TWI286719B - System of simulating flight navigation and the method of using the same - Google Patents

Abstract

Disclosed are a system of simulating flight navigation and the method of using the same. The system includes an Internet unit connected to a joystick with a push button, a flight simulation control module and a scene database. The joystick with a push button controls a view point to move on a display part. The flight simulation control module and the scene database work in coordination to display a data image on the display part, and immediately update the data image after accepting the three-axis information generated by the view point movement controlled by the joystick. The method of using said system includes: (1) preparation step (2) input step (3) update step (4) done step. Therefore, the joystick with a push button provides the best flight simulation effect, immediate scene update, easy expansion and update of flight simulation control module, high compatibility with virtual reality modeling language (VRML) format files, and quick image real time updates.

Description

1286719 IX. Description of the invention: [Technical field of the invention] The present invention relates to a simulated flight navigation system and a method for using the same, the basin has a control rocker portion with the best simulated flight effect, an instant update scene, and easy expansion/update Flight simulation control module, virtual reality model language (Virtual

Reality Modeling Language (VRML) format file compatibility is high, and 2D Geographic Information System (Geographic Information System, referred to as

GIS) format data and virtual reality model language (VRML) format data achieve the advantages of instant image update. [Prior Art] The conventional flight simulation system displays a fixed simulation scene on a screen, and the user performs flight simulation operation through the keyboard or the mouse to control the image of the aircraft on the screen. The conventional system produces the following deficiencies: [1] Control keyboard/mouse produces poor simulated flight effects. The fighters need to be in the air for a few seconds _, and quickly make various flying actions by the hand holding the hand = or launching the flying squad, the squatting ship is operated on the keyboard/material, and the hand holds the rocker. , - Once you get on the job, you need to adapt and work poorly. , % [2] cannot update the virtual scene in real time. The flight simulation is a set of virtual reality, and the virtual scenes that can be presented are fixed. If the real situation is changed, the virtual training scene will not be met. ~ only clothing 5 1286719, [3] can not expand / update the flight simulation control module. The hardware and software of the conventional flight simulation system are a combination of suits. The same set of software has been used for a long time. No matter the scene or operation is too reduced, it cannot be updated. If it is to be updated, the whole system must be replaced and the construction cost is relatively increased. . (4) The package software has poor compatibility with fixed formats. The use of flight simulation system. (4) In combination with the New Zealand recording system, if only the approximate hardware similar to the hardware money is replaced, the compatibility may be poor, and the machine may be damaged or the system may be easily damaged. Therefore, it is necessary to develop a new technology that can solve the above problems of conventional devices. SUMMARY OF THE INVENTION The main object of the present invention is to provide a simulated flight navigation system and a method of using the same that controls the rocker portion to have an optimal simulated flight effect. A second object of the present invention is to provide a simulated flight navigation system and method of use thereof that can instantly update and replace virtual scenes. The X-purpose of the present invention, the simulation flight navigation system and its use method, are easy to expand/update the flight simulation control module. Still another object of the present invention is to provide a simulated flight navigation system and its method of use, which is highly compatible with a virtual reality model language (VRML) format file. Another object of the present invention is to provide a simulated flight navigation system and a method for using the same, which uses a 2D Geographic Information System (GIS) format data in conjunction with Virtual Reality Model Language (VRML) format data to achieve rapid image instant update. The invention provides a simulated flight navigation system and a method for using the same. The system 6 1286719 part includes: an internet unit; a simulated flight unit is provided with at least a rocking portion, a display portion and a central processing unit. The rocker is miscellaneous and its operation is operable - the video is moved up on the display portion. The central processing 11 is used to connect the rocker portion and the display portion to the Internet unit*, 4 _ — f _ The unit 'system __ is used to interpret the simple flight unit connection; the data feeding unit can display a data image of the virtual reality model language format on the display portion; and control the three axes generated by the viewpoint according to the rocker portion Information, instant update of data images. The method of use includes the following steps: 1. a preliminary step; - a · an input step; a third update step; and φ a fourth completion step. The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein. The present invention will be described in detail in the following embodiments with reference to the drawings. [Embodiment] Referring to the first and second figures, the present invention is a "simulation flight navigation system changing its use method" Including: an internet unit 10; 7 1286719. - a simulated flight ticket 〇 ' is provided with at least one rocker portion 2 - display 22 and - central processor 23, the rocker portion 21 with its button _ operable A = 211 is moved on the display portion 22; the central processing unit 23 is configured to connect the display port 21 and the display portion 22 to the Internet unit (7). The stomach (4) 1 service unit 30 'the two-way gateway road unit it 10 is connected to the simulated flight unit 20; the data servo unit 30 can display the virtual shell language on the display unit 22 (Virtual Reality such as (5) • Un Xing e, _ job) format data image 301; and according to the rocker portion 21 to control the three points 212 generated by the viewpoint 211 (as shown in the fourth figure), the data image 3 is updated in real time (U. The simulated flight navigation system of the invention. In practice, the rocker portion 21 cooperates with the viewpoint 2 (for example, an aircraft image) to move on the data image 301 (for example, the Grand Canyon) of the display portion 22 (also can be said to be The X-axis coordinate and the γ-axis coordinate of the display portion 22 are shifted to transmit a three-axis information 212 (i.e., the X-axis and Y-axis coordinates of the viewpoint 211 movement) to the data feeding unit 30. The display unit 22 is a VRML browser. The data server unit 30 includes at least: a flight simulation control module 31, which is written by the VRML syntax and can receive the three-axis information 212 sent by the rocker unit 21; The scene database 32 has at least 2d which can be converted to each other. Resource 8 1286719 Geographic Information System (GIS) format data 321 and virtual reality model language (VRML) format data 322, the 2D geographic information system (GIS) format data 321 and virtual reality model language (VRML) The format data 322 collectively constitutes an updated image data 32A, and the scene database 32 can receive the two-axis poor news 212 in the verification control core group 31, and output the updated data according to the internally stored scene data operation. The image 32 is used to instantly update the data image 301 of the display unit 22.

In practice, the 2D geographic information system (GIS) format data 321 and the virtual real language (VRML) format data 322 are converted ("Civil China Republic Patent No. 90127259" to present a 3D virtual reality geographic information system ( GIS)"), through the construction of the index table and attribute link points, to retain the original attribute data. In addition, the present invention can overcome the recording delay caused by a large amount of graphic data on the Internet unit 1 , and interact with the X3D (Extensible 3D) syntax through the virtual reality _ language to allow the user to use the rocker portion. 21, by contacting the data server unit 3q through the Internet unit 1G, to instantly update the data image 301. Referring to the first, first and third figures, the method of using the simulated flight navigation system of the present invention comprises the following steps: 1. preparatory step 91: preparation - internet single it 10, simulated flight unit 20 and a data The feeding unit 30, the simulated flying unit 20 at least has a shaker 4 21, a display portion 22 and a central processing unit. The rocker portion 9 12867.19 21 cooperates with its button 210 to operate a viewpoint 211 on the display portion. Moving up 22; the rocker portion 21 and the display portion 22 are transmitted through the central processing unit 4, and connected to the data servo unit 3 via the Internet unit 10; an input step 92. The data servo unit 3G The data image of the virtual real language format can be displayed on the display unit 22: for a user to cooperate with the control point 211 to attach a simulation image to the service image; 3. Update Bulong: Manipula The rod portion 21 and its control unit • the viewpoint 211 moves on the data image 3〇1 (as shown in the fourth figure, the three-axis A 212 is generated) the flight simulation unit of the shell feeding unit 3〇 Written by the test ^ grammar) synchronously receive the joystick part of the heart The three-axis information 212 is continuously transmitted to the updated three-axis information 212 to the scene database 32 of the data server unit. 4. In step 94, the scene database 32 has a 2D (10) format. The micro-common composition of the updated image data 32A, the scene of the poor silk from the Weng she (four) to do = signal offense, according to the field of field operations and immediately turn ^ ^ ^ factory image 32A used to instantly update the information of the display part 22 image. Referring to the fourth figure, the basic principle of the present invention, if the elevation angle of the viewpoint 2U can be defined by the right-hand law rotation direction along the X-axis, it is defined by its own definition: 1: refer to the sixth figure). The rientati〇n interception 'in the direction of the moving direction Μ the line shown in the inner line is defined as the y axis) to manipulate the elevation angle, and the horizontal direction angle 1286719 = can be defined along the Y axis according to the right hand rotation direction, where the horizontal angle The direction of rotation is corrected by the Υ axis, clockwise or counterclockwise; the direction of rotation of the vertical angle is the vector rotation of the current angle of view (9) as the axis, and rotates clockwise or counterclockwise; 362 (see the sixth figure). The progress can also be controlled by the Transf〇rm node, which is also a common group node (Gr〇uping her), which defines a local coordinate system that can be scaled, rotated, or Translation, the deformation (Tmnsform) node and other node groups can also be sharp group nodes, so that other nodes can trigger the deformation (TransfQrm)_ through the event, but at the same time retain the ability to manipulate the entire group activity; to utilize the deformation node Zoom, rotate, or pan. Referring to the first and fifth figures, in practice, the financial system of the present invention connects the rocker portion 21 and the service unit 3 through the internet unit H), and waits for the user # as the joystick. The portion 21 generates a three-axis information 212; and then passes through the flight simulation control group 31 to touch the three (four) signals 212 of the rocker portion 21 (including at least the X-axis signal and the Y-axis signal), and respectively perform the horizontal angle operation of the viewpoint 211 And an elevation angle calculation; updating the rotation direction of the viewpoint 211 by using the operation point of the viewpoint 21! horizontal angle calculation and the viewpoint 2ii elevation angle calculation; and receiving, by the flight simulation control module 31, the signal of the button 210 (may be acceleration), The flight speed calculation is performed by adjusting the forward distance of the viewpoint 211 per second; the viewpoint 211 coordinates are updated by the operation value of the flight speed calculation; and the scene database 32 calculates the rotation direction and the viewpoint 211 coordinates according to the new 1286719 new viewpoint 211 The image data 32A is updated, and the data image 301 of the display unit 22 is updated with the updated image data 32A; the above operation is repeated. That is, the data image 301 interface of the VRML format designed by the present invention can be connected to the rocker portion 21, so that the user can grasp and manipulate the rocker portion 21 by controlling and manipulating (for example, controlling the aircraft like a pilot like front and rear left and right). Instantly update the system image 301 to browse the map (data image 3〇1) in flight mode (via viewpoint 211). Referring to the sixth figure, the flight simulation control module 31 cooperates with each node as follows: A description node 33 adjusts the position and direction of the movement of the viewpoint 211, and the description node 33 includes a control detector 331 ( C〇ntr〇1 , detector), a route generator 332 (ROUTE Generator) controlled by the control detector 331 (ie, three-axis information 212) and a positioning/orientation calculator 333 (Position/Orientation Calculator) The PROTO joystickSensor <detection node 34 is associated with the control detector 33 and outputs the three-axis information 212 (including Χ, γ, Ζ|^) to the control detector 331. A TimeSensor node 35 presets the event trigger time point and transmits subsequent instructions to the control detector 331 (the control detector) of the description node 33. A routing (ROUTE) component 36' includes at least one location interpolating cry 12 1286719 (Positionlnterpolator) 351 and

Ml and - (Orientationlnterpolator) 362 and other two noders 361 and the direction interpolating H 362 are connected to the interpolator

• Interpolate the calculus separately and contact the orientation operator 333 of the description node 33. a viewpoint node 37, which is in contact with the position interpolator 361 and the direction interpolator 362, which updates the information of the viewpoint 211 after obtaining the value of the interpolation calculation, and feeds the updated information to the description. Azimuth of node 33. Operator 333. The relationship between the attribute block of the VRML language g required by the present invention and the above-mentioned nodes is as follows: [1] The main related attribute block includes: SFRotation, and MFRotation; [2] The related nodes used include: Description (Scrip1:) node 33 a TimeSensor node 35, an Interpolator node, a routing element (R〇UTE) 36, and a Viewpoint node 37····, etc.; the interpolator includes at least: 361 (Position Interpolator) and direction interpolator 362 (0rientation 13 1286719

Interpolator) two. The SFRotation attribute interception system describes a single-valued field of an arbitrary rotation value around an arbitrary axis, which contains four floating-point numbers. The first three values define the vector of the rotation axis (the vector remainder_predetermined point calculation); The value defines the rotation angle centered on the axis of rotation (in radians 'and the rotation rule uses the right-hand rule). Furthermore, the so-called single value, which can be a single number, or a number defining a vector or a color, can even be a set of numbers defining an image; a property block of a single value type, The name begins with "SF". The so-called multi-value 'is the attribute placement with multiple single values, the name starts with the taste"; the so-called MFRotation-based interception is any arbitrary rotation value around any sleeve. In more detail, the description node 33 In the vrml or X3D file, for the difficulty of complex behavior and the misunderstanding, write the code to increase the logic judgment ability of VRML/X3D. 'The original view does not specify the type of programming language; The description of the language (Javascript) is simpler and more advanced. The image image 301 must be handled by the claws (leg) programming language. When writing the code, you can use the function provided in the Scene Authoring Interface (SAI, Scene Authoring Interface). The object in the data image 3〇1 is operated; the description node 33 may include a function of receiving an event, a function executed when receiving the event, a block used by each of the partial numbers to store the intermediate data, and a function of the aforementioned block transmitted by each function. Values and other functions; the description node can accept 12867.19 passed from a node to participate in the operation and operation of the function created by the avatar or the TavaScript language. Generating the value of the value (4) - a node, you can create a complex function including any logic judgment, greatly improve the dynamic performance of the Pei, so as to achieve the transmission of data between various conditions. About the joystick detection (PROTO joystickSensor The use of node 34 (as shown in Figure 6) 'Because Fox provides several types of nodes, called internal node types' but actual applications may require new node types, prototypes (_切加^ > I VRML syntax implementation) The basic mechanism of the node type expansion, the joystick 34 is extended to the set node, and the three-axis (X, Y, Z axis) information 212 of the rocker unit 21 can be obtained through the Internet unit 1 . The TimeSensor node 35 defines the time in the X3D (Extensible 3D) of the Greenwich Mean Time, 1970, the next day, the point, the second, and the second, the time elapsed from the origin, and the value is one. Double-precision floating-point data; TimeSensor node 35 can continuously generate events over time, and its uses can include driving continuous images, controlling periodic activities, and starting to occur separately. The juice acti〇n-changed is one of the time slots of the TimeSensor node 35, and its value can be increased from 〇 to 1 to indicate how much the current period has been completed. The end of a cycle, and the beginning of a new cycle, by directing this value to other nodes, changes the dynamic change effect; in short, the movement effect of the object is mostly based on TimeSensor. 15 1286719 The routing component (R0UTE) The 36 system represents the way to transmit information between specific interceptors in different nodes, and is regarded as the transmission of an event. It is transmitted through the event receiving and transmitting system, and is transmitted in turn. Each time a node is changed, part of the blocking position of the node is changed, thereby constructing a The dynamic behavior of the series, such as changes in the state of the node, the generation of new events, or even directly changes the hierarchy of the data image 301; in addition, nodes of different levels can be directly associated through the routing component 36. The definition of the viewpoint node 37 is at a specified position in the local coordinate system from which the user can observe the scene (ie, the shirt figure 301), and the viewpoint can be placed in the v-leg l. Specifying the initial position of the user who has just entered the scene; once the viewpoint is activated, the scene in the browser window is also changed accordingly, so that the operation towel can be moved, and then the viewpoint is displayed. The scene is constantly changing. The Viewpoint node includes the following blocks: [a] centerOfRotation : Specifies the center of rotation of the viewpoint, as defined in X3D (Extensible 3D). [b] fieldOfView : Sets the angle value of the viewpoint 'in radians, where the small angle produces an effect similar to a telephoto lens; the large angle produces an effect similar to a wide-angle lens; the Xiaodu value is defined between the Q shots; The value is equivalent to 45 degrees. [C] J_ : indicates that when the viewpoint position changes, the display unit 22 can immediately switch to the new data image 301, and the setting value is Sin, that is, no space between the two positions before and after 16 1286719, if set A value of FALSE, which renders a smooth moving pattern; [d] orientation · the direction coordinate of the viewpoint, specifying a direction of the viewpoint rotated relative to the preset direction; and [e] position : the position coordinate of the viewpoint, in the local area In the coordinate system, the relative position of the Viewpoint node 37. The data types of the above-mentioned blocks are as shown in the seventh figure, where: i SFVec3f: contains three floating-point numbers, which define the vector of the three-dimensional space. SFFloat: Contains a single precision floating point number in the American National Standards Institute (ANSIC) format. SFBool : Valid values are TRUE or FALSE. As for the interpolator, the special event processor can continuously provide time information through the time-synchronized (TimeSensor) node 35 to process special events, which utilize a specific algorithm according to a given key value. _ Output, for example: Position Interpolator node, which is the value of fraction_changed of the TimeSensor node 35, and then determines the interpolation value of the next position coordinate according to the value. The Orientation Interpolator node is also based on the fraction_changed value and determines the interpolated value of the next direction coordinate. Furthermore, each interpolator can be used to design dynamics. For complex behavior processing, 17 1286719 must use the description node 33 and include a set of functions written in the description language. The description, point 33, will execute the corresponding function after receiving the event. The function can send an event through a regular event route or directly send an event to the node designated by the description node 33; or, a Separat(R) object can be used to limit the scope of the influence to facilitate segmentation of different scenarios. The three-dimensional space described in the VRML grammar is called the virtual realm (heart (four) World) 'It is composed of objects. In theory, these objects can be any information, for example: 3D geometric plane, digital interface of musical instruments (referred to as face plus (4) I gift Ugly Digital Interface) information, joint image expert group (referred to as JPEG, J0int Photographic Εχ _ image, moving files. . . . etc.) and objects and their attributes are described by each node, so each node can be regarded as the basic of VRML Units; each node consists of type, parameter field (7), his name, and child nodes. 'The nodes are determined by the rules of the field (s_graph). 'According to environmental changes, system interactions, coffee changes, etc., for example, The sensor (Sens〇)r detects and issues an initial event, triggering the generation of other events or modifying the scene graph structure to provide dynamic characteristics. The advantages and effects of the present invention are as follows: [1] The control rocker portion has the best simulated flight effect. In view of the fact that the fighter is in the middle of the second year, the joystick held by the hand quickly makes various flight actions or launches missiles. The present invention uses the rocker portion to match the control of the button and the actual manipulation on the fighter. The method is exactly the same, and it can be used to develop the hand rapid response operation 1286719, with the best simulation flight effect. [2] Instantly update the virtual scene. Assume that the simulated flight flies from Taipei to the screen area, and the control rocker is transparently connected to the __ road unit. The __in-the-band analog control module and the scene are rich in the scene (ie, the virtual & Then control the south line of the viewpoint with the rocker, and output the three axes synchronously.

“Poverty News” instantly updates virtual images (such as Taipei, Taoyuan, Taichung) with three-axis information. [3] Easy to age / update Weng Gu (four). The flight simulation control surface _ scene data of the present invention is aging and can be independently updated, and it is easy to expand/replace the latest information at any time. [4] VRML format files are highly compatible. The present invention is written in a grammar manner, and can be applied to various departments, systems, or operating platforms, and is highly suitable for use in direct connection with the original system in various related fields.

[5] 2D and 3D images interact with the image for instant update. The invention interacts with the X3D (Extensible 3D) grammar through the VRML grammar, and builds the index table and the attribute connection point to retain the original attribute data, so that the user can contact the dragon ship unit through the internet unit to quickly and instantly update the data. Image, flying at high speed with a simulated fighter. The above is only the detailed description of the present invention by way of a preferred embodiment, and the invention is not limited to the spirit and scope of the invention. From the above detailed description, it will be apparent to those skilled in the art that the invention can be applied to the invention. The above-mentioned purpose is in accordance with the provisions of the patent law, and the following is a schematic diagram of the system architecture of the present invention. The second diagram is a schematic diagram of a preferred embodiment of the present invention. The fourth diagram is a schematic diagram of the concept of viewpoint rotation and movement of the present invention. The fifth diagram is a schematic diagram of the process of the simulated flight navigation of the present invention. The sixth diagram is a schematic diagram of the process of the simulated flight navigation of the present invention. The viewpoint of the invention includes a field correspondence table [Description of main component symbols] 10 Internet unit 21 rocker section 211 Viewpoint 22 Display section 30 Data servo unit 31 Flight simulation control module 32A Update image data 322 VRML format data 331 Control detection 333 azimuth operator 20 simulation flight unit 210 button 212 three-axis information 23 central processing unit 301 data image 32 scene database 321 2D GIS format data 33 description node 332 route generator 34 rocker debt measurement node 20 1286719 35 time detection node 361 Position Interpolator 37 Viewpoint Node 92 Input Step 94 Completes Step 36 Routing Element 362 Directional Interpolator 9 1 preliminary steps 93 update steps Μ moving direction

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Claims (1)

1286719 X. Patent application garden: 1. A simulated flight navigation system, comprising: an internet unit; a simulated flight unit, at least provided with a rocker, a display, and a central processing $, The rocker portion cooperates with the touch operation thereof - the viewpoint moves on the display P. The central processing n-rib rocker portion and the display portion disk of the internet unit are connected; a poor material servo unit is transmitted through the The transfer unit and the fly-to-fly line are connected; the data unit can display a virtual reality model on the axis display portion of the dragon; the silk shaft is miscellaneous to generate the two-axis information generated by the viewpoint, and the data is updated instantly. image. 2 For example, the simulated flight navigation line described in item i of the application of the revolving fiber, wherein: the data servo unit comprises at least: an a-a-aged amount of the gamma virtual real language (peace) grammar writing, and can receive the The three-axis information issued by the rocker section; ^ A scene database' has at least 2D geographic I system (GIS) format data and virtual reality model language (v Tao format data 'the 2D geographic information system ( The GIS) format data is combined with the virtual reality model language (VRML) format data to update the shadow material, and the scene database can receive the three-axis information from the flight simulation control module and operate according to the internally stored scene data* Instant output - update the asset image to instantly update the data image of the display unit; 22 12867.19 to instantly output the updated data image for instant updating of the data image of the display portion. 4. If the patent application scope is the third item The method for using the simulated flight navigation system, wherein: the virtual reality model language format of the image data inputting step t is (VRML) format; The flight simulation control module receives the three-axis information of the rocker portion, and performs horizontal angle calculation and elevation angle calculation of the viewpoint respectively; respectively, the calculated horizontal angle angle calculation value and the viewpoint elevation angle calculation value are used to update the rotation direction of the viewpoint, and The flight simulation control module receives the signal of the button, adjusts the forward distance of the viewpoint per second, and performs the flight speed calculation; and then uses the operation value of the flight speed calculation to update the viewpoint; the scene database is updated according to the viewpoint rotation direction. Calculating the updated image data with the viewpoint coordinates, which is used to update the data image of the display portion. • The method for using the simulated flight navigation system according to claim 4, wherein: the flight simulation control module cooperates Each node is as follows: Describe a node, which can adjust the position and direction of the viewpoint movement, and the description node includes a control detector, a three-axis information control route generator sent by the control detector, and an orientation operation. According to the rod detection node, the control detector is contacted and outputs the three 24 1286719 - Axis information to the control detector; time detection node, which is a preset event triggering point and transmits subsequent instructions to the control detector of the description node; / routing element 'includes at least - position interpolator and - Direction interpolation '1, the position interpolator and the direction interpolator are connected to the time detection node', and the buckle is provided for the event to be transmitted to the scale by the component; the routing component from the time The detection_and the description #point routing generates a triggering time point, thereby triggering the position interpolation J and the direction interpolation g, and the position interpolator and the direction interpolator can respectively perform interpolation and contact to The azimuth operator of the description node; a view point node, which is associated with the position interpolator and the direction interpolator, and the view node updates the information of the view point after obtaining the value of the interpolation calculation, and feeds back the updated information. To the azimuth operator that describes the node. • 6 · (4) Please paste the 5th compensation simulation flight navigation method, in which the relationship between each node and the VRML language of the simulated flight navigation system is as follows: • The main related attribute block includes: SFRotation And the related nodes used by MFRotation; [2] include at least: a description node, a time detection node, an interpolator node, a routing element, and a viewpoint node; the interpolator includes at least: a position interpolator and a direction interpolator 25 1286719 , 8 , SFRotation property interceptor describes a single-valued field of arbitrary rotation around any axis, which contains four floating-point numbers, the first three values define the vector of the rotation axis, the vector is from the origin The predetermined point is calculated; the fourth value defines the rotation angle centered on the rotation axis, which is expressed in radians, and the rotation rule adopts the right-hand rule. 7. The method of using the simulated flight navigation system described in claim 6 of the patent scope, wherein: • the description node is a virtual reality model language (in the VRMLVX3D format file, the handling of complex behaviors and the connection with external programs) Write code to increase the logical judgment execution ability of Virtual Reality Model Language (VRML)/X3D, which is selected from one of Javascript and Java programming languages; The Scene Authorization Interface (SAI) provides a function to manipulate objects in the data image; the object is selected from the description node that can include receiving events, functions executed when receiving events, and blocks used by each function to store intermediate data. And one of the values of the aforementioned intercept bits sent by each function, the description node can accept the parameters passed from the - node, and is processed by a function established by JAVA programming language/Javascript language (Javascript) The operation 'given the new value to the other node, you can create a complex function including any logical judgment. Improve the virtual reality model 26 1286719 8 . Such as ° Shen 5 ^ = lazy (four) between the age of the transmission. The fifth ship of the show · Bo Hang New Zealand users / ί: 'Yin Yin: It can be through the Internet The rocker _ section, the _ expansion setting node unit obtains the three-axis information of the rocking part; the time detecting node takes the coffee that has passed the predetermined original as the value Wei value - double concentrate material #料; The use of the _ rain-detecting point includes at least: driving a continuous picture, controlling a periodic activity, and starting a separate event; 々 70 pieces of the route show the specific view of the money _ the way of sending information / and regarded as _ human event Passing through the event receiving and sending system, passing in turn, changing the block of the node every time the node passes, thus constructing the dynamic behavior of the series, for example: changing the state of the node, generating new events, changing the data image Hierarchical structure; and nodes of different levels can be directly related through the routing component; the position/direction interpolator node is a special event processor, and the node can be continuously provided time by the time of being activated. a message to handle a special event, which is rotated according to a given key value using a particular algorithm; the position interpolator node receives the time detection node as if - (4) the value is then based on the value of the mosquito-down position The interpolated value of the coordinates; the interpolator node in this direction is based on fraction-changeg and determines the interpolated value of the next party 27 1286719 to the coordinates. 9. The use of the simulated flight navigation system as described in claim 5 The method, wherein: the viewpoint node is in a predetermined position in the local coordinate system for viewing the data image on the simulated flight navigation system; the viewpoint node includes the following positions: [a] centerOfRotation: specifies the rotation center of the viewpoint, The field Φ is defined in X3D (Extensible 3D); [b] fieldOfView · Set the angle value of the viewpoint in radians, where the small angle produces an effect similar to a telephoto lens; the large angle produces a wide-angle lens The effect; the angle value range is defined between 〇 and ;; the default value is about 45 degrees; [c] Jump : indicates the change in the position of the viewpoint The display can immediately switch to the new data image. At this time, the set value is the face, that is, there is no space between the two front and back records. If the set value is FALSE, the smooth moving type is displayed; • [d] Orientation: The direction coordinate of the viewpoint, specifying the direction of the viewpoint relative to the preset direction; and [e] position: the position coordinate of the viewpoint, which is the relative position of the viewpoint node in the local coordinate system. 1〇·Use of the simulated flight navigation system as described in claim 9 28 1286719 The method, wherein the data type of each field is as follows: SFVec3f: contains three floating point numbers, defines a vector in three dimensions; SFFloat: contains a single precision floating point in the American National Standards Institute (ANSIC) format SFBool : Valid values are TRUE or FALSE. 29