JPH05224657A - Data display method - Google Patents

Abstract

PURPOSE:To emphasize and display special data and to improve the visibility by changing the color, size, and direction of many small solid bodies generated by visualizing plural data according to the values of the respective data and flag data given to aimed data. CONSTITUTION:Simulation is performed while currents to respective magnetic lenses of, for example, a cyclotron are made different, and the calculation result of the probability that a beam passes through an inflector is displayed in one of colors corresponding to the value of the corresponding data. Namely, many data obtained by the simulation are represented as P(xi, yi, and zi) and the colors are assigned corresponding to the values of the data. The flag data is added to solid bodies (data) in an aimed area and made different in color from solid bodies in other areas, the solid bodies are made larger by enlargement than those in other areas, and the directions of the solid bodies are made different. Here, (xi, yi, zi) represent coordinate values in a three-dimensional space; and 0<=xi<=1, 0<=yi<=1, and 0<=zi<=1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying data on a display such as a cathode ray tube CRT, and more particularly, to visualize a large number of data in small solids, and these small solids can be displayed on a display screen. The present invention relates to a data display method for displaying so as to form a three-dimensional shape.

[0002]

2. Description of the Related Art As an example of this type of data display method, Gregory, M. and Neilson (Gregory,
M. Nielson, et al., "Visualizin.
g and Modeling Scattered M
Ultimate Data "(IEEE Co
mputer Graphics & Applica
Tions, May 1991). In simple terms, this display method visualizes a large number of data in small cubes as shown in FIG. 4, and a large number of small cubes are respectively displayed in an apparent three-dimensional space set on the display screen. They are arranged at equal intervals, and finally displayed so as to form a cube. The characteristic of this display method is that a small cube corresponding to particularly remarkable data among a large number of data is displayed in different colors so as to be different in color from other small cubes. Therefore, the display is a color display.

Although such a data display method will be described later in detail, it can be considered to be applied to, for example, a control system having three kinds of parameters (operating conditions). That is, in a control system in which there are three types of parameters to be adjusted, the three types of parameters act on the control system while interrelated with each other. Therefore, when setting conditions for a certain parameter, it is necessary to perform the setting work while considering the influence of the remaining parameters, and such setting work must rely on the intuition and skill of the operator.

On the other hand, simulation is performed while giving various conditions to the three types of parameters, the data obtained as a result is measured, and the obtained measurement data is visualized in a small cube, and the three types of parameters are set. Each X
Arrange them in a cubic shape as shown in the figure in a three-dimensional space defined by the axes, the Y axis, and the Z axis. Then, at the time of this arrangement, a special color is added to the small cube corresponding to the measurement data for which a good result is obtained in the simulation. By doing so, it becomes clear that small cubes having a special color are distributed in a specific partial area in the cubic shape, and the operator can narrow the adjustment ranges of the three types of parameters by observing this distribution area. it can.

[0005]

However, in the data display method using only colors as shown in FIG. 4, since a large number of small cubes are arranged so as to form a cubic shape, it is difficult to identify a specific partial area. May become. That is, when the color-coded specific partial area is near the surface of the cube shape, it is easy to identify, but when it is inside the cubic shape, the specific partial area is blocked by the small cube near the surface, making it difficult to identify. Become.

In view of the above problems, it is an object of the present invention to improve the visibility when a large number of data are visualized in a small three-dimensional form, and three-dimensional shapes are displayed and special data is highlighted. is there.

[0007]

According to the present invention, a large number of data having three types of independent variables as elements are represented by small solids respectively, and these small solids are stored in a three-dimensional space set on a display screen. In the data display method of displaying the large number of small solids in a predetermined solid shape by sequentially arranging them at intervals with respect to each other, each of the large number of data is Flag data indicating whether or not each of the plurality of small solids is displayed in one of a plurality of colors according to the value of the corresponding data, and the flag data is added. The step of expanding the small solid corresponding to the data and displaying it in a different orientation from the other small solids. The features.

[0008]

The data used in the present invention is, for example, data obtained by simulation and is displayed one by one in the form of small solids. These small solids are, for example, a plurality of lines on one straight line. A small solid is placed, then multiple small solids are combined on this plane, and many small solids are placed on one plane. It is displayed in a format in which multiple objects are combined into a three-dimensional shape. Then, in such a display process, an operation of changing the color of a small solid or changing the size and the direction is performed based on the value of each data and the flag data given to each data as a result of the simulation.

[0009]

EXAMPLE An example in which the present invention is applied to a beam entrance portion of a cyclotron will be described. FIG. 1 shows an incident part for guiding the beam to the accelerator body, which receives the beam accelerated by the preceding accelerator. This incident part is roughly divided into two parts. The first part directs the incident beam by 90
The inflator 11 is bent to be placed on the acceleration orbit of the accelerator body, and the second portion is a beam converging unit 12 for converging the beam at the opening of the inflator 11. The beam focusing unit 12 includes four magnetic lenses 12a to 1a.
2d is arranged and these magnetic lenses 12a-1
The focal length can be adjusted by changing the value of the current passed through 2d. The adjustment target here is to adjust the focal length of each magnetic lens so that the incident beam is adjusted by the inflector 1.
It is to be able to pass through one opening (φ6 mm).

In the present situation, the operator reads the detection value by a current sensor (not shown) provided in the inflector 11 and determines the current value to be passed through the four magnetic lenses 12a to 12d so as to maximize the current value. The adjustment dial is used as a parameter to set the optimum value through repeated trial and error. However, as described above, this work requires skill because the four magnetic lenses influence each other.

There are two possible factors that make such setting work difficult. The first factor is that there is no pointer for parameter setting, and the second factor is that it is difficult to operate a plurality of parameters at the same time because the adjustment dial is used. On the other hand, the present invention exerts a function as a human interface for setting support in the sense that the operability of parameter setting is improved and the range of adjusting the setting value is effective to give a guideline. is there.

FIG. 2 shows an example of data display according to the present invention. Here, a simulation is performed by changing various currents to the magnetic lenses 12a to 12d in the beam entrance part of the cyclotron as shown in FIG. Is calculated, and the calculation result is visualized as data in a cube and displayed as a three-dimensional distribution in a three-dimensional space. In particular, in FIG. 2, the magnetic lens 1
When the adjustment range of 2b is assigned to the X axis, the adjustment range of the magnetic lens 12c is assigned to the Y axis, the adjustment range of the magnetic lens 12a is assigned to the Z axis, and the current value of the magnetic lens 12d is set to 35% of the standard value. The distribution of the probability that the beam passes through the inflector 11 is shown in the three-dimensional space.

As is clear from FIG. 2, a large number of small cubes are gathered to form a cubic shape. Here, in order to make it easier to distinguish the cube (data) in the region to be noticed from the cube (data) in the other region, the color of the cube is different from that of the cube in the other region. It is larger than that of the other areas, and the orientation of the cube is different from that of other areas.

In such a display, a large number of data obtained as a result of the above simulation are displayed as P (xi, yi, zi).
(However, 0 ≦ P ≦ 100), and a color is assigned according to the size (for example, 0 to 20: yellow, 21 to 4).
0: Yellowish green, 41-60: Green, 61-80: Brown, 81-
100: Red) In addition, as a result of simulation, F
The flag data represented by (xi, yi, zi) is added, and the shape of the cube is expanded and the orientation is changed for the data to which the flag data is added.

It should be noted that (xi, yi, zi) represents a coordinate value in a three-dimensional space, and 0≤xi≤1, 0≤yi≤1, 0≤.
zi ≦ 1. In addition, flag data F (xi, yi,
zi) is "1", indicating that it is in the region of interest,
"0" indicates that it is in the other area.

It is also effective to draw a large number of cubes by the perspective projection method and then make a shadow by illuminating from one arbitrary direction.

FIG. 3 shows a flow chart for displaying data as described above. FIG. 3A is a flow chart for visualizing a large number of data in small cubes, arranging them one by one in a three-dimensional space, and finally forming a large cube shape as shown in FIG. ..

FIG. 3B specifically shows the display step S4 in FIG. 3A, in which the value of the data P (xi, yi, zi) and the flag data F are displayed in the process of displaying the small cube.
It is a flowchart for color-coding a small solid according to (xi, yi, zi), and enlarging and changing the direction.

In FIG. 3 (a), dx, dy and dz represent the intervals between the small cubes. Steps S1, S2, S3
Are initializations of xi, yi, and zi, respectively, and in steps S4 to S6, a plurality of small cubes (including enlarged ones) are arranged on one straight line along the Z axis. To be done. When the process proceeds to step S8, this time, a plurality of the above linear arrangements are combined in the Y-axis direction to form a large number of small cubes on one plane. Further, when the process proceeds to step S10, a plurality of flat arrangements are combined in the X-axis direction to form a large cubic arrangement as shown in FIG.

Now, in FIG. 2, the expanded red cube indicates that the red color is the optimum beam,
Coordinates (xi, yi, zi) are magnetic lenses 12b, 12
This shows that the current values are optimal for c and 12d.
From this fact, paying attention to the enlarged red cube on the screen, the magnetic lenses 12b to 12d corresponding to the coordinates thereof.
The current value of should be set. As is well known, the image shown in FIG. 2 can be rotated in any direction. Therefore, when the enlarged red cube is difficult to see, this rotation operation can make it easier to see.

On the other hand, since the display by this method is theoretical, the enlarged red cube may not be the optimum value. From this fact, in the actual setting work, not only the expanded red cubes but also the expanded cubes including the expanded brown cubes are considered to be the area of interest, and the internal and peripheral parts are set. Will be done.

As is apparent from the above description, by using the data display method according to the present invention, conventionally, it is necessary to search for the optimum value while changing each of the four kinds of current values as parameters. On the other hand, since three types of current values can be determined at the same time, and a region to be noted is given, the setting work becomes easy and the time is shortened.

In the embodiment, a small cube is used to visualize the data, and the overall shape is a cube. However, any shape may be used as long as the shape is different depending on the viewpoint. The field of application of the present invention is
Three-dimensional display of X-ray CT images, three-dimensional display during ultrasonic diagnosis, visualization of internal conditions such as nondestructive inspection, and the like are conceivable.

[0024]

As described above, according to the present invention, it is possible to significantly improve the visibility when a large number of data are visualized in a small three-dimensional form and a three-dimensional shape is displayed and special data is highlighted. By using a control system in which a plurality of types of parameters are used as setting conditions, there is an advantage that setting work to an optimum state can be facilitated and working time can be significantly shortened.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic structure of a beam entrance part of a cyclotron to which the present invention is applied.

FIG. 2 is a diagram showing an example of data display according to the present invention.

FIG. 3 is a flow chart for explaining the flow of data display according to the present invention.

FIG. 4 is a diagram showing a conventional display example.

[Explanation of symbols]

 11 Inflectors 12a to 12d Magnetic lens

Claims (3)

[Claims] 1. A large number of data each having three types of independent variables as elements are represented by small solids, and these small solids are sequentially arranged at intervals in a three-dimensional space set on a display screen. Thus, in the data display method for displaying the large number of small solids so as to have a predetermined solid shape, each of the large number of data is flag data indicating whether or not the data is remarkable data. Is given in advance,
Displaying each of the large number of small solids in any of a plurality of types of colors according to the value of the corresponding data,
A method for displaying data, comprising the steps of enlarging a small solid corresponding to the data to which the flag data is added and displaying it while changing its orientation from other small solids. 2. The data display method according to claim 1, wherein the small solid and the enlarged solid are each shaded as if they were illuminated from a predetermined direction. 3. The data display method according to claim 2, wherein the predetermined three-dimensional shape is rotatable in a desired direction.