JP3319617B2 - Method and apparatus for systematically managing simulation condition changes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing an intermediate result of various simulations, a parameter change performed during the simulation, and more specifically, a method of displaying a time scale in a systematic manner to execute a simulation. In a method with high visibility.

[0002]

2. Description of the Related Art As a method for displaying existing time-series information, a method using a trend graph, hypertext, or the like has been proposed. In a method using a trend graph (described in Japanese Patent Publication No. 62-26469, etc.), when time-series information reaches an end of an area to be displayed, the information is scrolled to the center, for example, and displayed again. The visibility of time-series information is improved.
Also, a method using hypertext (Japanese Patent Application No. 2-18 / 1990)
In the time series processing sequence, when one processing part is linked to another processing part and the processing part of the link source is temporally behind the processing part of the link destination, By displaying it first, a method of not displaying the processing part of the link destination doubly is provided.

[0003]

As described above, a method for displaying time-series information has conventionally existed, but new time-series information is usually generated due to a change in simulation execution conditions or the like. At this time, by managing the new time series information together with the original time series information,
It is necessary for the user to selectively display time-series information desired to be visually recognized. However, in the above-mentioned conventional technology, these matters are not considered. Therefore, it has been desired to provide a method for managing systematic information at the time of changing simulation conditions in consideration of these matters.

[0004]

As means for providing the information management method as described above, the following means can be considered.
When performing a simulation of a system that generates a result in a time series, displaying the transition of the execution state of the simulation graphically using a time scale that is a scale indicating the passage of time, and outputting the simulation result on a display screen In the above, when a simulation condition set in advance is changed, a new time scale corresponding to the changed condition is generated and connected to the time scale of the branch source by a branch line and displayed. This is a systematic management method for changing simulation conditions.
In the above means, the branch management table (BMT)
And store the simulation information associated with each time scale in the BMT, and
A systematic management method of changing simulation conditions managed by a pointer between T is also conceivable. Further, the simulation information includes at least a table number for storing the order in which the time scale is created, the number of sections in which the time scale is separated by branch lines, display coordinates indicating a display position of the time scale on a display screen, The information may include a simulation start time, a simulation end time, and a time scale branch management location.

Further, in the above means, each section of the displayed time scale separated by the branch may be a systematic management method of changing simulation conditions in which the section is displayed with a fixed geometric length. Further, in the above-mentioned means, when a new time scale is generated by branching, the length of the time scale is lengthened, and it becomes impossible to display the time scale within the time scale display range. The scaling factor, which is a scale factor of the length of the time scale, is changed, and the time scale is reduced and displayed, and the display positions of all the time scales branched from the time scale are displayed on the reduced time scale. A systematic management method of a simulation condition change that is changed according to the position and displayed again is also conceivable. Further, in the above means, by specifying a certain time scale and following the pointer of the BMT corresponding to the specified time scale, the connected BMTs are searched and these BMTs are searched.
A systematic management method of changing simulation conditions, in which the MT is invalidated, the specified time scale and all time scales branched from the specified time scale are deleted, and related simulation data is deleted, is also conceivable. In addition, in the above means, when displaying the time scale,
By following the pointer of the BMT corresponding to the time scale, a time scale corresponding to the route whose condition has been changed is highlighted, and a systematic management method of simulation condition change that is displayed separately from other time scales is also conceivable. Note that the highlighting may be performed using display colors. Further, in the above means, when a certain time is designated at a cursor position on a certain time scale, a predetermined symbol is set at a position representing the time designated by the cursor on all time scales. A systematic management method of changing simulation conditions to be displayed is also conceivable. As an example of an apparatus for realizing the above method, the following means can be considered. In an apparatus having an input device, a display device, a CPU, and a memory, a simulation executing means for performing a simulation of a target system in a time series, a simulation condition setting / changing means for inputting simulation parameters, and a simulation. Simulation data display means for displaying a result,
Scale display means for displaying the transition of the execution state of the simulation by a scale (time scale) representing a time axis, branch management means for managing the branch of the time scale by changing the simulation parameters, and when the simulation condition is changed And a means for generating a new time scale.

[0006]

The operation will be described below. First, a time scale representing the execution state of the simulation is displayed. When a simulation parameter is changed during the execution of the simulation, a new time scale is branched in accordance with the change. The time scale at which the branch occurred is connected to the time scale of the branch source by a branch line and displayed. The time scale is branched every time a simulation parameter is changed. In this way, every time a change in the simulation condition occurs, the time scale is branched, and the branch state is displayed by connecting the time scale of the branch source with the line segment, so that the simulation condition can be changed systematically. Thus, a display method with good visibility can be provided. This is achieved by, for example, creating and storing a branch management table (hereinafter also referred to as “BMT”) of simulation information related to each time scale, and managing the branches by pointers between the tables. . At this time, the branch management table may store information such as a storage address of output image data of a simulation result, a simulation start time, a simulation end time, and a time scale branch management place. In addition, by displaying each section of the displayed time scale, which is separated by a branch, with a fixed length, if the time cursor is prevented from being displayed outside the display window, a display with better visibility is provided. We can provide a method. If it is inevitable that the time cursor protrudes from the display window, the scale factor of the time scale is changed, the time scale is reduced and displayed, and all the time branches from the time scale are displayed. By adopting a method of changing the display position of the scale in accordance with the display position of the reduced time scale and redisplaying it, a display method with even better visibility can be provided. Also, B corresponding to the designated time scale
By following the MT pointer, the connected BM
Search for T, disable these BMTs, delete the indicated time scale, all time scales branched from that time scale, and delete related simulation data to remove unnecessary simulation data. It is also possible. Furthermore, when displaying the time scale, in order to clearly indicate the progress of the simulation condition change, the color of the time scale corresponding to the changed condition is changed and highlighted to distinguish it from other time scales. By displaying, a display method with even better visibility can be provided. Since the unit on the time axis is different for each time scale, for example, when a certain time is indicated at a cursor position on a certain time scale, the time is indicated by the cursor on all time scales. Even if a predetermined symbol, for example, a white circle (“〇”) or the like is displayed at a position representing the time corresponding to the position, a display method with good visibility can be provided. As described above, according to the present invention, it is possible to provide a method for managing systematic information at the time of changing simulation conditions.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an image when a time scale is displayed on a display 101 using the present invention. Here, as an example of the simulation target, a dynamics simulation that generates time-series information is handled. The simulation target may be a fluid operation, a natural phenomenon such as a fire spread, a person flow, a physical distribution phenomenon, or the like.
The display 101 displays two windows. One is a window for executing a simulation and outputting a result (simulation display window: SDW102), and the other is a systematic time scale. (System time scale display window: LTW103). Initially, only the time scale 104 is displayed, and other time scales branch off due to a change in simulation conditions or the like. The time scale 105 is the time scale 10
Since the condition has been changed during the execution of Step 4, the display is in a branched state. Here, the branch state is indicated by a branch line 106. By instructing the condition change icon 107, a display is made as to how the condition has been changed. By displaying the scroll bar 108 at the branch position and the right end of the time scale, the branch process and the currently used execution condition can be known. The scroll bar 108 is instructed and scrolled by an instructing means such as a mouse, for example, but is displayed at the right end in an initial state, for example. FIG. 2 shows an example of a device configuration diagram for implementing the present invention. This configuration diagram includes an input device, an event management unit 201, a simulation condition setting / change unit 202, a branch management unit 203, a partial scaling unit 204, a scale deletion unit 205, a simulation execution unit 206, and a simulation data display unit 20.
7, scale display means 208, BMT (branch management table), SDMT (simulation data management table) 209, and display 210.
Hereinafter, the components will be described. The input device is realized by an input device such as a keyboard and a mouse. The event management unit 201 includes, for example, a keyboard,
Detects data input from an input device such as a mouse,
This is a means for displaying simulation results, setting and changing simulation conditions, displaying a time scale, partially scaling a time scale, starting various programs such as an erasing operation, and the like, and managing execution of each event. For example, it is realized by an electronic device such as a CPU, a ROM, and a RAM. Simulation condition setting / change means 202
Changes the setting of the simulation execution condition and sets a simulation condition table (hereinafter also referred to as “SCT”).
Means such as CPU, ROM, RA
It is realized by an electronic device such as M. Branch management means 20
Numeral 3 is a means for storing data obtained by executing the simulation in a storage device such as a hard disk and managing the sequence, for example, CPU, ROM, RAM
And the like. Also, branching of conditions when the simulation conditions are changed is managed together. The partial scaling unit 204 is a unit that calculates the length of the time scale so that it can be displayed in the window when the time scale cannot be displayed in the window. For example, a CPU, a ROM, a RAM, etc. Electronic devices. Scale erasing means 20
5 is a means for deleting an associated time scale in order to delete unnecessary simulation results;
For example, it is realized by an electronic device such as a CPU, a ROM, and a RAM. The simulation means 206 is means for executing a simulation in accordance with the setting of simulation conditions and the parameters defined by the simulation condition setting / changing means 202.
It is realized by an electronic device such as a CPU, a ROM, and a RAM. The simulation data display means 207 is a means for displaying data obtained during the execution of a simulation or a simulation result stored in a database, and is realized by an electronic device such as a RAM, for example. A BMT (branch management table) and an SDMT (simulation data management table) 209 are storage means for storing various information for displaying a time scale, a designated address of simulation output image data, and the like. Is realized. The display 210 is a means for actually displaying various output results, and is realized by a display device such as a CRT or a liquid crystal panel. Next, a method of performing a simulation using such a simulator, expressing a branch accompanying a change in a condition on a systematic time scale, managing the execution of the simulation, and further performing partial scaling, erasure, and the like. Will be described. In this embodiment, the SDW 10 shown in FIG.
As shown in FIG. 2, a simulation for obtaining the state of the flow of a fluid when an obstacle is installed will be described as an example.
Such a simulation is performed around a flying object such as an aircraft,
It is intended to simulate an airflow around a building such as a building in a city. FIG. 4 shows an example of a data structure for managing simulation data. Using this data structure, a simulation result corresponding to the system time scale display shown in FIG. 3 is managed. There are two types of data structures for managing simulation data.

A branch management table (hereinafter also referred to as “BMT”) for managing the branch of the simulation condition and a simulation data management table (hereinafter also referred to as “SDMT”) for managing the storage of the simulation result data. One BMT corresponds to one time scale. Tables 314 to 318 are BMTs and correspond to time scales 302 to 306, respectively. BMT
Is composed of a set of a table header and a plurality of data sets.

In FIG. 4, table headers 327 to 3
30, one data set 331 to 336 is shown, but the table headers 327 to 330 correspond to one data set 331 to 336. Next, the contents of the table header will be described.

The table header has a table number 327,
It has a section number 328, a pointer 329, and display coordinates 330. The table number 327 stores the sequence number in which the time scale was created.

The number of sections 328 stores the number of sections whose time scale is divided by branch lines. This is the same as the number of data sets. For example, time scale 302
Is composed of two sections t1306 and t2307, the number of sections of the BMT 314 is two. The pointer 329 to the SCT is represented by Pc (i). i is a table number. The display coordinates 330 are coordinates indicating the display position of the time scale on the window. With these coordinates, the time scale can be designated by a cursor. next,
The contents of the data set will be described. The simulation start time ts (j) 331 and the simulation end time te (j) 332 of one section are stored. j indicates a section number, and a section order number is assigned. Further, the number 333 of conditional branches that occurred at the section end point is also shown. Time scale 3
02, at the end of section t1306, time scale 3
03 number of conditional branches because conditional branch related to 03 occurred
The value of 33 is 2. Furthermore, pointers Pb (k) 334, 33 to the newly created BMTs
5 is shown. Here, k is the sequence number of the pointer,
The maximum value matches the number of branches 333. Pi (m) 336
Is a pointer to the SDMT 319. Here, m is a section number. The SDMT manages a storage pointer for simulation data obtained in one section. The SDMT includes a storage destination data number 337 and a storage destination pointer 338. The time scale 30
3 is managed by the BMT 315 and includes three sections t3
Simulation data is managed by the SDMTs 321 to 323, respectively, because the simulation data includes 308, t4309, and t5310. In addition, the time scale 304
Is managed by the BMT 316, and one section t63
11 so that the SDMT 324
Simulation data is managed. Further, since the time scale 305 is managed by the BMT 317 and is constituted by one section t7312, the SDMT 32
5, the simulation data is managed. Further, since the time scale 306 is managed by the BMT 318 and is constituted by one section t8313,
Simulation data is managed by the DMT 326. The display of the system time scale, the operation algorithm, the associated time scale display, and the operation of the division management table will be described with reference to FIGS. 5, 6, 7, and 8. FIG. First, in step 401 (see FIG. 5), parameters for performing a simulation are set, and SC
Stored in T. Next, when the simulation is executed under the set simulation execution conditions, the time scale 502 is displayed in a system time scale display window (hereinafter also referred to as “LTW”) 501 as shown in FIG. 402). The length of the scale track 504 of this time scale is fixed at L. further,
The execution time of the simulation is displayed on the time display unit 505. The scroll bar 503 is displayed at the right end of the scroll track 504 while the simulation is being executed, and indicates that the simulation is being executed under the simulation conditions related to the time scale. Then, only the time value of the time display unit 505 is updated. Thereby, the time represented by the scroll track becomes the updated time value. Next, the operation in step 403 (see FIG. 5) will be described.
At the start of simulation execution, BMT 601 and SDMT 602 (see FIG. 8) are generated. FIG. 8 (a)
At first, ts (1) = te (1) = 0.
By storing the intermediate result of the simulation in the storage device, te (1) is updated, and a new storage destination pointer is added to the SDMT 602. Next, the processing in steps 404 to 408 (see FIG. 5) will be described. Step 404 to Step 4
Reference numeral 16 denotes one processing loop, and the execution is continued until a key is input. When key input is performed
(Step 405) If the key input instructs to change the simulation condition (Step 408), the simulation execution is interrupted, and the icon of the instruction cursor 506 is displayed. When no key input is performed, the simulation is directly executed (step 406),
The time value is updated (step 407). Next, processing in steps 409 to 410 (see FIG. 5) will be described. Using the instruction cursor, the time scale scroll bar 503 is moved (step 40).
9). As shown in FIG. 6B, when the position of the scroll bar is moved, a process of searching for the simulation data corresponding to the time of the scroll bar position using the storage destination pointer of the SDMT is performed. As shown in FIG. 6C, a branch line 508 indicating a branch from that position is displayed, and a new time scale 510 is displayed (step 410). The left end of the time scale 510 is in contact with the branch line. The length of the scroll track of the time scale 510 is L. On the other hand, the length of the time scale 502 is set to 2 · L (time scale 509) due to the occurrence of a branch. In general, when a number of branches occur in one time scale, the length S is given by the following equation (1). S = (a + 1) · L (Equation 1) In the case shown in FIG. 6B, the section 50 of the time value “16” is used.
7 is rewritten by being divided into a section 511 with a time value “10” and a section 512 with a time value “6”. Next, the processing in step 411 will be described. BMT
The data set 601 is changed or added as shown in BMT (603) in FIG. te (1) is changed from 16 to 10, ts (2) = 11, te (2) = 1
It becomes 6. The number of sections is updated to 2. Next, step 4
The process at 12 will be described. New time scale 5
A BMT 606 corresponding to 10 is generated and linked to the branch management table by the pointer Pb (1). At this time, in the BMT 606, ts (1) = t
e (1) = 11, and te (1) is updated when the simulation is executed under new conditions. Next, the processing in step 413 will be described. SDMT602
Is the SD because the time scale is divided into two sections
MT 604 and SDMT 605 are created. The storage destination pointers of time ranges 0 to 10 and 11 to 16 are stored, respectively. Next, the processing in step 414 will be described. For the new time scale 510, an SDMT 607 is generated and linked to the BMT 606 by the pointer Pi (1). Next, step 415
Will be described. The SCT associated with the time scale 502 is retrieved and displayed using the pointer Pc (1). At this time, simulation conditions are changed by key input, mouse click, and the like. For example, FIG.
In the fluid simulation shown in (1), obstacles are added,
Deletion or the like may be performed. The result of this change is stored in the database together with the result immediately before the change, and Pb
(1) is linked to the BMT 606. FIG.
(D) shows a state where the simulation is being executed under the new condition. In FIG. 7E, the scroll bar of the time scale 510 is moved to generate a branch as shown in FIG. 7F. At this time, section 511
Is divided into a section 513 and a section 514. Section 51
5 is the same as the section 512 and is not changed. As a result, the time scale 509 having a length of 2 · L is changed to a time scale 516 having a length of 3 · L, and a new time scale 5
18 is displayed. The time scales 510 and 517 are the same, but their display positions are changed.

FIG. 9 shows the structure of a new branch management table. The BMT 603 becomes like the BMT 608 having three sections by changing data, adding a data set, and the like.
Also, the SDMT 604 in the time range 0 to 10 is divided into the SDMT 611 in the time range 0 to 6 and the SDMT 612 in the time range 7 to 10, and the BMT 609 and the SDMT 610 relating to the new time scale 518 are created. When branches occur one after another for one time scale, the length of the branch becomes long, and a situation may occur in which the entire display cannot be displayed in the LTW. Therefore, it is necessary to perform scaling of the time scale (referred to as enlargement or reduction processing for changing the length: mainly referred to as reduction processing in the present invention). An algorithm and a display image in this case will be described with reference to FIGS. FIG.
The algorithm shown in FIG. 2 may be incorporated immediately after step 410 shown in FIG. First, the processing shown in FIG. 10 will be described. Hereinafter, this processing may be referred to as partial scaling. First, when it is determined that the length of the time scale is the longest, the scaling of the time scale is started (step 701). Also, let r be the initial scaling factor when the simulation is started for a certain time scale. Next, the number of sections b on the time scale is searched with reference to the BMT (step 70).
2). Next, the display length of the scale track on the time scale is calculated by the following equation (2) (step 703).

(B · L) · r / (r + 1) (Equation 2) Next, the scaled time scale is displayed in consideration of the length from the right end of the LTW (step 704). Further, the time scale branched from the scaled time scale is shifted to the left of the LTW and displayed (hereinafter, sometimes referred to as backward display) in accordance with the reduction in the length shown in step 703 (hereinafter, referred to as backward display) ( Step 705). Next, FIG. 11 shows a display image by partial scaling. In FIG. 11A, the time scale 802 is
It is assumed that the process branches to change the simulation parameters, and that the length of the LTW 801 is the maximum value. At this time, since the scale track of the time scale 802 (referred to as a bar that displays the time scale) cannot be extended any longer, it is necessary to perform a scaling process. FIG. 11B shows the result of performing the scaling process. The time scale 803 is a result of scaling processing of the time scale 802, and five branching time scales are displayed backward. By the partial scaling, the display position coordinates of the BMT are changed, but the SDMT is not changed. Of course, such scaling may be performed also in the vertical direction.

In this case, the length of the branch line is changed. When the time scale cannot be displayed in the vertical direction due to the addition of the time scale, for example, the length of the branch line is set to 1 / n (n is a natural number). At this time, the value of n at which the time scales do not overlap may be set as the maximum value. Even with such partial scaling, if the number of branches becomes very large, a situation may occur in which all time scales cannot be displayed. In this case, a scroll bar for scrolling the window may be displayed at the end of the window to scroll the contents of the window. Next, a method of erasing the time scale will be described. Deleting a time scale corresponds to deleting simulation data managed by the time scale. The algorithm for deleting the time scale, the display of the time scale associated therewith, and the operation of the division management table will be described with reference to FIG. 12, FIG. 13, and FIG. The algorithm shown in FIG. 12 is a process when the part shown in FIG. 5 is activated. Further, time scales 1002 to 1004 (see FIG. 13) correspond to BMTs 1101 to 1103 (see FIG. 14), respectively. Hereinafter, the processing content will be described. First, a time scale is designated by an instruction icon (step 901). In FIG. 13A, a time scale 1003
Is designated by the instruction cursor 1005. Next, a BMT corresponding to the designated time scale is searched based on the inclusion relationship between the designated position and the display coordinate data in the BMT (step 902). The indicated time scale is BMT
This corresponds to 1101. Next, a BMT that systematically branches from the searched BMT is searched with reference to the pointer Pb (i) (step 903). From BMT1102,
The BMT 1103 is searched by the tree walk.
Next, after searching the BMT obtained in step 902 and all Pi (j) stored in the BMT systematically branched, the BMT is deleted (step 904). This corresponds to the processing for releasing the memory area of the BMT.
BMTs 1102 and 1103 in FIG. 14 are erased. SDM from Pi (j) searched in step 904
T is searched, and the simulation data and SDMT are deleted (step 905). The erasing of the simulation data is, specifically, an erasing process from the storage device.
Erasing the MT corresponds to opening the memory area. Thereby, the SDMT 1105 linked to the BMT 1102, 1
106 will be erased. In addition, BMT110
The SDMT 1104 linked to 3 is deleted. next,
The designated time scale and the time scale corresponding to the retrieved BMT are deleted (step 906). Since the time scale 1004 branches from the time scale 1003, the time scales 1003 and 1004 are deleted. Next, the number of sections of the branch source time scale of the designated time scale is reduced by one. At this time, the value of the end time te (i) of the data set immediately before the branch is set to te (j) (j
= I + 1), and deletes the data set related to te (j) (step 907). This corresponds to adding a data set storing te (j) after the data set of te (i). At this time, the pointer Pi (j) of the branch source time scale is searched in advance. BMT1101
In this case, two sections are integrated into one as shown in BMT1109. Next, the processing in step 908 will be described. The data of the SDMT is retrieved from the pointer Pi (j) retrieved in step 907, and the data is connected to the linked SDMT with the pointer Pi (i). Then, the number of storage destination pointers of the SDMT is added. BMT
SDMT 1108 and 1107
To create the SDMT 1110. Next, the processing in step 909 will be described. Redisplay the time scale on the LTW. Thereby, the display position coordinates of the BMT are updated. The time scale 1001 is rescaled and displayed (FIG. 13, 1006). There is a case where it is desired to view the history of the simulation condition change based on the systematic display of time. In this case, as shown in FIG. Can be easily displayed. Next, the condition change icon 107 shown in FIG.
FIG. 16 shows an image of the display when the instruction is given. The left diagram shows the simulation conditions (conditions relating to obstacles) before the condition change, and the right diagram shows the simulation conditions after the condition change. Here, before and after the condition change, the changed portion is displayed by changing the display method (in FIG. 16, hatching is used). Also in the case of parameter change, the difference is displayed in the part where the parameter value is changed by changing the display character color or the like, and the instantaneous readability of the difference can be improved. By the way, in the display method described so far, the length of the length is scaled in the branch section, so that the elapsed time of the simulation is not uniform on the screen. Therefore, it is desired to calculate the elapsed time from the position of the designated time scale, and to display the position corresponding to the time on all the time scales using symbols or the like. This can be easily done by using BMT. First, the BM is calculated from the position coordinates of the designated time scale.
The elapsed time for the indicated position is calculated with reference to ts and te stored in the data set of T. Next, the BMT linked by the pointer is searched from the data set immediately before the searched data set, and the BMT including the elapsed time is searched. Further, from the searched BMT, t
With reference to s and te, a data set including the elapsed time is searched. By repeating this process, all the BMTs including the elapsed time and their data sets are searched. The coordinates of the elapsed time on the time scale are calculated from the data set searched in this way, and, for example, a symbol is displayed at that position. In FIG. 17, the elapsed time (time 120) specified on the time scale 1401 is displayed using a circle symbol “〇” on all time scales.

As described above, according to the present invention,
Changes in simulation conditions can be visually recognized, and it is easy to re-execute the simulation and track changes accompanying changes in conditions. Further, it is also possible to easily change the simulation conditions and delete the results and the like by performing a graphic operation on the time scale.

[0016]

Since the change in the simulation condition can be visually recognized, it is easy to re-execute the simulation and to track the change accompanying the change in the condition. Further, it is possible to easily change the simulation conditions, delete the result, and the like by a graphic operation.

[Brief description of the drawings]

FIG. 1 is a display image diagram of a system time scale.

FIG. 2 is an explanatory diagram of a configuration example of a simulator that performs system time scale management.

FIG. 3 is an explanatory diagram of an example of a simulation management means.

FIG. 4 is an explanatory diagram of an example of a simulation management means.

FIG. 5 is an explanatory diagram of an algorithm for displaying and operating a system time scale.

FIG. 6 is a display image diagram of a system time scale display / operation.

FIG. 7 is a display image diagram of system time scale display / operation.

FIG. 8 is an explanatory diagram of a branch management table operation procedure.

FIG. 9 is an explanatory diagram of a branch management table operation procedure.

FIG. 10 is an explanatory diagram of an algorithm of partial scaling.

FIG. 11 is a display image diagram of partial scaling.

FIG. 12 is an explanatory diagram of a system time scale erasing algorithm.

FIG. 13 is a display image diagram of system time scale erasure.

FIG. 14 is an explanatory diagram of deleting a branch management table.

FIG. 15 is a display image diagram of a history on a system time scale.

FIG. 16 is an explanatory diagram of a condition change according to an instruction of a condition change icon.

FIG. 17 is a display image diagram of the same time on a system time scale.

[Explanation of symbols]

101: display, 102: simulation display window (SDW), 103: system time scale display window (LTW), 104: time scale, 105:
Time scale, 106: branch line, 107: condition change icon, 108: scroll bar, 201: event management means, 202: simulation condition setting / change means,
203: Branch management means, 204: Partial scaling means, 205: Scale erasing means, 206: Simulation execution means, 207: Simulation data display means, 208: Scale display means, 209: Branch management table (BMT), simulation data management table (SDMT), 210: display, 301: system time scale display window, 302: time scale, 3
03 ... time scale, 304 ... time scale, 305 ...
Time scale, 306: time scale, 314: BM
T, 315 ... BMT, 316 ... BMT, 317 ... BM
T, 318 ... BMT, 319 ... SDMT, 320 ... SD
MT, 321 ... SDMT, 322 ... SDMT, 323 ...
SDMT, 324 ... SDMT, 325 ... SDMT, 32
6, SDMT, 327, table number, 328, number of sections, 329, pointer to SCT, 330, display coordinates,
331 start time, 332 end time, 333, 33
4. Pointer to BMT, 335 ... Pointer to BMT, 336 ... Pointer to SDMT, 337 ... Number of storage destination data, 338 ... Storage destination pointer, 502 ... Time scale, 503 ... Scroll bar, 504 ... Scroll track, 505 ... time display section, 506 ... instruction cursor, 5
07 ... section, 508 ... branch line, 509 ... time scale,
510 ... time scale, 513 ... section, 514 ... section,
515 section, 516 time scale, 517 time scale, 518 time scale, 601 BMT, 60
2: SDMT, 603: BMT, 604: SDMT, 6
05 ... SDMT, 606 ... BMT, 607 ... SDMT,
608 ... BMT, 609 ... BMT, 610 ... SDMT,
611 ... SDMT, 612 ... SDMT, 613 ... SDM
T, 614: BMT, 615: SDMT, 801: System time scale display window, 802: Time scale,
803 time scale, 1001 system time scale display window, 1002 time scale, 1003 time scale, 1004 time scale, 1005 instruction cursor, 1006 time scale, 1101 BM
T, 1102 ... BMT, 1103 ... BMT, 1104 ...
SDMT, 1105 SDMT, 1106 SDMT,
1107 SDMT, 1108 SDMT, 1109
BMT, 1110 ... SDMT, 1401 ... Time scale

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-318664 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 19/00 110 G09G 5/00 510 G06F 3/00 656 G06F 3/14 360

Claims (8)

(57) [Claims] An input device, a display device, a CPU, and a memory are provided.
Simulation performed on a device configured as
In the systematic management method for changing the simulation conditions, the CPU simulates a system that generates a result in a time series , and changes the execution state of the simulation.
Display a graphic using a time scale that is a scale indicating the passage of time, and display the graphic display and the simulation result as described above.
In case of outputting on the display screen of the display device, when subjected to changes in simulation condition set in advance from the input device, corresponding to the changed conditions in the CPU, so the new time scale branches generated ,
The display unit is connected to the branch source time scale with a branch line.
A systematic management method for changing simulation conditions, characterized in that a graphic is displayed on a display screen of a device. 2. A memory according to claim 1, wherein a branch management table (BMT) is created in said memory, and simulation information relating to each time scale is stored in said BMT.
, And the branch is managed by a pointer between BMTs. 3. The time scale according to claim 1, wherein each section of the displayed time scale is divided by a branch.
A systematic management method of changing simulation conditions, characterized in that the simulation condition is displayed with a fixed geometric length. 4. The method according to claim 1, wherein when a new time scale is generated by branching, the length of the time scale is lengthened, and the time scale cannot be displayed in the time scale display range. Change the scaling factor, which is the scale of the length when displaying the time scale, display the time scale in a reduced size, and display the display positions of all the time scales branched from the time scale. A systematic management method for changing simulation conditions, characterized in that the display is changed in accordance with the display position of the reduced time scale and is displayed again. 5. The time scale according to claim 1, wherein when displaying the time scale, the time scale corresponding to the path whose condition has been changed is traced by following a BMT pointer corresponding to the time scale. A systematic management method for changing simulation conditions, characterized in that the display is highlighted and displayed separately from other time scales. 6. The method according to claim 5, wherein the highlighting is:
A systematic management method for changing simulation conditions, which is performed according to display colors. 7. A method according to claim 1, wherein when a certain time is indicated at a cursor position on a certain time scale, the time is indicated on all the time scales.
A systematic management method for changing simulation conditions, wherein a predetermined symbol is displayed at a position representing a time corresponding to a position designated by the cursor. 8. An apparatus configured to have an input device and a display device a CPU, said CPU, a simulation execution unit for performing a time series simulation of the system of interest, to an input from said input device Based
Simulation condition setting / change means for inputting and changing simulation execution conditions, simulation data display means for displaying simulation results on the display device , and transition of the execution state of the simulation.
Using the time scale, which is a scale that shows the passage of time
A scale display means for displaying graphics on the display device, new time scale when Shi Mi <br/> Interview configuration conditions change
And generate a branch at the time scale and branch line of the branch source.
Means for connecting and graphically displaying a graphic on a display screen of the display device.