WO2017149721A1 - Display control device - Google Patents

Abstract

Provided is a display control device, comprising: an input acceptance unit (11) which accepts command information which indicates a designation of an arbitrary range of a three-dimensional graph region in which a three-dimensional graph is positioned and which a display device (3) is caused to display; and a three-dimensional graph render processing unit (14) which, on the basis of the command information which the input acceptance unit (11) has accepted, extracts, from the three-dimensional graph region, the three-dimensional graph region of the arbitrary range, and creates rendering data to be used in causing the display device (3) to display said three-dimensional graph region of the arbitrary range together with a three-dimensional graph of the portion which is positioned in the extracted three-dimensional graph region.

Description

Display control device

The present invention relates to a display control device that displays a three-dimensional graph on a display device.

When a graph showing a plurality of data series is displayed, a virtual three-dimensional graph is generated by shifting the graph for each series in the three-dimensional coordinate space, and the three-dimensional graph is projected onto a two-dimensional plane as an image There is a technique for displaying on a display device having a two-dimensional surface screen.
However, with such a technique, for example, when it is desired to determine the magnitude relationship such as whether the reference value is exceeded in each series, the user needs to perform processing such as storing and comparing graphs in his / her head. there were.
On the other hand, Patent Document 1 proposes a method for easily grasping the magnitude relation of the series displayed on the three-dimensional graph by displaying a temporary plane on the three-dimensional graph.

JP 2000-259848 A

In the technique as disclosed in Patent Document 1, the provisional plane is displayed on the three-dimensional graph. For example, the user can easily view the upper and lower three-dimensional graphs divided by the provisional plane. It is possible to grasp the magnitude relationship of series.
However, in the technique disclosed in Patent Document 1, for example, in order to search for a specific pattern having an important significance from among a huge number of patterns, the user stores the graph, There was a problem that it was necessary to perform processing such as extraction and comparison.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a display control apparatus that can extract an arbitrary section of a three-dimensional graph area.

In the display control device according to the present invention, an input receiving unit that receives instruction information in which an arbitrary range of a three-dimensional graph area in which a three-dimensional graph is arranged displayed on the display device is specified, and an input receiving unit receives In order to extract an arbitrary range of 3D graph area from the 3D graph area based on the specified instruction information, and display it on the display device together with the 3D graph of the portion arranged in the extracted 3D graph area And a three-dimensional graph drawing processing unit for creating the drawing data.

According to the present invention, it is possible to extract an arbitrary section of the three-dimensional graph area. For this reason, for example, it is possible for the user to easily search for a specific pattern.

It is a block diagram of the display control apparatus which concerns on Embodiment 1 of this invention. In Embodiment 1, it is a figure which shows an example which displayed on the display apparatus the data stored in the data storage file as a three-dimensional trend graph. In Embodiment 1, it is a figure which shows the state as which the three-dimensional graph area | region which is the range extracted from the three-dimensional graph area shown in FIG. 2 was designated by the provisional plane as an example. In the first embodiment, a 3D graph area that is a range designated by the provisional plane shown in FIG. 3 is extracted from the 3D graph area shown in FIG. 2, and is arranged in the extracted 3D graph area. It is a figure which shows an example displayed on the display apparatus with the series of a trend graph. It is a flowchart explaining operation | movement of the display control apparatus which concerns on Embodiment 1 of this invention. In Embodiment 1, it is a figure explaining an example of the content of the process content definition file. 5 is a flowchart illustrating details of trend graph display processing in the first embodiment. 5 is a flowchart illustrating details of a trend graph extraction process for extracting a part of a three-dimensional graph region displayed on a display device in the first embodiment. In Embodiment 1, the flowchart explaining the detail of the pre-extraction state restoration process which returns to the state before extracting a trend graph from the state which extracted and displayed the part of the trend graph currently displayed on the display apparatus. It is. 5 is a flowchart for explaining an operation of changing a range of an extracted three-dimensional graph area after extracting and displaying a part of a trend graph in the first embodiment. 11A and 11B are diagrams showing an example of a hardware configuration of the display control apparatus according to Embodiment 1 of the present invention. In the display control apparatus which concerns on Embodiment 2 of this invention, it is a flowchart explaining the detail of a trend graph extraction process. In Embodiment 2, it is a figure explaining an example which the drawing control part displayed on the display apparatus the temporary plane and the series of the trend graph on the display apparatus in step ST1215 of FIG. In the display control apparatus which concerns on Embodiment 3 of this invention, it is a flowchart explaining the detail of the process which extracts a part of trend graph displayed on the display apparatus. In Embodiment 3, along with data from which a part of a three-dimensional graph region for displaying a trend graph is extracted on the display device, a temporary plane parallel to the XZ plane and a vertical direction that serves as a guide for moving the temporary plane It is a figure which shows an example by which the slider of was displayed. In Embodiment 3, an example is shown in which the extracted three-dimensional graph area is divided by a provisional plane, and the trend graph series is displayed on the display device through a value smaller than the provisional plane, that is, the position of the slider. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a display control apparatus 1 according to Embodiment 1 of the present invention.
The display control device 1 is a computer including a desktop computer, a laptop computer, a tablet computer, or the like, a CPU (Central Processing Unit) or a GPU (Graphic Processing Unit), a memory such as a hard disk, and an input / output interface. The hardware included in a standard computer, and an operating system that manages or controls these hardware.

The display control device 1 displays an image obtained by projecting a three-dimensional graph on a two-dimensional plane on the display device 3.
Here, the three-dimensional coordinate space refers to a virtual coordinate space defined by three orthogonal axes of the X axis, the Y axis, and the Z axis. A three-dimensional graph refers to a virtual graph arranged in a virtual three-dimensional coordinate space. The three-dimensional graph region refers to a region for displaying a virtual three-dimensional graph in the virtual three-dimensional coordinate space, that is, a virtual region in which a virtual three-dimensional graph is arranged.
Here, as an example, it is assumed that the display control device 1 causes the display device 3 to display a trend graph indicating a plurality of data series as a three-dimensional graph. In addition, regarding the trend graph, here, the display control device 1 is assumed to display a trend graph representing data on the display device 3 according to the time transition as an example.

As shown in FIG. 1, the display control device 1 is connected to an input device 2 and a display device 3. Further, the processing content definition file 4 and the data storage file 5 are stored in, for example, a server (not shown), and the display control device 1 accesses the server via the network to store the processing content definition file 4 and the data storage file 5. refer.
In the first embodiment, the input device 2 is an input device provided with, for example, a mouse, a touch panel, a microphone, or the like. The input device 2 receives an operation content by the operator and performs the operation on the display control device 1 via a communication unit (not shown). Instruction information regarding the operation content received from the user is transmitted.
In the first embodiment, the display device 3 is a display device having a two-dimensional display screen such as a CRT (Cathode Ray Tube) or a liquid crystal, for example, and the three-dimensional graph drawing processing unit 14 of the display control device 1. The image is displayed based on the drawing data output from the.

The display control device 1 includes an input receiving unit 11, an event processing unit 12, a data processing unit 13, and a three-dimensional graph drawing processing unit 14.
The input accepting unit 11 accepts the operation content by the operator transmitted from the input device 2 as instruction information.
The event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown) and analyzes the instruction information received by the input receiving unit 11. In the processing content definition file 4, specific instruction contents corresponding to the instruction information are defined.

The data processing unit 13 processes various data according to the processing content analyzed by the event processing unit 12. Further, the data processing unit 13 controls the drawing data creation operation by the three-dimensional graph drawing processing unit 14 according to the processing content analyzed by the event processing unit 12.
The three-dimensional graph drawing processing unit 14 is based on the data accumulated in the data storage file 5 and the data output from the data processing unit 13, the trend graphs arranged in the three-dimensional graph region, the three-dimensional graph region, Drawing data indicating an image obtained by projecting a provisional plane or the like that divides the dimensional graph region onto a two-dimensional plane is created, and an image based on the drawing data is displayed on the display device 3. The data storage file 5 stores various data for drawing a trend graph.
Further, the three-dimensional graph drawing processing unit 14 extracts a three-dimensional graph region of an arbitrary range from the three-dimensional graph region based on the instruction information received by the input receiving unit 11, and the three-dimensional graph of the extracted range. It is displayed on the display device 3 together with the trend graph of the portion arranged in the area.
The three-dimensional graph drawing processing unit 14 includes a series drawing processing unit 141, a coordinate system drawing processing unit 142, a plane drawing processing unit 143, and a drawing control unit 144.
The series drawing processing unit 141 creates drawing data relating to each series of the trend graph.
The coordinate system drawing processing unit 142 draws drawing data for each reference coordinate axis in the three-dimensional coordinate space, that is, the X axis, Y axis, and Z axis, and the reference plane, that is, the XY axis, YZ axis, and ZX axis. create.
The plane drawing processor 143 creates provisional plane drawing data. In addition, when the operator operates a slider described later, the plane drawing processing unit 143 creates drawing data of a temporary plane corresponding to the operation of the slider.
The drawing control unit 144 causes the display device 3 to display an image based on the drawing data created by the series drawing processing unit 141, the coordinate system drawing processing unit 142, and the plane drawing processing unit 143.

2, 3, and 4 are diagrams illustrating an example of a three-dimensional trend graph displayed on the display device 3 by the display control device 1 according to the first embodiment.
Hereinafter, with respect to the plane, region, etc. set in the virtual three-dimensional coordinate space by the processing in the display control device 1, the plane, region, etc. displayed on the display device 3 as an image projected on the two-dimensional plane The description will be given without distinction.
Actually, for example, processing on a plane, a region, or the like set in a virtual three-dimensional coordinate space in the display control device 1 is also performed by an operation on a plane, a region, or the like displayed on the display device 3.
FIG. 2 is a diagram showing an example in which the data stored in the data storage file 5 is displayed on the display device 3 as a three-dimensional trend graph in the first embodiment.
In FIG. 2, a three-dimensional graph area 101a is an area where a trend graph is arranged. The series 102 a is a three-dimensional trend graph displayed based on data accumulated in the data storage file 5. The sliders 103 and 104 are pointers for instructing the display positions of the temporary planes 105 and 106. The provisional planes 105 and 106 are planes parallel to the YZ plane, which is one of the reference planes in the three-dimensional coordinate space. In the first embodiment, the provisional planes 105 and 106 are used to designate a range to be extracted from the three-dimensional graph area 101a. It is a plane.

FIG. 3 is a diagram illustrating, as an example, a state in which the three-dimensional graph region 201a that is the range extracted from the three-dimensional graph region 101a illustrated in FIG. .
3 shows that the operator slides the sliders 103 and 104 in FIG. 2 to the positions of the sliders 203 and 204 to move the positions of the temporary planes 105 and 106 to the positions of the temporary planes 205 and 206 in FIG. As a result, the three-dimensional graph area 201a sandwiched between the provisional plane 205 and the provisional plane 206 is designated as a range to be extracted. A series 202a indicates a trend graph arranged in the three-dimensional graph area 201a. A three-dimensional graph region 201b indicates a three-dimensional graph region other than the extracted three-dimensional graph region 201a, and a series 202b indicates a trend graph arranged in the three-dimensional graph region 201b.

FIG. 4 shows the extraction of the three-dimensional graph region 201a that is the range specified by the provisional planes 205 and 206 shown in FIG. 3 from the three-dimensional graph region 101a shown in FIG. It is a figure which shows an example displayed on the display apparatus 3 with the series 202a of the trend graph arrange | positioned in the three-dimensional graph area | region 201a.
In FIG. 4, a three-dimensional graph region 301a is a three-dimensional graph region in a state where the three-dimensional graph region 201a in FIG. 3 is extracted. The three-dimensional graph region 301b is a three-dimensional graph region remaining after the three-dimensional graph region 201a in FIG. 3 is extracted. The series 302a is a trend graph arranged in the extracted three-dimensional graph area 301a, and the series 302b is a trend graph arranged in the remaining three-dimensional graph area 301b. The sliders 303 and 304 are pointers indicating the positions of temporary planes 305 and 306 that are end faces of the extracted three-dimensional graph region 301a.

The operation will be described.
FIG. 5 is a flowchart for explaining the operation of the display control apparatus 1 according to Embodiment 1 of the present invention.
Here, as an example, the state in which the 3D graph area extracted from the 3D graph area 101a as shown in FIG. 2 is not designated, and the 3D graph area 301a as shown in FIG. In the following, it is assumed that the state in which the is extracted is switched. Assume that the state shown in FIG. 2 is displayed as the initial state.

The input reception unit 11 determines whether or not there is an input operation by the operator (step ST501). Specifically, the input receiving unit 11 determines whether or not there is an input operation by determining whether or not the instruction information is received from the input device 2. For example, the operator operates the input device 2 with an instruction to start displaying a trend graph on the display device 3 or an instruction to extract a part of a three-dimensional graph area displayed on the display device 3. To do. When the input device 2 receives an operation from the operator, the input device 2 transmits the content of the received operation to the display control device 1 as instruction information. In step ST501, the input receiving unit 11 determines whether or not there is an input operation by the operator depending on whether or not the instruction information transmitted from the input device 2 is received.

In step ST501, when there is no input operation by the operator, that is, when the instruction information is not received (in the case of “NO” in step ST501), the input receiving unit 11 repeats the process of step ST501 and receives the instruction information. Wait until.

In step ST501, when there is an input operation by the operator, that is, when instruction information is received (in the case of “YES” in step ST501), the input reception unit 11 outputs the received instruction information to the event processing unit 12. To do.
Then, the event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown), and based on the instruction information received by the input receiving unit 11, the operator's instruction content, that is, the instructed processing content. Analysis is performed (step ST502).

Here, FIG. 6 is a diagram illustrating an example of the content of the processing content definition file 4 in the first embodiment.
As shown in FIG. 6, in the processing content definition file 4, instruction information and instruction content corresponding to the instruction information are associated and defined.
For example, when the operator wants to start displaying the trend graph, he / she operates the input device 2 and clicks the “display start” button displayed on the display device 3 to start displaying the trend graph. Enter the instructions to do. The input device 2 transmits information indicating that the “display start” button has been clicked to the input receiving unit 11 as instruction information indicating that the display start button has been pressed. When receiving the instruction information, the input receiving unit 11 determines that there is an input operation by the operator, and outputs the instruction information to the event processing unit 12. The event processing unit 12 refers to the processing content definition file 4 and specifies that the processing is “display a trend graph based on the data storage file 5” as the instruction content corresponding to the instruction information indicating that the display start button is pressed. .
Note that this is only an example, and the operator may give an instruction to start displaying the trend graph by other methods, and the instruction content and the specific instruction content are associated with each other to define the processing content. It only needs to be defined in the file 4.

As a result of analyzing the instruction content of the operator based on the instruction information received by the input receiving unit 11, the event processing unit 12 determines whether the instruction is for displaying a trend graph (step ST503).
When it is determined in step ST503 that the instruction is to display a trend graph (in the case of “YES” in step ST503), the event processing unit 12 outputs the instruction information received by the input receiving unit 11 to the data processing unit 13. Then, the process proceeds to the trend graph display process (step ST504). The detailed operation of the trend graph display process will be described later.

If it is determined in step ST503 that the instruction is not an instruction to display a trend graph (in the case of “NO” in step ST503), the event processing unit 12 determines whether it is an instruction to extract a trend graph (step ST505).
For example, when the operator wants to extract and display a part from the trend graph (see FIG. 2) displayed on the display device 3, the operator drags the sliders 103 and 104 with the mouse to display the temporary planes 105 and 106. After moving and designating a range to be extracted (see FIG. 3), the “Cut” button displayed on the display device 3 is pressed. The input device 2 transmits the position information of the designated sliders 203 and 204 and provisional planes 205 and 206 and information on the pressing of the cutout button to the input receiving unit 11 as instruction information.
The event processing unit 12 refers to the processing content definition file 4 (see FIG. 6), and from the instruction information indicating that the cut button is pressed, the instruction content “extracts and displays the area and data series enclosed by the temporary plane”. Identify that there is.

When it is determined in step ST505 that the instruction is a trend graph extraction instruction (in the case of “YES” in step ST505), the event processing unit 12 outputs the instruction information received by the input receiving unit 11 to the data processing unit 13. The process proceeds to the trend graph extraction process (step ST506). The detailed operation of the trend graph extraction process will be described later.

When it is determined in step ST505 that the instruction is not a trend graph extraction instruction (in the case of “NO” in step ST505), the event processing unit 12 determines whether the instruction is an instruction to undo trend graph extraction (step ST505). ST507).
For example, the operator wants to return from the state (see FIG. 4) in which a part of the trend graph displayed on the display device 3 is extracted and displayed to the state before the trend graph is extracted (see FIG. 2). Then, the “return” button displayed on the display device 3 is pressed. The input device 2 transmits information indicating that the “undo” button has been pressed to the input receiving unit 11 as instruction information.
The event processing unit 12 refers to the processing content definition file 4 (see FIG. 6), and indicates the instruction content “return and display the extracted trend graph” from the instruction information indicating that the undo button is pressed. Is identified.
Note that this is only an example, and the operator may give an instruction to return to the state before extracting the trend graph by other methods, and the instruction and the specific instruction content are associated with each other. It only needs to be defined in the processing content definition file 4.

If it is determined in step ST507 that the instruction is to restore the trend graph extraction (in the case of “YES” in step ST507), the event processing unit 12 displays the instruction information received by the input receiving unit 11 as the data processing unit. 13 and proceeds to the pre-extraction state restoration process (step ST508). The detailed operation of the pre-extraction state restoration process will be described later.

If it is determined in step ST507 that the instruction is not an instruction to return trend graph extraction (in the case of “NO” in step ST507), the process returns to step ST501.

FIG. 7 is a flowchart for explaining the details of the trend graph display process in the first embodiment. The trend graph display processing described in FIG. 7 is performed by the three-dimensional graph drawing processing unit 14 based on an instruction from the data processing unit 13.
When it is determined in step ST503 in FIG. 5 that the instruction is to display a trend graph (in the case of “YES” in step ST503), the coordinate system drawing processing unit 142 determines each reference coordinate axis and each reference in the three-dimensional coordinate space. Drawing data for displaying a plane on the display device 3 is created (step ST701).

The display control device 1 stores various variables therein.
Specifically, first, a variable indicating the type of the three-dimensional graph to be displayed, each reference coordinate axis in the three-dimensional coordinate space, that is, a variable used for displaying the X axis, the Y axis, the Z axis, and the like, each reference coordinate This is a variable indicating the interval of the scale relative to, and a variable required when drawing various three-dimensional graphs.
The values of these variables can be appropriately set in advance so that the display is easy to see, taking into account the size and resolution of the display screen of the display device 3, for example.

Further, the display control device 1 internally includes a variable used for associating the data read from the data storage file 5 with the trend graph, a numerical value indicating the position of the sliders 103, 104, 203, 204, that is, the provisional plane 105. , 106, 205, 206 are also stored with a variable indicating the value of the X coordinate indicating the distance from the YZ plane.

In step ST701, the coordinate system drawing processing unit 142 creates drawing data for displaying each reference coordinate and each reference plane in the three-dimensional coordinate space based on each variable. At this time, the coordinate system drawing processing unit 142 can also display numbers and characters corresponding to the scales of the respective axes.

The series drawing processing unit 141 creates drawing data for displaying a trend graph from the data storage file 5 through the communication unit (not shown) based on the instruction information received by the input receiving unit 11 in step ST501 of FIG. (Step ST702).
The data storage file 5 stores, for example, various data to be displayed in a trend graph, such as a harvest amount of a plurality of types of fruits for the past 30 years, a population by prefecture for the past 50 years, and the like.
For example, assuming that the data storage file 5 stores population data of prefectures A, B, C, D, and E in the Kanto region from 1965 to 2015. 141 obtains data on populations of prefectures A, B, C, D, and E from 1965 to 2015 from the data storage file 5 and displays a trend graph based on the obtained data. Create drawing data for As described above, the series drawing processing unit 141 creates drawing data for displaying a plurality of data series, that is, data for each of the A prefecture, B prefecture, C prefecture, D prefecture, and E prefecture as a trend graph. To do.
That is, in step ST702, the series drawing processing unit 141 creates drawing data for displaying a trend graph indicating a plurality of data series on the display device 3.

The plane drawing processing unit 143 creates drawing data for displaying the provisional planes 105 and 106 (step ST703).
Here, for example, it is assumed that a variable that is a numerical value indicating the position of the sliders 103 and 104, that is, a numerical value indicating the distance of the provisional planes 105 and 106 from the YZ plane, is set as an initial value. That is, the provisional planes 105 and 106 are displayed at positions indicating the YZ plane.
Here, the plane drawing processing unit 143 displays the provisional planes 105 and 106 at the positions indicating the YZ plane as an initial value. However, the present invention is not limited to this, and at which position the provisional planes 105 and 106 are displayed. Whether it is displayed can be set as appropriate.
Here, the plane drawing processing unit 143 draws the temporary planes 105 and 106 as transparent planes, but the present invention is not limited to this, and the temporary planes 105 and 106 may be opaque planes. Further, a shaded plane may be used as a display of a plane having transparency, or a hatched plane may be used.

The drawing control unit 144 causes the display device 3 to display an image based on the drawing data created in steps ST701 to ST703 (step ST704).
Thereby, for example, an image based on the drawing data as shown in FIG. 2 is displayed on the display device 3.
Here, it is assumed that new time-series data stored in the data storage file 5 is displayed toward the plus side on the X axis shown in FIG.
In step ST704, the data processing unit 13 may temporarily store the drawing data created in steps ST701 to ST703 in the display control apparatus 1.
And it returns to step ST501 of FIG.
Here, the trend graph display process described with reference to FIG. 7 has been described as being performed in the order of steps ST701 to ST703. However, the order of the processes for creating each drawing data is not limited to this. You may carry out in order.

FIG. 8 is a flowchart for explaining the details of the trend graph extraction process for extracting a part of the three-dimensional graph region displayed on the display device 3 in the first embodiment.
The trend graph extraction processing described in FIG. 8 is performed by the three-dimensional graph drawing processing unit 14 based on an instruction from the data processing unit 13.
In the first embodiment, before the trend graph extraction process described in FIG. 8, the trend graph is displayed on the display device 3 in the trend graph display process described in FIG. 7 (see FIG. 2). ).

Here, when the operator wants to extract and display a part from the trend graph displayed on the display device 3, he / she wants to move the temporary planes 105 and 106 by dragging the sliders 103 and 104 with the mouse operation. After designating the range, the “Cut button” displayed on the display device 3 is pressed. The input device 2 transmits the position information of the designated sliders 203 and 204 and provisional planes 205 and 206 and information on the pressing of the cutout button to the input receiving unit 11 as instruction information. Specifically, for example, as shown in FIGS. 2 and 3, the sliders 103 and 104 are respectively dragged to the positions of the sliders 203 and 204 by the operator, whereby the temporary planes 105 and 106 are changed to the temporary planes 205 and 206. It is assumed that the range to be extracted is designated by moving to each position. The range to be extracted can be arbitrarily designated by the operator.

If it is determined in step ST505 that the instruction is a trend graph extraction instruction (in the case of “YES” in step ST505), the data processing unit 13 acquires the position information of the sliders 203 and 204 included in the received instruction information. Then, based on the position, the value of the X coordinate indicating the position of each of the sliders 203 and 204 is set as a variable (step ST801). The data processing unit 13 outputs the set variable information to the three-dimensional graph drawing processing unit 14.

The coordinate system drawing processing unit 142 creates drawing data for displaying the extracted three-dimensional graph area based on each variable set by the data processing unit 13 in step ST801 (step ST802). Specifically, first, the data processing unit 13 displays a three-dimensional graph sandwiched between temporary planes 205 and 206 that is displayed before the current operation related to the extraction of the trend graph displayed on the display device 3 is performed. The display of the area 201a (see FIG. 3) is invalidated, that is, the three-dimensional graph area 201a is deleted.
The coordinate system drawing processing unit 142 then extracts the three-dimensional graph region to be extracted based on the variables set by the data processing unit 13 in step ST801, that is, the three-dimensional graph sandwiched between the temporary planes 205 and 206 shown in FIG. Drawing data for displaying the area 201a in front by a predetermined coordinate in the Z-axis direction is created. Predetermined coordinates can be set as appropriate.
That is, in step ST802, the coordinate system drawing processing unit 142 creates drawing data for displaying the three-dimensional graph region 301a shown in FIG. At this time, the coordinate system drawing processing unit 142 can also display numbers and characters corresponding to the scales of the respective axes.
Further, the coordinate system drawing processing unit 142 transmits the drawing color at the position where the three-dimensional graph area remaining after the three-dimensional graph area 201a is extracted, that is, the three-dimensional graph area 201b shown in FIG. Drawing data to be displayed as the three-dimensional graph area 301b is created (step ST803).

The plane drawing processing unit 143 creates drawing data in which the display positions of the sliders 203 and 204 designated by the operator are changed based on the variables set by the data processing unit 13 in step ST801 (step ST804). Specifically, first, the data processing unit 13 invalidates the display of the sliders 203 and 204 (see FIG. 3) displayed before the current operation related to the extraction of the trend graph displayed on the display device 3 is performed. That is, the sliders 203 and 204 are erased.
Then, the plane drawing processing unit 143 displays drawing data for displaying the sliders 203 and 204 in the foreground by a predetermined coordinate in the Z-axis direction based on the variables set by the data processing unit 13 in step ST801. create. That is, in step ST804, the plane drawing processing unit 143 creates drawing data for displaying the sliders 303 and 304 shown in FIG.
The coordinates determined in advance in the Z-axis direction can be set as appropriate, but are the same as the coordinates for the coordinate system drawing processing unit 142 to display the three-dimensional graph area in front in step ST802.

Furthermore, the plane drawing processing unit 143 creates drawing data in which the display positions of the temporary planes 205 and 206 designated by the operator are changed based on the variables set by the data processing unit 13 in step ST801 (step ST805). . Specifically, first, the data processing unit 13 displays the temporary planes 205 and 206 displayed before the current operation related to the extraction of the trend graph displayed on the display device 3 is performed (see FIG. 3). It is invalidated, that is, the temporary planes 205 and 206 are deleted.
Then, the plane drawing processing unit 143 draws the temporary planes 205 and 206 to be displayed in front of the coordinates determined in advance in the Z-axis direction from the position based on the variable set by the data processing unit 13 in step ST801. Create data. That is, in step ST805, the plane drawing processing unit 143 creates drawing data for displaying the temporary planes 305 and 306 shown in FIG.
The coordinates determined in advance in the Z-axis direction can be set as appropriate, but are the same as the coordinates for the coordinate system drawing processing unit 142 to display the three-dimensional graph area in front in step ST802.

The series drawing processing unit 141 is sandwiched between temporary planes 205 and 206 designated by the operator among the values of each series of the trend graph in the current drawing data based on the variables set by the data processing unit 13 in step ST801. For the values not in the range, that is, for the series 202b shown in FIG. 3, the drawing data through which the drawing color is transmitted is created (step ST806). Thus, the trend graph series 202b arranged in the three-dimensional graph area 201b remaining after the three-dimensional graph area 201a is extracted is like the trend graph series 302b displayed in the three-dimensional graph area 301b of FIG. Then, it is drawn transparently.
In addition, the series drawing processing unit 141 pre-loads values in a range between the temporary planes 205 and 206 designated by the operator in the Z-axis direction among the values of each series of the trend graph in the current drawing data. Drawing data to be displayed in front of the determined coordinates is created (step ST807). Specifically, first, the data processing unit 13 invalidates the display of the series 202a (see FIG. 3) displayed before the current operation related to the extraction of the trend graph displayed on the display device 3 is performed. That is, the series 202a is deleted.
Then, series drawing processing unit 141 creates drawing data for displaying series 202a in the foreground by a predetermined coordinate in the Z-axis direction based on each variable set by data processing unit 13 in step ST801. . That is, in step ST807, the series drawing processing unit 141 creates drawing data for displaying the series 302a shown in FIG.
The coordinates determined in advance in the Z-axis direction can be set as appropriate, but are the same as the coordinates for the coordinate system drawing processing unit 142 to display the three-dimensional graph area in front in step ST802.

Drawing controller 144 causes display device 3 to display an image based on the drawing data created in steps ST802 to ST807 (step ST808), and returns to step ST501 of FIG.
As described above, the positions of the sliders 203 and 204 are designated by the operator, and the positions of the temporary planes 205 and 206 are designated accordingly, and the extracted three-dimensional graph area and the range of the trend graph are designated. By displaying the three-dimensional graph region 201a in the range in front of a predetermined coordinate in the Z-axis direction, the extracted three-dimensional graph region 301a is displayed. In addition, a trend graph series 202a arranged in the three-dimensional graph area 201a is also extracted and displayed as a series 302a.
Here, the trend graph extraction process described with reference to FIG. 8 has been described as being performed in the order of step ST802 to step ST807, but the order of the process of creating each drawing data is not limited to this. Any order may be used.

FIG. 9 shows a state of pre-extraction state restoration processing for returning to a state before extracting a trend graph from a state in which a part of the trend graph displayed on the display device 3 is extracted and displayed in the first embodiment. It is a flowchart explaining a detail.
That is, before the state extraction process before extraction described in FIG. 9, in the trend graph extraction process described in FIG. 8, a part of the trend graph is extracted and displayed on the display device 3 (see FIG. 4). ).
The pre-extraction state restoration process described in FIG. 9 is performed by the three-dimensional graph drawing processing unit 14 based on an instruction from the data processing unit 13.
Here, after extracting and displaying a part of the trend graph, the operator presses the return button displayed on the display device 3 when returning to the display of the trend graph before extraction. . The input device 2 transmits information indicating that the return button has been pressed to the input receiving unit 11 as instruction information.

When it is determined in step ST507 that the instruction is to restore the trend graph extraction (in the case of “YES” in step ST507), the coordinate system drawing processing unit 142 displays the three-dimensional graph area to be restored. Drawing data is created (step ST901). Specifically, first, the data processing unit 13 displays the three-dimensional graph region 301a (see FIG. 5) sandwiched between temporary planes 305 and 306 that was displayed before the current operation for returning the trend graph to its original state. 4) is invalidated, that is, the three-dimensional graph region 301a is deleted. Then, in step ST802 of FIG. 8, the coordinate system drawing processing unit 142 moves the drawing data of the three-dimensional graph area 301a displayed in the foreground in the Z-axis direction backward in the Z-axis direction by a predetermined coordinate. Create the drawing data to be displayed. That is, in this step ST901, the coordinate system drawing processing unit 142 creates drawing data for displaying the three-dimensional graph region 201a shown in FIG. At this time, the coordinate system drawing processing unit 142 can also display numbers and characters corresponding to the scales of the respective axes.
The coordinate system drawing processing unit 142 saves the drawing data of the three-dimensional graph area 201a in the state shown in FIG. 3 even after creating the drawing data after extraction shown in FIG. Using the drawing data, the three-dimensional graph area 301a may be drawn back to be displayed in the Z-axis direction.

Further, the coordinate system drawing processing unit 142 restores the drawing color of the three-dimensional graph region 301b in FIG. 4 through which the drawing color has been transmitted in step ST803 in FIG. 8 (step ST902). Specifically, the coordinate system drawing processing unit 142 returns the drawing data that is not transparent to the three-dimensional graph region 301b in FIG. 4 as in the three-dimensional graph region 201b in FIG. The coordinate system drawing processing unit 142 saves the drawing data of the three-dimensional graph area 201b in the state shown in FIG. 3 even after creating the drawing data after transmission shown in FIG. The drawing data may be used as drawing data for displaying the three-dimensional graph region 301b.

The plane drawing processing unit 143 creates drawing data in which the display positions of the sliders 303 and 304 are restored (step ST903). Specifically, first, the data processing unit 13 invalidates the display of the sliders 303 and 304 (see FIG. 4) displayed before the current operation for returning the trend graph to the original state is performed. That is, the sliders 303 and 304 are erased. Then, in the drawing data created in step ST804 of FIG. 8, the plane drawing processing unit 143 moves the sliders 303 and 304 that are displayed in the Z-axis direction to the front in the Z-axis direction by a predetermined coordinate. Create drawing data to be displayed backward. That is, in step ST903, the plane drawing processing unit 143 creates drawing data for displaying the sliders 203 and 204 shown in FIG.
The plane drawing processing unit 143 saves the drawing data of the sliders 203 and 204 in the state shown in FIG. 3 even after creating the drawing data after extraction shown in FIG. May be used as drawing data to be displayed by displaying the sliders 303 and 304 backward in the Z-axis direction.

Furthermore, the plane drawing processing unit 143 creates drawing data in which the display positions of the provisional planes 305 and 306 are restored (step ST904). Specifically, first, the data processing unit 13 invalidates the display of the temporary planes 305 and 306 (see FIG. 4) displayed before the current operation for returning the trend graph to the original state is performed. That is, the temporary planes 305 and 306 are erased. Then, in the drawing data created in step ST805 of FIG. 8, the plane drawing processing unit 143 draws provisional planes 305 and 306 that are drawn forward in the Z-axis direction by a predetermined coordinate amount in the Z-axis direction. Create drawing data to be displayed in reverse. That is, in step ST904, the plane drawing processing unit 143 creates drawing data for displaying the temporary planes 205 and 206 shown in FIG.
The plane drawing processing unit 143 stores the drawing data of the temporary planes 205 and 206 in the state shown in FIG. 3 even after creating the drawing data after extraction shown in FIG. Data may be used as drawing data for displaying the provisional planes 305 and 306 by retreating them in the Z-axis direction.

The series drawing processing unit 141 creates drawing data in which each series of the transmitted trend graph is restored (step ST905). Specifically, the series drawing processing unit 141 returns the series 302b in FIG. 4 to drawing data that is not transmitted as in the series 202b in FIG. The series drawing processing unit 141 stores the drawing data of the series 202b in the state shown in FIG. 3 even after the transparent drawing data shown in FIG. 4 is created, and uses the saved drawing data. Thus, the drawing data for displaying the series 302b may be used.

In addition, the series drawing processing unit 141 has a range between the temporary planes 305 and 306 among the values of each series of the trend graph in the current drawing data, that is, each series 302a (see FIG. 4). Drawing data returned to the original display position is created (step ST906). Specifically, first, the data processing unit 13 invalidates the display of the series 302a (see FIG. 4) that was displayed before the current operation for returning the trend graph to the original state is performed. The series 302a is deleted. Then, in the drawing data created in step ST807 of FIG. 8, the series drawing processing unit 141 retracts the series 302a that is displayed in the foreground in the Z-axis direction in the Z-axis direction by a predetermined coordinate. Create the drawing data to be displayed. That is, in step ST906, the series drawing processing unit 141 creates drawing data for displaying the series 202a shown in FIG.
The series drawing processing unit 141 stores the drawing data of the series 202a in the state shown in FIG. 3 even after the drawing data after extraction shown in FIG. 4 is created, and uses the saved drawing data. Then, the series 302a may be drawn data to be displayed by being retracted in the Z-axis direction.

The drawing control unit 144 displays an image based on the drawing data created in steps ST901 to ST906 on the display device 3 (step ST907), and returns to step ST501 in FIG.
Here, the pre-extraction state restoration processing described with reference to FIG. 9 has been described as being performed in the order of step ST901 to step ST906, but the order of processing for creating each drawing data is not limited to this. Any order may be used.

In addition, as described above, after extracting a part of the trend graph displayed on the display device 3, drawing data is generated for display by returning to the display before extraction again. However, it is not limited to this. For example, the drawing data before extraction displayed on the display device 3, that is, the drawing data displayed on the display device 3 in step ST704 of FIG. 7 as described above can be temporarily stored. The data processing unit 13 invalidates the display of the display device 3 in a state in which a part of the trend graph is extracted and displayed, that is, in step ST808 of FIG. 8, and temporarily stores it in the drawing control unit 144. You may make it display the drawn data on the display apparatus 3 again.
In addition, the data processing unit 13 invalidates the display of the display device 3 in step ST808 of FIG. 8, and causes the three-dimensional graph drawing processing unit 14 to perform the trend graph display processing described with reference to FIG. 7 again. You may do it.

As described with reference to FIG. 8, the display control device 1 according to the first embodiment of the present invention extracts a part of the trend graph displayed on the display device 3 and displays it on the display device 3. However, after extracting and displaying a part of the trend graph, the operator slides the sliders 303 and 304 to change the range of the extracted trend graph. Can be. The operation will be described in detail.

FIG. 10 is a flowchart for explaining the operation of changing the range of the extracted three-dimensional graph area after extracting and displaying a part of the trend graph in the first embodiment.
Note that the operations in steps ST1001 to ST1008 in FIG. 10 are the same as the operations in steps ST801 to ST808 described with reference to FIG. Here, in the operations of steps ST1001 to ST1008, for example, as shown in FIG. 4, a three-dimensional graph region in an arbitrary range and a trend graph arranged in the three-dimensional graph region are extracted and displayed. And
In step ST1008, when the drawing control unit 144 causes the display device 3 to display an image based on drawing data from which a three-dimensional graph region in an arbitrary range is extracted, the input receiving unit 11 has an input operation from the operator. Until the instruction information is received from the input device 2 (in the case of “NO” in step ST1009).
When the input reception unit 11 receives instruction information from the input device 2 (in the case of “YES” in step ST1009), the input reception unit 11 outputs the received instruction information to the event processing unit 12. Then, the event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown), and analyzes the instruction content of the operator based on the information received by the input receiving unit 11 (step ST1010). The specific operation is the same as step ST502 in FIG.

The event processing unit 12 is an instruction to “move the display position of the temporary plane according to the dragged distance and direction” as a result of analyzing the instruction content of the operator based on the instruction information received by the input receiving unit 11. That is, it is determined whether it is a slider movement instruction (step ST1011).
When the operator wants to change the extraction range of the three-dimensional graph area displayed on the display device 3, the position of the temporary planes 305 and 306 is changed by dragging the sliders 303 and 304 by the mouse operation. Specify the extraction range. The input device 2 receives the drag operation of the sliders 303 and 304, and instructs the input reception unit 11 of information indicating that the drag operation has been received together with information on the direction in which the sliders 303 and 304 are dragged and the dragged distance. Send as information.

If it is determined in step ST1011 that the instruction is a slider movement instruction (in the case of “YES” in step ST1011), the data processing unit 13 invalidates the current display on the display device 3 (step ST1012) and returns to step ST1001. .
Returning to step ST1001, the operations in steps ST1001 to ST1008 are performed on the drawing data temporarily stored in step ST704 of FIG. 7, for example. That is, the three-dimensional graph area and the trend graph are extracted and displayed on the display device 3 within the extraction range changed by the operator. Specifically, the three-dimensional graph drawing processing unit 14 extracts a three-dimensional graph region sandwiched between two temporary planes designated by the operator based on the instruction information received by the input receiving unit 11 in step ST1009. In this case, the operator specifies the extraction range after the change by dragging the sliders 303 and 304 by operating the mouse. However, this is only an example. For example, The extraction range may be input from a keyboard, or a touch panel operation, gesture input using a camera, or voice input from a voice input device such as a microphone may be used.

11A and 11B are diagrams showing an example of the hardware configuration of the display control apparatus 1 according to Embodiment 1 of the present invention.
In the first embodiment of the present invention, the functions of the event processing unit 12, the data processing unit 13, and the three-dimensional graph drawing processing unit 14 are realized by the processing circuit 1101. That is, the display control device 1 includes a processing circuit 1101 for performing display control of the trend graph based on the received operation content.
The processing circuit 1101 may be dedicated hardware as shown in FIG. 11A or may be a CPU (Central Processing Unit) 1104 that executes a program stored in the memory 1103 as shown in FIG. 11B.

When the processing circuit 1101 is dedicated hardware, the processing circuit 1101 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. .

When the processing circuit 1101 is the CPU 1104, the functions of the input receiving unit 11, the event processing unit 12, the data processing unit 13, and the three-dimensional graph drawing processing unit 14 are software, firmware, or a combination of software and firmware. It is realized by. That is, the input receiving unit 11, the event processing unit 12, the data processing unit 13, and the three-dimensional graph drawing processing unit 14 are a CPU 1104 that executes programs stored in an HDD (Hard Disk Drive) 1102, a memory 1103, and the like. This is realized by a processing circuit such as a system LSI (Large-Scale Integration). The programs stored in the HDD 1102, the memory 1103, and the like cause the computer to execute the procedures and methods of the input receiving unit 11, the event processing unit 12, the data processing unit 13, and the three-dimensional graph drawing processing unit 14. It can be said that there is. Here, the memory 1103 is, for example, RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory, etc.) And volatile semiconductor memories, magnetic disks, flexible disks, optical disks, compact disks, mini disks, DVDs (Digital Versatile Discs), and the like.

Note that some of the functions of the input receiving unit 11, the event processing unit 12, the data processing unit 13, and the three-dimensional graph drawing processing unit 14 are realized by dedicated hardware, and part of the functions are software or It may be realized by firmware. For example, the function of the event processing unit 12 is realized by a processing circuit 1101 as dedicated hardware, and the processing circuit of the input receiving unit 11, the data processing unit 13, and the three-dimensional graph drawing processing unit 14 is a memory 1103. The function can be realized by reading out and executing the program stored in.
The display control device 1 also includes a communication I / F device 1105 that performs communication with external devices such as the input device 2 and the display device 3.

As described above, according to the first embodiment, it is possible to extract an arbitrary section of a three-dimensional graph region by extracting and displaying a three-dimensional graph region and a series surrounded by two temporary planes. It becomes. For this reason, for example, it is possible for the user to easily search for a specific pattern.
For example, in the monitoring work to grasp the state of the equipment from the waveform of the trend graph of the line, in order to compare the past waveform with the current waveform, by cutting the waveform of any section and observing the trend, the comparison efficiency Will improve. On the other hand, because the waveform of the trend graph is a continuous numerical value in time series, even if a part of the waveform is an important waveform, that is, the same waveform as the previous important incident, it is buried in the previous and subsequent waveforms. It may be difficult to notice the correlation.
According to the first embodiment, by cutting and displaying a part of the waveform, it is possible to observe only the waveform part to be noticed, and even if it is a part of the continuous waveform, the shape can be easily formed. It becomes possible to grasp.
At this time, it becomes easy to see the waveform of the extracted three-dimensional graph area. On the other hand, how the cut-out waveform is expanded when the cut-out 3D graph area is expanded by moving the end face by leaving the cut-out 3D graph area as a transparent display, that is, as a display that is not completely erased. Whether it changes or not can be estimated from the transmitted waveform. Thereby, the adjustment efficiency of an end surface position improves.

In the first embodiment, when the operator wants to extract and display a part from the trend graph displayed on the display device 3 (see FIG. 2), the “cutout” displayed on the display device 3 is displayed. The button is pressed and the sliders 103 and 104 are slid to move the provisional planes 105 and 106 to specify the range to be extracted. However, the method of specifying the trend graph extraction range by the operator is not limited to this. .
For example, a data designation screen creation unit (not shown) refers to the data storage file 5 and displays a list of various data contents stored in the data storage file and an input unit for inputting a range of data to be displayed. The data designation screen is created and displayed on the display device 3, and the operator confirms the displayed data designation screen, for example, by clicking the mouse or inputting information from the keyboard. You may make it designate the range of the data to extract from the input device 2. FIG. Also in this case, an instruction method using an input means such as gesture input or voice input may be used.

In the first embodiment, the three-dimensional graph area that has not been extracted is left as a transparent display, that is, a display that is not completely erased. However, the present invention is not limited to this, and the state where the transparency is 100%, that is, You may make it be the state erase | eliminated completely.
In Embodiment 1, when a trend graph extraction instruction is received, a three-dimensional graph area 201a sandwiched between temporary planes 205 and 206 shown in FIG. 3 and a series 202a arranged in the three-dimensional graph area 201a are displayed. However, the present invention is not limited to this. For example, the three-dimensional graph region 201a, the series 202a, and the provisional planes 205 and 206 are generated. 3D is extracted by repeating the operations described in steps ST802 to ST808 of FIG. 8 until a predetermined amount of coordinates in the Z-axis direction are displayed in front. Drawing data is generated so that the graph area 201a, the series 202a, and the provisional planes 205 and 206 move continuously and are displayed in the front in the Z-axis direction. It is also possible Unisuru.
In the first embodiment, as shown in FIG. 4, when creating drawing data for displaying a three-dimensional graph region 301a, sliders 303 and 304, provisional planes 305 and 306, and a series 302a, a data processing unit 13 deletes the three-dimensional graph area 201a, sliders 203 and 204, provisional planes 205 and 206, and series 202a shown in FIG. 3 (step ST802, step ST804, step ST805, and step ST807 in FIG. 8). For example, the data processing unit 13 is not limited to the coordinate system drawing processing unit 142, the plane drawing processing unit 143, and the series drawing processing unit 141. The drawing data for display through the series 202a is created so as to create a three-dimensional graph. Even after the area 301a, sliders 303 and 304, provisional planes 305 and 306, and the series 302a are displayed in an extracted state, the three-dimensional graph area 201a, sliders 203 and 204, provisional planes 205 and 206, series 202a may be displayed lightly.

Embodiment 2. FIG.
In the first embodiment, an embodiment has been described in which a part of a three-dimensional graph region is extracted based on a plurality of provisional planes and a trend graph is displayed. In the second embodiment, one of the three-dimensional graph regions is displayed. The trend graph is displayed by extracting the part, and the display angle of the extracted three-dimensional graph area is changed for the extracted three-dimensional graph area so that the trend graph viewed from the front direction of the temporary plane is displayed. An embodiment that makes this possible will be described.

Since the configuration of the display control apparatus 1 according to the second embodiment of the present invention is the same as that described with reference to FIG. 1 in the first embodiment, a duplicate description is omitted. Further, the hardware configuration of the display control apparatus 1 according to the second embodiment of the present invention is the same as that described with reference to FIGS. 11A and 11B in the first embodiment, and thus a duplicate description is omitted.

The operation will be described.
The operation of the display control apparatus 1 according to the second embodiment of the present invention is different only in the operation of step ST506 in FIG. 5 in the first embodiment, that is, the contents of the trend graph extraction process described with reference to FIG. Therefore, redundant description of similar operations is omitted, and only operations different from those of the display control apparatus 1 according to the first embodiment are described.

FIG. 12 is a flowchart for explaining the details of the trend graph extraction process in the display control apparatus 1 according to Embodiment 2 of the present invention.
The operations in step ST1201 to step ST1208 in FIG. 12 are the same as the operations in step ST801 to step ST808 described with reference to FIG. 8 in the first embodiment. Therefore, the redundant description is omitted and the processing after step ST1209 is described. explain.
Here, for example, in step ST1208, it is assumed that a part of the three-dimensional graph area and the trend graph arranged in the three-dimensional graph area are extracted and displayed as shown in FIG.

The input receiving unit 11 waits until there is an input operation from the operator, that is, until the instruction information is received from the input device 2 (in the case of “NO” in step ST1209), and when there is an input operation from the operator ( In the case of “YES” in step ST1209), the event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown) and analyzes the input content of the operator based on the information received by the input receiving unit 11. (Step ST1210).

In the second embodiment, after the operator extracts and displays a part of the three-dimensional graph area for displaying the trend graph (see FIG. 4), the operator further extracts the three-dimensional graph area and the trend graph. The display angle of the three-dimensional graph area and the trend graph is changed, and the trend graph viewed from the front direction of the temporary planes 305 and 306 is displayed, that is, the plan view of the trend graph viewed from the front of the temporary planes 305 and 306 To switch to two-dimensional display. Specifically, for example, the operator clicks a “planar display from the plus side” button or a “planar display from the minus side” button displayed on the display device 3 with a mouse or the like. The display angle of the graph area is changed to instruct which of the provisional planes 305 and 306 to display the trend graph two-dimensionally as a plan view from the front direction. For example, the operator clicks the “plan view from the plus side” button to display the trend graph two-dimensionally as a plan view seen from the plus side on the X axis, that is, from the front direction of the provisional plane 306. Instruct switching. On the other hand, for example, the operator clicks a “planar display from the minus side” button to display a two-dimensional trend graph as a plan view viewed from the minus side on the X axis, that is, from the front direction of the provisional plane 305. Instruct to switch to display.
The input receiving unit 11 receives instruction information indicating that the plane display button is pressed from the plus side or the plane display button is pressed from the minus side.
Then, the event processing unit 12 analyzes the input content of the operator based on the instruction information received by the input device 2. The specific operation is the same as step ST502 in FIG.

As a result of analyzing the instruction content of the operator based on the instruction information received by the input receiving unit 11, the event processing unit 12 displays “a trend graph viewed from the front direction of the plus-side temporary plane” or “ It is determined whether it is an instruction to “display a trend graph viewed from the front direction of the negative temporary plane”, that is, an instruction to switch to the temporary plane viewpoint (step ST1211). The provisional plane viewpoint will be described later with a specific example.

If it is determined in step ST1211 that it is not an instruction to switch to the temporary plane viewpoint (in the case of “NO” in step ST1211), the process returns to step ST501 in FIG.
In step ST1211, when it is determined that the instruction is to switch to the temporary plane viewpoint (in the case of “YES” in step ST1211), the data processing unit 13 temporarily saves the drawing data of the currently displayed image. The display is invalidated (step ST1212).

The plane drawing processing unit 143 creates drawing data when the provisional planes 305 and 306 are viewed from the front (step ST1213).
Note that the data processing unit 13 instructs the plane drawing processing unit 143 based on the instruction information as to which drawing data viewed from the front of the provisional planes 305 and 306 is to be created.
The plane drawing processing unit 143 creates drawing data in which the provisional planes 305 and 306 are viewed from the front according to the instruction from the data processing unit 13.

The coordinate system drawing processing unit 142 superimposes the drawing planes 305 and 306 viewed from the front in step ST1213 on the extracted series 302a of the three-dimensional graph region 301a displayed on the display device 3 in step ST1208. Drawing data to be displayed is created (step ST1214). That is, the coordinate system drawing processing unit 142 draws for displaying the provisional planes 305 and 306 at the positions viewed from the front for the extracted series 302a of the three-dimensional graph area displayed on the display device 3 in step ST1208. Create data. Note that the coordinate system drawing processing unit 142 indicates which of the provisional planes 305 and 306 is to be displayed from the front according to the instruction information received by the input reception unit 11 from the front direction of the plus-side provisional plane. The determination information may be determined based on whether the instruction information is “display a trend graph viewed” or “display a trend graph viewed from the front direction of the negative temporary plane”. Based on the instruction information, the data processing unit 13 instructs the coordinate system drawing processing unit 142 to create drawing data for displaying either of the temporary planes 305 and 306 as viewed from the front.
At this time, the coordinate system drawing processing unit 142 sets the series 302a as drawing data to be displayed with higher transparency as it goes in the past direction of the time series, that is, in the minus direction of the X axis. Therefore, the display color becomes lighter as the data of the older time in the trend graph.

The drawing control unit 144 causes the display device 3 to display an image based on the drawing data created in steps ST1213 and 1214 (step ST1215).

FIG. 13 illustrates an example in which the drawing control unit 144 causes the display device 3 to display the provisional plane 306 and the trend graph series 302a on the display device 3 in step ST1215 of FIG. 12 in the second embodiment. FIG.
FIG. 13 shows a state where, as shown in FIG. 4, the state is switched from the state in which the three-dimensional graph region 301a is extracted to the display of an image based on the drawing data viewed from the front of the temporary plane 306 in accordance with the operator's instruction. Show.
That is, this is a display of the series 302a viewed from the plus side to the minus side of the X axis.
The viewpoint as shown in FIG. 13 is referred to as a provisional plane viewpoint. In addition, a viewpoint that perspectives a three-dimensional graph as illustrated in FIG. 4 is referred to as a three-dimensional viewpoint.
At this time, the series 302a is displayed darker as new values are viewed in time series, and lighter as old values are displayed.

The input receiving unit 11 waits until there is an input operation from the operator, that is, until instruction information is received from the input device 2 (in the case of “NO” in step ST1216), and receives the operator's input operation (step ST1216). In the case of “YES” in ST1216), the event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown) and analyzes the input content of the operator based on the information received by the input receiving unit 11. (Step ST1217). The specific operation is the same as in step ST1210.

The event processing unit 12 is an instruction to return to the display of the three-dimensional trend graph as a result of analyzing the instruction content of the operator based on the instruction information received by the input receiving unit 11, that is, an instruction to cancel the provisional plane viewpoint. Is determined (step ST1218).
In the second embodiment, the operator switches to display of drawing data viewed from the front of the temporary planes 305 and 306 in step ST1215 and displays it on the display device 3, and then displays the three-dimensional trend graph again. That is, it is possible to return to the display as shown in FIG. Specifically, for example, the operator presses a “planar display end” button displayed on the display device 3 to display a three-dimensional trend graph, that is, give an instruction to return to a three-dimensional viewpoint. . The input device 2 accepts pressing of the “end flat display” button, and transmits information about the press of the “end flat display” button to the input receiving unit 11 as instruction information.

If it is determined in step ST1218 that the instruction is to cancel the provisional plane viewpoint (in the case of “YES” in step ST1218), the process returns to step ST1208.
Specifically, the data processing unit 13 causes the drawing control unit 144 to display an image based on the drawing data temporarily stored in step ST1212 on the display device 3.

If it is determined in step ST1218 that the instruction is not a temporary plane viewpoint release instruction (“NO” in step ST1218), the process returns to step ST1216.

In this example, the operator gives an instruction to return from the provisional plane viewpoint to the three-dimensional viewpoint by pressing the “finish planar display” button displayed on the display device 3, but this is an example. However, the operator may give an instruction to return from the provisional plane viewpoint to the three-dimensional viewpoint by other methods.
Here, when the operator gives an instruction to return from the temporary plane viewpoint to the three-dimensional viewpoint, the operator returns to the state where the three-dimensional graph area is extracted and displayed (see FIG. 4). However, the operator may return to the state before the 3D graph area is extracted (see FIG. 2) from the provisional plane viewpoint, or the operator may extract and display the 3D graph area. It may be possible to select either the state or the state before the three-dimensional graph area is extracted.

As described above, according to the second embodiment, in the trend graph displayed from the three-dimensional viewpoint (see FIG. 4), the trend graph lines of each series 302a overlap each other, that is, the data in the Z-axis direction is identified. Even if it is difficult, since it is possible to switch the trend graph to be displayed in the direction of the time axis from the position of the temporary plane 306 (see FIG. 13), the trend graph lines of each series 302a are displayed without overlapping each other. The identification efficiency of each series 302a is further improved.
In addition, by displaying the new values darker and the older values lighter in time series, it is possible to grasp the transition of the values of each series, that is, the change of values with time. This makes it easier to read the transition of the values than the graph lines displayed from a direction parallel to the Z axis or from a three-dimensional viewpoint, which are generated by compressing and displaying the graph lines of each series 302a as straight lines.

In the second embodiment, an instruction to switch to the provisional plane viewpoint using the input device 2 is given by the operator using the “Plane display from the plus side” button displayed on the display device 3 or “ Although the “planar display from the minus side” button is clicked with a mouse or the like, the method of instructing switching to the temporary plane viewpoint is not limited to this. For example, a method using means such as keyboard input, gesture input, or voice input may be used.
In the second embodiment, the 3D viewpoint and the provisional plane viewpoint are switched. However, the present invention is not limited to this, and any angle can be selected from the state in which the extracted 3D graph area is displayed in the 3D viewpoint. It can also be rotated and displayed. For example, the operator drags the extracted three-dimensional graph area 301a displayed on the display device 3 as shown in FIG. 4 with a mouse operation to rotate the display angle. At this time, the operator instructs which of the temporary planes 305 and 306 is to rotate the display angle. For example, the operator operates the mouse to the right in FIG. 4 to instruct to rotate the three-dimensional graph region 301a to an arbitrary angle on the plus side on the X axis. Further, for example, the operator performs an instruction to rotate the three-dimensional graph region 301a to an arbitrary angle on the negative side on the X axis by operating the mouse leftward in FIG.
Then, the display control device 1 receives instruction information indicating “drag on the three-dimensional graph region with a mouse operation” from the input device 2, and based on the received instruction information, a plan view viewed from the front direction of the provisional plane 306, Until then, drawing data for rotating and displaying the three-dimensional graph region 301a at an arbitrary angle on the plus side on the X axis is created, and an image based on the created drawing data is displayed on the display device 3. Alternatively, the display control apparatus 1 rotates the three-dimensional graph region 301a to an arbitrary angle on the minus side on the X axis until a plan view viewed from the front direction of the provisional plane 305 is obtained based on the received instruction information. Drawing data for display is created, and an image based on the created drawing data is displayed on the display device 3. When the display control device 1 rotates the three-dimensional graph region 301a to a position that is a plan view viewed from the front direction of the provisional plane 306 or a position that is a plan view viewed from the front direction of the provisional plane 305, the display control device 1 For the series 302a arranged in the dimensional graph region 301a, the drawing data is displayed with higher transparency as it goes in the past in the time series, that is, in the negative direction of the X axis. Therefore, the display color becomes lighter as the data of the older time in the trend graph.

In the second embodiment, the transparency of the series 302a increases as it goes in the past direction. However, even if the graph line of each series 302a of the trend graph is compressed and displayed as a straight line, The purpose is to be able to grasp the transition. Therefore, the same effect can be obtained even if the transmittance increases in the future direction.
In addition, when the data transition can be grasped without transmitting the series 302a, it may not be transmitted.

Embodiment 3 FIG.
In the first embodiment, the embodiment has been described in which a part of a three-dimensional graph region is extracted based on a plurality of provisional planes and a trend graph is displayed. In the third embodiment, one of the three-dimensional graph regions is displayed. The trend graph is displayed by extracting a part, and the extracted three-dimensional graph area is divided by a temporary plane, and the arranged trend graph is different for each of the plurality of three-dimensional graph areas divided by the temporary plane. An embodiment in which the display is performed with transparency will be described.

Since the configuration of the display control apparatus 1 according to the third embodiment of the present invention is the same as that described with reference to FIG. 1 in the first embodiment, redundant description is omitted. Further, the hardware configuration of the display control apparatus 1 according to the third embodiment of the present invention is the same as that described with reference to FIGS. 11A and 11B in the first embodiment, and thus a duplicate description is omitted.

The operation will be described.
The operation of the display control device 1 according to the third embodiment of the present invention is the trend graph displayed on the display device 3 described with reference to the operation of step ST506 in FIG. Since only the contents of the process of extracting a part of the same are different, redundant description of similar operations is omitted, and only operations different from those of the display control apparatus 1 according to the first embodiment are described.

FIG. 14 is a flowchart illustrating details of processing for extracting a part of the trend graph displayed on the display device 3 in the display control device 1 according to the third embodiment of the present invention.
The operations in steps ST1401 to ST1403, step ST1406 to step ST1408 in FIG. 14 are the same as the operations in steps ST801 to ST803 and steps ST806 to ST808 described with reference to FIG. The description which was made is abbreviate | omitted.

In the third embodiment, in step ST1404, similarly to step ST804 in FIG. 8, the drawing data in which the display position of the slider is changed is created, and at the same time, the plane drawing processing unit 143 moves to the vertical slider, that is, in the Y-axis direction. Create drawing data to display the moving slider. In step ST1405, similarly to step ST805 in FIG. 8, the drawing data in which the display position of the temporary plane is changed is created, and at the same time, the plane drawing processing unit 143 is parallel to the temporary plane movable in the vertical direction, that is, the XZ plane. Drawing data for displaying a temporary plane is created.
Therefore, here, for example, in step ST1408, as shown in FIG. 15, the display device 3 includes a three-dimensional graph region and data obtained by extracting a part of the trend graph arranged in the three-dimensional graph region. A provisional plane 404 parallel to the XZ plane and a vertical slider 403 serving as a pointer for moving the provisional plane 404 are displayed.
Here, for example, as an initial value, it is assumed that a variable that is a numerical value indicating the position of the slider 403 in the vertical direction, that is, a numerical value indicating the distance of the provisional plane 404 from the XZ plane is set to zero. That is, the provisional plane 404 is displayed at a position indicating the XZ plane, but the present invention is not limited to this, and the position at which the provisional plane 404 is displayed can be set as appropriate.

The input receiving unit 11 stands by until an input operation is made by the operator, that is, until the instruction information is received from the input device 2 (in the case of “NO” in step ST1409), and receives the operator's input operation (step ST1409). In the case of “YES” in ST1409), the event processing unit 12 refers to the processing content definition file 4 via a communication unit (not shown) and analyzes the input content of the operator based on the information received by the input receiving unit 11. (Step ST1410).
In the third embodiment, after the operator extracts and displays a part of the three-dimensional graph area for displaying the trend graph (see FIG. 15), for example, By dragging the mouse, the vertical slider 403 can be slid to specify the display position of the provisional plane 404 that divides the extracted three-dimensional graph area.
The input receiving unit 11 receives information indicating that the mouse has been dragged from the input device 2 as instruction information together with the position information of the designated provisional plane 404.
Then, the event processing unit 12 analyzes the input content of the operator based on the instruction information received by the input device 2. The specific operation is the same as step ST502 in FIG.

The event processing unit 12 is an instruction to “move the display position of the temporary plane according to the dragged distance and direction” as a result of analyzing the instruction content of the operator based on the instruction information received by the input receiving unit 11. Whether or not (step ST1411). Here, the event processing unit 12 determines whether or not the instruction is to move the display position of the provisional plane 404 in accordance with the drag of the slider 403 in the vertical direction. The event processing unit 12 may determine from the instruction information whether it is a drag of the slider 403 in the vertical direction.

If it is determined in step ST1411 that the display position of the provisional plane 404 is not an instruction to move the slider 403 in the vertical direction in accordance with the distance and direction of dragging the slider 403 (in the case of “NO” in step ST1411), the step of FIG. Return to ST501.

If it is determined in step ST1411 that the instruction is to move the display position of the provisional plane 404 in accordance with the distance and direction in which the slider 403 is dragged in the vertical direction ("YES" in step ST1411), the data processing unit 13 acquires information on the position of the designated slider 403, and sets the value of the Y coordinate indicating the position of the slider 403 as a variable based on the position (step ST1412). The data processing unit 13 outputs the set variable information to the three-dimensional graph drawing processing unit 14.

The plane drawing processing unit 143 creates drawing data in which the display position of the slider 403 is changed based on the variable set by the data processing unit 13 in step ST1412 (step ST1413).

Furthermore, the plane drawing processing unit 143 creates drawing data in which the display position of the provisional plane 404 is changed based on the variables set by the data processing unit 13 in step ST1412 (step ST1414). Specifically, the data processing unit 13 invalidates the display of the temporary plane 404 displayed before the current operation related to the movement of the slider 403 displayed on the display device 3 is performed. Erase.
Then, the plane drawing processing unit 143 creates drawing data for displaying the provisional plane 404 parallel to the XZ plane at a position based on the variable set by the data processing unit 13 in step ST1412.

Based on the variable set by the data processing unit 13 in step ST1412, the series drawing processing unit 141 determines whether there is a value smaller than the variable among the values of each series 302a of the trend graph in the current drawing data. It is determined whether there is a value smaller than the display position of the slider 403 among the values of each series 302a of the displayed trend graph (step ST1415).
In step ST1415, when there is no value smaller than the display position of the slider 403 among the values of each series 302a of the displayed trend graph, that is, all the values of each series 302a of the displayed trend graph are the slider 403. Is larger than the display position (in the case of “NO” in step ST1415), step ST1416 is skipped and the process proceeds to step ST1417.

In step ST1415, when there is a value smaller than the display position of the slider 403 among the values of each series 302a of the displayed trend graph (in the case of “YES” in step ST1415), the series drawing processing unit 141 displays the slider. For the value smaller than the display position 403, drawing data in which the drawing color is transmitted is created (step ST1416).

The drawing control unit 144 displays an image based on the drawing data created in steps ST1412 to ST1416 on the display device 3 (step ST1417), and returns to step ST501 in FIG.

FIG. 16 shows the third embodiment in which the extracted three-dimensional graph area 301a is divided by a provisional plane 404, and a value smaller than the display position of the provisional plane 404, that is, the display position of the slider 103 is transmitted through the trend graph series 302a. It is a figure which shows an example displayed on the display apparatus 3. FIG.
In FIG. 16, regarding the trend graph series 302a, only the value of the series 302c arranged in the three-dimensional graph area 301c below the value divided by the provisional plane 404 is displayed lightly. That is, the series 302c and 302d are displayed on the display device 3 with different transparency for each of the plurality of three- dimensional graph areas 301c and 301d divided by the provisional plane 404 that divides the three-dimensional graph area 301a.
Here, in FIG. 16, the values of the series 302c arranged in the three-dimensional graph region 301c below the value divided by the provisional plane 404 are displayed lightly. However, the present invention is not limited to this. The value of the series 302d arranged in the three-dimensional graph region 301d above the value delimited by 404 may be displayed lightly. The three-dimensional graph drawing processing unit 14 The series 302c and 302d can be displayed with different transparency for each of the dimensional graph regions 301c and 301d.

Here, after step ST1417, the process returns to step ST501 in FIG. 5. However, the present invention is not limited to this, and the process returns to step ST1409 so that an instruction for moving the temporary plane 404 can be received from the operator. Also good.

As described above, according to the third embodiment, the extracted 3D graph region 301a is further extracted on the provisional plane 404 based on the display position of the slider 403 in the vertical direction. By adjusting the drawing color of the trend graph series 302a to be displayed with the provisional plane 404 as a boundary, for example, only the values below the value divided by the provisional plane 404 of the series to be displayed are thinned. Display. As a result, compared to the case where the temporary plane 404 is not displayed or the case where the temporary plane 404 is simply displayed, the value taken by the trend graph series is a specific value, that is, the value of the display position of the slider 403. It is possible to easily grasp whether or not it has been exceeded and at what timing.

In the first to third embodiments described above, the input device 2 is provided with a mouse, a touch panel, a microphone, or the like, and the operator uses a slider using the input device 2 provided with the mouse, touch panel, microphone, or the like. Although the three-dimensional graph region to be extracted is designated by the operation, the method for designating the three-dimensional graph region to be extracted is not limited to this.
For example, the input device 2 may be a keyboard, and the operator may input numerical values and directions using the keyboard to specify the extraction range of the three-dimensional graph area, operate the touch panel, enter a gesture using a camera, Alternatively, a three-dimensional graph area to be extracted may be specified using a means such as voice input from a voice input device such as a microphone. As described above, the operator can appropriately specify the extraction range of the three-dimensional graph region to be extracted and the display angle of the three-dimensional graph region. In the processing content definition file 4, instruction information and specific instruction contents are defined in association with each other in accordance with the designation method by the operator.

In the above first to third embodiments, the display device 3 is a display such as a CRT or a liquid crystal. However, the display device 3 is not limited to a display that projects a three-dimensional coordinate space as a two-dimensional image, and the display device 3 is a three-dimensional display. A three-dimensional output device that outputs the coordinate space as it is may be used.

In the first to third embodiments, the three-dimensional graph is displayed as a trend graph and displayed as a continuous line graph. However, the present invention is not limited to this, and the three-dimensional graph is drawn in a three-dimensional coordinate space. It may be a bar graph or scatter chart.

In the first to third embodiments, the display directions of the provisional planes 105, 106, 205, 206, 305, and 306 are displayed in parallel to the YZ plane in accordance with each embodiment. However, the display directions of the provisional planes 105, 106, 205, 206, 305, and 306 may be displayed in parallel with any plane of the XY plane, the XZ plane, and the YZ plane in accordance with the characteristics of the display series. Good.
In the third embodiment, the display direction of the provisional plane 404 is displayed in parallel with the XZ plane. However, the display direction of the provisional plane 404 is not limited to this, and the provisional planes 105, 106, and 205 , 206, 305, and 306 can be set as appropriate.

In the first to third embodiments, the sliders 103, 104, 203, 204, 303, 304, and 403 for operating the temporary planes 105, 106, 205, 206, 305, 306, and 404 on the three-dimensional graph region are used. Is a specific input unit, and the operator slides the temporary planes 105, 106, 205, 206, 305, 306, 404 by operating the sliders 103, 104, 203, 204, 303, 304, 403. However, the present invention is not limited to this. For example, the operator directly drags the temporary planes 105, 106, 205, 206, 305, 306, and 404 with a pointing cursor to temporarily move the temporary planes 105, 106, 205, and 206. , 305, 306, 404 may be slid, or using gestures or keyboard Operate the temporary planes 105, 106, 205, 206, 305, 306, 404 by an operation method that does not have a specific input section, such as instructing to move the temporary planes 105, 106, 205, 206, 305, 306, 404. You may do.

In the first to third embodiments described above, the three-dimensional coordinate space displayed on the display device 3 can be displayed arbitrarily by the operator using the input device 2 such as dragging, direction key input, gesture input, and the like. It is good also as what can rotate to the viewpoint, ie, the angle of a X-axis, a Y-axis, and a Z-axis.
In the first to third embodiments described above, when creating drawing data for extracting and displaying a three-dimensional graph region and a series surrounded by two provisional planes, that is, a displayed three-dimensional graph region When creating drawing data for cutting out and displaying a three-dimensional graph area in an arbitrary range, the display control device 1 creates drawing data to be displayed in the foreground by a predetermined coordinate in the Z-axis direction. I tried to do it. However, the display control device 1 displays the drawing data for extracting and displaying the three-dimensional graph region and the series enclosed by the two temporary planes by shifting the predetermined coordinate in the Y-axis direction. Alternatively, drawing data for extracting and displaying in other directions may be created, and drawing data that is displayed away from the position displayed before extraction may be used. Anything can be created.
Further, when creating the drawing data to be extracted and displayed, the display control device 1 may use drawing data in which the color of the three-dimensional graph region and the series is changed, or the three-dimensional graph region and the series. The drawing data may be changed in scale.

In the first embodiment, the display control device 1 is configured as shown in FIG. 1, but the display control device 1 includes an input receiving unit 11 and a three-dimensional graph drawing processing unit 14. The effects as described above can be obtained.

Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

Since the display control device according to the present invention is configured to be able to extract an arbitrary section of the three-dimensional graph region, it can be applied to a display control device that displays a three-dimensional graph on the display device. .

1 display control device, 2 input device, 3 display device, 4 processing content definition file, 5 data storage file, 11 input reception unit, 12 event processing unit, 13 data processing unit, 14 3D graph drawing processing unit, 141 series drawing Processing unit 142 Coordinate system drawing processing unit 143 Plane drawing processing unit 144 Drawing control unit 1101 Processing circuit 1102 HDD 1103 Memory 1104 CPU 1105 Communication I / F device

Claims (8)

1. An input receiving unit that receives instruction information in which an arbitrary range of a three-dimensional graph area in which the three-dimensional graph is arranged is displayed on the display device;
   Based on the instruction information received by the input receiving unit, the three-dimensional graph region in the arbitrary range is extracted from the three-dimensional graph region, and the three-dimensional portion of the portion arranged in the extracted three-dimensional graph region A display control device comprising: a three-dimensional graph drawing processing unit that creates drawing data to be displayed on the display device together with a graph.
2. The three-dimensional graph drawing processing unit
   The drawing data is created so that when the three-dimensional graph region is extracted, the extracted three-dimensional graph region can be seen in front of the other three-dimensional graph regions. Display control device.
3. The display control apparatus according to claim 1, wherein the arbitrary range is specified by two temporary planes that divide the three-dimensional graph region.
4. The three-dimensional graph drawing processing unit
   The three-dimensional graph area to be displayed remaining after extracting the three-dimensional graph area in the arbitrary range and the portion of the three-dimensional graph arranged in the three-dimensional graph area are transmitted to the display device. The display control apparatus according to claim 1, wherein drawing data for display is created.
5. The input receiving unit receives instruction information in which a range of a 3D graph area extracted by the 3D graph drawing processing unit is changed;
   The three-dimensional graph drawing processing unit converts a three-dimensional graph region in which the range of the extracted three-dimensional graph region is changed based on instruction information in which the range of the extracted three-dimensional graph region is changed into the three-dimensional graph region The display control device according to claim 1, wherein drawing data to be displayed on the display device is created together with a three-dimensional graph of a portion arranged in the display device.
6. The input receiving unit receives instruction information for changing a display angle of the three-dimensional graph region extracted by the three-dimensional graph drawing processing unit;
   The three-dimensional graph drawing processing unit includes a three-dimensional graph region sandwiched between the two temporary planes and a three-dimensional graph region based on instruction information for changing a display angle of the extracted three-dimensional graph region. Drawing data for displaying on the display device a three-dimensional graph of the arranged portion as a plan view viewed from the front of one of the two provisional planes is created. 3. The display control device according to 3.
7. The three-dimensional graph is a trend graph representing data according to time transition,
   The three-dimensional graph drawing processing unit
   Drawing data to be displayed on the display device is created by changing the transparency of the three-dimensional graph of the portion arranged in the three-dimensional graph region sandwiched between the two temporary planes according to the time series. The display control apparatus according to claim 6.
8. The input receiving unit receives instruction information in which a provisional plane that divides the three-dimensional graph region extracted by the three-dimensional graph drawing processing unit is specified;
   The three-dimensional graph drawing processing unit is a drawing for causing the display device to display the three-dimensional graph with different transparency for each of a plurality of three-dimensional graph regions divided by a temporary plane that divides the three-dimensional graph region. The display control apparatus according to claim 1, wherein data is created.

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