JP2786098B2 - Figure enlargement editing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic enlarging / editing method for facilitating graphic enlarging operations in a processing apparatus such as a text creating apparatus having a graphic editing function.

[0002]

2. Description of the Related Art Conventionally, when a graphic is input and edited in a processing device such as a text creating device, generally, a graphic primitive (original or initial graphic) is selected and a display position and an enlargement ratio on a display are designated. In this method, a graphic primitive is converted into a desired position and size and edited. In this case, the enlargement ratio is specified as 1
Although a method of designating a numerical value such as 50% (1.5 times) is generally used, a method of designating a target position to be enlarged using a mouse or the like in an analog manner has been proposed.

[0003]

In the conventional graphic enlargement / editing process, the method of designating the enlargement ratio by a numerical value is such that a user visually recognizes the current size of the graphic on a display and appropriately performs enlargement. The operation to enlarge the figure by specifying the numerical value of the enlargement ratio that seems to be considered is repeated and the figure enlargement operation is repeated until the figure size becomes the intended size, so the operation becomes complicated and inefficient There is a problem.

On the other hand, in a method of performing an analog enlargement operation by specifying an enlargement position with a mouse or the like, the operation is simple and efficient, but the user has to increase the enlargement ratio when performing the enlargement operation. Because it was not possible to know numerically, it was sometimes inconvenient.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a graphic enlarging / editing method which is easy to operate and can easily know an enlarging ratio without numerically specifying it.

[0006]

According to the graphic enlarging / editing method of the present invention, a moving direction of a graphic is designated by moving a cursor with a mouse or the like. Is set, and the amount of enlargement in the direction designated by the cursor is converted into a corresponding value in the stepwise numerical sequence of the enlargement ratio based on this step value. In addition to enlarging the figure, the numerical value of the enlargement ratio and the enlarged figure are displayed on a display.
In a processing apparatus having an editing function of displaying a desired graphic on a display by designating the original shape of the graphic to be edited and its position and enlargement ratio, a step value of the enlargement ratio when enlarging and specifying the original shape of the graphic to be edited Value specifying means for numerically specifying the position of the destination of the cursor after the figure is pointed by the cursor on the display at the time of the enlargement operation; Enlargement ratio determining means for stepwise determining a value of a corresponding enlargement ratio from a designated step value, and expanding the figure based on the value of the enlargement ratio every time the value of the enlargement ratio is determined stepwise Enlargement operation means for performing an operation; graphic display processing means for displaying the original shape of the graphic or a graphic obtained as a result of the enlargement operation on a display based on graphic data; Using the enlargement ratio display processing means for displaying the value on the display, and specifying the numerical value of the enlargement ratio in advance by the above-mentioned step value designation means, and then when the user performs an enlargement operation using a cursor, Detecting the destination of the cursor by the enlargement ratio determining means, determining the enlargement ratio in accordance with the step value of the enlargement ratio in a stepwise manner, and performing the enlargement operation of the figure by the enlargement operation means based on the determined enlargement ratio; The enlarged graphic is updated and displayed on the display by the graphic display processing means, and the value of the magnification is displayed on the display by the magnification display processing means.

FIG. 1 is a diagram illustrating the principle of the present invention. FIG.
In the drawing, reference numeral 1 denotes a display capable of displaying a graphic such as a CRT.

Reference numeral 2 denotes a processing device such as a text creation device having a graphic editing function. 3 is a mouse. 4 is a keyboard.

Reference numeral 5 denotes a graphic primitive selecting means for inputting a graphic primitive from the keyboard 4 or the like and displayed on the display 1. Reference numeral 6 denotes a step value designating means for holding and designating the value of the step value of the enlargement ratio input from the keyboard 4. The step value is specified, for example, as 20% or 50%.

Reference numeral 7 denotes cursor movement detecting means for detecting the coordinates of the cursor movement destination from the operation direction and operation amount of the mouse 3. A step 8 calculates the ratio of the coordinates enlarged from the coordinates of the cursor movement detected by the cursor movement detection means 7 and the original coordinates, and further calculates the closest stepwise value from the enlargement ratio and the previously specified step value. This is an enlargement ratio determining unit that performs a process of determining a value of an appropriate enlargement ratio. For example, 5
When 0% is specified, the stepwise numerical values that can be taken as the enlargement ratio are 50% (0.5 times), 100% (1
Times), 150% (1.5 times), 200% (2 times), ...
・ ・

Reference numeral 9 denotes an enlargement operation means for performing an operation of enlarging a graphic primitive by using the numerical value of the enlargement ratio determined by the enlargement ratio determination means 8. Reference numeral 10 denotes a graphic display processing means for displaying an original graphic, a graphic obtained as a result of enlargement operation, and the like on the display 1 based on graphic data.

Numeral 11 denotes an enlargement ratio display processing means for displaying a numerical value of the enlargement ratio used for the graphic enlargement on the display 1. Reference numeral 12 denotes a graphic primitive of an example of a triangle.

Reference numeral 13 denotes a mouse cursor shown in a state where the right end of the graphic primitive 12 is pointed. Reference numeral 13 'denotes a mouse cursor shown in a state after performing a horizontal enlargement operation using the mouse 3.

Reference numeral 14 denotes an enlarged figure in which the figure primitive 12 is enlarged by 150% in the horizontal direction. Reference numeral 15 denotes an enlargement ratio in each of the horizontal direction (X) and the vertical direction (Y).

In operation, the user first specifies an appropriate step value (25%, 50%, etc.) using the step value specifying means 6 from the keyboard 4, and inputs the step value to the enlargement ratio determining means 8. Set.

Next, the mouse 3 is operated to designate the graphic primitive 12 to be enlarged by the mouse cursor 13. The graphic data of the specified graphic primitive 12 is identified and selected by the graphic primitive selecting means 5, and is input to the enlargement ratio determining means 8 and the enlargement calculating means 9.

Subsequently, the user operates the mouse 3 to point to the portion of the graphic primitive 12 to be enlarged, and moves the mouse cursor 13 in the direction to enlarge. The amounts of movement of the mouse cursor 13 in the X and Y directions are continuously detected by the cursor movement detecting means 7 and input to the enlargement ratio determining means 8. Magnification determining means 8
Calculates the ratio between the input movement amount in the X direction and the input movement amount in the Y direction and the size (width) of the graphic primitive 12 in the X direction and the Y direction, and enlarges each time the size exceeds a preset step value. By updating the rate, the enlargement rate determined stepwise for the moving operation of the mouse 3 is notified to the enlargement calculating means 9 and the enlargement rate display processing means 11. For example, if the step value is 5
Assuming 0%, the magnification is 100%, 150, 200%,
It changes like ...

Each time a new enlargement ratio is notified, the enlargement operation means 9 performs an enlargement operation on the graphic data of the graphic primitive 12 based on the notification, and outputs the resulting graphic data to the graphic display processing means 10.

The graphic display processing means 10 includes the enlargement calculation means 9
Whenever outputs the result of enlargement operation of figure, display 1
Update the currently displayed figure with the new enlarged figure.

The enlargement ratio display processing means 11 displays the enlargement ratio corresponding to the enlarged figure displayed on the display 1 numerically in each of the X and Y directions.

[0021]

The operation of the present invention will be described. The width of the figure primitive in the x direction is l _x0 , the width in the y direction is l _y0, and the movement amounts of the mouse cursor 13 in the x and y directions are r _x and r _y , respectively.
When, x, y each direction magnification m _x, m _y is given by the following equation. Here, the enlargement ratio is represented by a ratio. Therefore, when expressed as a percentage, they are multiplied by 100.

[0022] m _x = In _{(l x0 + r x) /} l x0 m y = (l y0 + r y) / l y0 Incidentally present invention, m _x, m _y stepwise on the basis of the step value s of each ratio since changes, expressed such magnification in _{m x ', m y',} m x 'm y':::: (0 <m x ≦ 1-s) → 1-s (0 <m _{y ≦ 1-s) → 1} -s (1-s <m x ≦ 1) → 1 (1-s <m y ≦ 1) → 1 (1 <m x ≦ 1 + s) → 1 + s (1 <m y ≦ 1 + s) → 1 + s (1 + s <m x ≦ 1 + 2s) → 1 + 2s (1 + s <m y ≦ 1 + 2s) → 1 + 2s:::: next, in general, n a positive or negative integer (± 0, 1, 2,
As ...), if _{1 + ns <m x ≦ 1} + (1 + n) s 1 + ns <m y ≦ 1 + (1 + n) s, m x ', m y' each _{m x '= 1 + (1} + n) s m y '= 1 + (1 + n) s. For example, if the step value s and 0.5 (50%), stepwise values of m _x 'with respect to a change in m _x is as follows.

[0023] Becomes

As described above, if the value of the step value s is made small, the stepwise change during the figure enlargement operation can be known in detail, but the figure enlargement operation circuit increases, and the processing takes time. If the value of s is increased, the stepwise change during the figure enlargement operation can only be roughly known, but the processing can be speeded up because the number of figure enlargement operations in the middle can be reduced. In any case, since the enlargement ratio for the current figure is displayed as a numerical value, the figure enlargement operation is made more efficient.

[0025]

FIG. 2 is a block diagram of a graphic processing apparatus according to an embodiment of the present invention. In the figure, 20 is a mouse, 21 is a memory, 22 is a mouse control program, 23 is mouse cursor coordinate data, 24 and 24 'are graphic data, 25 is an enlargement ratio step value, 26 is a graphic enlargement processing program, and 27 is an enlargement ratio , 28 are graphic generation programs, 29 is a CPU, 30 is a display control circuit, and 31 is a display.

The CPU 29 controls the mouse control program 21
To retrieve the operation information of the mouse 20 and update the mouse cursor coordinate data from the mouse movement data. The CPU 29 also executes the graphic enlargement processing program 26 to select graphic data (24, 24 ', etc.) to be enlarged and to set the enlargement ratio step value 25. From the mouse cursor coordinate data 23 based on the amount of movement data of the cursor and the data of the position and size of the figure included in the selected figure data, the enlargement ratio 27 having stepwise values and the position coordinates of the enlarged figure are determined. . The mouse cursor coordinate data 23 is updated with the determined position coordinates of the enlarged graphic. Therefore, the position of the mouse cursor displayed on the display 31 is corrected to a position determined by the stepwise value.

Subsequently, the CPU 29 executes the graphic generation program 2
8 to generate an enlarged figure and output it to the enlarged figure coordinate position. The data of the enlarged figure and the data of the enlargement ratio are sent to the display control circuit 30 and displayed on the display 31 respectively.

FIG. 3 schematically shows the above operation in the form of a flow. In the above-described embodiment, the figure being handled is a two-dimensional figure, and the enlargement ratio can be set for the x-axis and the y-axis. However, when processing a projected figure of a three-dimensional image, x It is also possible to set the step values individually for the three axes of the axis, the y-axis, and the z-axis, determine the enlargement ratios separately, perform enlargement processing, and display the respective enlargement ratios.

[0029]

According to the present invention, the graphic processing apparatus responds digitally in spite of the fact that the user moves the mouse in an analog manner to continuously move the mouse cursor and gives an enlargement instruction in the graphic enlarging operation. , The numerical value of the enlargement ratio during the enlargement operation and the enlarged figure are output step by step.
It is possible to realize both easy operation and highly accurate enlargement instruction.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a configuration diagram of a graphic processing apparatus according to an embodiment of the present invention.

FIG. 3 is a schematic processing flow of the apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display 2 Processing device 3 Mouse 4 Keyboard 5 Graphic primitive selection means 6 Step value designation means 7 Cursor movement detection means 8 Magnification rate determination means 9 Magnification operation means 10 Graphic display processing means 11 Magnification rate display processing means 12 Graphic primitives 13 Mouse cursor 13 'Mouse cursor after enlargement operation 14 Enlarged figure 15 Magnification

Claims (2)

(57) [Claims] 1. A processing apparatus having an editing function for displaying a desired graphic on a display by designating the original shape of the graphic to be edited and its position and enlargement ratio. A step value designating means for designating a step value of an enlargement ratio, and detecting a coordinate position of the cursor after the figure is pointed by the cursor on the display at the time of the enlargement operation, and an enlargement ratio of coordinates by moving the cursor. And a magnification determining means for determining a value of the corresponding magnification step by step from the specified step value, and each time the value of the magnification is determined step by step, a graphic is generated based on the value of the magnification. Enlarging operation means for performing an operation for enlarging the image, graphic display processing means for displaying the original shape of the graphic or a graphic obtained as a result of the enlarging operation on a display based on graphic data, When using the enlargement ratio display processing means for displaying the value of the enlargement ratio on the display, specifying the step value of the enlargement ratio in advance by the above-mentioned step value designation means, and then performing the enlargement operation using the cursor. The enlargement ratio determining means detects the coordinate position of the cursor's movement, determines the enlargement ratio in accordance with the step size of the enlargement ratio in a stepwise manner, and enlarges the figure by the enlargement operation means based on the determined enlargement ratio. A graphic enlargement / editing method comprising performing an arithmetic operation, updating the enlarged graphic on a display by the graphic display processing means, and displaying the value of the enlargement ratio on the display by the magnification display processing means. 2. The method according to claim 1, wherein the step of specifying the step value of the enlargement ratio can be individually specified for each of the x-axis, the y-axis, and the z-axis. A graphic enlargement / editing method characterized by displaying a value of an enlargement ratio determined for each of an axis, a y-axis, and a z-axis on a display.