JPH09244619A - Method and device for varying display size - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily enlarge or reduce a display object to optimum display magnification. SOLUTION: A display area longitudinal/lateral ratio R1 is obtained by dividing display area longitudinal length (h) by display area lateral length (b) (step S301). A screen longitudinal/lateral ratio R2 is obtained by dividing screen longitudinal length H by screen lateral length B (step S302). It is decided whether R1>R2 holds or not (step S303) and when so, the value obtained from r=H/h is decided as display magnification (r) (step S304) and when R1<=R2 holds, the value obtained from r=B/b is decided as display magnification (r) (step S305).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for displaying or printing characters, figures and the like.

[0002]

2. Description of the Related Art Conventionally, there has been known a method for changing the display size of a display object such as a character or a figure in software for graphic processing. When the display target is displayed with a proper margin without protruding from the display frame such as the screen frame of the display to be displayed or the outer frame of the recording paper for printing, the entire display target can be grasped and is easy to see. Therefore, in the conventional method, the user usually enlarges or reduces the display object by appropriately designating the display magnification and the center of the display object.

[0003]

However, in the above-mentioned conventional method, whether the display magnification and the display center designated by the user are appropriate or not is determined based on the designation of the user by changing the magnification and position of the display target. There is a case where trial and error may have to be repeated in order to find the optimum display magnification and display position because it cannot be understood unless the display is actually performed, and it is difficult to scale with the optimum display magnification. was there.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a display size scaling method and apparatus capable of easily scaling a display object at an optimum display magnification. Especially.

[0005]

In order to achieve the above object, the display size scaling method according to claim 1 of the present invention comprises a first ratio of a vertical length of a display frame to a vertical length of an area, and A calculation step of calculating a display magnification based on a second ratio of a horizontal length of the display frame to a horizontal length of the area; and a size of the area based on the display magnification calculated in the calculation step. And a scaling step of scaling.

In order to achieve the same object, in the display size scaling method according to claim 2 of the present invention, the calculation step includes the first step.
The smaller one of the ratio and the second ratio is set as the display magnification.

To achieve the same object, a display size scaling method according to a third aspect of the present invention provides a third ratio of a vertical length to a horizontal length of a display frame and a vertical length to a horizontal length of a region. And a scaling step of scaling the size of the region based on the display magnification calculated in the calculating step. To do.

In order to achieve the same object, a display size scaling method according to a fourth aspect of the present invention is the method according to the third aspect, wherein in the calculation step, the third ratio is greater than the fourth ratio. When it is smaller, the ratio of the vertical length of the display frame to the vertical length of the area is set as the display magnification, and when the third ratio is larger than the fourth ratio, the horizontal width of the area is set. The ratio of the horizontal length of the display frame to the length of the display frame is set as the display magnification.

In order to achieve the same object, a display size scaling method according to a fifth aspect of the present invention is the method according to any one of the first to fourth aspects, in which the area includes a figure and a character string. It is characterized by including at least one image.

In order to achieve the same object, a display size scaling method according to a sixth aspect of the present invention is characterized in that, in the configuration according to any one of the first to fifth aspects, the area is rectangular. And

In order to achieve the same object, the display size scaling method according to claim 7 of the present invention is, in the structure according to claim 6, characterized in that the region has a margin between itself and a rectangle circumscribing the image. It is characterized by

In order to achieve the same object, the display size scaling method according to claim 8 of the present invention is the configuration according to any one of claims 5 to 7, further including a designating step of designating the image. It is characterized by

In order to achieve the same object, the display size scaling method according to claim 9 of the present invention has the configuration according to any one of claims 1 to 8 wherein scaling is performed in the scaling step. It is characterized by including a visible display step of visually displaying the region in the display frame.

To achieve the same object, a display size scaling method according to a tenth aspect of the present invention is the display size scaling method according to the ninth aspect, wherein in the configuration according to the ninth aspect, the center of the region scaled in the scaling step and the display frame are It is characterized by including a matching step of substantially matching the center.

In order to achieve the same object, the display size scaling method according to claim 11 of the present invention is the same as claim 9 or 10 above.
In the described configuration, the display frame is at least one of a screen frame of the display and an outer frame of the recording paper.

To achieve the same object, a display size scaling device according to a twelfth aspect of the present invention provides a first ratio of the vertical length of the display frame to the vertical length of the region and the horizontal length of the region. A calculating means for calculating a display magnification based on a second ratio of the lateral length of the display frame with respect to, and a changing means for changing the size of the area based on the display magnification calculated by the calculating means. It is characterized by having.

In order to achieve the same object, a display size scaling device according to a thirteenth aspect of the present invention provides a third ratio of the vertical length to the horizontal length of the display frame and the vertical length to the horizontal length of the region. And a scaling means for scaling the size of the area based on the display magnification calculated by the computing means. And

[0018]

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

FIG. 1 is a block diagram showing the configuration of a display size scaling device according to an embodiment of the present invention. In the figure, 1 is a central processing unit, which controls the operation of the entire apparatus. The central processing unit 1 includes a memory 2, a mouse 3, and a display unit 4.
And the printing unit 5 is connected.

The memory 2 is composed of a RAM (random access memory) or the like, and stores image data, character string data and the like, and these data are visually displayed on the display unit 4 under the control of the central processing unit 1. In addition, the printing section 5 prints out on a recording paper (not shown). The mouse 3 has a display unit 4
It is used to specify an arbitrary area from the image displayed on the screen. Further, the central processing unit 1 has a ROM (not shown) storing programs for executing various controls.
(Read-only memory) is provided.

The central processing unit 1 controls the image of the area designated by the mouse 3 to be displayed again on the display unit 4 after changing the magnification. At that time, various variables (display magnification, aspect ratio, Center point coordinates, circumscribed rectangle coordinates, etc.) are calculated as described below.

FIG. 2 is a flowchart showing the control procedure of the image display processing in the display size changing apparatus according to this embodiment, which is executed by the central processing unit 1.

By selecting a figure which is desired to be extracted and re-displayed from among the figures in the image displayed on the display unit 4 and the user designates the area with the mouse 3 so that the figure is included, This processing is started.

First, it is determined whether or not a graphic is included in the area designated by the user (step S201). If the graphic is not included in the area, the present process is immediately terminated, while if the graphic is included, the graphic is included. , The minimum rectangle that includes all included figures and is circumscribed vertically and horizontally, that is, the coordinates of the circumscribed rectangle RECT10 (step S20).
2).

Next, the coordinates of a rectangle with appropriate margins added to the top, bottom, left and right of the circumscribing rectangle RECT10 are determined, and this rectangle is designated as the display area RECT20 (step S203).

Next, the circumscribing rectangle RECT 10 and the display unit 4
The display magnification r is calculated by the process described later based on the screen size of the display area REC (step S204).
The center point P0 of T20 is obtained (step S205), the display area RECT20 is scaled by the display magnification r with the center point P0 as the center of the screen, and is displayed on the display unit 4 (step S206), and this processing ends.

FIG. 3 is a flow chart showing the procedure of the display magnification calculation processing executed in step S204 of FIG.

First, the display area aspect ratio R1 of the display area RECT20 is calculated (step S301). Here, assuming that the vertical length of the display area RECT20 is the display area vertical length h and the horizontal length is the display area horizontal length b, the display area aspect ratio R1 is obtained by the calculation formula R1 = h / b.

Next, the screen aspect ratio R of the screen 41 of the display unit 4
2 is calculated (step S302). Here, assuming that the vertical length of the screen 41 is the screen vertical length H and the horizontal length is the screen horizontal length B, R2 is obtained by a calculation formula of R2 = H / B.

Then, it is judged whether or not R1> R2 is satisfied (step S303). When it is satisfied, r = H /
The display magnification r is calculated by the calculation formula h (step S304), and when this process is completed, when R1 ≦ R2 is satisfied, the display magnification r is calculated by the calculation formula r = B / b.
Is calculated (step S305), and this processing ends.

By the processing of FIGS. 2 and 3, the figure selected by the user can be scaled and displayed at the optimum display magnification.

Here, the display magnification takes into consideration the vertical and horizontal sizes of the screen 41 and the display area RECT20. By the processing of FIG. 3, when the display area RECT20 is vertically longer than the screen 41, the vertical length is set. On the other hand, when the display area RECT20 is horizontally longer than the screen 41 while being set as a reference, the horizontal length is set as a reference, so that the display area RECT20 does not extend beyond the screen 41 that is the display frame. The RECT 20 can be scaled appropriately.

Further, since an appropriate margin is set in the circumscribing rectangle RECT10, a more practical and easy-to-see display result can be obtained.

Further, since the center point P0 of the display area RECT20 is displayed so as to be substantially aligned with the center of the screen 41,
It can be displayed at the optimum display position.

FIG. 4 is a diagram showing an example of an image display result by the display size scaling device according to the present embodiment. The diagram on the left side of the figure shows the state before scaling, and the diagram on the right side shows the state where the scaling is performed and the image is displayed on the screen 41 of the display unit 4.

A circumscribed rectangle RECT containing the selected figure group
An appropriate margin is set in 10, and the display area RECT
20 is set. In this example, the display area RECT20 is more vertically long than the screen 41, which is the display frame. Therefore, R1> R2 is satisfied by the above-described calculation formula, and the display area vertical length h is approximately the same as the screen vertical length H. The entire display area RECT20 is enlarged and displayed so as to have the length. At that time, the center point P0 is displayed so as to substantially coincide with the screen center of the screen 41.

In this embodiment, the display frame is displayed on the screen 4.
Although the display magnification is calculated as 1, the display magnification is not limited to this, and the display magnification is calculated using the size of the recording paper recorded by the printing unit 5 as a display frame, and the display area RECT20 is output on this recording paper. May be.

The display magnification r is the display area aspect ratio R.
Although 1 is calculated as either H / h or B / b by discriminating the magnitude from the screen aspect ratio R2, the present invention is not limited to this. For example, the ratio of the screen vertical length H to the display area vertical length h (hereinafter referred to as “first ratio”),
And a ratio of the screen horizontal length B to the display area horizontal length b (hereinafter referred to as “second ratio”) is obtained, and the display magnification r is set to H / h or H / h by discriminating the magnitude of the first ratio and the second ratio. B / b
It may be calculated as any one of the above.

It should be noted that the object to be scaled display is not limited to the graphic image, but may be other data as long as it is a display object such as a character string.

[0040]

As described above, according to the first aspect of the present invention.
According to the display size scaling method of the present invention or the display size scaling apparatus of claim 12, the first ratio of the vertical length of the display frame to the vertical length of the region and the horizontal length of the region are set. Since the display magnification is calculated based on the second ratio of the lateral lengths of the display frames, and the size of the area is scaled based on the calculated display magnification, it is easy to obtain the optimum display magnification. You can scale the area.

According to the display size scaling method of the second aspect of the present invention, the smaller one of the first ratio and the second ratio is set as the display magnification, so that the area is out of the display frame. While preventing this, the area can be easily magnified with the optimum display magnification.

According to the display size scaling method of the third aspect of the present invention or the display size scaling apparatus of the thirteenth aspect, the third ratio and the area of the vertical length to the horizontal length of the display frame are provided. The display magnification is calculated based on the fourth ratio of the vertical length to the horizontal length, and the size of the region is scaled based on the calculated display magnification. You can easily scale the area.

According to the display size scaling method of the fourth aspect of the present invention, when the third ratio is smaller than the fourth ratio, the vertical length of the display frame with respect to the vertical length of the region is set. When the ratio of length is the display magnification and the third ratio is larger than the fourth ratio, the ratio of the horizontal length of the display frame to the horizontal length of the region is the display. Since it is a magnification, while preventing the area from protruding from the display frame,
The area can be easily scaled at the optimum display magnification.

According to the display size scaling method of the seventh aspect of the present invention, since the area has a margin between itself and the rectangle circumscribing the image, the area can be scaled to a size that is easier to see.

According to the display size scaling method of the eighth aspect of the present invention, since the image is designated, the usability can be further improved.

According to the display size scaling method of the ninth aspect of the present invention, since the scaled area is visually displayed in the display frame, the area can be easily displayed at the optimum display magnification.

According to the display size scaling method of the tenth aspect of the present invention, since the center of the scaled area and the center of the display frame substantially coincide with each other, the optimum display magnification and display position can be obtained. You can easily display the area.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a display size scaling device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a procedure of image display processing in the apparatus.

FIG. 3 is a flowchart showing a procedure of display magnification calculation processing in the apparatus.

FIG. 4 is a diagram showing an example of an image display result by the device.

[Explanation of symbols]

 1 central processing unit 2 memory 3 mouse 4 display unit 5 printing unit

Claims (13)

[Claims] 1. A display based on a first ratio of a vertical length of a display frame to a vertical length of a region and a second ratio of a horizontal length of the display frame to a horizontal length of the region. A display size scaling method comprising: a calculation step of calculating a magnification; and a scaling step of scaling the size of the region based on the display magnification calculated in the calculation step. 2. The display size scaling method according to claim 1, wherein in the calculating step, the smaller one of the first ratio and the second ratio is used as the display magnification. 3. A calculation step for calculating a display magnification based on a third ratio of the vertical length to the horizontal length of the display frame and a fourth ratio of the vertical length to the horizontal length of the region. And a scaling step of scaling the size of the region based on the display magnification calculated in the calculating step. 4. In the calculating step, when the third ratio is smaller than the fourth ratio, the ratio of the vertical length of the display frame to the vertical length of the region is set as the display magnification. At the same time, when the third ratio is larger than the fourth ratio, the ratio of the horizontal length of the display frame to the horizontal length of the region is set as the display magnification. Display size scaling method described. 5. The display size scaling method according to claim 1, wherein the area includes an image of at least one of a graphic and a character string. 6. The display size scaling method according to claim 1, wherein the area has a rectangular shape. 7. The display size scaling method according to claim 6, wherein the area has a margin between a rectangle circumscribing the image. 8. The display size scaling method according to claim 5, further comprising a designation step of designating the image. 9. The display size scaling according to claim 1, further comprising a visible display step of visually displaying an area scaled in the scaling step on the display frame. Method. 10. The display size scaling method according to claim 9, further comprising a matching step of substantially matching the center of the area scaled in the scaling step with the center of the display frame. 11. The display size scaling method according to claim 9, wherein the display frame is at least one of a screen frame of a display and an outer frame of a recording sheet. 12. The display magnification is based on a first ratio of the vertical length of the display frame to the vertical length of the region and a second ratio of the horizontal length of the display frame to the horizontal length of the region. A display size scaling device comprising: a computing unit that computes and a scaling unit that scales the size of the area based on the display scaling factor calculated by the computing unit. 13. Calculation means for calculating a display magnification based on a third ratio of the vertical length to the horizontal length of the display frame and a fourth ratio of the vertical length to the horizontal length of the region. And a scaling unit that scales the size of the area based on the display scaling factor calculated by the computing unit.