JPH0324338B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a phototypesetting machine that can easily print characters arranged in a circular manner.

Conventionally, in order to obtain a printed matter in which characters are arranged in a circle as shown in Figure 1 A and B using a phototypesetting machine, for example, a sensitive material on which characters are printed in a straight line is cut out and pasted in a circle. I had to take such a method.

Not only is this process extremely complicated and time-consuming, but it also requires a high degree of skill to paste the cut-out photosensitive material into a circular shape, and it may only be possible for people with specific skills to do so. It was hot.

In addition, methods for creating circular printed matter such as Japanese Patent Publication No. 39-5525 and Japanese Patent Application Laid-open No. 56-4461 are known, but both require special magazines and cannot be used with ordinary photographs. It was difficult to obtain circular prints with typesetting machines.

In view of the above, an object of the present invention is to provide a phototypesetting machine that allows anyone to easily print a printed matter such as that shown in FIG. circular printing selection means for selecting and commanding circular printing with outer circumference alignment, inner circumference alignment, and center alignment with respect to the circumference; center coordinate input means for inputting the center coordinates of the circumference on which circular printing is to be performed; and start position coordinates of circular printing. a printing start position coordinate input means for inputting; a storage means for updating a stored value in the print position coordinates each time one character is printed; a feeding direction selection means for inputting a feeding direction for circular printing; and photographing by a phototypesetting machine. an image rotation prism installed in the optical system and rotated by an arbitrary angle in response to instructions from an image rotation selection means;
When circular printing is commanded and a printing command is received, the circumference of a predetermined radius is calculated from the input center coordinates and printing start position coordinates, and the characters to be printed are determined according to the type of circular printing selected by the circular printing selection means. Information on various lenses set in the photographing optical system, the inputted type of circular printing, and the storage means determine the amount of solid feed to a printing position where one point of adjacent virtual bodies are in contact with each other along the circumference. When printing the content, feeding direction, and first character, there is also an arithmetic circuit that calculates from the print start position coordinates; and according to the calculation results of this arithmetic circuit, the image forming point of the photographing optical system is set on the X-axis and Y-axis. a feed control unit that changes the relative position of the photosensitive material and the imaging point to a printing position; the calculation circuit separately calculates a rotation angle of the image rotation prism according to the printing position calculated by the calculation circuit; death,
The present invention also includes an image rotation control section that rotates an image rotation prism so that an angle of a character image is obtained according to a printing position.

Embodiments of the present invention will be described in detail below with reference to the drawings.

First, circular printing will be explained. In the circle of radius r shown in FIG. 2, the relationship between the angle θ (radian) and the length l of the circular arc corresponding to the angle θ is expressed as θ (radian)=l/r (1).

Further, the relationship between X, Y, r, and θ in polar coordinates is as follows.

X=r cosθ Y=r sinθ ...(2) Therefore, in Figure 3, the center coordinates of the circle are (Xc,
Yc), coordinates of B (X ₂ , Y ₂ ) when radius is r
is, X ₂ =Xc+{r cos(π+θ)} Y ₂ =Yc+{r sin(π+θ)} (3).

Therefore, once the center coordinates of the circular print, the radius of the circle, the start coordinates of the circular print, the amount of feed in the circumferential direction and its direction, etc., are determined, the amount of feed in the X and Y axis directions can be determined by calculation, and the feed amount in the X and Y axis directions as shown in Figure 1. It is possible to find the angle of image rotation in the case of a printing form such as B with respect to A.

That is, in Fig. 3, the coordinates of the printing start position are A.
(X ₁ , Y ₁ ), and if the feed amount in the circumferential direction per character is l, the feed amount in the X-axis and Y-axis directions to the next printing position is: X _P = X ₂ − X ₁ Y _P = Y ₂ − Y ₁ ...(4).

Therefore, as shown in Fig. 3, if you want to first print at position A and then at position B, if you determine the feed amount l in the circumferential direction and the radius of curvature r, you can print on polar coordinates using equation (1). The angle θ to be rotated from A to B is
is found. This θ and the center coordinates of the circle (Xc, Yc),
By substituting the values of radius r and radius r into equation (3), the coordinates of B (X ₂ , Y ₂ ) can be found, and by entering these values into equation (4), the feed amount in the X and Y _axis directions can be calculated. _P can be calculated.

The present invention is based on the above-mentioned principles, and is based on the following principles: the center coordinates of circular printing, the starting position coordinates of circular printing, the amount of feed in the circumferential direction and its direction, whether or not the image rotation prism is rotated, and the type of alignment set for circular printing. It is characterized by performing circular printing by setting etc.

FIG. 4 shows an embodiment of a phototypesetting machine according to the present invention, where 40 is a light source, 41 is a dial, and 42 is a main lens that determines the size of the characters (Q number), which is composed of a zoom lens. Good too. Reference numeral 43 denotes an image rotation prism for rotating a character image, which rotates by an arbitrary angle in response to an instruction from image rotation selection means 57d, which will be described later. 44 is a deforming lens for deforming characters. 45 is a reflecting mirror, 46 is a half mirror, and these two components may be prisms. Further, the image rotating prism 43 may be installed between the reflecting mirror 45 and the half mirror 46. 47 is a photosensitive material, and these components 40 to 47 are common to general phototypesetting machines, and are not limited to those shown.

48 is an image pickup tube; 49 is a deformable lens control unit that positions a desired deformable lens in the optical axis and also has a drive source for giving a predetermined rotation angle to the positioned desired deformable lens 44; 50 is an image rotation unit; An image rotation control unit having a drive source for rotating the prism 43 rotates the image rotation prism 43 according to the calculation result of the arithmetic circuit 52, and performs control to rotate the character image by a required amount. 5
1 includes a driving source for driving a lens turret or zoom lens that accommodates main lenses 42 of various magnifications, and positions a desired Q number of main lenses in the optical path; 52 a main lens control unit in the X and Y axis directions; When the feed amount or circular printing is commanded, the image rotation prism 43
An arithmetic circuit 53 calculates the rotation angle of the CRT 56
54 is a photosensitive material 47;
The feed control unit includes a feed device that moves the travel optical system (not shown), etc., and controls the feed in the X and Y axis directions associated with printing. Change the relative position with the photosensitive material.
Reference numeral 55 denotes a control circuit for controlling each of the above-mentioned circuits, etc., and has a storage means therein. 56 is CRT, 57
is a printing command input means 57a on a setting control console, and a lens magnification selection means 5 for selecting a main lens of a desired magnification.
7b, a deformation lens selection means 57c for selecting a deformation lens, setting an inclination angle, etc., and an image rotation selection means 57 for instructing whether or not to perform image rotation of characters.
d. Circular printing selection means 57e for commanding circular printing; means 57 for selecting the feeding direction of circular printing;
f. Coordinate input means 57g consisting of a center coordinate input means 57gc for inputting the center coordinates of circular print and a print start position coordinate input means 57gs for inputting the start position coordinates of circular print; circumferential alignment for selecting an alignment set for circular print; A selection means 57h, a means 57i for selecting and instructing vertical or horizontal writing, and the like are provided.

Each command selected and set from each of these means 57a to 57i, the result of calculation by the arithmetic circuit 52, etc. are stored in the storage means in the control circuit 55.

In the phototypesetting machine configured as described above, when performing normal printing, the lens magnification selection means 5 is first selected.
7b and the deformable lens selection means 57c to select the lens magnification and shape, and use the vertical/horizontal selection means 57i to specify whether to write vertically or horizontally. Then, the dial 41 is moved back and forth and left and right to position the desired character at the optical axis position P of the photographing optical system, and the print command input means 57a on the setting control console 57 is operated. Then, the selected character image on the dial 41 is displayed on the main lens 42 or the deformable lens 44.
The image is changed into a desired size and shape by the mirror 45, and then an image is formed on the photosensitive material 47 by opening and closing a shutter (not shown). Then, the control circuit 55
In the case of a solid set, the arithmetic circuit 52 calculates the feed amount based on lens information from the main lens control section 51 and the deformable lens control section 49, and sends it to the feed control section 54 to perform a predetermined feed. Thereafter, similar operations are performed to create a predetermined printed matter.

In addition, if you want to see the characters to be printed, their sizes, or the relationship between the characters before and after the characters before printing, image the characters with the image pickup tube 48, send the signal to the video signal processing circuit 53, and display the image on the CRT 56. Take it out and check. The video signal processing circuit 53 has an internal memory for storing captured images, but the entire circuit is generally well known, and the details are omitted.

Figures 5A to 5D show examples of circular printing where printing starts from various positions, and the arrows in the figures indicate the direction in which the printing advances as instructed by the feed direction selection means 57f of the setting control console 57. The numbers inside indicate the printing order and character orientation. In other words, it indicates the starting position of circular printing.

According to the present invention, circular printing can be started from any position as shown in the figure.

Generally, in most circular prints, the orientation of the characters is perpendicular to the circumferential direction as shown in Figure 1B, but this can be achieved by rotating the image rotation prism 43 by a predetermined angle. .

Further, when the posture of the characters is constant as shown in FIG. 1A, it is not necessary to rotate the image rotating prism 43. Therefore, whether to choose A or B in this Figure 1 is as follows.
This is carried out by issuing a command from the image rotation selection means 57d in the setting control console 57 described in FIG. 4 and giving an on/off command to the image rotation control section 50.

Next, a printing method for such circular printing will be explained. Figure 6A shows that when performing circular printing as shown in Figure 1B, after printing at position A, the feed amount l in the circumferential direction is equal to the length IB of one side of the virtual body, and then the next printing is performed. It represents the result of printing a character at position B (here, the virtual body refers to the range shown by the solid line in the example of character pattern 70 shown in Figure 7, and in terms of printing, it is the body). This is also an example in which the center of the virtual body coincides with the circumference of the radius r.

In this way, the feed amount l is the length of one side of the virtual body.
The method of setting IB equal to IB is called solid printing in normal vertical or horizontal linear printing, but in the case of circular printing, if solid printing is performed using the center of the virtual body as the reference for the feed amount, as shown in Figure 6. As shown by diagonal lines in A, an overlapping portion of the virtual bodies occurs. Therefore, depending on the type of character, the printed character may overlap with the previously printed character.

Therefore, in order to prevent this, the amount of feed in the circumferential direction must be increased by an appropriate amount over IB. A method for calculating the feed amount at this time will be explained next.

To prevent the virtual bodies from overlapping as shown in the shaded area in Figure 6A and print as shown in Figure 6B, point N on the virtual body should overlap N' as shown in Figure 6B. This can be achieved by rotating around point 0.

The rotation angle θ' at this time is calculated as follows, for example. Here, the rotation angle θ' will be considered separately into θ _A ′ and θ _B ′ as shown in the figure.

In Figure 6 B, right triangle OPN and
If we look at OPN′, we have the following relationship: =√ ² + ² =√′ ² +′ ² ……(5). Also, for each right triangle, the relationship sinθ _A ′= sinθ _B ′=′ holds true, and from this, θ _A ′=sin ^-1 (/OP) ……(6) θ _B ′=sin ^-1 (′/ OP) ...(7) becomes. Substituting equation (5) into equations (6) and (7), we get becomes. Here, and ′ are half the length of one side of the virtual body, that is, IB/2, and
ON,' is the radius r minus IB/2, so equations (8) and (9) are It is expressed as In the end, the desired rotation angle θ' can be found by substituting the values of equations (10) and (11) into θ'=θ _A ′+θ _B ′ (12). By executing the calculation of equation (3) above based on this rotation angle θ', the center coordinates (X _C , Y _C ) of the circle, and the radius r, the coordinates of the next printing position (i.e., The coordinates of B) are determined, and by entering this value into equation (4), the amount of feed in the X and Y axis directions for solid printing in circular printing is calculated.
X _P and Y _P are calculated.

Figure 8 shows an example of character composition in which the bottom or top edge of a character is aligned with an arc C in circular printing.Figure 8A shows alignment on the outer circumference of the circle, and Figure 8B shows alignment on the inner circumference of the circle. . This is done by switching between outer circumference alignment and inner circumference alignment using the circumferential alignment selection means 57h shown in FIG. will be printed centered along the .

The calculation method in such a case is almost the same as the case of center alignment in Figure 6, but when aligning the outer circumference, add IB/2 of the virtual body to the radius r, and when aligning the inner circumference, add IB/2. It is sufficient to subtract .

Next, referring to FIG. 9, a case will be explained in which the size of the characters (Q number) is not constant and solid feeding is performed in which the virtual bodies do not overlap.

As shown in Figure 9A, in the case of outer alignment in which the bottom edge of the letters is aligned with the arc _C1 of radius _R1 , and when printing small letters next to large letters as shown in the figure, or vice versa. Even in this case, there are parts like point P where the virtual bodies touch each other. Therefore, considering the right triangles OPN and OPN', θ _A ',
Since θ _B ′ is determined, the rotation angle θ′ can be calculated. The method for calculating the rotation angle θ' will be specifically explained below.

If we look at the right triangles OPN and OPN' in Figure 9A, there is a relationship as follows: =√ ² + ² ...(13). Also, for each triangle, the relationship sinθ _A ′= sinθ _B ′=′ holds true, and from this, θ _A ′=sin ^-1 (/OP) ……(14) θ _B ′=sin ^-1 (′/ OP)...(15) becomes. Substituting equation (13) into equations (14) and (15), we get becomes. Here, and ' are half the length of one side of the virtual body of the character printed at each position, that is, IBa/2 and IBb/2, respectively.
Since ON is the radius R ₁ of the arc C ₁ , equations (16) and (17) are In the end, the desired rotation angle θ' can be obtained by substituting the values of equations (18) and (19) into θ'=θ _A ′+θ _B ′.

This rotation angle θ′, the center of the circle (X _C , Y _C ), and the radius
When formula (3) is executed based on R ₁ , the coordinates of the next printing position B (X ₂ , Y ₂ ) are: X ₂ =X _C +(R ₁ +IBb/2)cos(π+θ') Y ₂ = Y _C + (R ₁ + IBb/2) sin (π + θ'). In the following, the feed amounts X _P and Y _P in the X and Y axis directions can be determined in the same manner as in the case of feeding the circular print shown in FIG. 6 described above.

Next, alignment of the inner circumference of characters will be explained. 9th
As shown in Figure B, in the case of inner circumference alignment in which the top edge of the characters is aligned with the arc C ₂ of radius R ₂ , the feed _amount in the X and Y axis directions
_YP can be calculated. The method for calculating the rotation angle θ' will be specifically explained below.

If we look at the right triangles OPN and OPN′ in Figure 9B, we find the relationship =√′ ² +′ ² ……(20). Also, for each triangle, the relationship sinθ _A ′= sinθ _B ′=′ holds true, and from this, θ _A ′=sin ^-1 (/OP) ……(21) θ _B ′=sin ^-1 (′/ OP)...(22) becomes. Substituting equation (20) into equations (21) and (22), we get becomes. Here, and ' are IBa/2 and IBb/2, respectively, as described above, and ' is the radius R ₂ of the arc C ₂ minus IBb. Therefore, equations (23) and (24) are Therefore, the desired rotation angle θ' can be obtained by substituting the values of equations (25) and (26) into θ'=θ _A ′+θ _B ′.

This rotation angle θ′, the center of the circle (X _C , Y _C ), and the radius
When formula (3 ₎ is executed based on R ₂ , the coordinates of the next printing position _B (X ₂ , _{Y 2} ) are: ₂ = Y _C + (R ₂ − IBb/2) sin (π + θ′). In the following, the feed amounts X _P and Y _P in the X and Y axis directions can be determined in the same manner as in the case of feeding the circular print shown in FIG. 6 described above.

In addition, when calculating from the two right triangles OPN and OPN' with the outer and inner periphery alignment explained above, from the triangle OPN when the outer periphery is aligned, and from the triangle OPN when the inner periphery is aligned,
It was calculated from OPN', but this is determined by whether the next character to be printed is larger or smaller than the previously printed character.If the character size is opposite to the one explained here, the other triangle OPN' The difference will be calculated.

Next, with the circular printing explained using Figs. 6, 8, and 9, as shown in Fig. 6 (b) and Fig. 8, the same size is printed solidly in the clockwise direction in its original form (not deformed). Perform image rotation as shown in Figure 1B,
The operation of the phototypesetting machine of the present invention will be described as an example of center alignment in which the center of the virtual body is aligned with a circular arc.

Introduction Circular print selection means 5 of setting control console 57
Operate 7e to issue a circular print command. Next, if you want to select the main lens of the desired Q number (character size) using the lens magnification selection means 57b and transform the character,
The deformed lens selection means 57c is selected.

Next, the image rotation selection means 57d is operated to issue a command to print characters perpendicular to the circumferential direction.

Furthermore, a command to print in a clockwise direction is issued using the feed direction selection means 57f. In this example, since center alignment is performed, the circumferential alignment selection means 57h is not operated. Each of these command images is sent to the control circuit 55 and stored in its storage means.

After completing the above preparations, the coordinate input means 57
The center coordinates of the circular print are input using the center coordinate input means 57gc of g. This results in (X _C , Y _C )
is set as the center. Next, use the circular print start position coordinate input means 57gs to input the print start position coordinate A.
Input (X ₁ , Y ₁ ).

Then, the signal is sent from the control circuit 55 to the arithmetic circuit 5.
2 to the feed control unit 54, and the image forming point of the photographing optical system on the photosensitive material 47 is set at the set printing start position A.
(X ₁ , Y ₁ ), thereby setting the starting position of circular printing.

Once the printing start position A (X ₁ , Y ₁ ) is set, the desired character on the dial is positioned at the printing position P, and the first character is printed using the printing command input means 57a. Then, the control circuit 55 sends each information that has already been commanded to the arithmetic circuit 52, and the image rotation prism 43
rotation amount and feed amount to the next printing position (X _P , Y _P )
etc., are calculated.

Specifically, the input center coordinates (X _C , Y _C )
The circumference of a predetermined radius is calculated from the printing start position coordinates A (X ₁ , Y ₁ ), and the next printing position B (X ₂ , Y 1 ) on the circumference is calculated.
The solid feed amount (X _P , Y _P ) up to Y ₂ ) is as described above (3)
It is determined by the calculation explained in equation (12). Of course, in this case, various lens information set in the photographic optical system is used.

Next, the calculated feed amount (X _P , Y _P ) is sent to the feed control unit 54, which moves the image forming point on the photosensitive material 47 by (X _P , Y _P ) to the next printing position. B(X ₂ ,
One point on the virtual body of the character printed on Y ₂ ) is A.
Prepare the characters so that they are placed in contact with the virtual body of the characters printed at (X ₁ , Y ₁ ).

When B (X ₂ , Y ₂ ) is moved in this way, the print start position coordinates A (X ₁ , Y ₁ ) stored in the storage means in the control circuit 55 are also updated to B (X ₂ , Y ₂ ). be done.
Thereafter, the stored value of the print position coordinates is updated every time one character is printed.

On the other hand, information on the rotation angle θ' determined in the process of calculating the feed amount to the next printing position by the arithmetic circuit 52 is sent to the image rotation control section 50. The image rotation control unit 50 is
The image rotating prism 43 is rotated so that the characters printed on B (X ₂ , Y ₂ ) are rotated by an angle θ' from the characters printed on A (X ₁ , Y ₁ ).

As is well known, the rotation angle of the image rotation prism 43 at this time varies depending on the type of prism. For example, in the case of a single reflection type image rotation prism as shown in _{FIG .} By rotating the character image by θ'/2 to the right from the state when it is printed, a character image rotated by a desired angle θ' can be obtained.

As explained above, the feed amount and character rotation angle to the next printing position are calculated and obtained in sequence, the image formation position on the photosensitive material 47 is moved according to the calculated values, and the image rotation prism is rotated. If printing is performed, for example, circular printing as shown in FIG. 1B can be performed.

Although the above explanation has been based on the embodiments of the present invention, it is not only possible to form characters on a circle centered at one point, but also to form characters on an oval, such as on a track for track and field. In addition to changing the size of characters using the main lens, by combining various deforming lenses, various deformed characters such as plain characters, long characters, italic characters, etc. can be printed in the various forms mentioned above. Is possible.

As described above, the phototypesetting machine according to the present invention has a simple structure and can easily perform circular printing, which conventionally relied on cutting and pasting, and has a very large effect.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an example of circular printing, Fig. 2 is an explanatory diagram of polar coordinates, Fig. 3 is an illustration of printing coordinates in circular printing, and Fig. 4 is an illustration of a phototypesetting machine of the present invention. A schematic diagram of the embodiment, FIG. 5 is a diagram showing various examples of circular printing, FIG. 6 is a diagram explaining solid feeding in circular printing in FIG. FIG. 8 is a diagram illustrating circumferential alignment of characters in circular printing, and FIG. 9 is a diagram illustrating circular printing of different sizes. 41...Dial, 42...Main lens, 43...
Image rotation prism, 44...Deformation lens, 45...
Reflector, 46... Half mirror, 47... Sensitive material,
48... Image pickup tube, 49... Deformation control unit, 50...
Image rotation control section, 51...Main lens control section, 52...
...Arithmetic circuit, 53...Video signal processing circuit, 54...
...Feed control section, 55... Control circuit, 56...
CRT, 57...setting control console.

Claims (1)

[Claims] 1. Alignment of the outer circumference, alignment of the inner circumference with respect to the set circumference,
A circular print selection means for selecting and commanding center-aligned circular printing; a center coordinate input means for inputting the center coordinates of the circumference for circular printing; and a print start position coordinate input means for inputting the start position coordinates of the circular print. , a storage means for updating a stored value in the print position coordinates for each character printed, a feeding direction selection means for inputting the feeding direction of circular printing, and an image rotation selection device installed in the photographing optical system of the phototypesetting machine. An image rotating prism that rotates at an arbitrary angle in response to an instruction from the means, and when circular printing is commanded and a printing command is received, the circumference of a predetermined radius is calculated from the input center coordinates and printing start position coordinates, and a circular According to the type of circular printing selected by the printing selection means, the solid feed amount set in the photographing optical system is set in the photographing optical system so that the printed characters touch one point of adjacent virtual bodies along the circumference. an arithmetic circuit that further calculates from the lens information, the type of the input circular print, the contents of the storage means, the feeding direction, and the printing start position coordinates when printing the first character; and the calculation result of this arithmetic circuit. a feed control section that feeds the imaging point of the photographic optical system in the X-axis and Y-axis directions and changes the relative position of the photosensitive material and the imaging point to a printing position according to the printing position calculated by the arithmetic circuit; an image rotation control section that separately calculates a rotation angle of the image rotation prism by the calculation circuit and rotates the image rotation prism so that an angle of a character image corresponding to a printing position is obtained; A phototypesetting machine characterized in that printing is performed after the image forming point is fed in the X-axis and Y-axis directions and the image rotation prism is rotated.