symbol "1".

Therefore, when the character code of Inchgra is input and the line arrangement determination unit 210 determines that the symbol "(" will be displayed and output in one line, the font data 222 of the vector font 212 is referenced by the address table 211. and read out.

On the other hand, if the line arrangement determination unit 210 determines that the display will span multiple lines, for example, two lines, the address table 2
11, the font data 223 and 224 are read out, and the respective vector fonts are combined into one vector font.

The font data thus read out or synthesized is converted from a vector font into dot image data by a dot conversion section 214, details of which are shown in FIG. 4, and output as a dot character pattern.

On the other hand, when the character size is 16 digits, the character code is sent to the gyodori determination section 203, and it is determined how many lines the character code will be displayed over. And when it is displayed in one line,
Dot pattern data 2 is determined by the address table 204.
When the pattern data 05 is read out and displayed alternately in a plurality of lines, a plurality of corresponding divided dot patterns are read out from the dot pattern data 206. Here, as in the case of vector font 212.2!3, the pattern data of the dot pattern data 205 is "("The entire dot pattern is stored, and the pattern data of the dot pattern data 206 is "(" The pattern data for the upper half and lower half of the dot pattern data 205
The size is the same as the pattern size. 207
1 is a conversion unit that performs conversion such as enlarging or reducing the read dot pattern data according to the number of lines.

FIG. 4 is a block diagram showing a schematic configuration of the dot conversion section 214 of the embodiment.

This dot conversion section 214 manually inputs the coordinate data constituting the vector font, and performs affine transformation etc. as necessary using the transformation circuit 3.1. The converted coordinate data is then sent to the contour drawing section 302, where contour data of characters and the like is created. These contour lines are composed of closed curves, and 303 is a filling section 303 that fills in the inside of these contour data. This type of filling process is performed using, for example, paint (PAI NT) in the BASIC language.
It can be executed using the same processing as commands.

[Description of vector font synthesis processing (FIGS. 5 to 9)] FIG. 5 is a diagram showing outline data consisting of sample points obtained by sampling the kanji character "ai" using the B-spline method.

In the figure, the sample points of the character ``love'' are shown as small circular dots, which are arranged in a matrix of 512 x 512 dots. Here, each outline data is configured in a closed loop. A B-spline is created by using the start and end points of a certain curve section as fulcrums and generating a spline inside the sample point as the apex.

FIG. 6 is a diagram showing an example of vector font data of the upper half 60 and lower half 61 of the inch graphic symbol "1" developed by the spline method.

Here, the closed loop part surrounding the diagonal line part 64 of the lower half 60 is the vector font data above the inch graphic symbol,
The closed loop surrounding the diagonally shaded portion 65 in the lower half is the vector font data below the inch gras symbol. Here, line segment 62
and 63 are vector font parts common to each other, and 2
When composing two font data, this line segment is deleted by, for example, exclusive ORing, etc.
The shaded portions 64 and 65 are combined into one piece.

FIG. 7 is a diagram showing an example of the vector font data in the shaded area 64 in FIG. The column shown is the sample data area that stores the coordinate values and attribute flags of each sample point.
71 is the coordinate value of point 66 in Fig. 6, 72 is the sample point 67
73 stores the coordinate value of the sample point 68, and 74 stores the coordinate value of the last sample point 69. Further, the attribute flag 53 stores the characteristics of each sample point. That is, 54 is a flag indicating that the sample point 66 is the starting point, and 55 is a flag indicating that the sample point 66 is a common coordinate (sample) point with the other vector font. According to the above-mentioned exclusive OR method, the points 66 and 69 are blanked out, so it is necessary to remove the points as white before performing the exclusive OR, or to fill in the points later. .

In addition, 56 of the attribute flags 53 is the sample point 6 in FIG.
7 indicates that it is a curve section.

In this way, the attribute flag 53 stores information such as the end point or start point of a curve section, information indicating that it is an end point or a straight section, and information indicating that the end point is a point common to other vector fonts. There is.

FIGS. 8 and 9 show address tables 104 and 1, respectively.
05, an address table 104 is an address table for addressing vector font data of a vector font 106, and an address table 105 is an address table for addressing vector font data of a vector font 107.

In either table, the management table stores the creation date of the font data, the file size of the font data, the start address of the font data, and the like. In the address area 80 of the address table 104,
Addresses of font data corresponding to JIS codes are each stored in 2 bytes. address table 1
The address area 81 of 05 contains, for example, font data 223 and 22 in Fig. 3, corresponding to one JIS code.
Font addresses of a plurality of divided font data corresponding to one character or symbol, such as 4, are stored.

[Description of pattern development processing (FIG. 10)] FIG. 10 is a flowchart showing pattern development processing by the control unit 100 of the document processing apparatus of this embodiment. R.O.
It is stored in M102.

This program is started by inputting a character code, and the character code may be input from the keyboard 112 or the like, or the character code for one character may be read from the document buffer of the RAM 103 or the like. In this way, first, in step S1, a character code is input, and in step S2, the gyodori is determined, and it is checked whether the character code is expanded into a pattern and expanded into one line or across multiple lines. (Step S3).

If printing or displaying over multiple lines, step S
4, a plurality of vector font data of the vector font 107 is addressed with reference to the address table 105, and in step S5, the addressed plurality of font data is read from the vector font 107, and the data is stored in the RAM 103.
Store in.

Then, in step S6, the vector font 10 is
The attribute flag of each coordinate point of a plurality of vector fonts read from 7 is checked to see if the coordinate point is a common coordinate point with the coordinate point of the other vector font to be synthesized. This can be easily determined using the attribute flag 53 as described above. If there are common points, step S7
and delete the line segments connecting those points. For example, in FIG. 7, by changing the attribute flag of data 74 indicating sample point 69 in FIG. It is no longer a closed loop and line segment 62
will have been deleted. At this time, as mentioned above, in order to prevent the points 66 and 69 from appearing white, fill in the points, etc. m8! I do.

After erasing the line segment portion in this way, the process proceeds to step S8.
The common coordinate point detected in step S6 and the common coordinate point of the other font data are combined into one. This is shown in Figure 11, where point 66 and point 92 are combined into one point 93,
Point 69 and point 95 are converted into one point 96. In addition,
At this time, if the vector font data in the shaded area 64 is used as a reference, it goes without saying that the vector font data in the shaded area 65 will be font data biased by 512 dots in the Y-axis direction. In this way, it is checked in step S9 whether all the coordinate points have been checked, and if not, the process returns to step S6, but when it is finished, the process proceeds to step SIO.
Combine the font data as shown in Figure 11 and proceed to step S.
tt, the vector font is developed into a dot pattern and stored in the image memory 116.

On the other hand, if the character pattern is to be displayed or printed within one line in step S3, the process advances to step S12, where the font data of the vector font 106 is addressed using the address table 104, and in step 513, the vector font 1
Read pattern data for one character from 06. and,
In step S11, the character pattern is converted into a dot pattern and stored in the image memory 116. The pattern data stored in the image memory 116 is output to the printer 114 and printed, or stored in the video memory 111 and displayed on the CRTllo.

As explained above, according to this embodiment, when a plurality of vector fonts, such as characters divided corresponding to each line, are stored, and a plurality of patterns of the characters, etc. are printed or displayed, By combining the plurality of divided patterns and converting it into a dot pattern, the dot pattern can be easily created.

In addition, when compositing, it is possible to erase common line segments between vector fonts so that unnecessary border lines between vector fonts do not remain, so characters can be filled in or reversed. Processing etc. can be done very easily.

[Effects of the Invention] As explained above, according to the present invention, when a character or symbol is created by composing a plurality of vector fonts, the outline portion common to each vector font is deleted, and the character or symbol is By creating outline data for the dot pattern, it is possible to easily develop it into a dot pattern.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of a document processing device according to an embodiment. FIG. 2 is a block diagram showing a schematic configuration of a document processing device according to an embodiment. FIG. 3 explains pattern development processing in the document processing device according to an embodiment. Figure 4 is a block diagram showing the schematic configuration of the dot conversion section in Figure 3. Figure 5 is a diagram showing character sample points using the B-spline method. Figures 6 and 11 are diagrams of the inch graph symbol. FIG. 7 is a diagram showing an example of vector font composition, FIG. 7 is a diagram showing an example of vector font data in the embodiment, FIGS. 8 and 9 are diagrams showing an example of the structure of the address table in the embodiment, and FIG. is a flowchart showing pattern development processing in the document processing device of the embodiment. In the figure, 10... Address section, 11. 12... Font storage section, 13... Common line deletion section, 14... Composition section, 15... Dot pattern conversion section, 53... Attribute Flag, 62.63...Common line segment, 66-69...Sample point, 100...Control unit, 101...CPU,
102...ROM, 103...RAM, 104,1
05... Address table, 106, 107... Vector font, 110... CRT, 111... Video memory, 112... Keyboard, 113... Mouse, 114... Printer, 115...・Interface section, 116...image memory, 117...B
MU, 118...System bus, 202...Size determination unit, 203.210...Gyodori determination unit, 204.
211... Address table, 207... Conversion unit,
214... Dont conversion unit, 301... Transformation circuit,
302: Outline drawing section, 303: Filling section.

Claims (2)

[Claims] (1) A document processing device that stores the contours of characters and symbols in vector fonts, which is compatible with a storage means that stores multiple vector fonts that represent pattern information of characters and symbols, and an index code. document processing comprising: dot development means for developing dots representing contours from a plurality of vector fonts; and composition means for deleting and composing data representing common contours among the vector fonts. Device. 2. The document processing apparatus according to claim 1, further comprising: (2) means for filling in the inside of the contour line synthesized by the synthesizing means with a desired pattern.