KR102473980B1 - Method for implementing walking path network in virtual reality, server for providing virtual reality and computer program for the same - Google Patents

Abstract

The present invention relates to a method for implementing a walking path network in virtual reality, a virtual reality server, and a computer program therefor. According to an embodiment of the present invention, disclosed are the method for implementing a walking path network in virtual reality, the virtual reality server, and the computer program therefor, configured to provide a walking path network capable of continuous walking by connecting an outdoor environment based on terrain information and an indoor environment based on feature information in a three-dimensional coordinate space implemented in virtual reality. The method for implementing a walking path network in virtual reality comprises steps of: setting a terrain area lattice composed of terrain area nodes and terrain area links based on the terrain information; setting a feature area lattice composed of feature area nodes and feature area links based on the feature information; and setting a walking path network capable of continuous walking in a virtual reality space based on the terrain area node, the terrain area link, the feature area node, and the feature area link.

Description

Method for implementing walking path network in virtual reality, server for providing virtual reality and computer program for the same}

The present invention relates to a method for implementing a walking path network in virtual reality, a virtual reality server, and a computer program therefor, and relates to an outdoor environment based on topographic information and an indoor environment based on feature information in a three-dimensional coordinate space implemented in virtual reality. The present invention relates to a method for implementing a walking path network in virtual reality configured to provide a walking path network capable of continuous walking by connecting to a virtual reality server and a computer program for the same.

A specific environment or situation created by artificial technology using a computer, similar to reality but not real, or the technology itself is called virtual reality.

In particular, recently, among virtual reality technologies, the use of digital twin technology, which implements machines, equipment, and objects in the real world into a virtual world in a computer, is spreading.

In order to implement the walking function of an avatar in a virtual reality space such as a digital twin, it is necessary to set up a walking path network that defines a possible walking path of the avatar based on topographic information and feature information.

As an example of prior art related to a walking path, not a digital twin technology, Korean Registered Patent No. 10-1262227 (registered on May 2, 2013) relates to a pedestrian path guidance method and device, which is a conventional T-shape at an intersection. Instead of the path guidance method of , a triangular node is configured to provide guidance similar to a pedestrian's walking path.

As another example of prior art, Korean Registered Patent No. 10-1105808 (registered on January 6, 2012) relates to navigation of a walking path using a single road system, and includes walking movement such as roads, sidewalks, crosswalks, underground pedestrian walkways, overpasses, etc. The traffic characteristics of these possible traffic facilities are realized with a simpler data structure using a single road system, and based on this, a configuration capable of calculating and providing a quick and accurate walking route and providing users is proposed by reducing hardware resources.

However, these conventional technologies have focused on providing a walking path in an outdoor environment, and have limitations in providing a walking path that seamlessly connects the outdoor environment and the indoor environment.

Republic of Korea Registered Patent No. 10-1262227 (registered on May 02, 2013) Korean Registered Patent No. 10-1105808 (registered on January 6, 2012)

The present invention has been devised in view of the above problems, and provides a walking path network capable of continuous walking by connecting an outdoor environment based on topographic information and an indoor environment based on feature information in a three-dimensional coordinate space implemented in virtual reality. An object of the present invention is to provide a method for implementing a walking path network in virtual reality, a virtual reality server, and a computer program therefor.

According to one aspect of the present invention in consideration of the above object, a walking path network implementation method executed in a virtual reality server that implements virtual reality in a three-dimensional coordinate space based on terrain information and feature information, 1) based on terrain information establishing a terrain area lattice composed of terrain area nodes and terrain area links; 2) setting a feature area lattice composed of feature area nodes and feature area links based on feature information - the feature is an artificial feature having an area where a person can walk, and the feature area nodes and feature area links correspond to the topography Established based on area nodes and terrain area links; and 3) setting a walking path network capable of continuous walking in virtual reality space based on the terrain area nodes, terrain area links, feature area nodes, and feature area links. A network implementation method is disclosed.

Preferably, the terrain area lattice generates a terrain foundation lattice in which a plurality of terrain foundation nodes are arranged according to a preset condition and adjacent terrain foundation nodes are connected to each other by terrain foundation links; It is created by giving a height value to the terrain foundation node.

Preferably, the digital elevation model includes an elevation grid to which elevation values of terrain are assigned for each unit grid, the terrain foundation grid is overlapped with the elevation grid, and each terrain foundation node is overlapped with a location The terrain region lattice is created by assigning the elevation value of the unit grid as the height value of the corresponding terrain foundation node.

Preferably, the feature region lattice is set in a form in which a plurality of feature region nodes are arranged in each feature region according to a preset condition and adjacent feature region nodes are connected to each other by feature region links.

Preferably, the feature area node overlaps with the terrain area node or is set to overlap with a point of the terrain area link.

Preferably, the feature area grid has a different grid size from the feature area grid.

Preferably, in the present invention, a feature boundary line defining an outer wall of the feature is set, the feature region node is disposed inside the feature boundary line, and the feature region lattice is formed only through a passable boundary section in which walking is possible among the feature boundary lines. They are interconnected to a grid of terrain areas outside the feature boundaries.

Preferably, the feature is a building including n floors, and the feature area lattice and the feature area lattice are interconnected on the first floor of the building.

Preferably, for each feature, the feature area lattice is set by default to have a smaller lattice size than the terrain area lattice, and for each feature for a preset period, the number of entrances and exits of avatars entering and exiting the inside of the feature boundary is accumulated. For a feature whose calculated cumulative number of entrances and exits of the avatar is greater than or equal to a preset condition, the size of the feature region lattice is reduced and changed to be the same as the size of the feature region lattice for a preset peripheral area outside the feature boundary.

Preferably, in the present invention, a feature boundary line defining an outer wall of a feature is set, a feature dividing line defining an inner wall of the feature is set inside the feature boundary line, and the feature area node is disposed inside the feature boundary line, The feature region lattice is mutually linked with another feature region lattice only through a passable section in which walking is possible among the feature dividing lines.

Preferably, the feature is a building including n floors, and in an area inside the building where an elevator is installed, a feature area node on an upper floor and a feature area node on a lower floor are mutually linked through up-and-down links.

Preferably, the feature is a building including n floors, and in an area inside the building where stairs are installed, a feature area node of an upper floor and a feature area node of a lower floor are linked to each other through an inclined feature area link having a vertical inclination. , the inclining feature area link extends with a downward inclination from the upper layer feature area node and is managed as a component of the upper layer feature area grid, and extends with an upward inclination from the lower layer feature area node, Upward sloped feature area links managed as components of the feature area grid of the lower layer are mutually linked in such a manner that nodes are merged at mid-heights between the upper layer and the lower layer.

Preferably, the merging of the nodes is performed by merging a node having the lowest height of an upper-layer downward-sloping feature area link and a node having the highest height of an upward-sloping feature area link of a lower layer into one node.

According to another aspect of the present invention, a memory for storing one or more instructions; and a processor that executes the one or more instructions stored in the memory, wherein the processor implements virtual reality in a 3D coordinate space based on topographical information and feature information, wherein the topographical area nodes and topographical features are configured based on the topographical information. A feature area lattice composed of area links is set, and a feature area lattice composed of feature area nodes and feature area links is set based on feature information, wherein the feature is an artificial feature having an area where a person can walk, and the feature area A node and a feature area link are established based on the terrain area node and the feature area link - walking capable of continuous walking in the virtual reality space based on the terrain area node, the terrain area link, the feature area node, and the feature area link. A virtual reality server characterized by setting a route network is disclosed.

According to another aspect of the present invention, a computer program stored in a computer readable medium to execute a walking path network implementation method in a virtual reality server that implements virtual reality in a three-dimensional coordinate space based on topographic information and feature information, The method for implementing a walking path network may include setting a geographic area lattice composed of geographic area nodes and geographic area links based on geographic information; Setting a feature area lattice composed of feature area nodes and feature area links based on feature information - the feature is an artificial feature having an area where a person can walk, and the feature area nodes and feature area links are the feature area nodes Established based on the terrain area link with -; and setting a walking path network capable of continuous walking in a virtual reality space based on the terrain area nodes, terrain area links, feature area nodes, and feature area links. .

As described above, the present invention provides a walking path network capable of continuous walking by connecting an outdoor environment based on topographical information and an indoor environment based on feature information in a three-dimensional coordinate space implemented in virtual reality.

1 is an overall connection configuration diagram of a virtual reality server according to an embodiment of the present invention.
2 is a configuration diagram of a virtual reality server according to an embodiment of the present invention.
3 is a configuration diagram from a hardware point of view of a virtual reality server according to an embodiment of the present invention.
4 to 11 are schematic diagrams for explaining a method of implementing a walking path network in virtual reality according to an embodiment of the present invention.

The present invention may be embodied in other various forms without departing from its technical spirit or essential characteristics. Therefore, the embodiments of the present invention are mere examples in all respects and should not be construed in a limited manner.

The terms first, second, etc. are used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in the middle.

Singular expressions used in this application include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" or "have" are intended to express that the components described in the specification or a combination thereof exist, but the possibility that other components or features may exist or be added. It is not precluded.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the entire connection configuration of a virtual reality server according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a virtual reality server according to an embodiment of the present invention, and FIG. 3 is a diagram of a virtual reality server according to an embodiment of the present invention. It is a configuration diagram from the hardware point of view.

The commonly used wayfinding function of navigation can be performed only when special information (node links) is established to find a way on a map that abstracts a 3D world into 2D.

A node indicates a point where a change in speed occurs when a moving object (eg, vehicle) moves on a road. A city end point, tunnel start end point, administrative boundary, IC/JC, etc. can be a node.

A link means a node that is a speed change occurrence point and a line connecting the nodes. For example, in the case of a vehicle, it may be a road, a bridge, an overpass, an underpass, or a tunnel.

In this embodiment, with a concept similar to the node link of vehicle navigation, information on all places where people can walk on foot in a virtual reality environment such as a digital twin is expressed as a 3D node link and set as a walking path network. Avatar walking in virtual reality may be performed based on a terrain area node, a terrain area link, a feature area node, and a feature area link constituting a walking path network.

The method of implementing the walking path network (N) of this embodiment is executed in the virtual reality server 100 that implements virtual reality in a three-dimensional coordinate space based on terrain information and geographic information.

Topographic information (geographical information) consists of spatial data and attribute data. Spatial data includes the type, location, size, and spatial phase relationship with other terrain elements, and attribute data includes quantitative data including mathematical meaning as well as map names, cycles, Includes qualitative data necessary for describing the object, such as labels. For example, topographical information can be obtained using 3D spatial information provided by the National Geographic Information Institute under the Ministry of Land, Infrastructure and Transport.

Features include natural or artificial facilities such as rivers, valleys, reservoirs, roads, railroads, houses, roads, and bridges. Features generally appear as planimetric features on topographic maps.

Information about the size, location, direction, etc. of a feature can be obtained through geographic information.

When the feature is a building, indoor spatial information may be generated by extracting the shape of the indoor structure and brief attribute information from BIM (Building Information Modeling, 3D Design Information) information for the design of the building.

In the following description, feature information is understood to include information about the size, location, direction, etc., and indoor spatial information of features.

In particular, the feature on which the walking path network of this embodiment is set is an artificial feature having an area where people can walk, and for example, a building having one or more floors or an artificial facility (eg, an underpass, a subway station, an overpass, etc.) can

Preferably, the virtual reality of the present embodiment may be based on digital twin technology in which terrain and features of the real world are implemented in a virtual world in a computer, but are not necessarily limited thereto.

The virtual reality server 100 of this embodiment interworks with the user client 200 and the manager client 300 through the network 1 .

The user client 200 is a client of a user who accesses the virtual reality server 100 through a network 1 such as the Internet or an intranet and uses various virtual reality-based services (eg, walking simulation, etc.). The user may be a user registered in the virtual reality server 100 through a normal user member registration process, but is not limited thereto. In the terrain and feature environment constituting virtual reality, the user's avatar can walk by the user's manipulation input or a preset algorithm, and the avatar's walking can be performed on a walking path network set in the 3D coordinate space of virtual reality.

The manager client 300 is a manager client that accesses the virtual reality server 100 through a network 1 such as the Internet or an intranet and executes data management and user registration management to implement a virtual reality environment.

From a functional point of view, the virtual reality server 100 of this embodiment implements virtual reality in a three-dimensional coordinate space based on topographic information and feature information and visually provides it on the screen of the user client 200 or manager client 300 A virtual reality implementation module 102, a walking path implementation module 104 that sets and provides a walking path network in which an avatar can walk based on the walking path network implementation method of the present embodiment, and an avatar in a virtual reality space based on the walking path network. It includes a walking simulation implementation module 106 that executes a walking simulation process, and an operating module 108 that provides overall management functions of the virtual reality server 100, such as member registration, various member management modes, and manager mode.

For example, some of the functional modules may be distributed and implemented in the form of a separate server that works with the virtual reality server 100 over a network.

In addition, the virtual reality server 100 of the present embodiment includes a geographic information DB 112 for storing and renewing and managing geographic information for realizing virtual reality and a geographic information DB for storing and updating and managing geographic information for realizing virtual reality. (114), a walking path information DB (116) for storing and updating information on the walking path network set based on the walking path network implementation method of the present embodiment, and a user information DB (118) for storing and updating and managing user information. includes

For example, the geographic information DB 112 and/or the geographic information DB 114 provide all or part of information from a separate geographic information providing server (eg, National Geographic Information Institute server) interworking with the virtual reality server 100 over a network. may receive

Among the feature information, indoor space information may extract the shape and brief attribute information of an indoor structure from BIM (Building Information Modeling, 3D Design Information) information for designing a building, and input and manage the feature information DB 114.

Referring to FIG. 3, from a hardware point of view, the virtual reality server 100 of this embodiment includes a memory 2 for storing one or more commands and a processor 4 for executing the one or more commands stored in the memory 2. and a computing device on which a computer program stored in a medium is executed to execute a method of implementing a walking path network in virtual reality. The virtual reality server 100 of this embodiment may include a data input/output interface 6, a communication interface 8, a data display unit 3, and a data storage unit 5.

4 to 11 are schematic diagrams for explaining a method of implementing a walking path network in virtual reality according to an embodiment of the present invention.

In step 1), the virtual reality server 100 sets a geographic area lattice 10 composed of geographic area nodes 12 and geographic area links 14 based on geographic information (see FIG. 4 ).

As an example, the geographic area grid 10 may be set as follows.

First, a plurality of terrain foundation nodes 12' are arranged according to preset conditions, and a terrain foundation grid 10' is created in which adjacent terrain foundation nodes 12' are connected to each other with terrain foundation links 14'. ((a) right side of FIG. 5). As an example of a preset condition, the size of one side of one lattice constituting the terrain foundation lattice 10' may be about 1 m, but is not limited thereto. In this embodiment, the lattice is described as an example of a square lattice shape, but is not necessarily limited to this lattice shape and may be implemented in various polygonal shapes including a rectangle.

Next, a terrain region grid 10 is created by assigning a height value to each terrain foundation node 12' based on the digital elevation model.

More specifically, the digital elevation model is composed of an elevation value grid 20 to which elevation values of topography are assigned to each unit grid 22 (left side of FIG. 5 (a)). For example, the size of one side of the unit cell 22 constituting the elevation value grid 20 may be approximately 30 to 50 m, but is not limited thereto.

The virtual reality server 100 overlaps the terrain foundation grid 10' with the elevation value grid 20 (FIG. 5(b)), and overlaps each terrain foundation node 12' The terrain area grid 10 is created by assigning the elevation value of the unit grid 22 as the height value of the corresponding terrain foundation node 12' (FIG. 5(c)). According to this process, each geographic area node 12 constituting the geographic area grid 10 becomes a state in which height values based on elevation values are assigned as shown in FIG. 5(c).

The size of the terrain base grid 10' and the size of the elevation value grid 20 can be variously changed according to the settings of the server.

In step 2), the virtual reality server 100 sets a feature area grid 100 composed of feature area nodes 102 and feature area links 104 based on the feature information (FIG. 6).

Preferably, the feature (B) is an artificial feature (B) having an area where a person can walk.

The feature area node 102 and feature area link 104 are established based on the terrain area node 12 and feature area link 14 . That is, the feature area node 102 is set to overlap with the terrain area node 12 or overlap with a point of the terrain area link 14 .

For example, the size of the feature area link 104 may be set to a size equal to the size of the feature area link 14, for example, the topographic area link 14 constituting one topographic area grid 10 If the size of is 1 m, the size of the feature area link 104 may be set to 0.5 m obtained by dividing it into two parts or 0.25 m obtained by dividing it into quarters, but is not limited thereto.

For example, the feature area lattice 100 arranges a plurality of feature area nodes 102 according to a preset condition in each feature area BA, and mutually connects adjacent feature area nodes 102 to the feature area. It is set in the form connected by the link 104. The feature area BA may be, for example, an inner area divided by a boundary line indicating an outer wall of the building and a boundary line indicating a fence around the building.

The preset condition may be set in consideration of the required gait accuracy of the avatar. For example, when precise gait implementation is required, a plurality of feature area nodes 102 are used so that the size of the feature area link 104 is 0.25 m. , and if less precise implementation of walking is required, a plurality of feature area nodes 102 may be arranged such that the size of the feature area link 104 is 0.5 m. The size of the feature area link 104 may be set by an input of the manager client 300 or the user client 200 in consideration of the server's resource requirements and the required accuracy of walking simulation.

Referring to FIG. 6 as an example, in a state in which the terrain area lattice 10 including the terrain area nodes 12 and the terrain area links 14 is set according to step 1), a specific feature (eg, building) based on feature information This occupied area is set as a feature area BA on the terrain area grid 10 .

The feature area node 12 and the feature area link 14 located within the feature area BA are identified as a feature area node 102 and a feature area link 104, based on which the feature area node 102 and the feature area link 104 are identified. A region link 104 is established.

According to setting conditions, the feature area grid 100 may have a different grid size from that of the feature area grid 10 . For example, the feature area grid 100 may have a unit cell size of 0.25 m * 0.25 m, and the feature area grid 10 may have a unit cell size of 1 m * 1 m.

In general, in an outdoor walking environment, since an avatar walks while walking on a road toward a specific feature, the size of a grid constituting a walking path network may be relatively large. However, in an indoor walking environment of a feature such as a building, it is preferable that the size of the lattice constituting the walking path network is relatively small and precise because detailed motions of the avatar are implemented in a narrow indoor space.

Considering this point, in the walking path network N of this embodiment, the feature area grid 100 and the terrain area grid 10 are configured to have different grid sizes.

By setting such an adaptive grid size, the resources of the virtual reality server 100 required for setting the walking path network (N) and simulating the walking of the avatar are reduced compared to the method of uniformly setting the same grid size for outdoor and indoor areas. can do.

However, the feature area grid 100 and the feature area grid 10 do not necessarily have different grid sizes, and may of course have the same grid size according to a preset condition or setting input.

In step 3), the virtual reality server 100 continuously walks in the virtual reality space based on the terrain area node 12, the terrain area link 14, the feature area node 102 and the feature area link 104. This possible walking path network (N) is set.

6 as an example, in an outdoor environment outside the feature area BA, the avatar may change speed or change direction at the terrain area node 12 while walking along the terrain area link 14, and the feature area (BA) In an indoor environment inside, the avatar may change speed or change direction at the feature area node 102 while walking along the feature area link 104 .

Referring to FIGS. 7 and 8 , a walking path network N connecting the inside and outside of a feature B may be set as follows.

Based on the feature information, a feature boundary line BB defining an outer wall of feature B is set. The feature boundary line BB may also be understood as a boundary line setting the feature area BA of FIG. 6 .

The feature area node 102 is disposed inside the feature boundary line BB.

The feature area grid 100 is mutually linked to the feature area grid 10 outside the feature boundary line BB only through the passable boundary section BB1 in which walking is possible among the feature boundary lines BB. For example, the passable boundary section BB1 may be a front door or emergency exit of a building in which an indoor space and an outdoor space are interconnected.

For example, when the feature (B) is a building including n floors, the feature area grid 100 and the terrain area grid 10 are connected to each other on the first floor of the building.

For example, the setting may be performed by deleting a link overlapping the feature boundary line BB among the links connecting the feature area grid 100 and the feature area grid 10 .

Referring to FIGS. 7 and 8 , the walking path network N inside the feature B may be set as follows.

A feature boundary line BB defining the outer wall of feature B is set.

A feature dividing line BC defining an inner wall of feature B is set inside the feature boundary line BB.

The feature area node 102 is disposed inside the feature boundary line BB.

The feature area lattice 100 is interconnected with another feature area lattice 100 only through a passable section BC1 in which walking is possible among the feature dividing lines BC. For example, the passable section BC1 may be a hallway door or an elevator door connecting each room and a hallway of a building.

For example, the setting may be performed by deleting a link overlapping the feature dividing line BC among the links connecting the feature region grid 100 and the feature region grid 100 to each other.

8 to 10, when the feature B is a building including n floors, the walking path network N between the upper and lower floors inside the feature B can be set as follows. .

In the area (EA) where the elevator is installed among the areas inside the building, the property area node 102-2 on the upper floor and the property area node 102-1 on the lower floor are linked to each other through a vertical property area link 104H. For example, an area where an elevator is installed (EA) may be defined as an area where an elevator can be boarded based on feature information, and nodes having the same x-y coordinates but different z-coordinates (height values) based on a 3D coordinate space It can be understood as a region having .

The feature area nodes 102-1 and 102-2 for each floor may be created or set based on floor height information for each floor of a building included in feature information.

In the area SA where the stairs are installed among the interior areas of the building, the feature area node 102-2 on the upper floor and the feature area node 102-1 on the lower floor are mutually linked through an inclined feature area link 104S having a vertical inclination. do.

More specifically, the inclined feature area link 104S extends with a downward slope from the upper layer feature area node 102-2 and is managed as a component of the upper layer feature area grid 100-2. An area link 104S-2 and an upwardly inclined feature area link 104S-, which extends with an upward slope from the lower layer feature area node 102-1 and is managed as a component of the lower layer feature area grid 100-1. 1) is linked to each other in such a way that the nodes are merged at the middle height (HH) of the upper layer and the lower layer.

For example, in the merging of the nodes, the node 102-2' having the lowest height of the downwardly inclined feature area link 104S-2 of the upper layer and the highest height of the upwardly inclined feature area link 104S-1 of the lower layer This is achieved by merging nodes 102-1' having a height into one node.

According to these node link settings in the area (SA) where the stairs are installed, the node information of each step of the stairs connecting the upper and lower floors in the intermediate space and the link information connecting them are lumped together as feature information of the upper or lower floors. It is possible to classify and manage by, and has the advantage of not needing to set and manage separate feature information for stairs.

Meanwhile, the lattice size of the geographic area lattice 10 may be set variably.

First, for each feature B, the feature area grid 100 is set by default to have a smaller grid size than the feature area grid 10 . This state can be understood as the state of FIG. 7 .

Next, the number of entrances and exits of avatars entering and exiting the interior of each feature boundary BB is accumulated for each feature B for a preset period of time (eg, 1 month, 6 months, etc.).

Next, for the feature (B) for which the calculated cumulative number of entrances and exits of the avatar is equal to or greater than the preset condition, the size of the feature region grid 10 is set to that of the feature region grid 100 for the preset surrounding area outside the feature boundary line BB. Set the scaling change to be the same as the size. This state can be understood as the state of FIG. 11 .

For example, the preset condition or more may be variously set to conditions such as more than 10,000 visits per month and within the top 20% of the cumulative number of visitors compared to the total floor area of the building compared to other buildings within a radius of 1 km.

The preset surrounding area is an area that extends outward by 30 m based on the feature boundary line (BB) of the feature, or an area that is expanded by n spaces of the default terrain area grid 10 based on the feature boundary line (BB) of the feature It can be set under various conditions, such as an area.

A feature (B) for which the calculated cumulative number of entrances and exits of the avatar is equal to or greater than a preset condition can be regarded as a feature (B) visited frequently by the avatar walking, so that the avatar frequently walks even in a nearby area outside the feature (B). It can be seen that it is done. Therefore, it is preferable that the size of the lattice constituting the walking path network is relatively small and precise, since it may be necessary to implement detailed movements of the avatar similar to the indoor space even in a nearby area outside the corresponding feature B. Therefore, the size of the terrain area grid 10 is set to be reduced and changed to be the same as the size of the feature area grid 100 even though the surrounding area outside the feature B is an outdoor environment, so that detailed avatar operations are implemented. This can also be done in outdoor areas.

Embodiments of the present invention include programs for execution on various computers and computer readable recording media recording them. The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. The medium may be specially designed and configured for the present invention or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs, DVDs and USB drives, magneto-optical media such as floptical disks, and ROMs, RAMs, Hardware devices specially configured to store and execute program instructions, such as flash memory, are included. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler.

100: virtual reality server
200: user client
300: manager client

Claims (3)

A walking path network implementation method executed in a virtual reality server that implements virtual reality in a three-dimensional coordinate space based on topographic information and feature information,
1) setting a geographic area lattice composed of geographic area nodes and geographic area links based on geographic information;
2) setting a feature area lattice composed of feature area nodes and feature area links based on feature information - the feature is an artificial feature having an area where a person can walk, and the feature area nodes and feature area links correspond to the topography Established based on area nodes and terrain area links; and
3) setting a walking path network capable of continuous walking in virtual reality space based on the terrain area node, terrain area link, feature area node, and feature area link - the walking path network enables a person to walk in a virtual reality environment A method for implementing a walking path network in virtual reality, including;
memory for storing one or more instructions; and
a processor to execute the one or more instructions stored in the memory;
the processor,
Based on topographic information and feature information, virtual reality is implemented in a 3-dimensional coordinate space,
Establish a terrain area lattice composed of terrain area nodes and terrain area links based on the terrain information;
Establish a feature area lattice composed of feature area nodes and feature area links based on feature information, wherein the feature is an artificial feature having an area where a person can walk, and the feature area node and feature area link are connected to the terrain area node Established based on terrain area link-,
Establishing a walking path network capable of continuous walking in a virtual reality space based on the terrain area node, the terrain area link, the feature area node, and the feature area link - the walking path network is used for walking in a virtual reality environment Information about possible places is expressed as a three-dimensional node link-; Characterized by a virtual reality server.
A computer program stored in a computer readable medium to execute a walking path network implementation method in a virtual reality server that implements virtual reality in a three-dimensional coordinate space based on topographic information and feature information,
The walking path network implementation method,
setting a terrain area lattice composed of terrain area nodes and terrain area links based on the terrain information;
Setting a feature area lattice composed of feature area nodes and feature area links based on feature information - the feature is an artificial feature having an area where a person can walk, and the feature area nodes and feature area links are the feature area nodes Established based on the terrain area link with -; and
Establishing a walking path network capable of continuous walking in a virtual reality space based on the terrain area node, the terrain area link, the feature area node, and the feature area link - the walking path network is a walking path network in which a person can walk on foot in a virtual reality environment Information about possible places is expressed as a three-dimensional node link -;

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