JP2803779B2 - Character generation method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a character generation method, in particular, a character generation method for changing the size of a character in a handy type word processor or the like, so-called character font. Regarding generator improvements. [Prior Art] Conventionally, as a method for generating a character for arbitrarily changing the character size as described above, a method as shown in FIG. 8 has been used. That is, FIG. 8 is a conceptual diagram showing a conventional character generation method. For example, the character is captured as outline vector data of "stone", and character enlargement and reduction are executed based on the data. It is. [Problems to be Solved by the Invention] However, when the conventional character generation method described above, that is, the character outline vector data and the size of the character is changed, the character surrounded by the vector data There is a problem that it is difficult to determine the necessity of painting on the side. Therefore, the present invention has been made by paying attention to the problems of the related art, and solves the problems, facilitates determination of necessity of painting, and speeds up the generation of characters.
An object of the present invention is to provide a character generation method that can be applied to a multi-font word processor and an electronic publishing system. [Means for Solving the Problems] In order to achieve this object, the character portion generating method according to the present invention converts the character portion and the non-character portion into run-length data in the raster direction. The run-length data constitutes one raster line data, and the run-length data of the character portion is the same and the run-length data of the non-text portion linearly changes when the line data is continuous for three or more lines. Line data other than the first and last lines of each line is omitted, and based on the character data composed of the remaining plurality of line data, the size and inclination of the character is changed to generate an arbitrary character. In the generation method, when the line positions of the adjacent line data in the character data are separated from each other, the enlargement ratio of the line data in the X direction And a line generated by repeating dot development in the X direction and line position increase and decrease in the Y direction according to the inclination is defined as a new line, and the distance between the new lines is multiplied by an enlargement factor in the Y direction to obtain a new line. A distance between new lines, an interpolation line is inserted between each of the new lines, and a change point at which a character portion and a non-character portion of one of the new lines sandwiching the interpolation line is switched to another new line. A change point for switching between the character part and the non-character part is linearly connected in the corresponding order to develop an interpolation change point on the interpolation line, and a character part and a non-character part are provided for each of the interpolation lines. A desired character portion is generated by switching at the interpolation change point. Furthermore, generation of the new line in response to the inclination, it repeating the y _L min line position increase in X direction x _L dots deployment and Y direction at the inclination angle of the character θ becomes tanθ = y _L / x _L It is characterized by. [Function] As described above, by capturing a character as run-length data in the scanning direction, particularly in the raster direction, binarized data that becomes a character portion and a non-character portion, for example, a character is counted by counting "0" and "1". By simply adding a simple calculation, it becomes easy to determine the necessity of filling in the character composition part, and it is easy to generate characters, that is, to change the size and inclination of the characters, and to reduce the speed of character generation. It will be significantly improved. Embodiment Next, an embodiment of the present invention will be described in detail with reference to FIG. 1 to FIG. FIG. 1 is a conceptual diagram of a stage of converting a character into run-length data according to the present invention. According to the character generation method according to the present invention, for example, a kanji character "stone" 1 is run-length in the raster direction. It is assumed that the data is regarded as data 2. The run-length data 2, 2... Are, for example, as shown in the 15 × 15 display conceptual diagram shown in FIG.
The character portion is “1”, and the 15 × 15 outer portion is always a non-character “0”. Further, the run-length data 2 constitutes each line data for each raster direction, and character data serving as a character database is calculated in advance. Here, the configuration of each line data based on the run length data 2, 2... Is 15 (0) for the line data of the first line from the upper part of the character, and becomes F (hex). From the second line to the fourth line, “0” is 4, “1” is 9, and “0” is 2
Since the number of “1” in the character portion is 9 and is the same, the line data on the third line is omitted for data amount compression, and the line data on the second line and the second line (not shown) Distance data Δy = 3 (Δy>) between the line and the fourth line
2) and the fourth line data as the adjacent line data following the second line data. Subsequently, from the fifth line to the eighth line, the character portion is slanted, the number of “1” in the character portion remains unchanged at 3, and the number of “0” is shifted by one. Also in this case, the line data of the sixth and seventh lines are omitted, and the line data of the fifth line and the distance data Δy = 4 between the lines of the fifth and eighth lines (not shown) are obtained. The line data on the eighth line is left as the adjacent line data following the line data on the fifth line. Based on the character data configured in this manner, an arbitrary character having a changed size or inclination is generated. Here, when the size of the kanji character "Ishi" 1 is to be changed without changing the tilt, the X direction is multiplied by n times and the Y direction is multiplied by m at tilt angle θ = 0. Done. Hereinafter, the case where n = 2 and m = 1.25 will be described. First, when the individual run-length data 2.2 in the X direction is doubled for each line of the character data to expand the character portion and the non-character portion, the number of "0" and the number of "1" are obtained. Is doubled. A new line developed in the X direction for each line in this manner is called a new line. Next, data development in the Y direction is performed. When the distance data between the lines is Δy> 2 among the new lines adjacent to each other, for example, Δy = 4 from the fifth line to the eighth line in FIG. Thus, a new distance 5 is obtained. As shown in FIG. 3, the interval between adjacent new lines in Δy is 3, and three interpolation lines for data interpolation are secured. Subsequently, as shown in FIG. 4, a change point at which a character portion and a non-character portion of one new line are switched and a change point of the other new line are linearly connected in the corresponding order, and the data is placed on the interpolation line. Expand interpolation change points. As shown in FIG. 5, each interpolation line is painted from "0" in the X direction, and "0" and "1" are switched at the developed interpolation change point to generate data of the interpolation line. Next, as shown in FIG. 6, in order to incline the kanji character “stone” 1 at an inclination angle θ of, for example, tan θ = 1/5, to double it in the X direction and 1.25 times in the Y direction As described above, the number of line data "0" and the number of "1" are doubled. Next, after developing five dots in the X direction from the data on the left side, the line position is raised by one line in the Y direction, and another five dots are developed in the X direction on the line raised by one line. The line position is raised by one line in the Y direction again, and the above operation is repeated. In this way, the data is developed for each line data to form a new line, and the interpolation change point is developed and the interpolation line data is generated as described above. By generating the data of the interpolation line in this way, a character portion between the separated lines is generated. Here, depending on the enlargement ratio which is n times in the X direction and m times in the Y direction, the number of dot development or the number of interpolation lines may not be an integer in calculation, but this is how the numerical value is processed. For example, there are various methods such as rounding off decimal places, and details are omitted here. FIG. 7 shows a flowchart of the above operation. Referring to FIG. 7, the character generation method according to the present invention will be described in general. The data development of the dot in the direction and the increase / decrease of the line position in the Y direction are returned to generate new line data. Subsequently, the distance between the new lines (Δy) is multiplied by the enlargement factor in the Y direction, and an interpolation line corresponding to the distance between the new lines is opened. The change point of one new line sandwiching the interpolation line and the change point of the other new line are linearly connected in the corresponding order, the change point for interpolation is developed on the interpolation line, and all the change points for interpolation are developed By the way, the interpolation line is filled from "0" in the X direction, and "0" and "1" are switched at the interpolation change point to generate interpolation line data. [Effects of the Invention] As described above, according to the character generation method according to the present invention, a large amount of time is spent on determining whether or not it is necessary to paint a character component when the size of the character is arbitrarily changed as in the related art. Time is not required, and the speed of character generation is increased. In addition, in the enlargement including the inclination of the character, since the pixel is not enlarged in units of one dot, jaggies at the time of enlargement of the pixel, that is, a so-called jagged oblique line are not generally generated. Further, the flow of the operation according to the present invention is not restricted by the enlargement ratio.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram of a stage of converting character into run-length data according to the present invention, FIG. 2 is a conceptual diagram of the display, and FIG. 3 is a conceptual diagram showing a new line state after enlargement. FIG. 4 is a conceptual diagram showing a state in which an interpolation change point is developed, FIG. 5 is a conceptual diagram showing a process of generating interpolation line data, and FIG. 6 is a diagram showing an interpolation change point when a character is inclined. FIG. 7 is a flowchart showing the operation of the present invention, and FIG. 8 is a conceptual diagram showing a conventional character generation method. 1 ... Kanji character 2 ... Run-length data

Claims (1)

(57) [Claims] The character portion and the non-character portion are each converted into run-length data in the raster direction, and the run-length data constitutes one raster line data, and the run-length data of the character portion is the same and the run-length data of the non-character portion is linear. When three or more lines of the line data are changed, line data other than the first and last lines of each of the continuous lines is omitted, and based on character data composed of a plurality of remaining line data, In a character generation method for generating an arbitrary character by changing the character size and inclination, when the line positions of the adjacent line data in the character data are separated, the line data is enlarged in the X direction. Multiplied by the ratio, dot development in the X direction and Y
The line generated by repeating the line position increase and decrease in the direction is defined as a new line, and the distance between the new lines is multiplied by the enlargement factor in the Y direction to obtain a new distance between the new lines. Insertion of an interpolation line, a change point at which a character portion and a non-character portion of the one new line sandwiching the interpolation line and a change point at which a character portion and a non-character portion of the other new line switch. Are linearly connected in the corresponding order to develop an interpolating change point on the interpolation line, and for each of the interpolating lines, switch between a character portion and a non-character portion at the interpolating change point to obtain a desired character portion. The character generation method for the separated line to be generated. 2. The new line produced according to the slope, characterized by repeating the y _L min line position increase in X direction x _L dots deployment and Y direction at the inclination angle of the character θ becomes tanθ = y _L / x _L 2. A method for generating a character portion between spaced lines according to claim 1.