JP3073866B2 - Graphic processing unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber band dragging function in a graphic processing apparatus having a function such as CAD. The present invention also relates to a method of adding a rubber band dragging function to an existing graphic processing apparatus having a drawing function such as CAD.

[0002]

2. Description of the Related Art A conventional graphic processing apparatus having no rubber band dragging function displays a graphic when the shape and size of the graphic are determined. FIG. 9 is a configuration diagram showing a conventional graphic processing apparatus having no rubber band dragging function. In FIG. 9, reference numeral 1 denotes command analysis means;
Is coordinate input means, 3 is drawing means, 4 is data creation means,
5 is a display means, 6 is a storage unit, 7 is a display device, 8 is a mouse, and 9 is a keyboard. The drawing means 3 is composed of a data creation means 4 and a display means 5. Next, the procedure of the drawing processing will be described.

First, a command for creating a figure is input to the command analysis means 1 from the keyboard 9 or the mouse 8. The input commands include a line command for creating a line, a circle command for creating a circle, a rectangular command for creating a square, and the like. Command analysis means
Parse the entered command. The coordinate input unit 2 receives a coordinate input for drawing based on the command analyzed by the command analysis unit 1. When all the data required to create the figure are input, the drawing means 3
Data for drawing is calculated by the data creating means 4, and the drawing data is stored in the storage unit 6. The display unit 5 extracts the drawing data stored in the storage unit 6 by the data creating unit 4 and displays a graphic created based on the drawing data on the display device 7. When a new figure is to be created, the above processing is sequentially performed again from the input of the drawing command.

[0004]

SUMMARY OF THE INVENTION Conventional rubber bands
Since the graphic processing apparatus having no dragging function is configured as described above, it has the following problems. (A) When the shape and size of the figure are determined, the figure is displayed on the display device. That is, it is not possible to confirm what kind of figure is to be created until all the conditions necessary for creating the figure have been input and confirmed. (B) When changing the size or line length of an existing figure,
For the same reason as in (a) above, it is not possible to change the size or length while checking it. (C) When moving (including copying) existing figures and lines,
The display position cannot be confirmed until the position of the movement destination is determined.

[0005] The present invention has been made to solve the above problems, and has the following objects. (A) When a condition for creating a figure is input, even if the condition has not been determined, the figure is displayed based on the undetermined condition so that the creator can confirm the condition while visually checking the condition. I do. (B) When changing the size or line length of an existing figure,
Even if the change condition has not been determined, a figure is displayed according to the input change condition, and the creator can confirm the changed condition while checking it visually. (C) When moving (including copying) existing figures and lines,
Even if the position of the movement destination is undetermined, a graphic is displayed according to the movement destination input at a time, so that the creator can determine the position of the movement destination while checking it visually.

[0006]

According to a first aspect of the present invention, there is provided a graphic processing apparatus in which a display data generating means newly provided in an existing drawing means responds to a change in coordinates inputted from the coordinate input means. The display data for temporarily displaying the graphic is created, and the rubber band dragging display means provided in the graphic processing device further inputs the graphic based on the display data generated by the display data generating means into the coordinate input. Display corresponding to the change in the coordinates input from the means, setting means sets whether or not the display data creating means and the rubber band dragging display means can be operated, and determining means based on the setting of the setting means Rutotomoni selectively operated <br/> data creation means and rubberband dragging display means for the display, the graphics processor, the display data
A storage unit for registering the display data, wherein the display data creating means is provided.
Registering means for registering the display data in the storage unit,
Retrieval of the rubber band dragging display means
The means is based on the display data registered in the storage
Is displayed.

The graphic processing apparatus according to the second invention is characterized in that
In the graphic processing device according to the first invention, the first registration means provided in the registration means of the display data creation means registers display data for the first time, and the update registration provided in the registration means of the display data creation means. The means updates the display data registered by the first registration means.

[0008]

In the graphic processing apparatus according to the first invention, the rubber band / dragging display means displays the graphic based on the display data created by the display data creation means and the coordinates to be inputted. For this reason, the figure creator can check the trajectory of the figure accompanying the change in the coordinates. Further, it is possible to select whether or not to operate the display data creating means and the rubber band dragging display means by the setting means and the determining means. For this reason, only the function of the conventional graphic processing apparatus can be used without using the rubber band dragging function. Also, the display data creation means creates
The registration means registers the display data in the storage unit, and the search means
Searches the display data stored in the storage unit.
Rubber band dragging display means
Show shape. Therefore, display data creation means and rubber
To develop the Bando-dragging display means independently by individual
It can be operated via the storage unit. Therefore already
Modification to existing drawing means is only for display data creation means
This reduces the impact on existing systems and
-A band dragging function can be realized.

Furthermore, the graphics processing apparatus in the second invention, the update registration means high-speed processing possible with it reduces the amount of storage unit so update only registered display data Ri changed part by initial registration means become.

[0010]

[Embodiment 1] In this embodiment, a configuration of a graphic processing apparatus which enables a rubber band dragging process will be described with reference to FIG. First, the definition of rubber band dragging will be described with reference to the diagram illustrating the rubber band and dragging operation in FIG. (1) What is a rubber band? The displayed graphic changes as the mouse pointer moves. FIG. 2A shows an example. The mouse is moved to the point a on the circle drawn by the solid line in FIG. Next, the cursor is moved from point a to point b along the dotted line c in the figure. As the cursor moves, the size of the circle increases as indicated by the dotted line in the figure. b
Click the mouse button if you want to confirm the size of the circle when you move the cursor to the point. After confirmation,
The circle is drawn with a solid line. (2) What is dragging? As the mouse pointer moves, the displayed figure does not change.
Only the display position changes. FIG. 2B shows an example diagram. The mouse is moved to the point a on the circle drawn by the solid line in FIG. Next, the cursor is moved from point a to point b along the dotted line c in the figure. With the movement of the cursor, the size of the circle does not change, as in the circle drawn by the dotted line in the figure, and only the position of the circle moves. If the user wants to determine the size of the circle when the cursor is moved to the point b, he or she clicks the mouse button. After confirmation, the circle is drawn with a solid line.

Next, the configuration of the graphic processing apparatus according to the present invention will be described. FIG. 1 is a configuration diagram of a graphic processing apparatus according to the present invention. In FIG. 1, reference numeral 10 denotes a setting unit, which allows the graphic creator to set whether to operate the rubber band dragging function. Reference numeral 1 denotes a command analysis unit that recognizes input of a drawing command and analyzes a rubber band dragging command. Reference numeral 2 denotes a coordinate input unit for inputting coordinate values of a current position of a pointing device such as a mouse 8. During the rubber band / dragging display, is the coordinate value of the current position of the pointing device input (sampling mode) or the coordinate value at the time of an event such as pressing of an operation instruction button or the like (event mode)? It has a function to determine The event mode is always set when the setting means 10 is set so that the rubber band dragging function is not operated. Reference numeral 3 denotes a drawing means, and display data is created by the display data creation means 12 based on the judgment of the judgment means 11 during the rubber band dragging display. If the display data created by the display data creation unit 12 is data to be registered for the first time, the first registration unit 1
Registered on the storage unit 6 (database) by 3a.
The display data created by changing the existing display data is registered in the storage unit 6 (database) by the update registration unit 13b. In cases other than during the rubber band dragging display, the graphic data is created on the storage unit 6 (database) by the data creating means 4, and the graphic is displayed on the display device 7 by the display means 5. If the rubber band / dragging display is not being performed based on the determination by the determination unit 14, the command analysis unit waits for a command input. During the rubber band dragging display, the graphic is displayed on the display device 7 by the rubber band dragging display means 15. At this time, the search unit 16 retrieves the display data registered in the storage unit 6. After the graphic is displayed, the coordinate input means 2 waits for coordinate input during the rubber band dragging display.

So far, the configuration of the graphic processing apparatus according to the present invention has been described.
A more detailed operation will be described below. FIG. 3 is a flowchart showing the processing procedure of the drawing means in this embodiment. FIG. 4 is a diagram illustrating an example of a case where a circle in this embodiment is subjected to rubber band processing. According to the flowchart of FIG. 3, the order of processing will be described with reference to FIG.

The mouse is moved from the point a1 on the circle drawn by the solid line in FIG. 4 along the dotted line c1, the cursor is moved to the point b1, and rubber band processing is performed. In the drawing means 3, first, the determination means 11 determines whether the current mode is the sampling mode or the event mode (S
1a). In the case of the sampling mode, the display data creating means 12 creates display circle data and registers it in the storage unit 6 (S2a). If the mode is not the sampling mode, circle data is created by the data creation unit 4 (S3a), and circle display is performed by the display unit 5 (S4).
a). The display of the circle data in the sampling mode is performed by the rubber band dragging display means 15 separately from the drawing means 12 as described above.

When the rubber band dragging function is set to be operable by the setting means 10 as described above, the end point (point b1) follows the movement of the coordinates as shown in FIG.
The change of the circle display up to can be confirmed visually. For this reason, the figure creator may confirm the coordinates by clicking the mouse when the desired shape is obtained, while checking the change in the circle display. In addition, when the figure is deformed, but it is desired to return to the original state, since the circle data is stored in the storage unit 6 until it is determined, a temporary figure display (shown by a dotted line in FIG. 4). Circle) disappears and only the original solid circle is displayed. Further, the graphic data and the display data are also managed separately in the storage unit 6. Therefore, after the rubber band dragging process, even if the graphic creating process is terminated without determining the coordinates, the initially created graphic is registered in the storage unit. Therefore, the rubber band dragging process can be performed on this figure again. vice versa,
If the rubber band dragging function is set to be inoperable, the above-described operation of checking the change in the circle display cannot be performed. The graphic creator can select both the conventional drawing function and the drawing function including the rubber band dragging function by making settings according to the purpose.

In the graphic processing apparatus of this embodiment,
Work without rubber band dragging function
The following steps are performed for the graphic processing apparatus provided with the drawing means 3.
Realize more rubber band dragging function. (Step 1) A rubber band / draggin is added to the drawing means 3
Data creation means 1 for creating display data for use
(2) a step of adding the display data to the graphic processing device;
A rubber for displaying the display data created by the means 12.
-Rubber to add band dragging display means 15
A band dragging display means adding step, (step 3) a rubber band dragging means
Added setting means 10 for setting selection of use of ging function
Setting means additional step of, the display to determine the settings (step 4) the setting means 10
Data creation means 12 and rubber band dragging table
Determining means for adding the determining means 11 for operating the indicating means 15
Step addition process.

Then, according to the above steps 1-4, the conventional graphic
Display data generating means 1 for the functions of the processing device;
2 and rubber band dragging display means 15
Rubber-band dragging function
To achieve. In addition, the display data creation procedure
Step 12, and rubber band dragging display means 1
5 and a setting means 10 for selecting whether to operate 5
Since it has a step of adding means 11, the conventional graphic processing
Rubber band, without compromising the function of the device
Achieve dragging.

[0017] Therefore, the display data creating means additional processing
Process and rubber band dragging display means additional processing
If you use the process, it has a rubber band dragging function
No graphics processor program impact on existing functions
Minimize rubber band dragging function
There is an effect that can be changed to something. In addition, settings
If the means addition step and the judgment means addition step are used,
Graphic processing device without barband dragging function
Easily change the program without losing the existing functions of
There is an effect that can be.

In the above, the rubber band processing has been described, but the dragging processing has the same processing procedure.

Embodiment 2 FIG. In the first embodiment, especially, the drawing means of the circle has been described. However, the drawing means of the horizontal dimension and the angle dimension in FIG. 3 can be performed in the same processing procedure. For example, the rubber band processing of the horizontal dimension means that a point a2 as shown in FIG.
Is to move the mouse to the point b2 along the dotted line c2. In addition, the rubber band processing of the angular dimension is shown in FIG.
As shown in (B), moving the mouse from point a3 to point b3 along dotted line c3.

Embodiment 3 FIG. In the first embodiment, it has been described that the storage unit 6 manages the graphic data and the display data separately. Thus, the display data can be deleted from the storage unit 6 after the coordinates are determined.

Embodiment 4 FIG. In this embodiment, a method of adding a processing routine for display data creating means for realizing a rubber band dragging function to an existing processing routine for drawing means will be described.

The processing of the drawing means 3 can be roughly divided into three patterns. The first is rubber band processing, which is a pattern in which the shape of display data constantly changes. The second is a dragging process of an existing element, which is a pattern in which only the display position of already existing data changes. The third is a dragging process of a new element, which is a pattern in which display data is created once, and thereafter only the display position changes. In this embodiment, the first pattern will be described. The second pattern will be described in Example 5, and the description of the third pattern will be described in Example 6.

FIG. 6 is a diagram expressing an additional example of rubber band processing in this embodiment in a pseudo program language. A method of adding a rubber band processing routine to an existing processing routine for drawing means will be described below with reference to FIGS. 1, 3, and 6. FIG.

The processing routine for the plotting means 3 shown in FIG. 6 is roughly divided into a processing routine for the display data generating means 12 and a processing routine for the existing data generating means 4 and the display means 5. I have. Further, the processing routine for the display data creating means 12 is divided into two, a processing routine for the initial registration means 13a and a processing routine for the update registration means 13b. The branch of each process is performed by a determination statement for determining the current mode (case instructions 11a, 11b, and 11c in FIG. 6). The current mode is obtained by a mode inquiry function (20 in FIG. 6). 11a determines whether it is the first registration in the sample mode, and 11b
Determines whether the sample mode is the second or later time, that is, update registration, and 11c determines whether the event mode is set. The first registration unit 13a analyzes parameters given to activate a processing routine for the display data creation unit 12, and then calculates graphic data. The calculated data is newly registered in the storage unit 6 (database) as display data. At the time of registration, a registration key, the number of data elements, an input port number, a drawing number, a matrix indicating the amount of movement of the figure from the time of initial registration, and the like are stored in the database. The above is the first registration means 13
This is the process performed in a.

Next, the update registration means 13b performs parameter analysis in the same manner as the first registration means 13a, and then calculates graphic data. When registering the display data in the storage unit 6, the registration key created by the initial registration unit 13a is used. In this update registration, re-registration is performed only for a portion of display data already registered in the storage unit 6 that has been changed.

If it is determined that the event mode is set in the step 11c, the processing of the data creation means 4 and the display means 5 is performed. In the processing routine for the data creation means 4, parameters are analyzed in the same manner as in the first registration means 13a.
Calculate figure data. Thereafter, the calculated graphic data is registered as new data in the storage unit 6 (database). In the processing routine for the display means 5, a graphic is displayed on the display device 7 based on the graphic data created by the processing routine for the data creating means 4.

As described above, in this embodiment, the rubber band function can be easily implemented by adding the judgment statements 11a, 11b, 11c for judging the current mode to the processing routine for the existing drawing means 3. Has been realized.

Embodiment 5 FIG. In this embodiment, a method of adding a dragging process of an existing element to a processing routine for the existing drawing means 3 will be described.

FIG. 7 is a diagram expressing an additional example of the dragging process of the existing element in this embodiment in a pseudo programming language. An additional method for adding a processing routine for dragging an existing element to the processing routine for the existing drawing means 3 will be described below with reference to FIGS. 1, 3, and 7.

The processing routine for the plotting means 3 shown in FIG. 7 is broadly divided into two, a processing routine for the display data generating means 12 and a processing routine for the existing data generating means 4 and display means 5. ing. Further, the processing routine for the display data creating means 12 is divided into two, a processing routine for the initial registration means 13a and a processing routine for the update registration means 13b. The branch of each process is performed by a determination statement (case instructions 11a, 11b, 11c in FIG. 7) for determining the current mode, as in the fourth embodiment. Also, the current mode is a function of the mode inquiry.
Acquired by 20 in. 11a determines whether it is the first registration in the sample mode, 11b determines the second or later time in the sample mode, that is, whether it is update registration, and 11c determines whether it is the event mode. In the first registration means 13a, the display data creation means 1
The analysis of parameters given to activate the processing routine for 2 is performed, and then the calculation of graphic data is performed.
The calculated graphic data is registered in the storage unit 6 (database) as display data. The registration contents at this time are a matrix using a registration key, the number of data elements, an input port number, a drawing number, and a matrix, as in the above embodiment. The above is the processing performed by the first registration unit 13a.

Next, the processing performed by the update registration means 13b will be described. First, parameters are analyzed and graphic data is calculated in the same manner as in the first registration unit 13a. The calculated data is registered in the storage unit 6 (database) as display data, but only the changed part is updated at this time. In this case, since the tracking processing is for the existing element, the matrix indicating the movement amount from the first registration of the graphic is updated. The above is the processing performed by the update registration unit 13b.

If it is determined in the step 11c that the current mode is the event mode, the processes of the data creating means 4 and the display means 5 are performed in the same manner as in the fourth embodiment. That is, the parameters are analyzed first, and then the graphic data is calculated. The calculated data is registered in the storage unit 6 (database) as graphic data. In this case, since the processing is for an existing element, registration is performed in the form of re-registration to existing data. After the registration is completed, a processing routine for the display means 5 displays the graphic data on the display device 7.

As described above, in this embodiment, the fourth embodiment is used.
Determination statements 11a and 11 for determining the current mode
By adding b, 11c to the processing routine for the existing drawing means 3, the dragging function of the existing elements can be easily realized.

Embodiment 6 FIG. In this embodiment, a method for adding a processing routine for dragging processing of a new element to an existing processing routine for drawing means will be described.

FIG. 8 is a diagram expressing an additional example of the dragging process of a new element in this embodiment in a pseudo programming language. A method of adding a processing routine for dragging a new element to the existing processing routine for the drawing means 3 will be described below with reference to FIGS.

The processing routine for the drawing means 3 in FIG. 8 is roughly divided into two processing routines, one for the display data creation means 12 and the other for the existing data creation means 4 and the display means 5. Further, display data creating means 12
The processing routine for the first registration means 13a and the processing routine for the update registration means 13b are two.
Divided into two. Each processing branch is performed by a determination statement for determining the current mode (case instructions 11a and 11 in FIG. 8).
b, 11c). The current mode is obtained by the function for mode inquiry 20) in FIG. 11a determines whether it is the first registration in the sample mode, 11b determines whether it is the second or later registration in the sample mode, that is, the update registration, and 11c determines whether it is the event mode. The first registration unit 13a analyzes the parameters given to activate the processing routine for the display data creation unit 12, as in the fourth embodiment, and then calculates the graphic data. Since this embodiment is a dragging process of a new element, the calculated data is used as display data in the storage unit 6 (database).
Is newly registered as graphic data. To register,
A registration key, a matrix indicating the coordinates of a figure by the number of data elements, and the like. The above is the processing performed by the first registration unit 13a.

Next, the update registration means 13b also analyzes parameters in the same manner as in the fourth embodiment and calculates graphic data. The calculated graphic data is registered as display data in the storage unit 6 (database) by updating existing data. At this time, the matrix indicating the amount of movement since the first registration of the graphic is updated.

If it is determined in the step 11c that the current mode is the event mode, the processes of the data creating means 4 and the display means 5 are performed. First, in the processing of the data creating means 4, parameter analysis is performed and graphic data is calculated. The calculated data is newly registered in the storage unit 6 (database) as graphic data. Thereafter, in a processing routine for the display means 5, processing for displaying a graphic on a display device or the like is performed.

As described above, in this embodiment, the dragging function of a new element can be easily performed by adding the determination statements 11a, 11b, and 11c for determining the current mode to the processing routine for the existing drawing means 3. Has been realized.

Embodiment 7 FIG. In the above-described fourth to sixth embodiments, the processing routine for the existing drawing means is divided into three processing patterns of rubber band processing, dragging processing of an existing element, and dragging processing of a new element. An additional method of adding means has been described. Further, when a processing routine for the rubber band dragging display unit is added, the display data registered in the storage unit 6 by the processing of the display data creation unit 12 is extracted, and the display data is displayed on the display device 7 based on the extracted data. As a temporary data, a processing routine for displaying a temporary figure by, for example, a dotted line is created independently of the processing routine of the display data creating means, and the rubber band dragging is performed independently of the processing routine of the drawing means 3. The activation may be related to the processing routine for the display means. However, the processing routine for the rubber band dragging display means is activated only when the current mode is the sampling mode. Because of this rubber band
At the beginning of the processing routine for the dragging display means, a determination statement for determining the current mode (corresponding to the function 20 for acquiring the current mode in FIGS. 6, 7, and 8 and a determination statement 11c for determining the current mode). Judgment sentence) must be added. Further, a processing routine for the setting unit 10 is also created as an independent processing routine. This is activated prior to the processing routine for the command analysis means 1. The setting method may be such that the figure creator makes an input using the mouse 8 or the keyboard 9.
As described above, since the rubber band / dragging display means and the setting means do not exist in the existing graphic processing apparatus, they may be created as new and independent processing routines.

[0041]

According to the first aspect, the rubber band dragging display means displays a figure based on display data in accordance with a change in input coordinates. by this,
The graphic creator has the effect of determining the coordinates at the place where the desired graphic is displayed, while checking the changing graphic. The setting unit can set whether to operate a unit for realizing the rubber band dragging process. Therefore, the graphic creator can use the graphic processing device as a device having the conventional function or as a device having a rubber band dragging function simply by changing the setting .
In addition, the display data registered in the storage unit by the registration unit.
Is searched by the search means, and based on the search result,
The rubber band dragging display means
Show. Therefore, display data creation means and rubber ban
De-dragging display means as an independent module
Can be created, with minimal modifications to existing modules
effective.

Further, according to the second invention, since the registration means is divided into the first registration means and the update registration means, there is an effect that the second and subsequent registrations need to be made only for the updated part.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a graphic processing apparatus according to the present invention.

FIG. 2 is a diagram illustrating a rubber band and a dragging operation according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing a processing procedure of a drawing unit according to the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of a case in which a circle is subjected to rubber band processing in the first embodiment of the present invention.

FIG. 5 is a diagram showing an example of a case where a lateral dimension and an angular dimension in the second embodiment of the present invention are subjected to rubber band processing.

FIG. 6 is a diagram illustrating an additional example of rubber band processing in a fourth embodiment of the present invention in a pseudo programming language.

FIG. 7 is a diagram showing, in a pseudo programming language, an additional example of dragging processing of an existing element in the fifth embodiment of the present invention.

FIG. 8 is a diagram showing, in a pseudo programming language, an additional example of the dragging process of a new element in the sixth embodiment of the present invention.

FIG. 9 is a configuration diagram showing a conventional graphic processing apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 command analysis means 2 coordinate input means 3 drawing means 4 data creation means 5 display means 6 storage unit 7 display device 8 mouse 9 keyboard 10 setting means 11 determination means 12 display data creation means 13 registration means 13a first registration means 13b update registration Means 14 Judgment means 15 Rubber band dragging display means 16 Search means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06T 11/60-11/80 G06F 17/50

Claims (2)

(57) [Claims] 1. A command analyzing means for analyzing a command, a coordinate inputting means for inputting coordinates, and a command analyzed by the command analyzing means.
In graphics processing apparatus having a drawing means having no rubberband dragging ability to display graphics using the coordinate input by the coordinate input means, to the existing drawing means, the coordinates inputted from the coordinate input means in response to a change and create display data for temporary display graphics, new with the added display data generating means, to the graphics processing apparatus, display data created by said display data generating means Newly added rubber band and dragging display means for displaying a figure based on the coordinates corresponding to the change in the coordinates inputted from the coordinate input means, and the operation of the display data creating means and the rubber band and dragging display means to set the permission, and the newly added <br/> setting means determines the setting by said setting means, and said display data generating means Selectively operating the bar band dragging display means, newly registers the added determination means, the display data, the newly added data
A display data creation unit, wherein the determination unit sets the
By determining the setting by the means, the display data
Data creation means and rubber band dragging display means
The database the display data when it is determined that the to work
It has a registration means for registering the over scan, the rubberband dragging display means, the determination
The means determines the setting by the setting means,
The above display data creation means and rubber band dragging
Said database if it is determined that operating the grayed display means
A search means for displaying graphical searches the display data registered in the over scan, that said determining means determines the setting by said setting means
The above display data creation means and rubber band
If you decide not to activate the lagging display,
The existing drawing means is analyzed by the command analysis means.
Input by the coordinate input means based on the command
A graphic processing apparatus for displaying a graphic using coordinates . 2. The registration means of said display data creation means.
Updates and initial registration means for registering for the first time for display data, the display data that has been registered by the initial registration means
2. The method according to claim 1, further comprising update registration means.
Graphic processing unit.