JP6867883B2 - Spatial display device and spatial display method - Google Patents

Description

The present invention relates to a spatial display device and a spatial display method.

A system has been proposed in which when a computer displays a structure such as a plant, it is displayed as three-dimensional three-dimensional shape data. As a result, the plant can be viewed from a desired viewpoint position, and can be utilized for monitoring work and design work. On the other hand, by displaying not only the three-dimensional display data but also other data such as numerical data, it is possible to grasp detailed information of various operations performed in the plant.

Patent Document 1 describes that in a plant monitoring and control device, operating state data indicated by a measuring instrument is displayed as a two-dimensional symbol on three-dimensional display data of a structure viewed from a viewpoint.
Patent Document 2 describes that a two-dimensional image is generated from a predetermined viewpoint position of a three-dimensional model.
Patent Document 3 describes that the layout design of a plant is supported by using the equipment drawing symbol data of two-dimensional CAD (Computer-Aided Design) and the equipment model data of three-dimensional CAD.
Patent Document 4 describes that a three-dimensional model is arranged at a predetermined position in a three-dimensional space on a monitoring board display of a plant and converted into a two-dimensional coordinate system by a rendering process.
Patent Document 5 describes that a two-dimensional diagram from an arbitrary viewpoint is calculated and generated based on a 3D model with architectural design support.

Japanese Unexamined Patent Publication No. 2013-222258 Japanese Unexamined Patent Publication No. 2013-214944 JP-A-2010-257317 Japanese Unexamined Patent Publication No. 2007-330888 Japanese Unexamined Patent Publication No. 2005-301358

With the improvement of the performance of HMD (Head Mounted Display) and GPU (Graphics Processing Unit), virtual reality (VR) technology is gradually becoming widespread. The user wearing the HMD can get the experience as if the plant exists in front of him. Therefore, it is desired that not only the three-dimensional display data is displayed on the conventional flat display, but also the display method of being inside the plant in virtual space as VR is utilized for various operations of the plant.

The display of the first-person view in VR is closely linked to the head of the user wearing the HMD. For example, when the user turns to the left, the display content also changes to the one in which the camera's field of view faces to the left. It fluctuates in real time. Such a display device integrated with the user has the effect of enhancing the sense of presence, and at the same time, there are some parts that are difficult to see from the current field of view.

For example, a part far from the current camera position in the virtual space is displayed small on the screen, making it difficult to see. In addition, parts that exist at an angle that is far from the front of the camera are also distorted and displayed on the screen. However, when working in the plant, it is necessary to grasp not only the parts that are easy to see in front of you, but also the space as a whole.

Therefore, the main object of the present invention is to appropriately display a portion that is difficult to see from the current field of view when displaying the inside of the virtual space in three dimensions.

In order to solve the above problems, the spatial display device of the present invention has the following features.
The three-dimensional shape data displayed in the virtual space has identification information that serves as a search key defined for each component that is a component of the three-dimensional shape data.
The present invention, the three-dimensional shape data viewed from a given camera view and displays a virtual space, and a screen control unit also update the display contents of the virtual space in conjunction with the updating of the predetermined camera view,
Each of the first area in the virtual space having good visibility from the predetermined camera field of view and the second area in the virtual space other than the first area are divided and arranged in the virtual space. for parts, it possesses a display form of the components located in the first area, and the part display control unit to display form and the different forms of components located in the second region, and
The screen control unit searches for a component that matches the input search key from the three-dimensional shape data, and changes the predetermined camera field of view so that the component that is the search result can be visually recognized.
Other means will be described later.

According to the present invention, when the virtual space is displayed three-dimensionally, it is possible to appropriately display a portion that is difficult to see from the current field of view.

It is an external view of the space display system which concerns on one Embodiment of this invention. It is a block diagram of the space display device which concerns on one Embodiment of this invention. It is a figure explaining the detail of the design 3D model and the system diagram data which concerns on one Embodiment of this invention. It is a flowchart which shows the display process of the spatial display system which concerns on one Embodiment of this invention. It is a top view when the virtual space which concerns on one Embodiment of this invention is seen from overhead. It is a figure when the viewport of FIG. 5 concerning one Embodiment of this invention is explained in 3D space. It is a top view when the virtual space of the 1st plant which concerns on one Embodiment of this invention is seen from overhead. It is a screen view of the design 3D model when the virtual space of the 1st plant of FIG. 7 concerning one Embodiment of this invention is viewed three-dimensionally from an HMD. It is a screen view which replaced the design 3D model with the replacement 3D model with respect to the screen view of FIG. 8 concerning one Embodiment of this invention. This is an example in which the screen control unit according to the embodiment of the present invention stereoscopically displays the screen view of FIG. 9 on the HMD. It is a top view when the virtual space of the 2nd plant which concerns on one Embodiment of this invention is seen from overhead. It is a screen view of the design 3D model when the virtual space of the 2nd plant of FIG. 11 concerning one Embodiment of this invention is seen three-dimensionally from HMD. It is a screen view which replaced the design 3D model with the replacement 3D model with respect to the screen view of FIG. 12 concerning one Embodiment of this invention. It is a screen view when various operations performed by a user are reflected on the display screen with respect to the screen view of FIG. 13 which concerns on one Embodiment of this invention. This is an example of a search screen for plant parts according to an embodiment of the present invention. It is a live-action display example of the search screen of FIG. 15 which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external view of a spatial display system. The spatial display system is configured by connecting a keyboard 11, a mouse 12, a controller 13, an HMD 14, and a display device 15 as peripheral devices to the spatial display device 2, respectively.
The spatial display device 2 is configured as a computer having a CPU (Central Processing Unit), a memory, a storage means (storage unit) such as a hard disk, and a network interface.
In this computer, the CPU operates a control unit (control means) composed of each processing unit by executing a program (also called an application or an abbreviation for application) read in the memory.

The user wearing the HMD 14 on the head searches in the virtual space generated by the space display device 2 by using the controller 13 at hand. The display screen of the virtual space is displayed on the display device 15 and also displayed on the HMD 14 as a binocular stereoscopic image. The current camera viewpoint position in the virtual space can be moved by operating the controller 13 such as tilting an analog stick (not shown). Further, when the posture of the HMD 14 is changed by changing the direction of the user's face, the current camera viewing angle in the virtual space can be changed by reflecting the posture data.

Further, the user can input various input data such as character data to the spatial display device 2 by operating the keyboard 11 and the mouse 12 at hand. When the space display device 2 receives the input data specified by the specific component, for example, the spatial display device 2 reflects the input data in the display content by emphasizing the specific component in the virtual space being displayed.

In this way, the user can obtain an experience as if he / she searches in the virtual space by using various spatial display systems centered on the HMD14. Examples of application fields for such intuitive experiences include various plans for conducting various trainings (construction training, operation training, maintenance training, decommissioning training) for plant equipment formed in a virtual space. ..

FIG. 2 is a configuration diagram of the space display device 2.
The spatial display device 2 has various processing units (screen control unit 21, component replacement unit 22, connection emphasis unit 23), and a database 3 that manages data handled by the processing unit. In the database 3, the design 3D model 31, the replaced 3D model 32, the system diagram data 33, the connected 3D model 34, and the additional data 35 are stored in association with each other. Note that FIG. 2 shows arrows indicating the main correspondences among the correspondences between the data.

FIG. 3 is a diagram illustrating details of the design 3D model 31 and the system diagram data 33.
The design 3D model 31 is a data structure that manages the position and size of a three-dimensional shape arranged in a virtual space such as a plant for each part. FIG. 3 shows an example in which the pump shape F02 and the valve shape F04 as plant equipment are connected by the pipe shapes F01, F03, and F05.
The system diagram data 33 is a plan view in which the three-dimensional shape of the plant or the like shown by the design 3D model 31 is simplified by paying attention to the functional connection relationship. For the system diagram data 33, a standard drawing such as P & ID (Process and Instrumentation Diagram) may be used. In FIG. 3, the pump symbol P001 indicating the pump shape F02, the valve symbol V001 indicating the valve shape F04, the piping line L001-1 indicating the piping shape F01, the piping line L001-2 indicating the piping shape F03, and the piping shape. The piping line L001-3 indicating F05 is described.
In this way, the ID of each three-dimensional shape of the design 3D model 31 and the ID of each symbol (including the piping line) of the system diagram data 33 are associated with each other. This association is prepared by an administrator or the like in advance.

It should be noted that the system diagram data 33 may be simplified from the actual layout of the design 3D model 31 because it is sufficient to express the type of equipment that realizes the plant function and the functional connection relationship between the equipment. There are many. For example, the reason why the pipe line L001-1 is a straight line and the corresponding pipe shape F01 is also illustrated as a straight line type pipe in FIG. 3 is for the sake of clarity. On the other hand, the shapes of pipes actually deployed in the plant are various so that they can be curved many times and directed in various directions.

Returning to FIG. 2, the component replacement unit 22 replaces the replaced 3D model 32 with the symbols used in the system diagram data 33 for the parts of the design 3D model 31 that are difficult to see from the current user's camera position and orientation. Generate.
Further, the connection emphasizing unit 23 creates a post-connection 3D model 34 that emphasizes a series of connected three-dimensional shapes in the design 3D model 31 based on the functional connection relationship defined in the system diagram data 33. To do.
Further, the additional data 35 includes job type information, work skill information, work history information, and the like about the user who is a plant worker. These additional data 35 are referred to in order to personalize (specialize) the display contents of the virtual space for each plant worker.

Then, the screen control unit 21 not only displays the design 3D model 31 showing the three-dimensional shape of the plant as it is as a virtual space, but also displays the 3D model 32 after replacement, the 3D model 34 after connection, and the design 3D model 31 with additional data 35. Display a virtual space that has undergone various data processing such as. As a result, the plant worker can obtain not only the experience of simply exploring the plant space but also the experience of actually performing the work inside the plant.

FIG. 4 is a flowchart showing the display processing of the spatial display system.
As S11, the screen control unit 21 accepts the input of data indicating the work content via the character input operation of the keyboard 11 and the list selection operation of the mouse 12. The work content indicates, for example, information on a work place indicating which area or room in which the work is performed in the design 3D model 31, or which plant worker in the additional data 35 performs the work. It is the information of the worker.
The work place information (room to be inspected, etc.) input here is used to extract the three-dimensional object included in the work place from the design 3D model 31 as a display target.
As S12, the screen control unit 21 receives the input of the camera field of view data in the virtual space at the work place received in S11. As described with reference to FIG. 1, the operation of the controller 13 corresponds to the movement of the camera viewpoint position, the operation of the HMD 14 corresponds to the change of the camera field of view angle, and the camera field of view data is defined by a combination of both of these data.

As S21, the component replacement unit 22 determines whether or not there is a component that is difficult to see for each component in the virtual space as seen from the camera field of view data of S12 at the work location of S11. If Yes in S21, proceed to S23, and if No, proceed to S22.
As S22, the screen control unit 21 displays the design 3D model 31 in the virtual space as seen from the camera field of view data of S12 at the work place of S11 on the HMD 14 and the display device 15. This allows the worker to feel as if he or she is standing inside the plant.

As S23, the parts replacement unit 22 replaces the hard-to-see parts with the replaced 3D model 32 in which the three-dimensional shape is replaced with a simple display such as a symbol, a piping line, or character data such as "pump" as illustrated in FIG. create. For easy-to-see parts, it is not necessary to change (replace) the three-dimensional shape indicated by polygons or the like.
The created replacement 3D model 32 is displayed in place of the design 3D model 31 of S22. As a result, the operator can easily grasp parts that are difficult to see in the current camera field of view.

As S31, the connection emphasizing unit 23 determines whether or not to emphasize the functional connection relationship with respect to the design 3D model 31 of S22 or the replaced 3D model 32 of S23 according to the work content received in S11. For example, when a certain part being displayed is selected by the mouse 12, it is necessary to emphasize other parts having a functional connection relationship with the selected part. If Yes in S31, the process proceeds to S32, and if No, the process returns to S12.
As S32, the connection emphasizing unit 23 creates a post-connection 3D model 34 emphasizing a series of connected three-dimensional shapes based on the functional connection relationship defined in the system diagram data 33.
The created post-connection 3D model 34 is overwritten and displayed on the design 3D model 31 of S22 or the post-replacement 3D model 32 of S23. As a result, the worker can distinguish the parts that are useful when actually performing the work inside the plant from the parts that are not related to the work. Then, the process is returned to S12. By returning to S12 and performing the loop processing in this way, the camera field of view data is changed at any time by the user's operation, and the display content is updated in real time to match the changed camera field of view data.

The history data of each process described with reference to FIG. 4 may be stored in the additional data 35 as a time-series log file. As a result, each operation in the virtual space when the HMD14 is attached, such as "I have detoured to a passage unrelated to the work, and it took time to close a certain valve", is given to the user after removing the HMD14. It can be reflected and encouraged to improve work.

FIG. 5 is a plan view of the virtual space when viewed from above. First, the camera viewing angle will be described.
The user wearing the HMD 14 can clearly see the front direction indicated by the arrow LC. The range from arrow LLI to arrow LRI centered on arrow LC is called a viewport (VP in FIG. 6) and is a relatively easy-to-see field of view. On the other hand, as the outside of the viewport, the left outer range ALO of the arrow LLO to the arrow LLI and the right outer range ARO of the arrow LRI to the arrow LRO are displayed on the screen, but they are far from the front and the part shape is large. The field of view is difficult to see, such as being distorted.

Further, the visibility of the component is affected not only by the viewing angle of the camera but also by the distance from the user position (camera position) to the component in the virtual space. Even inside the viewport, parts located in regions farther than the reference distance D (ALF, ARF) appear small in perspective, making it difficult to see the shape of the parts. The reference distance D can be changed by the user at any time.
Therefore, the first region with good visibility from the camera field of view is the region (ALN, ARN) inside the viewport and closer than the reference distance D. On the other hand, if the region other than the first region is the second region, the second region is one or both of the outer region (ALO, ARO) and the long distance region (ALF, ARF) of the viewport.
That is, the hard-to-see part of S21 in FIG. 4 is a part located in the second region.

FIG. 6 is a diagram showing the viewport of FIG. 5 in 3D space.
The viewport VP is defined as a plane centered on the arrow LC and around the arrow LLI to the boundary position of the arrow LRI. Then, the space of the quadrangular pyramid (ALN, ARN in FIG. 5) having the plane of the viewport VP as the bottom surface and the eye position as the apex is the range in which the parts can be easily seen.

Hereinafter, various processes for displaying a specific example of the first plant will be described with reference to FIGS. 7 to 10.
FIG. 7 is a plan view of the virtual space of the first plant when viewed from above. The following parts are arranged in this first plant.
・ Equipment 106
-Valves 102, 108
-Piping 101, 103, 104, 105, 107, 109
Then, it is assumed that the worker stands in front of the valve 102 and faces the device 106 to look at the virtual space.

FIG. 8 is a screen view of the design 3D model 31 when the virtual space of the first plant of FIG. 7 is viewed three-dimensionally from the HMD 14. The parts 101 to 109 shown in FIG. 7 are arranged three-dimensionally. Here, the bulb 102 on the front side is displayed larger and easier to see because the distance from the camera position is closer than the reference distance D. On the other hand, the bulb 108 on the back side is displayed small and difficult to see because the distance from the camera position is farther than the reference distance D and is located outside the viewport VP. Specifically, the handle 108a of the valve 108 is hidden behind the pipe 107 in front of the handle 108a, and the user cannot recognize that the valve 108 itself.

FIG. 9 is a screen view in which the component replacement unit 22 replaces the design 3D model 31 with the replacement 3D model 32 with respect to the screen view of FIG. That is, FIG. 9 is a screen view displayed in S23 described above.
The component replacement unit 22 replaces the following components located outside the viewport VP among the components of FIG. 8 with symbols and piping lines of the system diagram data 33 as hard-to-see components.
・ Valve 108x
-Piping 101x, 103x, 105x, 107x, 109x
On the other hand, the remaining parts are left as the three-dimensional shape as shown in FIG. This makes it possible to improve the visibility of an object that is difficult to see.

FIG. 10 is an example in which the screen control unit 21 stereoscopically displays the screen view of FIG. 9 on the HMD 14. The screen control unit 21 forms a stereoscopic view of plant parts by using parallax by shifting the fields of view of the left eye image 14L and the right eye image 14R, respectively.

Hereinafter, various processes for displaying a specific example of the second plant will be described with reference to FIGS. 11 to 14.
FIG. 11 is a plan view of the virtual space of the second plant when viewed from above. The following parts are arranged in this second plant.
・ Tanks 203 and 204
-Piping 201, 202, 205, 206, 207
Then, it is assumed that the worker stands in front of the pipe 202 and faces the tanks 203 and 204 to look at the virtual space.

FIG. 12 is a screen view of the design 3D model 31 when the virtual space of the second plant of FIG. 11 is viewed three-dimensionally from the HMD 14. Each component 201 to 207 shown in FIG. 11 is three-dimensionally arranged. Further, a valve 206a is provided in the middle of the pipe 206, and a valve 207a is provided in the middle of the pipe 207.

FIG. 13 is a screen view in which the component replacement unit 22 replaces the design 3D model 31 with the replacement 3D model 32 with respect to the screen view of FIG. That is, FIG. 13 is a screen view displayed in S23 described above.
Here, the component replacement unit 22 replaces the portion of the pipes 206 and 207 located outside the viewport VP with the pipe lines 206x and 207x. Further, since the valves 206a and 207a are also located outside the viewport VP, the component replacement portion 22 is replaced with the valve symbols 206y and 207y.

Further, according to the additional data 35, it is assumed that the measurement temperature of the valve 207a is high. Therefore, in order to reflect the additional data 35 on the display screen, the component replacement unit 22 calls the user's attention by, for example, adding the high temperature caution display 207z.
The screen control unit 21 reads not only the high temperature caution display 207z but also spatial distribution information such as the temperature, dose, and volume of dangerous parts and the surroundings from the additional data 35, and reads high temperature / high pressure / high dose, etc. As cautionary information, it may be superimposed and displayed in the virtual space of the design 3D model 31. This makes it possible to visualize the spatial range that requires attention in the workplace.

FIG. 14 is a screen view when various operations performed by the user are reflected on the display screen with respect to the screen view of FIG. 13.
First, it is assumed that the user who sees the high temperature caution display 207z in FIG. 13 clicks the target valve symbol 207y with the mouse pointer 210. In that case, the connection emphasizing unit 23 acquires the surrounding parts having a functional connection relationship with the parts at the starting point from the system diagram data 33, starting from the clicked valve symbol 207y. Here, it is assumed that in addition to the pipe 207 to which the valve 207a is mounted, the tanks 203 and 204 to which the pipe 207 is connected have been acquired.
Then, as a result of emphasizing the acquired parts, the connection emphasizing unit 23 connects the clicked valve symbol 207y, the emphasizing piping lines 207xp and 207yp, the emphasizing piping 207p, and the emphasizing tanks 203p and 204p, and then a 3D model. It is displayed as 34. As a result, the user can easily grasp the connection parts that require attention in the inspection target or the like. The inspection work here is, for example, a work of paying attention to a fluid flowing through a certain pipe, tracing from upstream to downstream in order, and confirming whether or not there is a leak in the fluid.

Further, the connection highlighting unit 23 not only emphasizes the component set having a functional connection relationship, but may also highlight the component set to be a series of work targets regardless of the presence or absence of the functional connection relationship. This makes it easier to distinguish the set of parts to be worked from other parts, such as inspection work targeting only valves scattered in various places in the plant.
Further, the connection emphasizing unit 23 may select all the parts to be worked on in a closed space such as a room as a set of parts to be emphasized. This makes it possible to grasp parts that are inconspicuous at the edges of the room.

In addition, the spatial display system not only displays the parts of the plant, but also gives the user the experience of operating the parts of the plant as if they were operating at the site. For example, by inputting an operation of turning the analog stick of the controller 13 to the clicked valve symbol 207y, the valve opening / closing operation can be performed and the result can be reflected on the screen (reference numeral 207q). In this way, by selecting the parts to be operated and then operating them, it is possible to efficiently check or change the state of the plant from a remote location.

FIG. 15 is an example of a search screen for plant parts. The display device 15 is provided with a text field 301 that accepts character input from the keyboard 11 and a search button 302 that accepts clicks of the mouse 12. The user inputs the ID, name, etc. of the device, piping component, etc. to be searched in the text field 301, and then clicks the search button 302.
The screen control unit 21 searches the design 3D model 31 for the search key input in the text field 301, focuses the camera field of view on the corresponding component 303, and highlights the outline of the component 303. As a result, the user can immediately refer to the desired component 303 without having to search around in the virtual space.

FIG. 16 is an example of a live-action display of the search screen of FIG. In the design 3D model 31, the polygon data in the virtual space and the data taken in the real space (live-action space) are associated with each other in advance. Then, when the live-action data of the component 303 corresponding to the search result of FIG. 15 exists, the screen control unit 21 may display the live-action data instead of the polygon data in the virtual space. Further, the screen control unit 21 may display the live-action data as the design 3D model 31 not only in the search result but also in the area where the live-action data exists in the virtual space.
Further, the component replacement unit 22 may create a replacement 3D model 32 that overwrites the symbol data 304x and 305x for the component determined to be difficult to see in S21.
As a result, the user can experience the atmosphere when working in the field more concretely by referring to the live-action data having a more realistic feeling than the polygon data.

In the present embodiment described above, as shown in FIG. 5, a region that is easy to see from the current camera field of view and a region that is difficult to see are defined in advance. Then, the component replacement unit 22 replaces the component in the difficult-to-see region of the design 3D model 31 with a simple figure such as a symbol of the system diagram data 33 and displays it as the 3D model 32 after replacement.
This makes it possible for the user to appropriately grasp what exists even in an area that is difficult to see from the current field of view, while retaining the three-dimensional shape of the polygon in the area that is easy to see. In addition, since the drawing cost of a simple figure is low, the quality of the VR experience can be improved by drawing many parts on one screen and improving the number of drawing times (frame rate). ..

Further, in the present embodiment, as shown in FIG. 14, focusing on a certain component, the connection highlighting unit 23 creates a post-connection 3D model 34 for highlighting the surrounding components having a connection relationship with the component. To do. This connection relationship is a functional connection relationship defined in advance in the system diagram data 33. As a result, even in a situation where multiple pipes scan the space in a complicated manner and it is difficult to recognize three-dimensionally, the operator can appropriately highlight the parts to be worked on and the parts to be watched. Can be read.

Since the data processing of the design 3D model 31 by the component replacement unit 22 and the connection emphasis unit 23 is calculated by the spatial display device 2 as information processing, it is not necessary to outsource the data processing work to an expert.
From the above, it is possible to obtain a VR experience that is useful for performing various tasks inside the virtual space, not simply a VR experience that walks inside the virtual space. As a result, it is expected that the user who has obtained sufficient prior experience with the spatial display system can smoothly carry out each process of actual plant construction, operation, maintenance, and decommissioning thereafter.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations.
Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment.
Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration. Further, each of the above configurations, functions, processing units, processing means and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit.
Further, each of the above configurations, functions, and the like may be realized by software by the processor interpreting and executing a program that realizes each function.

Information such as programs, tables, and files that realize each function can be stored in memory, hard disks, recording devices such as SSDs (Solid State Drives), IC (Integrated Circuit) cards, SD cards, DVDs (Digital Versatile Discs), etc. Can be placed on the recording medium of.
In addition, the control lines and information lines indicate those that are considered necessary for explanation, and do not necessarily indicate all the control lines and information lines in the product. In practice, it can be considered that almost all configurations are interconnected.
Further, the communication means for connecting each device is not limited to the wireless LAN, and may be changed to a wired LAN or other communication means.

2 Spatial display device 11 Keyboard 12 Mouse 13 Controller 14 HMD
15 Display device 21 Screen control unit 22 Parts replacement unit (Parts display control unit)
23 Connection emphasis section (connection display control section)
3 Database 31 Design 3D model 32 Replaced 3D model 33 System diagram data 34 After connection 3D model 35 Additional data

Claims (7)

The three-dimensional shape data displayed in the virtual space has identification information that serves as a search key defined for each component that is a component of the three-dimensional shape data.
The three-dimensional shape data viewed from a given camera view and displays a virtual space, and a screen control unit also update the display contents of the virtual space in conjunction with the updating of the predetermined camera view,
Each of the first area in the virtual space having good visibility from the predetermined camera field of view and the second area in the virtual space other than the first area are divided and arranged in the virtual space. for parts, it possesses a display form of the components located in the first area, and the part display control unit to display form and the different forms of components located in the second region, and
The screen control unit searches for a component that matches the input search key from the three-dimensional shape data, and changes the predetermined camera field of view so that the component that is the search result can be visually recognized. apparatus. The component display control unit defines a region in which the distance from the camera position, which is the starting point of the predetermined camera field of view, is shorter than the predetermined distance as the first region, and the region in the virtual space where the distance is longer than the predetermined distance is the first region. The spatial display device according to claim 1, wherein the spatial display device has two regions. The component display control unit forms a viewport in which the direction of the camera in the predetermined camera field of view is within a range of a predetermined angle from the front direction, and the range of the viewport is defined as the first region of the viewport. The spatial display device according to claim 1, wherein the area outside the range is the second area. The screen control unit is any of claims 1 to 3, wherein when a component located in the virtual space is selected, the operation content for the selected component is reflected in the display content of the virtual space. The spatial display device according to item 1. The method according to any one of claims 1 to 3, wherein the screen control unit displays spatial distribution information of elements existing in the virtual space as additional data to be displayed in the virtual space. Spatial display device. The three-dimensional shape data displayed in the virtual space has a connection relationship with other parts defined for each component that is a component thereof.
The space display device further includes a connection display control unit that highlights, in addition to the predetermined component, another set of components having a connection relationship with the predetermined component when a predetermined component is selected. The spatial display device according to any one of items 1 to 3. The three-dimensional shape data displayed in the virtual space has identification information that serves as a search key defined for each component that is a component of the three-dimensional shape data.
The spatial display device has a screen control unit and a component display control unit.
The screen control unit, the three-dimensional shape data viewed from a given camera view and displays a virtual space, also updates the display contents of the virtual space in conjunction with the updating of the predetermined camera view,
The component display control unit is divided into a first region in the virtual space that is easily visible from the predetermined camera field of view and a second region in the virtual space that is a region other than the first region. For each component arranged in the virtual space, the display form of the component located in the first area and the display form of the component located in the second area are different .
The screen control unit searches for a component that matches the input search key from the three-dimensional shape data, and changes the predetermined camera field of view so that the component that is the search result can be visually recognized. Method.

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