JPH07239946A - Image moving system - Google Patents

Abstract

PURPOSE:To obtain an image moving system of excellent operability for user by devising the system so that an object displayed on a display screen can be moved at a high speed and the object being moved is always displayed on the display screen. CONSTITUTION:The entire original image is stored in an original image storage layer 10, a part of area of the image is stored in a VRAM 12 and displayed on a display screen 15. When an object is started for movement, the image of the object is transferred from the original image storage layer 10 to a moving image storage layer 11, and a part of the areas of the original image storage layer 10 and the object in the moving image storage layer 11 are synthesized and the result is written in the VRAM 12. While the object is being moved, a different area is read from the original image storage layer 10 one after another according to the moving quantity and the image of the area and the object of the moving image storage layer 11 are synthesized and the result is written in the VRAM 12. When the movement is finished, the object is transferred from the moving image storage layer 11 to a moving destination area of the original image storage layer 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for moving an image displayed on a display screen in a computer system or the like.

[0002]

2. Description of the Related Art According to a conventional image moving method in a computer system, an object within the display area is displayed while a partial area of the entire image is displayed on a display screen (typically a window). When moving out of the area, the user first selects the object,
When the operation (drag) of moving the selected object to the outside of the display screen is performed, the display area of the display screen is changed by a certain distance in the moving direction until the area to which the object is moved is displayed on the display screen. , This background area change is repeated. In this way, the display area of the display screen is repeatedly changed at a constant distance in the moving direction of the object, and when the user finally performs the operation of confirming the placement of the object, the image of the object is moved to the source in the storage layer of the entire image. Is transferred to the destination.

The movement of the display screen by this conventional moving method is specifically shown in FIGS. 1 to 3.

Here, as shown in FIG. 1, the whole image 1
It is assumed that the object 3 is moved to the position 5 outside the display area 2 in the state where the partial area 2 is displayed on the display screen 4.

First, as shown in FIG. 2, the user selects an object 3 on the display screen 4 and moves the selected object 3 outward beyond the outer edge position 6 of the display screen 4 (drag). Then, the display area 2 of the display screen 4 is changed by a certain distance in the moving direction.

Then, as shown in FIG. 3, this changing process is repeated until the area 6 of the moving destination 5 of the object is displayed on the display screen 4. Finally, when the user performs an operation to determine the destination 5 of the object, the information of the object is transferred to the determined destination 5 in the storage layer of the entire image 1.

In another moving method, the image of the selected object is transferred from the storage layer of the entire image to a storage layer called a clipboard, and then the display area of the display screen is changed by jumping to the destination area. Then, the transfer is completed by transferring the object image stored and held in the clipboard to the storage layer of the entire image.

A typical example of the above method is MacDra which is a drawing tool of Claris, Inc. in the United States.
w is known.

[0009]

In the above-mentioned prior art, since the distance of one change of the display area of the display screen is constant, when the distance from the source to the destination of the object is long, As shown in 4, the source 2
It is necessary to sequentially display on the display screen 4 a plurality of areas 8 that do not need to be displayed and that exist between the moving destination and the moving destination 7, and it takes a long time to rewrite the display area for that purpose. , Difficult to move at high speed.

In the method using the clipboard, since the object image cannot be combined with the image of the area of the moving destination and displayed on the display screen during the moving operation, the placement of the object at the moving destination is precisely determined. Therefore, it is necessary to finely adjust the arrangement after the movement is completed, and as a result, the operability for the user is deteriorated.

Therefore, it is an object of the present invention to enable an object displayed on a display screen to move at high speed and to keep the moving object constantly displayed on the display screen, which is convenient for the user. To provide an image moving method.

[0012]

The image moving method according to the first aspect of the present invention is an input device for inputting a moving amount of an object, an original image storage layer for storing the entire original image, and an image of the object. For controlling the read / write operation of the original image storage layer and the original image storage layer, which stores different regions of the original image storage layer in response to the movement amount from the input device. , A controller for causing the image to be read out, a partial area of the original image read out from the original image storage layer, and an object image read out from the moving image storage layer to be combined and written to a video memory for display. And an image synthesizing device.

The method according to the second aspect of the present invention is the method according to the first aspect, wherein the input device can input a movement start command and a movement end command of the object, and the controller responds to the movement start command. The object image is transferred from the original image storage layer to the moving image storage layer, and the object image is transferred from the moving image storage layer to the original image storage layer in response to a movement end command.

According to a third aspect of the present invention, in the method of the first aspect, when the controller receives a movement amount, a partial area corresponding to a movement destination determined by the movement amount is set in the original image storage layer. It is characterized by being read.

A method according to a fourth aspect of the present invention is the method according to the first aspect, wherein when the image synthesizing apparatus synthesizes the object image from the moving image storage layer with the image of the partial area of the original image, It is characterized in that the image is combined so that the image is fixed at a fixed position in the video memory.

[0016]

According to the method according to the first aspect, when the object is moved, the original image (background image) moves on the screen while the object is always displayed on the display screen. Therefore, it is easy to position the object at the destination.

Further, according to the method according to the first aspect, when the object is moved, by using the moving amount input means (for example, a scroll bar) as in the case of using the clipboard in the prior art, Since the user can instruct an arbitrary amount of movement, it is possible to jump and change the display area of the display screen.

According to the method of the second aspect, when the movement is started, the object is transferred from the original image storage layer to the movement image storage layer, and the movement is performed according to the movement amount, and then the movement end command is input. The object is returned from the moving image storage layer to the original image storage layer. Therefore, the object is held in the moving image storage layer only from the start of movement to the end of movement. Therefore, in the situation where a plurality of objects are displayed on the display screen, it is possible to designate one or more arbitrary objects from them and transfer them to the moving image storage layer and move them. . Further, at a position A in the original image storage layer, an object is selected and transferred to the moving image storage layer and moved to a position B, and an object different from the object already selected at this position B is additionally selected, By moving C, selecting an arbitrary object held in the moving image storage layer and transferring it to the original image storage layer, objects can be collected from a plurality of locations or the collected objects can be dispersed in a plurality of locations. In this case, the operability can be improved.

Further, in the method according to the second aspect, after the movement is completed, the moved object is returned to the original image storage layer. Therefore, when another type of processing is subsequently applied to the original image, the movement is performed. The conventional processing method can be used without being aware of the image storage layer. That is, it does not cause any inconvenience to the processing other than the movement.

According to the method of the third aspect, the read area of the original image is changed by jumping from the area of the source of the object to the area of the destination corresponding to the amount of movement. Therefore, since the intermediate area is not displayed, the number of times of rewriting the video memory is only one, and high-speed movement is possible.

According to the method according to the fourth aspect, during the movement, the object stands still at a fixed position on the display screen and only the background moves. Therefore, it is convenient when the object is placed at the center of the screen and the user wants to move the object in a state in which the surrounding background can be fully viewed. Also,
For example, when moving an object to the right, if you want to move it while looking well at the background on the right side of the object, move the object to the left edge of the screen in advance and move the object. The area on the right side is displayed, which is convenient.

[0022]

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

FIG. 5 is a diagram showing the overall configuration of an embodiment of the present invention.

In FIG. 5, reference numeral 8 is a programmed computer, which includes at least an original image storage layer 10, a moving image storage layer 11, and a video RAM (VRAM) 12 as a memory for storing an image. The original image storage layer 10 stores the entire original image composed of various objects such as sentences, figures, tables, and still images. The moving image storage layer 11 holds an image of the selected object during the moving operation of the selected object. The VRAM 12 holds the image currently displayed on the display screen 15.

The image synthesizing device 13 is placed between the original image storage layer 10 and the moving image storage layer 11 and the VRAM 12,
It works to combine the image data read from the original image storage layer 10 and the moving image storage layer 11 and to write them in the VRAM 12. Further, the controller 14 uses the original image storage layer 10 or the moving image storage layer 1 based on a command from an input device operated by a user, such as a mouse 16 or a keyboard 17.
1 data read / write operation is controlled.

By the way, in the case of a type of system in which one or more windows are displayed on the display screen 15 and the windows can be operated as one independent screen,
A window storage layer for holding an image of a window is provided between the original image storage layer 10 and the image synthesizing device 13. A configuration having such a window storage layer is more common today, but since it is not directly related to the essence of the present invention, in order to simplify the explanation, the configuration without the window storage layer is described below. An example will be described below.

FIG. 6 shows an image correspondence relationship between the original image storage layer 10, the moving image storage layer 11, the VRAM 12 and the display screen 15.

An object image in an arbitrary partial area can be read out from the original image storage layer 10 and expanded in the VRAM 12. The image stored in the VRAM 12 is constantly read and displayed on the display screen 15 in a raster system. It should be noted that scroll bars 151 and 153 for indicating the moving direction and the moving amount of the object are displayed on the edge of the display screen 15.

The moving image storage layer 11 has a one-to-one relationship with the VRAM 12. In this moving image storage layer 11,
At the start of moving the object, the image of the object is transferred from the original image storage layer 10 (moving image storage layer 11
Written to and erased from the original image storage layer 10),
It is held temporarily until the movement is completed. The object image stored in the moving image storage layer 11 is combined with an arbitrary area image read from the original image storage layer 10 and written in the VRAM 12.

In this combined display state, the area read from the original image storage layer 10 is changed so as to jump from the movement source to the movement destination according to the movement operation of the object by the user. As a result, display screen 1
On 5, the object remains stationary and only its background is changed to the destination.

FIGS. 7 to 12 show the flow of image data when moving an object. FIG. 13 shows a flow of operations at this time. The movement operation will be described in detail with reference to these drawings.

First, in the initial state, as shown in FIG. 7, a partial area 101 starting from a certain position (X0, Y0) in the entire image stored in the original image storage layer 10 is used.
Image is selectively read out and sent to the image synthesizing device 13. The image synthesizing device 13 directly outputs this image to V
Send to RAM12. In this way, the copy image 121 of the original image 101 held in the VRAM 12 is the display screen 1
5 is read out and displayed. At this time, the moving image storage layer 11
The content of is empty.

In this initial state, when the user selects a certain object 122 in the display image 121 on the screen 15 (in other words, when a movement start command is input for the object 122) (FIG. 13, step 200), 8, selected object 1 in the original image
The image of 02 is moved from the original image storage layer 10 to the moving image storage layer 11
(Step 201). At this time, in the moving image storage layer 11, the position (x0, y0) of the selected object 122 in the VRAM 12 is held as the position of the transferred object 102.

Subsequently, as shown in FIG. 9, an image of the object 102 in the moving image storage layer 11 and the display area 10 of the original image storage layer 10 in which the object 102 is deleted.
1 image is sent to the image synthesizing device 13, where XOR is performed.
It is synthesized by calculation, written in the VRAM 12, and displayed on the display screen 15 (step 202). At this time, the combination is performed so that the copy position of the object 102 on the VRAM 12 becomes the same position (x0, y0) as the original position. As a result, the same image as the initial state of FIG. 7 can be seen on the display screen 15 except that the object 122 is displayed in reverse with respect to the display image 121 that is the background image.

In this state, when the user next performs a predetermined movement operation (for example, the scroll bars 151 and 153 on the outer edge of the display screen 15 are moved in the movement direction while the left button of the mouse is being pressed) (step 203). ), As shown in FIG. 10, the movement destination position (X1,
The image of the area 103 starting from Y1) is the original image storage layer 1
It is read from 0, and this and the image of the object 102 in the moving image storage layer 11 are combined by the image combining device 13, written in the VRAM 12, and displayed on the display screen 15 (step 204). At this time, the combination is performed so that the copy position of the object 102 on the VRAM 12 is the same position (x0, y0) as the original position. Therefore,
On the display screen 15, the object 122 remains stationary at the same position, and only the background image jumps from the first area image 121 to the destination area image 123 at once.

If the user further increases or decreases the moving amount of the scroll bars 151, 153, the background changing process similar to the above is performed according to the increasing or decreasing amount (step 204). Finally, as shown in FIG. 11, the region 104 starting from the position (X2, Y2) is VR
When the user performs an operation to end the movement of the object 122 in the state of being copied in the AM 12 (for example, pressing the right button of the mouse) (step 205), the object 102 in the moving image storage layer 11 becomes original. The image is transferred to the destination position (x1, y1) in the area 104 of the image storage layer 10 (step 206). At that time, the movement destination position (x1, y1) of the object 102 is the start position (X2, Y2) of the area 124 held in the VRAM 12, and the image synthesizing device 13
Position of object 102 held by (x0, y0)
It is calculated based on

When the movement of the object 102 is completed as described above, the image of the area 104 starting from the position (X2, Y2) of the original image storage layer 10 is displayed on the image synthesizing device 13 as shown in FIG. It is sent, written in the VRAM 12, and displayed on the display screen.

14 to 16 are views showing the state of the display screen 15 in the moving operation of the object described above together with the relative relationship with the original image storage layer 10.

As shown in FIG. 14, the display screen 1
It is assumed that the object 122 is selected on 5 and then the object 122 is moved to a position 125 outside the display area 121.

First, as shown in FIG. 15, the user operates the scroll bars 151 and 153 to operate the object 12
2 is moved to the position 126, the relative position of the object 122 in the display screen 15 does not change (the object 122 remains stationary), and the background image is moved from the region 121 to the region 127 including the destination position 126. Changed to jump to.

Further, assuming that the object is moved to the final movement destination position 125 by operating the scroll bars 151 and 153, as shown in FIG. 16, the object 122 remains stationary in the display screen 15 and the background image is displayed. The area 128 is changed to the destination position 125. In this state, if the user presses the right button of the mouse, the movement ends.

As described above, according to this embodiment, when the object is moved, the background image is changed from the movement source to the movement destination all at once, so that the image rewriting process can be completed in a short time and at high speed. It is possible to move. Further, since the object is constantly displayed on the screen in a stationary state during movement, the user can accurately position the moving destination of the object, and good operability can be obtained.

The preferred embodiment of the present invention has been described above, but the present invention can be implemented in various modes other than this embodiment. For example, in the above embodiment, the selected object remains stationary on the display screen during its movement, but in the case of a short distance movement such as movement within the display screen, the background is kept stationary with respect to the screen. It may be preferable to move the object. In such a case, depending on the movement distance, if the movement distance is shorter than the predetermined range, the first movement mode in which the background is stationary and the object is moved is selected, and if the movement distance is longer than the predetermined range, the above-mentioned execution is performed. As in the example, mode switching can be performed so as to select the second movement mode in which the object is stationary and the background is moved. still,
In the first mode, for example, in the image synthesizing apparatus, the object image from the moving image storage layer is relatively shifted in the moving direction with respect to the display area image from the original image storage layer, and the VRAM is rewritten to synthesize the object image. The method or other known methods can be used.

[0044]

As described above, according to the present invention,
Since it is possible to speed up the moving process of the object and accurately arrange the objects, the operability of the user is improved.

[Brief description of drawings]

FIG. 1 is an operation explanatory diagram of a conventional moving method.

FIG. 2 is an operation explanatory view of a conventional moving method.

FIG. 3 is an operation explanatory diagram of a conventional moving method.

FIG. 4 is an explanatory view of problems of the conventional moving method.

FIG. 5 is a block diagram showing the overall configuration of an embodiment of the present invention.

FIG. 6 is a schematic diagram showing a relationship between each image storage layer and a screen in the embodiment.

FIG. 7 is a diagram showing a flow of image data in the embodiment.

FIG. 8 is a diagram showing a flow of image data in the embodiment.

FIG. 9 is a diagram showing a flow of image data in the embodiment.

FIG. 10 is a diagram showing a flow of image data in the embodiment.

FIG. 11 is a diagram showing a flow of image data in the embodiment.

FIG. 12 is a diagram showing a flow of image data in the embodiment.

FIG. 13 is a flowchart showing the flow of processing in the embodiment.

FIG. 14 is a diagram showing an operation of a screen in the embodiment.

FIG. 15 is a diagram showing the flow of image data in the embodiment.

FIG. 16 is a diagram showing the flow of image data in the embodiment.

[Explanation of symbols]

 10 Original Image Storage Layer 11 Moving Image Storage Layer 12 VRAM 13 Image Synthesizer 14 Controller 15 Display Screen 16 Mouse 17 Keyboard 18 Computer

Claims (5)

[Claims] 1. A method of moving an object on a displayed partial area of an original image, comprising: an input device for inputting a movement amount of the object; and an original image storage layer storing the entire original image, A moving image storage layer that stores an image of the object; and a read / write operation for controlling the original image storage layer and the moving image storage layer, wherein the original image differs depending on a movement amount from the input device. A controller for reading a partial area into the original image storage layer, a partial area of the original image read from the original image storage layer, and an image of the object read from the moving image storage layer And an image synthesizing device for synthesizing and writing in a video memory for display. 2. The method according to claim 1, wherein the input device can input a movement start command and a movement end command for the object, and the controller responds to the movement start command, Transferring an image from the original image storage layer to the moving image storage layer, and transferring an image of the object from the moving image storage layer to the original image storage layer in response to the movement end command. Image moving method. 3. The system according to claim 1, wherein when the controller receives the movement amount, the controller causes the original image storage layer to read a partial area corresponding to a movement destination determined by the movement amount. Image moving method. 4. The method of claim 1, wherein when the image compositing device composites an image of the object from the moving image storage layer with an image of a partial area of the original image, the image of the object is An image moving method characterized in that composition is performed so as to be fixed at a fixed position in the video memory. 5. A method of moving an object on a displayed partial area of an original image, the method comprising: reading the image of the object from a moving image storage layer storing the image of the object; A step of sequentially selectively reading out different partial areas of the original image from the stored original image storage layer; a step of combining the read image of the object and an image of the partial area of the original image A method of moving an image, comprising: writing the combined image in a video memory for a display.