JPH02123356A - Magnification and angle output device - Google Patents

Abstract

PURPOSE:To always calculate and output a magnification, an angle, trimming, etc., of a document by providing a position data calculating means for calculating position data of a desired measuring point, based on position data on a reduced projection image. CONSTITUTION:The title device is constituted of a magnification measuring machine 10, a digitizer 20 being a position data input means, a computer 30 being an operation control means and a position data calculating means, a floppy disk being an auxiliary storage means, an XY plotter and a display 60. In this state, when an allocation graphic exceeds an effective range of the input means 20 of position data, first of all, position data of an arbitrary base point D of a projection image 80 is inputted in a state that the projection image 80 is allowed to coincide with the allocation graphic of an allocation designated paper 90 or a block copy by using the input means 20. Subsequently, the projection image 80 is reduced and position data corresponding to the arbitrary base point D and a desired measuring point C to be derived, respective ly are inputted, and from these inputted position data and magnification data obtained by the magnification measuring means 10, the position data calculating means 30 calculates automatically the position data of the desired measuring point C. In such a way, a magnification, an angle, trimming, etc., can be calculated and outputted.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to a projection image that is matched to the layout figure of a layout sheet or a block copy, and whose size exceeds the effective range of a digitizer that is a means for inputting position data. The present invention relates to a magnification angle adjusting device that can be used in various cases.

<Prior Art> Conventionally, a color scanner, which is an apparatus that automatically performs plate making for color printing from photographic film or other original documents, has been known.

When performing plate making using such a color scanner, the inclination angle, magnification, trimming, etc. of the original are calculated in advance, and the above original is attached to the drum by an angle corresponding to the above-mentioned inclination angle, and the magnification is adjusted. , cropping, etc. must be input into this color scanner.

Conventionally, in order to determine the magnification and rotation angle of such an original in advance, the original was first placed on a designated sheet of paper, the rotation angle of this original was determined using a ruler, etc., and the image of this original was projected. The image was projected onto a designated sheet of paper using a machine, and the projected image was matched with the area of the screen designated on the designated sheet of layout, and the magnification of this document was calculated from the above distance and the focal length of the lens in this state.

However, such conventional methods require a large amount of manual work, are inefficient, and have low accuracy.

Therefore, a "document angle and magnification setting device for color scanner" has been proposed, for example, as disclosed in Japanese Patent Application Laid-open No. 189471/1983. In other words, the layout paper is placed on the digitizing surface, the image of the original is projected onto the layout designation paper using a magnification measuring device, the projected image is matched with the layout design specified on the layout designation paper, and then input. This is a device that automatically calculates and outputs magnification, angle, trimming, etc. by digitizing power points with a digitizer.

<Problems to be Solved by the Invention> However, the above-mentioned apparatus has a problem in that it cannot cope with cases where the size of the designated layout figure on the layout designation sheet exceeds the input effective range of the digitizer.

In the present invention, a document is set on a document projection mechanism, the document projection mechanism projects the document onto the upper surface of a digitizer, and when the projected image matches the layout figure on the layout designated sheet, the projected image exceeds the effective range of the digitizer. It is an object of the present invention to provide a device that can calculate and output the magnification, angle, trimming, etc. of a document even in the case of a document.

Means for Solving the Problems> The present invention has been made to solve the above problems, and includes a magnification measuring means for projecting a manuscript onto designated layout paper or a block and outputting magnification data; or an input means for inputting the reference line of the printing plate and the position data of the projected image, and data on the original pasting angle and the trimming range based on the magnification data obtained from the magnification measuring means and the position data obtained from the input means. In a magnification angle determining device that is composed of an arithmetic control means for calculating and an output means for outputting the result calculated by this arithmetic control means, the magnification angle obtained when the projected image is made to match the layout designation paper or the layout figure of the block copy. magnification data and position data of an arbitrary base point on the projected image, magnification data obtained when this projected image is reduced to a desired size, and this reduced projection corresponding to the arbitrary base point and desired measurement point, respectively. This is a magnification angle determining device characterized by being provided with position data calculation means for calculating position data of a desired measurement point based on position data on an image.

Since the magnification angle determining device of the present invention is provided with a position data calculation means, even if the layout figure exceeds the effective range of the position data input means, the projected image is first transferred to the layout designated paper using the input means. Alternatively, input the position data of an arbitrary base point of the projected image while matching the layout figure of the block, and then reduce the projected image and position data corresponding to the arbitrary base point and the desired measurement point you want to find. By inputting , the position data calculation means automatically calculates the position data of the desired measurement point from the input position data and the magnification data obtained by the magnification measurement means.

<Example> The present invention will be explained in detail using examples.

The device of the present invention is a magnification measuring device (10) which is a magnification measuring means.
and a digitizer (20) as a position data input means.
, a computer (30) which is an arithmetic control means and a position data calculation means, a floppy disk (40) which is an auxiliary storage means, an XY printer (50) which is an output means,
It consists of a display (60).

The magnification measuring machine (10) is a support ( 14) so as to be movable up and down, and below it is provided a workbench (15) on which a designated layout sheet or a block copy is placed and on which an enlarged/reduced image of the photographic manuscript is projected. It also includes a display (16) that displays magnification and the like. Please note that this workbench (
15) also serves as a digitizer (20), which will be described later. Furthermore, this magnification measuring device (10) is used to measure the layout designation on the layout designation paper or the layout design placed on the workbench (15) (in the case of layout design, the layout design is something that cannot be photographed even if the camera is too close to the layout). It is possible to align the projected images by moving the integrated document holder (11), lens (12), and light source box (13) up and down with respect to the distance shown in the picture. A linear encoder for measuring the linear encoder and an arithmetic processing means for calculating a magnification based on the data output from the linear encoder are provided.

Note that such a magnification measuring device is well known.

The digitizer (20) has the above-mentioned workbench (15) and free cursor (21), and uses the layout designation paper placed on the workbench (15) or the reference line of the block and the position data of the projected image. This is for inputting. Computer(
30) is equipped with a keyboard (31), and calculates the baseline of the scanner drum from the reference line and position data of the projected image inputted from the digitizer (20) and the magnification data obtained by the magnification measurement i (10). A function that calculates the pasting angle and trimming range of the photo original for the specified layout, and when the layout designation on the designated layout paper or the layout figure exceeds the input effective range of the digitizer (20), the projected image is applied to the layout designation sheet or the layout figure on the layout designation paper or the layout designation. The magnification data obtained when matching and the position data of an arbitrary base point on the projected image, and when this projected image is reduced to a desired size, that is, a size where the allocated figure falls within the effective range of the digitizer (20). The obtained magnification data,
and a position data calculation function that calculates the position data of the desired measurement point based on the position data on this reduced projection image corresponding to the arbitrary base point and the desired measurement point, respectively, and the position data input to the display (60). It has a display control function to display menus, etc.

The floppy disk (40) is used to store and save magnification data obtained from the magnification measuring device (10), position data input by the digitizer (20), data calculated by the computer (30), etc. in a predetermined format. belongs to.

The XY block (50) is for drawing a baseline and a manuscript pasting frame on the output sheet based on the measured and calculated data, and the display (60) is for displaying the measured data, menus, etc. .

Next, the operation of the apparatus of the present invention will be explained.

To adjust the magnification angle, the operator must first sandwich the photographic original between transparent plates such as glass, and place the photo into the original holder (11) installed below the light source box (13).
Set to .

At the bottom of the light source box (13) are some lenses (
12) are combined to form an arbitrary enlarged/reduced projection image onto the workbench (15) located directly below it. Here, the operator places the layout designation paper or block copy, which has a layout figure that indicates in advance in a rough sketch style how the photo manuscript will be used in the printed matter, on the workbench (15) of the digitizer (20). Then, move the light source box (13) etc. up and down as appropriate using the vertical movement switch provided in front, and move the workbench (15) so that the projected image matches the layout designation paper or block copy. move it above.

Then, when they match, press the button of the free cursor (21) attached to the digitizer (20). Then, the magnification measuring device (10) obtains the distance from the document surface to the lens surface to the digitizer surface using a built-in linear encoder, calculates the magnification of the document from the ratio of the above distance, and displays the value (for example, %) on the display section (16). unit).

Next, input the position coordinates of the trimming apex or two points on the reference line using the free cursor (21) of the digitizer (20) while keeping the projected image and the layout design on the layout designation paper or the layout pattern consistent. .

If the point to be input exceeds the valid input range of the digitizer (20), input as follows. First, the second
As shown in the figure, this projected image (80) and the layout designation sheet (9
0) Align the projected image (80) so that it matches the ring area layout figure of the screen specified above, and rotate the layout designation paper. When the projection image (80) matches the ring of the screen on the layout designation sheet (90), by pressing the free cursor (21) button, the magnification of the projection image (80) is determined from the magnification measuring device. The resulting magnification signal is sent to the CPU of the computer (30).

2 horizontal or vertical points A on the specified layout paper
(ax, ay), B (bx, by) 7'J
- Input using Kurtz JL/(21). point A and B
If you know that the line connecting the points is horizontal or perpendicular to the layout designation paper, you can connect the bottom of the projected image (80) and the digitizer (
By making the bases of 20) parallel, the rotation angle of the original with respect to the base of the designated layout sheet can be calculated by the arithmetic control means.

That's the magnification of the manuscript! And the angle can be calculated.

Here, as shown in FIG. 2, it is assumed that one point C (cx, cy) of the trimming frame, which is a desired measurement point, is out of the effective range of the digitizer (2o). If it is necessary to input point C as a trimming frame, etc., first input the projected image (8
0) Input an arbitrary base point D (dy, dy) on the screen using the free cursor (21).

Next, operate the magnification measuring device (1o) and, while maintaining the angle of the original, locate the point on the projected image that you want to input on the digitizer (20).
Reduce the magnification until it is within the effective range. When the desired magnification is reached, by pressing the button of the free cursor (21), a magnification signal corresponding to the magnification of the projected image is sent from the magnification measuring device (10) to the CPU of the computer (30). Let this magnification be l'. Here, (80
') indicates a reduced projection image, and Co and D'' indicate points on the projection image corresponding to C and D in FIG. 2, respectively.

On the projected image of FIG. 3, which is a reduced magnification, the dots correspond to the dots input earlier in FIG. 2.

Input (d"x, d'y) with the free cursor (21).

Next, point C' (cχ + c'y
) using the free cursor (21).

Magnification 2, the magnification when the projected image is reduced! ``Coordinates, D
', Co are all transferred to the position data calculation means and point C (
cx, ay) coordinates are calculated. The formula for the calculation is as follows.

CX=dx+-(c'x-d'x) It is also possible to input other points beyond the effective range of the digitizer in the same way as above.

When the input work with the digitizer (20) is completed, the obtained position data and magnification data are used to calculate the pasting angle and trimming range of the original in the arithmetic control means, and the data is saved on the floppy disk (40) in a predetermined format. is stored as.

After the output file is created, the operator selects the output command according to the menu displayed on the display (60), and the computer (3o) transfers the data on the floppy disk (40) to the XY plotter (50). do. The XY plotter (5o) draws a base line and a document pasting frame on the sheet based on the transferred data, and this completes the series of operations.

<Effects of the Invention> Since the magnification angle determining device of the present invention is provided with a position data calculation means, it is possible to use a layout designation sheet or a layout figure on a block whose size exceeds the input effective range of the position data input means. It can also be used for various purposes, is efficient as it does not require manual work, and has extremely practical effects such as improved accuracy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory diagram of its external appearance, and FIGS. 2 and 3 are explanatory diagrams showing how to input position data when the layout figure exceeds the effective range of the input means. It is. (10)...Magnification measuring machine (2o)...Digitizer (30)...Computer (40)...Floppy disk (5o)...XY
Plotter (60)...Display patent application Representative Kazuo Suzuki, Toppan Printing Co., Ltd.

Claims (1)

[Claims] 1) A magnification measuring means for projecting a manuscript onto designated layout paper or a block and outputting magnification data, an input means for inputting position data of a reference line and a projected image of the layout designated paper or the master, and the magnification measuring means. arithmetic control means for calculating data on a document pasting angle and a trimming range based on magnification data obtained from the means and position data obtained from the input means;
In the magnification angle determining device, which is composed of an output means that outputs the results calculated by the arithmetic control means, the magnification data and the projection image obtained when the projected image is matched with the layout designation paper or the layout figure of the block copy are used. Based on the position data of an arbitrary base point of , the magnification data obtained when this projected image is reduced to a desired size, and the position data on this reduced projected image corresponding to the arbitrary base point and the desired measurement point, respectively. 1. A magnification angle determining device, comprising a position data calculation means for calculating position data of a desired measurement point.