JP2907282B2 - Moving object simulation apparatus and high speed drawing processing method for moving object simulation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving object simulation apparatus and a high speed drawing method for moving object simulation, and more particularly to a method for drawing a dynamic object (hereinafter referred to as a moving object) such as a flight control simulation at regular intervals. The present invention relates to a moving body simulation apparatus that simulates the movement by correcting the movement and a high-speed drawing processing method of the moving body simulation.

[0002]

2. Description of the Related Art Conventionally, in this kind of high-speed drawing processing method for a moving object simulation, in order to display a moving object on a display screen without feeling uncomfortable, simulation data necessary for display is stored in a main storage unit which can be accessed at a high speed in advance. The simulation data in the main storage unit is accessed as needed.

An example of a conventional high-speed drawing processing method is disclosed in Japanese Patent Application Laid-Open No. Hei 1-204189. The high-speed drawing processing method disclosed in this publication is a method for rapidly drawing a motion simulation of a robot. In drawing a polygon that forms the shape of a robot, a number of frequently used drawing commands are combined. By storing the pattern in the main storage unit as a procedure, the number of accesses to the main storage unit is reduced when accessing the data stored as a procedure than when accessing the drawing command unit. The rendering process is performed at a high speed.

[0004]

The first problem is that, in the conventional high-speed drawing method, the amount of simulation data used for drawing is small, and all the simulation data has a data amount that can be held in the main storage unit. If the simulation data used for the drawing process has a huge data amount and cannot be held in the main storage unit and must be managed by a database, the speed of drawing cannot be increased.

A first object of the present invention is to provide a moving object dynamically displayed in accordance with a logical time even when a large amount of simulation data including display coordinates and display time of the moving object managed by a database is used. It is an object of the present invention to provide a moving object simulation apparatus for increasing the drawing speed of a moving object.

A second object of the present invention is to dynamically display a moving object in accordance with a logical time even when using a large amount of simulation data of a moving object consisting of display coordinates and display time managed in a database. It is an object of the present invention to provide a high-speed drawing processing method for moving body simulation for increasing the drawing speed of a moving body.

Further, a third object of the present invention is to provide a recording medium on which a program for realizing the high-speed drawing processing of the moving object simulation is recorded.

[0008]

SUMMARY OF THE INVENTION A moving object simulation apparatus according to the present invention simulates the movement of a moving object by redrawing the moving object at regular time intervals using simulation data. A database for managing simulation data consisting of discrete display coordinates and display times of the body, and display determination data consisting of information on the presence / absence of screen display of the mobile body, a screen display start time, and a screen display end time are stored for each mobile body. The main storage unit and, at regular time intervals, refer to the display determination data of the moving object in the main storage unit, and when the information on the presence or absence of screen display is displayed, the logical time is the screen display start time and the screen display end time. It is determined whether the logical time is between the screen display start time and the screen display end time. The mobile object is displayed based on the display coordinates and display time obtained by accessing the simulation data in the area. If the logical time is not between the screen display start time and the screen display end time, the displayed mobile object To delete the screen display information, and if the screen display information is not displayed, if the logical time is between the screen display start time and the screen display end time, the simulation data in the database is deleted. And a moving body simulation means for displaying the moving body based on the display coordinates and the display time obtained by accessing, and setting the information on the presence / absence of screen display to the presence of display.

A high-speed drawing method for a moving body simulation according to the present invention is a drawing processing method for a moving body simulation for simulating the movement of a moving body by redrawing the moving body at regular intervals using simulation data. In a step of, at regular time intervals, referring to the display determination data of the moving object in the main storage unit to determine whether the information on screen display is displayed or not; and If the logical time is between the screen display start time and the screen display end time, the moving object is displayed based on the display coordinates and display time obtained by accessing the simulation data in the database, and the logical time is displayed on the screen. If it is not between the start time and the screen display end time, the displayed moving object is erased and the information on the presence or absence of the screen display is turned off. If the logical time is between the screen display start time and the screen display end time when the screen display information is not displayed, the display coordinates and display time obtained by accessing the simulation data in the database And displaying information on the presence / absence of screen display in the presence of display.

According to the recording medium of the present invention, it is possible for a computer to refer to display determination data of a moving object in a main storage unit at regular time intervals to determine whether or not information on screen display is displayed. If the display presence information indicates that the display is present, it is determined whether the logical time is between the screen display start time and the screen display end time, and the logical time is determined between the screen display start time and the screen display end time. For example, a moving object is displayed based on the display coordinates and display time obtained by accessing the simulation data in the database, and is displayed if the logical time is not between the screen display start time and the screen display end time. Procedure for erasing the moving object and turning off the display of screen display, and when the information of screen display is not displayed, the logical time is the screen display start time and screen display end time. It judges whether or not it is in the middle, and if the logical time is between the screen display start time and the screen display end time, the display of the moving object is displayed using the display coordinates and display time obtained by accessing the simulation data in the database. Then, a program for executing a procedure for turning on the information on the presence or absence of screen display is recorded.

[0011]

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

FIG. 1 is a block diagram showing a configuration of a moving object simulation apparatus according to a first embodiment of the present invention. This mobile object simulation device includes a data processing device 1, a keyboard 2, simulation data 3
The main part is composed of the database 3 storing the data 1 and the display device 4. Data processing device 1
Is a main processor 1a, a read-only storage unit 1b,
The main storage unit 1c includes the main storage unit 1c and the like.
Above, a mobile object simulation program 11 and display determination data 12 are stored.

FIG. 2A is a diagram exemplifying a moving object displayed on the display device 4, and # 1 to # 3 indicate symbols of the moving object. Each of the moving bodies # 1 to # 3 has a moving body name N1 to N3, respectively.

FIG. 2 (b) shows simulation data 31 consisting of discrete display coordinates and display times of the moving objects # 1 to # 3 in FIG. 2 (a) managed by the database 3. . The simulation data 31 includes m sets of display coordinates (X1
_1, Y1 ₁₎ and display time T1 ₁ ~ display coordinates (X
1 _m, Y1 _m) and display time T1 _m is stored, n sets of display coordinates under the mobile name N2 (X2 _1, Y2 ₁₎ and the display time T2 ₁ ~ display coordinates (X2 _n, Y2 _n) and The display time T2 _n is stored, and k is stored under the mobile unit name N3.
A set of display coordinates (X3 ₁ , Y3 ₁ ) and a display time T3 ₁
~ Display coordinates (X3 _k , Y3 _k ) and display time T3 _k are stored.

FIG. 2C shows a display in which the screen display flag, the screen display start time and the screen display end time of the moving object are managed in the main storage unit 1c in the simulation data 31 in the database 3 in FIG. 2B. Judgment data 1
2 is shown. The display determination data 12 includes a screen display flag F ₁ and a screen display start time TS under the mobile unit name N1.
₁ (= T1 ₁ ) and the screen display end time TE ₁ (= T1
_m ) is stored, and a screen display flag F ₂ , a screen display start time TS ₂ (= T2 ₁ ), and a screen display end time TE ₂ (= T2 _n ) are stored under the mobile body name N2. , The screen display flag F ₃ and the screen display start time T
S ₃ (= T3 ₁ ) and screen display end time TE ₃ (= T3
3 _k ) is stored. The moving object is displayed on the display device 4 from the screen display start time and is displayed until the screen display end time.

FIG. 3 is a flowchart showing a procedure of a high-speed drawing processing method for moving object simulation according to the first embodiment of the present invention. Referring to FIG. 3, the procedure of the high-speed drawing processing method of the moving object simulation according to the first embodiment includes a screen display flag determining step S301, a logical time comparing step S302, and a logical time comparing step S3.
03, a moving object position coordinate updating step S304, a moving object erasing step S305, and a moving object displaying step S30.
6, a screen display flag off step S307, and a screen display flag on step S308.

Next, the operation of the moving object simulation apparatus according to the first embodiment configured as described above will be described together with the high speed drawing processing method for moving object simulation according to the first embodiment.

First, when the simulation data 31 of a moving object having discrete display coordinates and display times as shown in FIG. ), The screen display flag of each moving object is initialized to off (no display), the first display time is set as the screen display start time from the simulation data 31 of the database 3, and the last display time is set as the screen display end. By setting the time, the main storage unit 1
The display determination data 12 is stored in c.

Next, the data processing apparatus 1 uses the screen display flag, screen display start time, and screen display end time of the moving object stored in the main storage unit 1c when displaying the moving object at regular time intervals. The display determination data 12 is accessed, and it is determined whether or not to access the database 3 in which the simulation data 31 of the moving object is stored according to the flowchart shown in FIG.

More specifically, it is determined from the screen display flag whether or not the moving object is already displayed on the screen (step S301).
Control is transferred to step S3.
Transfer control to 03.

In step S302, assuming that the logical time of the simulation at the time of performing the display determination of the moving object is T, the logical time T is compared with the screen display start time and the screen display end time of the mobile object, and the logical time T Is between the screen display start time and the screen display end time, the simulation data 31 in the database 3 is accessed to obtain the display coordinates of the moving object whose display time is the logical time T, and the screen of the display device 4 is displayed. The position coordinates of the upper moving object are updated (step S304).

If the logical time T is not between the screen display start time and the screen display end time in step S302, the displayed moving object is deleted (step S305), and the screen display flag of the moving object is turned off. Set (Step S30)
7).

In step S303, step S303
If the logical time T is between the screen display start time and the screen display end time, the simulation data 31 of the database 3 is accessed to obtain the display coordinates of the moving object, and the display device A new moving object is displayed on the screen of No. 4 (step S306), and the screen display flag of the moving object is turned on (displayed) (step S308).

Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 4, the second embodiment of the present invention includes a recording medium 5 on which a moving object simulation program 11 is recorded. The recording medium 5 may be a magnetic disk, a semiconductor memory, or another recording medium.

Mobile object simulation program 11
Is read from the recording medium 5 into the data processing device 1 and controls the operation of the data processing device 1. The operation of the data processing apparatus 1 under the control of the mobile object simulation program is exactly the same as that of the mobile object simulation apparatus according to the first embodiment, and thus the detailed description is omitted.

[0027]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 5 is a diagram showing an example of the trajectory of the moving object displayed on the display device 4 in the moving object simulation apparatus according to the first embodiment. In FIG. 5, P1 to P5 represent relay points of the moving object. Each of the relay points has display coordinates and a display time, the display of the moving object starts from the relay point P1, moves to the relay points P2-P3-P4, and moves to the relay point P5.
And the display ends. Now, assuming that the name of the moving object in FIG.
Is as shown in FIG. The relay point P1 in FIG. 5 is at the display coordinates (X ₁ , Y ₁ ) and display time T ₁ in FIG. 6, and the relay point P2 is at the display coordinates (X ₂ , Y ₂ ).
Y ₂ ) and display time T ₂ , relay point P 3 at display coordinates (X ₃ , Y ₃ ) and display time T ₃ , relay point P 4 at display coordinates (X ₄ , Y ₄ ) and display time T
_4, the relay point P5 is display coordinates (X _5, Y ₅₎ and corresponding respectively to the display time T _5. The simulation data 31 of the moving object is managed in the database 3. In addition to the simulation data 31 of the mobile object managing the relay points P1 to P5 in FIG. 5, a screen indicating whether the mobile object is currently displayed on the screen (on or off) as shown in FIG. The display flag F ₁ , the screen display start time T _1, and the screen display end time T ₅ are managed as the display determination data 12 in the main storage unit 1c.

Next, the operation of one example of the mobile object simulation apparatus according to the first embodiment will be described with reference to the drawings.

First, it is checked whether or not the moving object is currently displayed on the screen from the screen display flag of the display determination data 12 managed in the main storage unit 1c (step S30).
1). If already displayed, step S302
If not, go to step S303.

Steps S302 and S303
Then, the simulation logical time T is compared with the display start time T ₁ and the display end time T ₅ .

If the logical time T is between the screen display start time T ₁ and the screen display end time T _{5 in} step S302,
Since it is necessary to change the position coordinates of the currently displayed moving object, the database 3 is accessed to calculate appropriate position coordinates, and the changed position of the moving object is drawn on the display device 4 (step S304).

If the logical time T is not between the screen display start time T ₁ and the screen display end time T _{5 in} step S 302, the currently displayed moving object is unnecessary, and the moving object is displayed from the screen. An erasing process is performed (step S305). At this time, since the simulation data 31 of the moving object is not required, the database 3 is not accessed at all. Further, since the moving object is deleted, the screen display flag is turned off (step S307).

If the logical time T is between the screen display start time T ₁ and the screen display end time T _{5 in} step S303,
Since it is necessary to newly display the moving object on the screen, the database 3 is accessed, appropriate position coordinates are calculated, and the moving object is newly drawn on the display device 4 (step S).
306). Also, since a new moving object is drawn, the screen display flag is turned on (step S308).

If the logical time T is not between the screen display start time T ₁ and the screen display end time T _{5 in} step S 302, no processing needs to be performed.
Do not access. This is performed for all the registered moving objects, and the drawing processing of the present invention ends.

[0036]

As described above, in the mobile object simulation apparatus of the present invention, the screen display flag, the screen display start time and the screen display time of the mobile object are stored in the main storage separately from the simulation data of the mobile object in the database. Display judgment data consisting of the display end time is prepared for each moving object, and the judgment of the moving object that should access the database is performed based on the display judgment data, thereby minimizing access to the database and updating the display. In this case, there is an effect that the drawing processing speed can be improved.

In the moving object simulation high-speed drawing method according to the present invention, apart from the simulation data of the display coordinates and the display time of the moving object which are managed in the database, information on the presence or absence of the screen display of the moving object, When the mobile object is to be displayed by managing the display determination data including the screen display start time and the screen display end time in the main storage unit which can be accessed faster than the database, the display managed by the main storage unit It determines whether or not to display the moving object on the display screen from the determination data, and specifies the moving object to be displayed.Therefore, there is no access to the simulation data outside the drawing target managed in the database at all. This has the effect of improving the effective drawing processing speed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a moving object simulation apparatus according to a first embodiment of the present invention.

FIGS. 2A, 2B, and 2C are diagrams illustrating examples of display, simulation data, and display determination data in the mobile object simulation device according to the first embodiment.

FIG. 3 is a flowchart illustrating a procedure of a high-speed drawing processing method for moving object simulation according to the first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a configuration of a moving object simulation apparatus according to a second embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of a trajectory of a moving object displayed on a display device in the moving object simulation device according to the first embodiment.

6 is a diagram showing an embodiment in which simulated data of discrete display coordinates and display times is managed in the moving object of FIG. 5;

FIG. 7 is an embodiment in which a screen display flag, a screen display start time, and a screen display end time are managed in the moving body of FIG. 5;

[Explanation of symbols]

 Reference Signs List 1 computer 1a main processor 1b read-only storage unit 1c main storage unit 2 keyboard 3 database 4 display device 11 moving body simulation program 12 display determination data 31 simulation data S301 screen display flag determination step S302 logical time comparison step S303 logical time comparison step S304 Moving body position coordinate updating step S305 Moving body erasing step S306 Moving body display step S307 Screen display flag off step S308 Screen display flag on step # 1 to # 3 Moving body

Claims (5)

(57) [Claims] 1. A moving object simulation apparatus for simulating the movement of a moving object by redrawing the moving object at regular time intervals using simulation data. A simulation comprising discrete display coordinates and display time of the moving object. A database for managing data; a main storage unit for storing display determination data including information on presence / absence of screen display of the moving body, a screen display start time and a screen display end time for each moving body; Referring to the display determination data of the moving object of the section, if the information of screen display presence is displayed, it is determined whether the logical time is between the screen display start time and the screen display end time, If there is between the screen display start time and the screen display end time, a table obtained by accessing the simulation data in the database Displays the moving object based on the indicated coordinates and display time, and if the logical time is not between the screen display start time and the screen display end time, deletes the displayed moving object and displays the information on screen display If the logical time is between the screen display start time and the screen display end time when the screen display information is not displayed, the display coordinates and display obtained by accessing the simulation data in the database. A moving object simulation apparatus, comprising: moving object simulation means for displaying a moving object based on time, and setting information on presence / absence of screen display to display. 2. The movement according to claim 1, wherein the screen display start time is a head display time of the simulation data in the database, and the screen display end time is a tail display time of the simulation data in the database. Body simulation device. 3. A drawing processing method of a moving body simulation for simulating the movement of a moving body by redrawing the moving body at regular time intervals using simulation data. Referring to the display determination data of step (a), and determining whether or not the information on the presence or absence of the screen display is present. If the information on the presence or absence of the screen display is present, the logical time is the screen display start time and the screen display end time. If it is between, display the moving object based on the display coordinates and display time obtained by accessing the simulation data in the database, if the logical time is not between the screen display start time and the screen display end time The process of erasing the displayed moving object to make the information of screen display non-display non-display. If the time is between the screen display start time and the screen display end time, a step of displaying the moving object with the display coordinates and the display time obtained by accessing the simulation data in the database and making the information of screen display presence / absence display And a high-speed drawing processing method for moving body simulation. 4. The movement according to claim 3, wherein the screen display start time is a head display time of the simulation data in the database, and the screen display end time is a tail display time of the simulation data in the database. High-speed drawing method for body simulation. 5. A procedure for, at regular intervals, referring to display determination data of a moving object in a main storage unit to determine whether information on screen display is present or not, wherein the information on screen display presence is provided. If there is a display, it is determined whether the logical time is between the screen display start time and the screen display end time. If the logical time is between the screen display start time and the screen display end time, the simulation in the database is performed. The moving object is displayed based on the display coordinates and the display time obtained by accessing the data.If the logical time is not between the screen display start time and the screen display end time, the displayed moving object is deleted. Procedure to turn off the display of the screen display by displaying it, and if the information of the screen display is not displayed, check whether the logical time is between the screen display start time and the screen display end time. If the logical time is between the screen display start time and the screen display end time, the display of the moving object is performed at the display coordinates and the display time obtained by accessing the simulation data in the database, and information on whether or not the screen is displayed. Recording medium for recording a program for executing a procedure for turning on a computer.