JPH05101150A - Analytic result data display system - Google Patents

Abstract

PURPOSE:To provide an analytic result data display system which can specify an optional cutting plane of a three-dimensional structure and display on a screen one over the other its cutting plane shape and physical quantities on the cutting plane. CONSTITUTION:This data display system consists of an input device 1, a graphic display device 2, a graphic processor 3, a cutting plane state storage device 4, and a figure and analytic result storage device 5. The graphic processor 3 consists of a CPU 3-1 and a main memory 3-2 and displays the shape on the cutting plane specified with the distances from the origins of two axes among an X, a Y, and a Z axis and various physical quantities on the plane in a specified state by a graphic processing part 3-3, a cutting plane specification processing part 3-4, and a cutting plane graphic processing part 3-5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in a CAD device or an analysis data display device, displays a three-dimensional structure and analysis result data of physical quantities such as wind velocity and thermal fluid in the three-dimensional space on the screen. The present invention relates to a method of displaying analysis result data.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional three-dimensional wire.
The wind velocity vector diagram is displayed on the frame graphic data. Conventionally, in this type of display system, it is general to display the analysis result data of the physical quantity such as the wind speed on the graphic data of the three-dimensional structure. This display method is quite effective for grasping the flow of the entire wind speed, and in order to grasp the details of a specific place, the operation such as screen enlargement or reduction is repeated to create and display an appropriate figure. Was there. FIG. 9 is an example of a relatively simple graphic. In addition to the display as shown in FIG. 9, the method of directly referring to the analysis result data of the physical quantity represented by a numerical sequence is adopted.

[0003]

However, in the above-mentioned method, there are cases where the state (analysis result data) of the portion desired to be determined cannot be determined, and the number of screen operations such as enlargement / reduction is required to make the determination. It becomes too complicated and too complicated to get real-time visual results. In other words, if the results are displayed in the three-dimensional form as shown in FIG. 9 as the three-dimensional analysis result data, it becomes difficult to grasp the results of the detailed parts, and it takes an operation time to see the results, which is satisfactory. Was not.

The present invention has been made in view of the above points, and in order to eliminate the above-mentioned problems of difficulty in grasping the analysis result and complexity of operation, an arbitrary cut surface of a three-dimensional structure is eliminated. Is specified, the physical quantity on the two-dimensional cut surface is obtained, and the analysis result data display method capable of superimposing on the cut surface and displaying on the screen is provided.

[0005]

In order to solve the above problems, the present invention, as shown in FIG. 1, includes a cutting plane designation processing section 3-4 and a cutting plane figure processing section 3-5 in addition to a conventional CAD device.
And the cut surface state storage device 4 is provided, the cut surface is designated by the input device 1, and the analysis result data of the physical quantity distributed in the three-dimensional space is displayed.
2D C
The means for displaying by the AD method or the two-dimensional analysis data display method is adopted.

[0006]

According to the present invention, a three-dimensional structure is designated by an arbitrary cutting plane, and the physical quantity on the cutting plane is calculated by interpolation from the analysis result data of the nodes on both sides of the plane and the cutting is performed. By superimposing the surface and the analysis result data obtained by the interpolation on the same screen, a two-dimensional simplified screen display is possible and the operation becomes simple.

[0007]

FIG. 1 is a block diagram showing the overall configuration of an embodiment according to the present invention, which comprises an input device 1, a graphic display device 2, a graphic processing device 3, a cutting plane storage device 4, a graphic and analysis result storage device 5. Composed. The graphic processing device 3 is a CPU 3-1.
And the main memory 3-2, and is configured to perform processing by the graphic processing unit 3-3, the cut surface designation processing unit 3-4, and the cut surface graphic processing unit 3-5.

The input device 1 is composed of, for example, a keyboard, a mouse digitizer, etc., and is used for information and data for graphic processing.
To specify the data. The graphic display device 2 displays (displays on the screen) the information sent from the graphic processing device. At this time, the image is reduced or enlarged and displayed on the screen (CRT) depending on the size of the figure.

The graphic processing unit 3-3 operates graphic data or analysis result data by commands such as input, edit and delete of the conventional CAD device. The cutting plane designating section 3-4 and the cutting plane figure processing section 3-5 according to the present invention are incorporated in the figure processing apparatus. These are for performing control when exchanging information regarding analysis result data between peripheral devices (display device, storage device, etc.),
It may exist outside the graphic processing device 3.

The cut surface state storage device 4 stores a state in which three-dimensional analysis result data is converted into an image of two-dimensional analysis data. Figure and analysis result storage device 5
Stores analysis figure data (analysis model) and analysis result data, and also stores three-dimensional wire frame data and its attribute information. The cut surface state storage device 4 and the graphic / analysis result storage device 5 may be integrated as one external storage device.

The processing procedure of the apparatus according to the present invention will be described with reference to FIG. The analysis graphic data is read from the graphic and analysis result storage device 5 (step ST1), and the graphic processing device 3 is read.
Is converted into a data structure that can be expressed on the graphic display device 2 (step ST2), and the converted data is displayed on the screen of the graphic display device 2 (step ST3). The graphic analysis data may be data stored in the memory or an analysis graphic file (external storage device).

When the analysis graphic is displayed on the display screen of the graphic display device 2, the process proceeds to a cutting plane designation process (step ST4). The cut surface is designated by a keyboard or a mouse. In case of keyboard, origin of X-axis / Y-axis / Z-axis (0,
The cut plane is determined by specifying the distance from (0,0). When designating with a mouse, first, the XY direction diagram, Y
Either the Z direction view or the ZX direction view is designated, and then the mouse is moved to determine the cutting plane on which the result is actually displayed. Figure 3
Shows an example of specifying the cutting plane. FIG. 3A is a three-dimensional diagram, and FIG.
(B) shows the Y-Z axis two-dimensional cut at the X coordinate: 115.

When the designation of the cut surface is completed, the analysis result type is designated (step ST5). This means that, as shown in FIG. 4, the analysis result display state and the analysis result contents are designated. As the analysis result display state, the state of the screen display is designated. As shown in FIG. 5, a line drawing state, and a state in which the line drawing portion is filled with others (illustration is omitted).
It is also possible to superimpose two result data.
The contents of the analysis result include a wind velocity vector diagram as shown in FIG. 6A, a temperature distribution diagram as shown in FIG.
There is a pressure distribution chart as shown in (c). Note that FIG.
Each of (a), (b), and (c) shows a Z-Y axis two-dimensional diagram cut at the X coordinate: 115.

In addition, the present embodiment also has a function of changing the numerical display, the color tone, the length, the display interval, etc., of the numerical display, the distribution chart, and the vector chart. After the analysis type is specified, for example, as shown in FIG. 8, the analysis result data of each node is proportionally distributed by the distance from the cut surface and interpolated to obtain a value on the specified cross section (step ST6). The shape of the cut surface and the analysis result data are displayed on the graphic display device 2 (step ST
7).

This is displayed as a picture in which the three-dimensional analysis result data is converted into the two-dimensional data on the designated cut surface as shown in FIG. Especially in the case of wind velocity vector diagram,
It is valid. The displayed cut surface analysis data is stored in the cut surface state storage device 4 (step ST8). When the type is further specified continuously, the process is repeated from step ST5 (step ST9), and when the cut surface is specified, the process is repeated from step ST4 (step ST10). 7A is a three-dimensional diagram, FIG. 7B is a Z-Y axis two-dimensional diagram cut at an X coordinate: 115, and FIG. 7C is a Z coordinate: 470.
3 shows the temperature and wind velocity distribution of the X-Y axis cross section in FIG.

[0016]

As described in detail above, according to the present invention, the following effects are expected. The three-dimensional analysis result data is displayed in a two-dimensionally simplified manner by designating the cut surface, and the detailed state can be easily grasped.
In addition, the operability for displaying the three-dimensional analysis result data is improved, and the result grasp time of the three-dimensional analysis data and the screen operation time can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a processing procedure for displaying analysis result data according to the present invention.

3A and 3B are diagrams showing an example of designation of a cut surface according to the present invention, FIG. 3A is a three-dimensional diagram, and FIG. 3B is a two-dimensional diagram.

FIG. 4 is a diagram showing the contents of analysis result type designation according to the present invention.

FIG. 5 is a diagram showing an example of an analysis result display state according to the present invention.

FIG. 6 is a diagram showing an example of analysis result display according to the present invention.
6A is a wind velocity vector diagram, FIG. 6B is a temperature distribution diagram, and FIG. 6C is a pressure distribution diagram.

7A and 7B are views showing a two-dimensional display example of analysis result data according to the present invention, FIG. 7A is a three-dimensional view, and FIG.
An axis two-dimensional diagram, FIG. 7C is an X-Y axis two-dimensional diagram.

FIG. 8 is a diagram for explaining an example of vector interpolation.

FIG. 9 is a diagram showing an example of conventional analysis result data display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input device 2 Graphic display device 3 Graphic processing device 3-1 CPU 3-2 Main memory 3-3 Graphic processing unit 3-4 Cutting plane designation processing unit 3-5 Cutting plane graphic processing unit 4 Cutting plane state storage device 5 Graphics And analysis result storage device

Claims (1)

[Claims] 1. An input device, a graphic display device, a graphic processing device,
In the analysis result data display method of a CAD device or an analysis data display device equipped with a figure and an analysis result storage device, from the origin of any two axes of X-axis, Y-axis and Z-axis of a three-dimensional structure A cutting plane designation processing unit that designates a cutting plane by specifying a distance, a cutting plane figure processing unit that displays and processes the states of various physical quantities on the cutting plane in a designated form, and three-dimensional analysis result data. A cutting plane state storage device for storing the state converted into the image of the two-dimensional analysis data is provided, and the value on the specified cross section is interpolated by calculation from the analysis result data of the physical quantity distributed in the three-dimensional space. A method for displaying analysis result data, characterized in that the shape of the cut surface and the analysis result data on the cut surface are superimposed and displayed on the screen.