JP3254770B2 - Round character generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a round character generator for generating a round character in which a character font is rounded in a word processor or the like.

[0002]

2. Description of the Related Art Conventionally, in a word processor, there has been known a character transformation device which transforms a character font and outputs it in order to emphasize a part of characters in a document or to obtain a unique and expressive character. I have. This character transformation device, for example,
Tilt the character font to generate "italic characters", or rotate the character font to generate "rotated characters".

[0003]

However, in the conventional character transformation apparatus, the transformation such as "slanting" and "rotation" is extremely simple, and a transformed character which greatly changes the impression of the character is obtained. There was a drawback that it was not possible. SUMMARY OF THE INVENTION An object of the present invention is to make it possible to generate a round character obtained by numerically calculating a round character in which a character is curved and rounded as if looking through a fisheye lens.

[0004]

The means of the first invention is as follows. (1) The character font data storage means is a font memory for storing character font data in which data constituting a character is represented by a coordinate sequence. (2) The angle measuring means expands the character font data read out from the character font data storage means as an output target on an XY plane, and determines an arbitrary point on the Z axis perpendicular to the XY plane as a measuring point. In this case, the angle between each of the coordinate points constituting the character font data and the Z-axis at which the character font data is viewed from this measurement point is determined as first angle data, and the respective characters constituting the character font data from the center of the XY plane are obtained. The angle formed between the coordinate point and the X axis or the Y axis as viewed is determined as second angle data. (3) The coordinate conversion means converts the first and second angle data obtained by the angle measurement means into a polar coordinate system in which the first angle represents a distance from the center, and then expresses the data using the polar coordinates. The given points are converted into XY coordinates. (4) The size conversion means converts the character font data of the XY coordinate system obtained by the coordinate conversion means into a size corresponding to the distance from the center of the XY plane to the measurement point on the Z axis. The means of the second invention is as follows. According to the present invention, there is provided (1) a character font data storage unit,
(2), angle measurement means, (3), coordinate conversion means,
(4) In addition to the size conversion means, the apparatus further comprises (5) a distance designation means. (5) The distance designating means is a key input device or the like for arbitrarily designating the distance from the center of the XY plane to the measurement point on the Z axis.

[0005]

The operation of the means of the first invention is as follows. Now, if an arbitrary character is designated as an output target and it is designated that the character should be transformed into a round character, the angle measuring means reads the character font data read out from the character font data storage means as an XY character. When an arbitrary point on the Z axis perpendicular to the XY plane is defined as a measurement point, the angle formed by each coordinate point constituting the character font data from the measurement point with respect to the Z axis Are obtained as first angle data, and the angle between each of the coordinate points constituting the character font data and the X axis or Y axis as viewed from the center of the XY plane is obtained as second angle data. Next, the coordinate conversion means converts the first and second angle data obtained by the angle measurement means into a polar coordinate system in which the first angle represents the distance from the center, and then expresses the coordinates using the polar coordinates. The obtained points are converted into XY coordinates. Further, the size conversion means converts the character font data of the XY coordinate system obtained by the coordinate conversion means into a size corresponding to the distance from the center of the XY plane to the measurement point on the Z axis. The operation of the means of the second invention is as follows. Now, an arbitrary character is designated as an output target, and that the character is to be transformed into a circle character is designated.
Further, the distance from the center of the XY plane to the measurement point on the Z axis is arbitrarily specified by the distance specifying means. Then, the angle measuring means expands the character font data read out from the character font data storing means as an output target on an XY plane, and sets an arbitrary point on the Z axis perpendicular to the XY plane as a measuring point. In this case, an angle between each of the coordinate points constituting the character font data and the Z axis when the coordinate points constituting the character font data are obtained from the measurement point is obtained as first angle data, and each coordinate point constituting the character font data from the center of the XY plane is obtained. X that saw
An angle between the axis and the Y axis is obtained as second angle data. Next, the coordinate conversion means converts the first and second angle data obtained by the angle measurement means into
After conversion to a polar coordinate system in which the first angle represents the distance from the center, each point represented by the polar coordinates is converted to XY.
Convert to coordinates. Further, the size conversion means converts the character font data of the XY coordinate system obtained by the coordinate conversion means into a size corresponding to the distance from the center of the XY plane to the measurement point on the Z axis. Therefore, it is possible to generate a round character obtained by numerically calculating a round character in which a character is rounded in a curved manner as when looking through a fisheye lens.

[0006]

An embodiment will be described below with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the round character generator.
The outline font data A storage unit 1 is a memory for storing character font data (outline font data) in which data constituting a character is represented by a coordinate sequence.
This character font data is designated as an output target from outside the round character generator and the outline font data A
It is stored in the storage unit 1. The character font data in the outline font data A storage unit 1 is taken into the coordinate conversion device 2 and processed.

The coordinate conversion device 2 converts the character font data read from the outline font data A
When an arbitrary point on the Z axis perpendicular to the XY plane is set as a measurement point on the Y plane, the coordinate point forming the character font data is formed from the measurement point with the Z axis. Each angle (hereinafter referred to as Z angle) is obtained,
An angle between each coordinate point constituting the character font data and the X axis when viewed from the center of the XY plane (hereinafter referred to as X angle)
Respectively. Here, the coordinate conversion device 2 uses the XY
When an arbitrary point on the Z-axis perpendicular to the plane is determined as a measurement point, reference is made to distance data preset in the distance register 3 and a measurement point is set on the Z-axis according to the distance data. . The distance data in the distance register 3 is arbitrarily set by the user from the outside of the character generator by key operation or the like.

The coordinate conversion device 2 converts the Z angle and the X angle obtained as described above into a polar coordinate system in which the Z angle represents an angle from the center, and then converts each coordinate represented by the polar coordinates. The points are converted into XY coordinate values and given to the normalization proportional calculator 4. On the other hand, the coordinate conversion device 2 provides the corner storage unit 5 with the coordinates of the four corners corresponding to the character frame after the coordinate conversion as described above.

The normalizing proportional calculator 4 comprises a corner coordinate generator 6
Is compared with the corner coordinates stored in the corner point storage unit 5 and a magnification is determined so that the two coincide with each other. The coordinate value is multiplied, and the result is written in the outline font data B storage 7. The corner coordinate generator 6
Generates coordinates of the four corners corresponding to the frame of the original character font stored in the outline font data A storage unit 1.

The outline font data B storage unit 7 stores character font data after being transformed into round characters. This character font data is stored in an output device (display device or printing device) external to the round character generating device. Is sent to and output.

Next, the operation of this embodiment will be described. First,
The user specifies any character as the output target,
When it is specified that the character should be transformed into a round character, the specified character font data is stored in the outline font data A storage unit 1. When the user inputs and designates distance data indicating how much rounded characters should be transformed, the inputted and designated distance data is stored in the distance register 3.

In this state, the coordinate conversion device 2 and the normalizing proportional calculator 4 operate in accordance with a start command from outside the round character generator, and the degree of deformation corresponding to the distance data set in the distance register 3. Then, the character font data in the outline font data A storage unit 1 is transformed into a round character and written into the outline font data B storage unit 7.

That is, first, the coordinate conversion device 2 operates as follows. Here, FIG. 2 shows a coordinate system used when the coordinate conversion device 2 performs coordinate calculation. Now
The character font data in the outline font data A storage unit 1 is developed on an XY plane, and a Z axis is provided in a direction passing through the center of the XY plane and perpendicular to the XY plane. A point away from the center by the distance set in the distance register 3 is assumed to be a measurement point. In this case, the center of the character font data on the XY plane is at the origin (X = 0, Y = 0) of the XY plane, and the four corners of the frame in which this character font fits are set so that the distances from the origin are equal. The angle formed by the corner point from the measurement point on the Z axis and the Z axis is represented by 表 わ.

Here, the coordinate conversion device 2 assumes that each coordinate point constituting the character font data in the outline font data A storage unit 1 is viewed from a measurement point on the Z axis.
The angle θ between the Z axis and the X axis is determined, and the angle α between the X axis and each coordinate point forming the character font data is calculated from the center of the XY plane.

The angle θ formed with the Z axis thus obtained
And the X-axis are rearranged in the coordinate system shown in FIG. This coordinate system is represented by polar coordinates, and the angle θ represents the distance from the center of the coordinate system. Note that θ = 45 °
In this coordinate system, the character frame has a size of about 96 × 96 dots and θ = 30 ° has a size of about ／ (96 × 96) dots. Are provided, and the coordinate conversion device 2 converts each point represented by polar coordinates into X
Convert to Y coordinate value. This XY coordinate value is used as the coordinate conversion device 2
And is sent to the next normalization proportional calculator 4.

Then, the normalizing proportional calculator 4 calculates the original character font size based on the corner coordinates generated from the corner coordinate generator 6 and the corner coordinates stored in the corner storage unit 5. Make changes. Here, for example, when looking into the fisheye lens, a far image is small and a near image is large, which means that the size of the character changes depending on the deformation ratio. The normalizing proportional calculator 4 and the corner coordinate generator 6 solve this problem.

That is, the corner coordinate generator 6 generates the corner coordinates of the four corners of the frame in which the original character font is accommodated. It is stored in the point storage unit 5. Then, the normalizing proportional calculator 4 compares the corner coordinates generated by the corner coordinate generation unit 6 with the corner coordinates stored in the corner storage unit 5, and the two corner coordinate values match. By multiplying the magnification by the XY coordinate value converted by the coordinate conversion device 2, the diagonal length is the same as that of the original character font. No deformed characters can be obtained. In this case, the height and width of the character are expanded, and the overall size is increased.

As a result, a circle character font transformed into a circle character is generated in the outline font data B storage unit 7. The round character font in the outline font data B storage unit 7 is sent to an output device for display output or print output. Here, an example of outputting the original character font (one kanji character “country”) when no round character deformation is designated is shown. In contrast, FIG. 5 shows the original character font shown in FIG.
An output example of a round character font generated when an image to be transformed into an image that can be seen when looking through a fisheye lens at a distance of m is specified. FIG. 6 shows a circular character font generated when specifying that the original character font shown in FIG. 4 should be transformed into an image that can be seen when looking through a fisheye lens at a distance of 54 mm from the paper surface. An output example is shown. In this case, the circular character font shown in FIG. 6 is greatly deformed compared to the circular character font of FIG.

In the above output example, a case where one kanji character is transformed into a round character is shown. However, if character font data for two characters is stored in the outline font data A storage unit 1 at the same time, It is possible to generate two round character fonts at the same time. Here, FIG. 7 shows an example in which no round character deformation is specified, that is, an output example of the original character font (two kanji characters “Fukusho”). On the other hand, FIG. 8 shows two characters generated when the original character font shown in FIG. 7 is specified to be transformed into an image that can be seen when looking at the fisheye lens at a distance of 78 mm from the paper surface. An output example of a round character font is shown. FIG. 9 shows the original character font shown in FIG.
An output example of a two-character round character font generated when it is specified that the image should be transformed into an image that can be seen when looking through a fisheye lens at a distance of 2 mm.

Further, the present invention is not limited to the case where two character fonts are simultaneously transformed into round characters, and three or more character fonts may be simultaneously transformed into round characters.

In the above-described embodiment, the normalizing proportional calculator 4 calculates a magnification from the coordinate conversion device 2 such that the coordinates in the corner point storage unit 5 match the coordinates generated by the corner point coordinate generator 6. By multiplying the XY coordinate values, it is possible to obtain a round character whose size does not change from the original character font,
In this case, since the height and width of the character are widened and increased as a whole, for example, if the coordinates generated by the corner coordinate generator 6 are set at the center of the upper side of the character frame, the height can be made constant.
In this case, the four corners tend to shrink and become smaller overall.

[0022]

According to the present invention, it is possible to generate a round character obtained by numerically calculating a round character in which a character is curved and round as if looking through a fish-eye lens, thereby obtaining a smooth and expressive round character. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a block configuration diagram of a round character generation device according to an embodiment.

FIG. 2 is a diagram showing a coordinate system for calculation used by a coordinate conversion device 2.

FIG. 3 is a diagram showing a coordinate system used when generating a round character.

FIG. 4 is a diagram showing an output example of a character font (original character font) when no deformation is specified;

FIG. 5 is a diagram showing an output example of a round character font when the original character font shown in FIG. 4 is deformed to some extent.

6 is a diagram showing an output example of a round character font when the original character font shown in FIG. 4 is greatly deformed.

FIG. 7 is a diagram illustrating an output example of a character font (original character font) when no deformation is specified;

FIG. 8 is a diagram showing an output example of a round character font when the original character font shown in FIG. 7 is simultaneously deformed to some extent by two characters;

FIG. 9 is a diagram showing an output example of a round character font when the original character font shown in FIG. 7 is greatly deformed at the same time for two characters.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outline font data A storage unit 2 Coordinate conversion device 3 Distance register 4 Normalization proportional calculator 5 Corner storage unit 6 Corner coordinate generator 7 Outline font data B storage unit

Claims (2)

(57) [Claims] 1. A character font data storage means for storing character font data in which data constituting a character is represented by a coordinate sequence, and character font data read out from the character font data storage means as an output target. When an arbitrary point on the Z axis perpendicular to the XY plane is set as a measurement point on the XY plane, the coordinate points forming the character font data are formed from the measurement point with the Z axis. Angle measuring means for determining each angle as first angle data, and determining each angle between the X axis or the Y axis as viewed from each coordinate point constituting the character font data from the center of the XY plane as second angle data. After converting the first and second angle data obtained by the angle measuring means into a polar coordinate system in which the first angle represents a distance from the center, Coordinate conversion means for converting each point represented by polar coordinates into XY coordinates; and character font data in the XY coordinate system obtained by the coordinate conversion means in a distance from the center of the XY plane to a measurement point on the Z axis. And a size converting means for converting the size to a corresponding size. And a distance designating means for arbitrarily designating a distance from a center of the XY plane to a measurement point on a Z axis.
2. The round character generating device according to claim 1, wherein the degree of deformation of the round character is changed according to the distance specified by the distance specifying means.