JP2962720B2 - Image processing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an image processing method capable of editing a line segment such as a table. [Prior Art] In a tabulation method in a conventional document processing apparatus, as a means for drawing a ruled line, (1) a start point and an end point of the ruled line are specified. (2) The number of lines to be ruled is specified, and the distance between the already drawn reference ruled line and the position specified separately is divided by the number of lines to be ruled to determine the position of the ruled line. The ruled line at the position is aligned with the grid (FIG. 2 (a), (b) 100) which is the closest lattice point. Such a method was taken. This will be described with reference to FIG. Reference numeral 15 in FIG. 2A indicates a reference line. The distance between the reference line and the cursor 20 (the difference in the y coordinate when the reference line is a horizontal ruled line, the difference in the X coordinate when the vertical line is a ruled line, and the difference in the y coordinate in this example) is the number of ruled lines. Divide by 5 to obtain the ruled line interval. When the positions of the five ruled lines are obtained at this interval, the dotted line 16 in FIG.
Align the positions of these rules to the nearest grid 100,
The result as shown in FIG. 2 (b) is obtained. However, although there are many tables that are generally used for documents and have the same line width, in the above-described division and crease method, a shift of up to one grid interval occurs as shown in FIG. 2 (b). It was difficult to draw equally spaced ruled lines. In addition, the operation is complicated because a ruled line that is parallel to one ruled line and has the same length is drawn each time to create one table. [Objective] In view of the above, the present invention provides a display step of displaying a line segment on a display screen, and a designation step of designating a desired line segment from the line segments displayed by the display step. A position designation step of designating a position on the display screen, and when a horizontal line segment is designated by the designation step, data of the y-coordinate of a ruled line record describing the designated line segment is written by the position designation step. By newly creating a ruled line record replaced with the y-coordinate of the designated position, a line segment passing through the designated position and changing only the y-coordinate of the designated line segment is displayed. When a vertical line segment is specified by the process, x of a ruled line record describing the specified line segment
By newly creating a ruled line record in which the coordinate data is replaced with the x coordinate of the position designated by the position designating step, a line passing only the designated position and changing only the x coordinate of the designated line segment A display control step of controlling display of minutes. EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. In addition,
The document referred to in the present invention is a generic term including a document (including a table), a graphic, an image, and the like. Further, if the functions of the present invention are performed, a system in which processing is performed via a network such as a LAN, whether it is a single device or a system including a plurality of devices, may be used. Needless to say, the present invention is applied. Note that the document processing of the present invention originally has a basic idea of electronically performing processing in which a human draws with a pen or the like on a desk. In the specification, “draw a line”, “move”, etc. This is due to electronic processing. [System Block Diagram] FIG. 1 is a system block diagram of a document processing apparatus according to an embodiment of the present invention. 1 is a CRT unit used in a raster scan display system, 2 is a video RAM (VRAM) that stores display pattern information for one screen, and 3 is a display control that controls writing of pattern information to VRAM2 and reading to CRT1. Department. Reference numeral 4 denotes a microprocessor (MPU), which is the main control of this device. Reference numeral 5 denotes a main memory having an area for storing a control program and document data as shown in a flowchart described later. The MPU 4 is connected to a keyboard 8 for inputting character data and the like and a pointing device (hereinafter PD) 9 for specifying a position on the CRT and inputting and editing data such as graphics. Reference numeral 6 denotes a hard disk device in which a document file, a program as shown in a flowchart described later, and a character font are stored.
Reference numeral 10 denotes a printer for outputting a created document, and includes a duplex output unit and the like. Reference numeral 11 denotes an image scanner for reading image data such as images, and reference numeral 12 denotes a floppy disk device for storing document files and the like. These constituent blocks are connected by an I / O bus 7. [Document Editing Screen] The document editing apparatus having the above-described configuration displays the spelling, character arrangement and its printing format based on the typesetting rules on the CRT 1, and is responsive using the keyboard 8 and P.D9. The document editing method can be applied to an arbitrary area on the screen or an area framed within the area. No. 3-1
The figure shows an example of a document editing screen, in which reference numeral 20 denotes a cursor operated by the PD, and reference numeral 21 denotes a paper window displaying a print format on the screen. As shown in Fig. 3-2, the characters 5
0, figure 51, image 52, and form 53 data can be input. Each of them has a priority order, and is displayed in the form of a form, an image, a figure, and a character in an overlapping manner. In addition, it is assumed that the following table set is equivalent to the above character. A reference numeral 22 in FIG. 3-1 is a user menu, in which a Kana-Kanji window for character input and a function selection function key are displayed. Reference numeral 23 denotes a status line on which a keyboard input mode, a message for an operator, and the like are displayed. Numeral 24 is a framed area on the paper (hereinafter referred to as a frame). In the frame, text (small group) or table data and graphic image data can be input. Is done. [Word Processor Editing] Next, each editing function will be described. Word processing editing
The user can input and edit characters in a sheet or a frame.
The input of characters is performed using functions such as Roman-Kana conversion and Kana-Kanji conversion. A format is assigned to each sheet. The sheet size, the position of the printing plate, which is an area for inputting and editing a document or the like on the sheet, the number of columns, the number of lines in the column, the character size of the text, the font (Mincho , Gossip, etc.), page numbers (page numbers), columns (headings on margins), and the like. The characters are displayed or printed according to this format. The editing function also performs partial character size and typeface changes, character modification of underline, emphasis point, ruby, superscript, subscript, etc., alignment of centering, right alignment, left alignment, uniform layout, etc. Furthermore, it has a search and replace function of searching for a character string and replacing it with another character string. It also has a floating frame editing function for moving, inputting, and deleting characters, moving along with the characters, opening a floating frame, changing the size, etc., and erasing. [Figure editing] Next, figure editing involves inputting figures such as straight lines, circles, rectangles, ellipses, etc. and editing the surface type, line type, moving, copying, erasing, transforming, rotating, enlarging, reducing, etc. It has functions such as a multi-layer structure that is composed of multiple layers of layers, can display and edit each layer independently, and can display multiple layers in a superimposed manner. [Image Editing] Image editing is for inputting images from Image Scanner,
It has a function of editing in units of dots for performing rotation, inversion, movement, copying, erasing of image data and editing in units of dots, and a function of trimming for partially cutting out image data. [Fixed frame editing] Next, fixed frame editing differs from floating frames in that a frame is opened at a fixed position on the paper, and a frame that does not depend on the movement of characters is opened.
It has functions such as resizing, moving, and erasing. [Table Composing Processing] Next, table composing processing, which is the main feature of the present invention, will be described.
The table set can be edited for frames that do not contain small sets. The functions are broadly divided into two types: ruled line editing for drawing, moving, and deleting ruled lines, and character editing for inputting characters and modifying characters such as underline and ruby. The purpose of rule line editing is to draw a rule line to create a table, and to create a rectangular area surrounded by rule lines called cells. Characters can be entered in this cell. Character editing is
The purpose is to enter characters into cells created by ruled line editing. By using these two editing functions, a high-quality and complicated table can be created quickly and easily. [Table Data Table Layout] FIG. 4 is a diagram showing an example of the layout of a table data table which is a part of the document data on the hard disk, a control table ruled line table, a text table, and cells (fifth.
-Frame as shown in Fig. 2). The control table is for managing the entire table data table. In stat, a number indicating a table data type is stored. measr stores control information for conversion from an internal storage coordinate unit to a CRT or printer coordinate unit.
Next, offsets and counts of the oblique lines, horizontal lines, vertical lines, text, and cell attributes are stored.
The offset is data indicating a diagonal line, a horizontal line, a vertical line of the ruled line table, and a starting address of a table area of the text data table and the cell attribute table. The count indicates the number of diagonal lines, horizontal lines, vertical lines, text, and attribute records. The diagonal line record is n1 and the horizontal line record is n2.
, The vertical line record is n3, the text record is n4, and the cell attribute record is n5. These offset and count
Thereby, areas of the ruled line table, the text table, and the attribute table can be grasped. [FIG. 4 Ruled Line Table] The ruled line table is a collection of information of oblique lines, horizontal lines, and vertical lines. POS (x, y) stores the start position of each line. The line style stores information indicating the line type of each line such as a solid line and a dashed line. The line width stores information on the thickness of each line. The flag stores the lock information of each ruled line. "round" stores information on rounding of intersections between horizontal and vertical lines. The length of each of the horizontal line record and the vertical line record stores information on the length of each line. The hatched w-length and h-length store information on the lengths in the horizontal and vertical directions, respectively. The text offset of the horizontal line record stores an offset indicating in which position in the text table the text data corresponding to the cell constituted by the horizontal line is stored. If there is no text, a value of -1 is stored. Each record in the ruled line table is sorted by the starting position information indicated by POS (x, y), where the oblique lines and horizontal lines are arranged in ascending order of x coordinate values, and the vertical lines are arranged in ascending order of y coordinate values. Note that this ruled line may be referred to as a fragment constituting a cell. [Figure 4 Text Table] The text table is composed of variable length text records. The attribute "offset" indicates where in the cell attribute table the attributes of the text, for example, the composition direction (vertical composition / horizontal composition), character size, character alignment such as left, right, centering, line spacing, character spacing, etc., are stored. Is an offset. The text count stores the number of characters of the text data. Text data is an array of character codes and text
It consists of count 2-byte codes. In flag, a flag such as a display state of a cell is set. There is one text record for each cell having a character or attribute, and there is always one attribute record for this text record. However, the same attribute is assigned to texts having exactly the same attribute. [FIG. 4 Cell Attribute Table] The cell attribute table is composed of variable length cell attribute records. Attrsiz stores the number of bytes in the size of one cell attribute. In flg, a flag indicating whether the flag is used or not is stored. In the mesh, the intermediate pattern number of the cell is stored. kum-f stores a flag indicating whether vertical setting or horizontal setting, character spacing or character pitch designation, or line spacing or line pitch designation flag is stored. aldp is
Information of upper, lower, left, and right character alignment, rotation angle of rotation display, and display method (whiteout, overwriting, etc.) are stored. The font stores information of a character typeface (Mincho, Gothic, etc.). ps stores the size of the character. lnsp.c
hsp stores values of line pitch or line spacing and character pitch or character spacing according to klm-f. lrmgn, udmgn stores left, right, top and bottom margin values. The operator uses division crease and continuous crease described later,
As will be described later, the rule can be drawn graphically as shown in FIG. 10, but internally the vertical and horizontal ruled lines are divided and stored at intersections as shown in FIG. 5-1. Since it is stored in this way, when drawing a table, it is done graphically and edited for each cell (such as deleting only the left side of one cell)
When it does, it becomes possible to do about each element. or,
The text data of each cell is held by a horizontal ruled line (a ruled line shown by a thick line in FIG. 5-2) at an upper left end among ruled lines constituting each cell (FIG. 5-2). [Divided Rule Drawing] A method of drawing a plurality of parallel ruled lines at equal intervals will be described with reference to FIGS. FIG. 6 shows the control flow chart. First, when a division rule is instructed by a keyboard or PD, a division number input window shown in FIG. 40 is displayed. In step 1 in FIG. 6, the number of parallel ruled lines (divided ruled lines) (division number) is input from the keyboard. FIG. 7 shows the case where the number of divisions is input as 10. In step 2, a reference line shown in FIG. 7 as a reference for the divided ruled line is determined. This is done by moving the cursor 20 with a PD on the ruled line that has already been drawn and pressing the PD button once (hereinafter, one click), or by creased the ruled line (at the starting point of the ruled line).
The reference line is determined by pressing the button on the PD, holding down and moving the cursor to the end point and releasing the button).
Next, in step 3, move the cursor to any position and
Button, the distance between the reference line and the position of the cursor (if the reference line is a horizontal ruled line, the difference in y-coordinate, if the reference line is a vertical ruled line, the difference in x-coordinate) is obtained, and this distance is divided by the number of divisions. The distance (FIG. 8-1 (a) L1) is obtained. In addition,
In FIG. 8-1, it is a horizontal ruled line. Next, the distance obtained in step 3 in step 4 is approximated to an integral multiple of the grid interval so that all the divided ruled lines are aligned with the grid 100. The approximation is Done by Since the division is performed with the fractional part truncated, the value to be obtained is obtained as an integral multiple of the grid interval (FIG. 8-1 (b) L2). Next, in step 5 of FIG. 6, as many divided rule lines as the number of divisions are displayed at the divided rule line intervals obtained in step 4 (FIG. 42). Fig. 6
Repeat the steps from step 3 until the PD button is released. The operator moves the cursor while pressing the PD button until the ruled line interval becomes appropriate. In response, a plurality of equally spaced ruled lines are displayed in real time. By releasing the PD button, the ruled line interval is determined, and the record of the divided ruled line is registered. [Continuous Crease] Next, a means for continuously crating parallel ruled lines at an arbitrary position will be described. It is started by instructing continuous crease by keyboard or PD. FIG. 9-1 shows a control flow chart of the continuous crease. First, a reference line is determined in setp1. This is determined by moving the cursor over the ruled line already drawn by the PD and clicking one or by ruled out the ruled line (FIG. 9-2, FIG. 41). Next, in step 2, the cursor 20 is moved to a position where a ruled line parallel to the reference line is to be drawn. When one click is performed, the x-coordinate of the reference line is clicked if the reference line is a vertical ruled line, and the y coordinate is clicked if the reference line is a horizontal ruled line in steps 4 to 7. Register the record replaced with the coordinates of the grid closest to (Fig. 10). After step2, 1
By repeating the click, parallel lines can be drawn continuously. [Line Erase] Movement of text data due to line erase will be described. First, FIG. 11 (a) is a control flowchart relating to erasure of a horizontal ruled line. Check whether the horizontal ruled line deleted in step 1 has a text (whether the text offset of the horizontal line record in FIG. 4 is not -1) or not (if -1), delete the horizontal ruled line record (st
ep5). If you have the text, check if it is a cell above the horizontal rule in step 2;
The text data is erased in ep4, and the ruled line data is erased in step 5 (in the case of the erasure of H3 in FIG. 12-1 (b)). When the upper part is a cell (in the case of erasing H1 in the 12-1 (a)), it is treated that the cells C1 and C2 are synthesized by erasing the ruled line. The result is combined with the text data held by H2, which is the text data of the cell, to obtain the result shown in the left diagram of FIG. 12A. The synthesis of the text in the present invention is performed based on the attribute of the cell to be synthesized by aldp or the like in the attribute table of the cell in FIG. That is, if one of the attributes of the cell C1 has "centering" in FIG. 12A, the attribute of the cell formed by erasing H1 is also "centering", and the "Ai" Is sentan ring. This also applies to the synthesis of other texts. Rearrangement of character strings in a table set, that is, combination of characters will be described with reference to FIGS. 12-2 to 12-3. Twelfth
FIG. 2 shows only the text table of FIG. First, as shown in FIG.
In the example of FIG. 1 (a), the text record held by H2 is extracted as shown in FIG. 12-2 (b), and the text tables after the extracted text record are packed forward as in FIG. 1 (c). At this time, the text offset of the horizontal ruled line that holds the packed text record is shifted, so the text offset of the record in the horizontal ruled table is examined in order, and the text offset of the ruled line record having a text offset larger than the offset of the destination text is calculated. By reducing the size of the destination text, the text of all horizontal rules
offset is corrected. Next, the extracted synthesis destination text is inserted at the end of the text table, and the inserted position is stored in the text offset of the horizontal ruled line record of the synthesis destination. Next, the synthesis source text is similarly moved after the synthesis destination text to a state as shown in FIG. Fig. 12-3 (a)
Are the text records of the synthesis destination and the synthesis source, respectively, that have been moved to the end of the text table. Next, the header portion (110 in FIG. 12-3 (a)) of the source text record is taken, and the subsequent portions are stuffed to the front, as shown in FIG. 12-3 (b). To the text count of the source text record. Further, the combining is completed by setting the text offset of the combining horizontal ruled line record to -1. Next, FIG. 11 (b) is a control flow chart when the vertical ruled line is deleted. It is checked whether the vertical ruled line erased in step 1 is a ruled line constituting the left side of the cell. If not, the ruled line record is deleted in step 4 and the processing ends.
If the ruled line constitutes the left side (for example, V1 in FIG. 12-1 (b)), check whether the upper left horizontal ruled line H3 of the cell (C3 in FIG. 12-1 (b)) has text. (Step2). If not, go to step 4; if so, check if the left side of the vertical ruled line is a cell (step 3). If it is not a cell, the process proceeds to step 4; if it is a cell (for example, when erasing V3 of the 12-1 (c)), in step 4, the text of the right cell is synthesized (the text of H5 is synthesized with the text of H4). [Move Ruled Line] (Move Horizontal Rule) Movement of a horizontal ruled line will be described. FIG. 13 shows the control flow chart. First, in step 1, it is checked whether the ruled line to be moved has text data (whether the text offset of the horizontal ruled record in FIG. 4 is not -1), and if it is not (if -1), it is moved as it is. . If there is text, check in step 2 whether the cell is above the horizontal ruled line. If it is not a cell, the text data moves with the ruled line (No.
14 Move H9 in Fig. (C) to the position of H9 '. H9 'had text, but the text is not displayed because it is no longer a cell (Fig. 14 (c), right). If the cell is above, step
In step 3, it is checked whether the result of moving the ruled line forms a cell. If the destination is a cell (No.
When H8 in FIG. 14B is moved to H8 ', the destination is cell 9'.) The text data moves together with the ruled line. If the destination is not a cell (Fig. 14 (a), move H6 to H6 '), in step 4, the text data of the ruled line is combined with the text data of the upper cell (the text of H6 is combined with H7). . This synthesis is described in FIGS. 12-2 and 12-3.
This is the same as the description in the figure. (Vertical Ruled Line Movement) Next, the movement of the vertical ruled line will be described. FIG. 15 shows the control flow chart. First, in step 1, it is checked whether the moving ruled line forms the left side of the cell. If No, move the ruled line in step 7 and end. If Yes, in step 2, it is checked whether or not the upper left horizontal ruled line (H15 when moving V5 in FIG. 16 (c)) has text. If No, go to step 7 and if you have one, check in step 3 if the left side of the moving rule is a cell. If it is not a cell, go to step 7 (V5 in FIG. 16 (c)).
Is moved to V5 ', and the text of H15 is no longer displayed because it is no longer a cell. ), If it is a cell, proceed to step 4 and determine whether the destination is a cell. If it is a cell, proceed to step 1 and combine the text of the upper left horizontal ruled line of the source cell with the upper left horizontal ruled line of the destination cell (combine the text of H13 in FIG. 16 (b) with the text of H13 ') ). If it is not a cell (V3 in FIG. 16 (a) is moved to V3 '), the text of the upper left horizontal ruled line (H11) of the source cell is moved. Combine with the text of H10) (the text is the ruled line of H10 '). [Cell Erase] Next, a method of erasing a ruled line in cell units without destroying a cell adjacent to a cell to be erased will be described. First,
Instruct cell erasure by keyboard or PD. Next, if there is one cell to be erased, the cell is clicked by one click by the PD (FIG. 17 (a)). If there is more than one, press the PD button as shown in FIG. 17 (b), move the cursor while pressing it, specify the range, and release the button. In this case P.
All cells in contact with a rectangle (shown by the line in FIG. 17) formed by two points, the position where the button D is pressed down and the position where the button D is released, are subject to cell erasure and are highlighted. When a cell to be erased is designated, first, the horizontal ruled line records in the ruled line table of FIG. 4 are sequentially processed as shown in the control flowchart of FIG. First, in step 1, it is checked whether or not a cell is below the ruled line. In other words, it is checked whether this ruled line forms the upper side of the cell. St if cell
It is checked whether or not the cell is inverted at ep2 (is the cell to be erased). If it is inverted, it is checked in step 3 whether the upper part of the ruled line is a cell (whether it constitutes the lower side of the cell). If it is a cell, it is checked in step 4 if the cell is inverted. If it is inverted, the text of that ruled line is offset in step5
The text record indicated by is deleted, and the ruled line record is deleted. If the upper cell is not inverted in step 4, if there is a next ruled line in step 8, the process is repeated from step 1. If there is no next ruled line, the process ends. Also, step3
In step 5, the text record and the ruled line record are deleted in step 5. If no cell is below the ruled line in step 1 or if the cell below is not inverted in step 2, it is checked in step 6 whether the cell is above the ruled line. If it is not a cell, the process moves to the next ruled line in step 8. Also, if the cell above the ruled line,
In step 7, it is checked whether the upper cell is inverted. If it is inverted, the ruled line and the text record are deleted, and if not, the process moves to the next ruled line. Next, the same processing is performed on the vertical ruled line. However, in the case of a vertical ruled line, a similar process can be performed by checking the right side of the portion under the ruled line in step 1 and step 2 and examining the left side of the portion above the ruled line in steps 3, 4, 6, and 7. . Further, since the vertical ruled line has no text, the erasure of the text record is not performed in step 5. By performing the above for all the horizontal ruled lines and the ruled line, all the ruled lines forming the side of the cell having no adjacent cell and the ruled line at the boundary between the inverted cells can be erased. Cell can be erased without damaging cells adjacent to the cell. As described above, the present invention has the following effects. By providing a plurality of parallel and equally spaced ruled means and a means for continuously drawing parallel ruled lines at arbitrary positions,
Realized quick creation with few operations as desired by the operator. When erasing or moving the ruled line, by determining the character synthesis destination in consideration of the lower left and right sides of the cell where the character is input, the unnecessary character data that does not belong to any ruled line is prevented, Saved document file space. [Effect] As described above, the present invention provides a display step of displaying a line segment on a display screen, a designation step of designating a desired line segment from the line segments displayed by the display step, A position specifying step of specifying a position on the display screen; and, when a horizontal line segment is specified in the specifying step, the y-coordinate data of a ruled line record describing the specified line segment is converted by the position specifying step. By newly creating a ruled line record replaced with the y coordinate of the designated position, a line segment passing through the designated position and changing only the y coordinate of the designated line segment is displayed. When a vertical line segment is specified in the process, a new ruled line record is created by replacing the x-coordinate data of the ruled line record describing the specified line segment with the x-coordinate of the position specified in the position specifying step. To do And a display control step of controlling to display a line segment that has been changed only by the x-coordinate of the specified line segment, passing through the designated position, thereby displaying the line segment displayed on the display screen. From among them, it is possible to easily draw a line segment having a length equal to a desired line segment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a system block diagram of an apparatus to which the present invention is applied, FIG. 2 is an explanatory diagram of a prior art, FIG. 3-1 is an explanatory diagram of a document editing screen, and FIG. Illustration of character, figure, image, and form data, FIG. 4 is an illustration of a table data table, FIG. 5-1 is a diagram showing the intersection of ruled lines, and FIG. 5-2 is text in a cell FIG. 6 is a control flowchart for dividing and marking, FIG. 7 is an explanatory view of a display screen when performing dividing and marking, and FIG. Fig. 8-2 is a diagram showing a display example of the result of performing the divided crease. Fig. 9-1 is a control flow chart of the continuous crease. Fig. 9-2 is a display when the continuous crease is performed. FIG. 10 is an explanatory diagram of a screen, FIG. 10 is an explanatory diagram of a process of performing continuous crease, FIG. 11 is a control flowchart of ruled line erasing, FIG. FIG. 12-2 is a diagram showing a display example of ruled line erasure, FIG. 12-2 is a diagram for explaining the rearrangement of characters in a table set, FIG. 12-3 is a diagram for explaining a text table, FIG. 13 is a control flow chart for ruled line movement; Fig. 14 is an explanatory diagram of horizontal ruled line movement, Fig. 15 is a control flow chart of vertical ruled line movement, Fig. 16 is an explanatory diagram of vertical ruled line movement, Fig. 17 is an explanatory diagram of cell erasing, Fig. 18 is a cell erasing Control flow chart. 4 MPU 3 Display control unit 5 Main memory

Claims (1)

(57) [Claims] A display step of displaying a line segment on a display screen, a designation step of designating a desired line segment from the line segments displayed by the display step, and a position designation step of designating a position on the display screen, When a horizontal line segment is specified in the specifying step, a new ruled line record in which the y coordinate data of the ruled line record describing the specified line segment is replaced with the y coordinate of the position specified in the position specifying step is newly added. To display a line segment passing through the designated position and changing only the y-coordinate of the designated line segment. If a vertical line segment is designated in the designation step, the designated line segment is displayed. By newly creating a ruled line record in which the x-coordinate data of the ruled line record describing the line segment described is replaced with the x-coordinate of the position specified in the position specifying step, the data passes the specified position,
A display control step of performing control to display a line segment in which only the x-coordinate of the specified line segment has been changed.