CN110213641B - 4D micro-course playing method and device - Google Patents
4D micro-course playing method and device Download PDFInfo
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- CN110213641B CN110213641B CN201910425617.0A CN201910425617A CN110213641B CN 110213641 B CN110213641 B CN 110213641B CN 201910425617 A CN201910425617 A CN 201910425617A CN 110213641 B CN110213641 B CN 110213641B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T13/00—Animation
- G06T13/20—3D [Three Dimensional] animation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
Abstract
The invention relates to a 4D micro-course playing method and device. The method comprises the following steps: when the 4D micro class is ready to be played, analyzing the format of the 4D micro class; after the analysis is finished, playing the 4D micro lesson on a player; after the playing is paused, if a first interactive operation of a user is received, performing 3D interactive operation on the 4D micro-class according to the first interactive operation. Through the technical scheme of the invention, the 4D micro-class can be played by using the 3D model, and the 3D interaction with the micro-class can be realized by a user after the playing is suspended, for example, the user can manually perform roaming operations such as rotation, displacement and the like on the micro-class.
Description
Technical Field
The invention relates to the technical field of micro-class processing, in particular to a 4D micro-class playing method and device.
Background
At present, all the micro lessons in the related art are mainly videos, and there are many video editing tools, such as "meeting sound and shadow", PPT video recording software, and the like, but the process of playing the micro lessons in the related art can only be a pure 2D (planar) mode, and 3D (stereoscopic) interaction with the micro lessons cannot be realized, that is, roaming operations on models in the micro lessons cannot be realized, for example: the model in the class cannot be subjected to a roaming operation such as rotation and displacement (where the model refers to a display object viewed by the user on the display).
Disclosure of Invention
The embodiment of the invention provides a 4D micro-course playing method and device. The technical scheme is as follows:
according to a first aspect of an embodiment of the present invention, a 4D micro-class playing method is provided, including:
when the 4D micro class is ready to be played, analyzing the format of the 4D micro class;
after the analysis is finished, playing the 4D micro lesson on a player;
after the playing is paused, if a first interactive operation of a user is received, performing 3D interactive operation on the 4D micro-class according to the first interactive operation.
In an embodiment, in the process of playing the 4D micro class on the player, if a pause playing operation is not received and a second interaction operation of the user is received, the response is rejected, so that the user cannot perform a 3D interaction operation on the 4D micro class.
In one embodiment, the parsing the format of the 4D micro class includes:
analyzing attribute information of the 4D micro lesson, wherein the attribute information comprises at least one of basic attribute, animation attribute and teaching attribute of the 4D micro lesson;
determining the 3D material model corresponding to the 4D micro class according to the basic attribute of the 4D micro class;
the playing the 4D micro lesson on the player comprises:
processing the 3D material model according to the basic attribute and the animation attribute to form playing animation;
after the playing is paused, if a first interactive operation of a user is received, performing a 3D interactive operation on the 4D micro class according to the first interactive operation, including:
after the playing is paused, if the first interactive operation is received, performing interactive operation according to the first interactive operation and the 3D material model; displaying the multimedia resource determined based on the pedagogic attribute.
In one embodiment, the method further comprises:
when the 4D micro class is paused to be played, whether a marking operation is received or not is judged;
and if the marking operation is received, marking the 4D micro class according to the marking operation.
In one embodiment, the method further comprises:
receiving a knowledge point jumping operation;
and according to the knowledge point jumping operation, jumping from the 4D micro class to another 4D micro class or jumping from the current playing knowledge point of the 4D micro class to another knowledge point of the 4D micro class.
According to a second aspect of the embodiments of the present invention, there is provided a 4D micro-class playing device, including:
the analysis module is used for analyzing the format of the 4D micro class when the 4D micro class is prepared to be played;
the playing module is used for playing the 4D micro lesson on a player after the analysis is finished;
and the interaction module is used for carrying out 3D interaction operation on the 4D micro-class according to the first interaction operation if the first interaction operation of the user is received after the playing is suspended.
In an embodiment, the processing module is configured to, in the process of playing the 4D micro class on the player, reject a response if a pause operation is not received and a second interaction operation of the user is received, so that the user cannot perform a 3D interaction operation on the 4D micro class.
In one embodiment, the parsing module comprises:
the analysis submodule is used for analyzing attribute information of the 4D micro-class, wherein the attribute information comprises at least one of basic attribute, animation attribute and teaching attribute of the 4D micro-class;
the determining submodule is used for determining the 3D material model corresponding to the 4D micro class according to the basic attribute of the 4D micro class;
the playing module comprises:
the first processing submodule is used for processing the 3D material model according to the basic attribute and the animation attribute so as to form playing animation;
the interaction module comprises:
the second processing submodule is used for carrying out interactive operation according to the first interactive operation and the 3D material model if the first interactive operation is received after the playing is paused; displaying the multimedia resource determined based on the pedagogic attribute.
In one embodiment, the apparatus further comprises:
the judging module is used for judging whether a marking operation is received or not when the 4D micro class is paused to be played;
and the marking module is used for marking the 4D micro lesson according to the marking operation if the marking operation is received.
In one embodiment, the apparatus further comprises:
the receiving module is used for receiving the jumping operation of the knowledge points;
and the skipping module is used for skipping from the 4D micro-class to another 4D micro-class or skipping from the current playing knowledge point of the 4D micro-class to another knowledge point of the 4D micro-class according to the knowledge point skipping operation.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
after the format analysis of the 4D micro lesson is completed, it is described that a 3D material model capable of forming an animation is determined, and thus the 4D micro lesson can be automatically played on a player, so that a 3D animation is formed by using the 3D material model, and in the playing process, if a play pause operation is received, the play of the 4D micro lesson is paused, and after the play pause, if a first interaction operation of a user is received, a 3D interaction operation is performed on the 4D micro lesson according to the first interaction operation, so that the 4D micro lesson can be played by using the 3D model, and the user can realize the 3D interaction with the micro lesson after the play pause, for example, the user can manually perform roaming operations such as rotation, displacement and the like on the micro lesson.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a 4D micro-class playing method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating another 4D micro-class playing method according to an example embodiment.
Fig. 3A to 3L are screenshots of the attributes of the animation base classes.
FIG. 4 is a screenshot of a 4D micro course file of the present invention.
FIG. 5 is a screenshot of an editor's interface for a 4D micro course of the present invention.
Fig. 6A-6B are screenshots of the player interface of the 4D micro lesson of the present invention.
FIG. 7 is a screenshot of the tool built-in materials library of the present invention.
FIG. 8 is a screenshot of the web site materials library of the present invention.
Fig. 9 is a block diagram illustrating a 4D micro-class playback apparatus according to an exemplary embodiment.
Fig. 10 is a block diagram illustrating another 4D micro-class playback apparatus according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In order to solve the above technical problem, an embodiment of the present invention provides a 4D micro-class playing method, which can be configured in a 4D micro-class playing program, system or device, and an execution subject corresponding to the method can be a terminal or a server, as shown in fig. 1, the method includes steps S101 to S103:
in step S101, when a 4D micro class is ready to be played, the format of the 4D micro class is analyzed;
the preparation for playing the 4D micro lesson may be a player that starts playing the micro lesson.
The micro-lessons refer to structured digital resources which present fragmented learning content, processes and extended materials according to cognitive rules by applying an information technology.
The 4D micro lesson refers to a 3D material model + multimedia resources associated with the 3D material model, the multimedia resources are static resources, and may be characters, pictures, symbols, etc., such as fragmented or/a series of teaching characters, pictures, etc.; and the process of playing the 4D mini lesson, that is, the process of forming an animation by the 3D material model through movement, rotation, and the like and displaying the animation, the so-called 3D interactive operation is that when the playing is suspended, a user can perform a roaming operation (that is, perform the 3D interactive operation) such as dragging, rotation, and the like on the 3D material model displayed on the player, and at the same time, the 3D material model can be triggered (for example, clicked, pressed for a long time) to display static multimedia resources such as characters, pictures, and the like associated with the 3D material model.
In step S102, after the parsing is completed, playing a 4D micro class on the player;
the pause operation may be triggering a virtual pause key on the player, or triggering an entity pause key on the player, or triggering a key on the external device capable of controlling the player to pause playing.
In step S103, after the playing is paused, if a first interactive operation of the user is received, performing a 3D interactive operation on the 4D mini-class according to the first interactive operation. The first interactive operation is an operation for interacting with a 3D material model in a 4D lesson, and may be a roaming operation for rotating, displacing, and adjusting the moving speed, moving direction, moving acceleration, color, size, and the like of the 3D material model.
After the format analysis of the 4D micro lesson is completed, it is described that a 3D material model capable of forming an animation is determined, and thus the 4D micro lesson can be automatically played on a player, so that a 3D animation is formed by using the 3D material model, and in the playing process, if a play pause operation is received, the play of the 4D micro lesson is paused, and after the play pause, if a first interaction operation of a user is received, a 3D interaction operation is performed on the 4D micro lesson according to the first interaction operation, so that the 4D micro lesson can be played by using the 3D model, and the user can realize the 3D interaction with the micro lesson after the play pause, for example, the user can manually perform roaming operations such as rotation, displacement and the like on the micro lesson.
As shown in fig. 2, in an embodiment, the method further includes step S201, in the process of playing the 4D micro lesson on the player, if the pause operation is not received and the second interaction operation of the user is received, rejecting the response, so that the user cannot perform the 3D interaction operation on the 4D micro lesson.
In the process of playing the 4D micro-class, if the pause playing operation is not received but the second interaction operation of the user is received, the response is refused, so that the 4D micro-class can be normally played on the two-dimensional display, and the user cannot perform 3D interaction with the 4D micro-class when the playing is not paused (for example, the user is prevented from moving, rotating and the like the micro-class animation in the process of playing the 4D micro-class). The second interactive operation may be the same as or different from the first interactive operation, such as dragging, clicking a 3D material model in a lesson, and the like.
In one embodiment, parsing the format of the 4D micro class includes:
analyzing attribute information of the 4D micro lesson, wherein the attribute information comprises at least one of basic attribute, animation attribute and teaching attribute of the 4D micro lesson;
determining a 3D material model corresponding to the 4D micro class according to the basic attribute of the 4D micro class;
the basic attributes may include: the unique id (identification) of the 3D material model, the classification of the animation to be used for playing the lesson, and initial information such as the initial position, initial rotation angle, and initial zoom ratio of each type of animation. And the 3D material model needed to be used can be determined according to the unique ID of the 3D material model in the basic attribute.
The 3D material model can be a tool built-in material library (e.g., fig. 7), a website material library (e.g., fig. 8), such as a character material model, a tool material model, an instrument material model, a machine material model, etc. The repeated utilization rate of the material resources can be improved through the 3D material model, and the utilization rate of the material resources can be improved through the standardization of the parameters through the standardization model.
The animation attributes may be common attributes of different types of animations, such as current playing time, and personalized attributes of various types of animations, such as: the personalized attribute of the displacement animation is the current position of the object, the personalized attribute of the rotation animation is the personalized attribute of the current angle scaling animation of the object, the personalized attribute of the sound animation is the current scaling ratio of the object, the personalized attribute of the sound animation is the name of the sound file, and the like.
The teaching attributes can be characters, pictures and the like in a teaching question bank.
Playing a 4D micro class on a player, comprising:
and processing the 3D material model according to the basic attribute and the animation attribute to form playing animation.
After the animation attribute and the teaching attribute of the 4D mini class are determined, the change of the 3D material model in each frame of animation can be calculated according to the animation attribute (the change can be the current attribute of the 3D material model in the current frame of the current time or the difference value of the current attribute of the 3D material model in the current frame of the current time compared with the attribute of the previous frame, the attribute is position, angle, zoom ratio, etc.), and then the 3D material model is automatically moved, rotated, zoomed, played by sound, flicked, hidden, etc. according to the change, so as to form the 3D playing animation.
After the playing is paused, if a first interactive operation of a user is received, performing a 3D interactive operation on the 4D micro class according to the first interactive operation, including:
after the playing is paused, if the first interactive operation is received, performing interactive operation according to the first interactive operation and the 3D material model; displaying the multimedia resource determined based on the pedagogic attribute.
After the playing is paused, if a first interactive operation of the user is received, the interactive operation of rotating, shifting, zooming, hiding, setting flashing colors and the like can be performed on the 3D material model according to the first interactive operation and the historical attributes of the 3D material model when the playing is paused, so that the 3D material model can execute various actions along with the actions of the user, for example, the 3D material model can move along with the movement actions of the user, and rotate along with the rotation actions of the user.
After the playing is paused, after the user triggers the 3D material model, the player can judge whether the teaching attribute associated with the 3D material model exists, if so, the corresponding multimedia resource is displayed according to the teaching attribute, so that the user can watch the multimedia resource while performing 3D interactive operation.
In addition, the pause playing means that the 3D material model is not changed continuously according to the dynamic property to form playing animation.
In one embodiment, the method further comprises:
when the 4D micro class is paused to be played, whether a marking operation is received or not is judged;
and if the marking operation is received, marking the 4D micro class according to the marking operation.
When the 4D micro lesson is paused to be played, whether a marking operation is received or not can be judged, if the marking operation is received, the 4D micro lesson is marked according to the marking operation, so that a playing animation of the 4D micro lesson can be formed by using a 3D material model, an online painting function can be supported, important contents can be marked by using online drawings, and a teaching scene is met.
Of course, the marking of the 4D micro lesson may be the marking of a 3D material model in the 4D micro lesson, or the marking of a multimedia resource determined based on teaching attributes in the 4D micro lesson.
In one embodiment, the method further comprises:
receiving a knowledge point jumping operation;
according to the knowledge point jumping operation, jumping from the 4D micro class to another 4D micro class or jumping from the current playing knowledge point of the 4D micro class to another knowledge point of the 4D micro class.
After receiving the knowledge point jumping operation, the user can jump from the currently played 4D micro class to another 4D micro class or from one multimedia resource of the currently played 4D micro class to another multimedia resource of the 4D micro class according to the knowledge point jumping operation, so that the user can realize the jumping of the knowledge point or the jumping of the 4D micro class while playing the 4D micro class.
Of course, "jump from 4D micro lesson to another 4D micro lesson or from the current playing knowledge point of 4D micro lesson to another knowledge point of 4D micro lesson" may be performed as:
skipping from the current 4D micro class to a new micro class composed of other 3D material models (wherein, the other 3D material models refer to 3D material models different from the 3D material models in the current 4D micro class), or skipping from one multimedia resource of the current 4D micro class to another multimedia resource of the current 4D micro class.
The technical solution of the present invention will be further explained below:
the animation system analyzes the own 4D micro-class format, specifically, analyzes the 4D micro-class file, determines the basic attribute, the animation attribute and the teaching attribute in the 4D micro-class file, determines the loading material (namely, a 3D material model) forming the 4D micro-class according to the basic attribute, and then performs various operations on the 3D material model according to the basic attribute and the animation attribute to form the 3D playing animation. Specifically, the changes to be made to the 3D material model when each frame of animation is formed are calculated according to the aforementioned animation attributes, so that each frame of animation is formed using the 3D material model.
In addition, in the process of playing the 4D micro-class, playing can be paused, a 3D roaming mode is started after pausing, and a user can perform roaming operations such as rotation and displacement on a 3D model in the 4D micro-class, so that the user can realize 3D interaction with the 4D micro-class; in the roaming mode, a user can control a virtual camera in an animation system of the 4D mini class to move up and down and left and right through four keys W/A/S/D on a keyboard, and control the virtual camera to rotate through a right mouse key, once the virtual camera moves or rotates, shooting angles of the 3D material model are different, the shapes of the 3D material model at different angles after playing is paused can be obtained, and different animations formed by the 3D material model are formed.
After the playing is suspended, the function of an online brush is supported, and the requirement of online drawing to mark key contents is met, so that the teaching scene is met.
Jumping knowledge points are supported, and previewing the content of the knowledge points is supported.
In addition, the attributes of the animation in the animation system of the present invention are as follows (wherein, the animation system includes the attributes of the 3D material model and the following animation, and the basic attributes and teaching attributes in the 4D micro lesson, wherein the teaching attributes can be regarded as the question bank, and are characters, display pictures, etc. analyzed based on the question bank):
global state: play, pause, stop
Global property: current playing time
Common attributes of each animation: time of day
Unit: frame, 1 second 10 frames
The personalized frame attributes in each animation base class and each animation are as follows:
1) displacement animation (as shown in figure 3A)
Frame attribute: object current position the object in fig. 3A to 3L, i.e. the above-mentioned 3D material model
The playing method comprises the following steps: and calculating the difference value of the positions between the current frame and the previous frame through the current time.
2) Rotating animation (as shown in figure 3B)
Frame attribute: current angle of object
The playing method comprises the following steps: and calculating the difference value of the angle between the current frame and the previous frame through the current time.
3) Zooming animation (as shown in figure 3C)
Frame attribute: current zoom ratio of object
The playing method comprises the following steps: and calculating the difference value of the scaling ratio of the current frame and the previous frame through the current time.
4) Sound animation (as shown in figure 3D)
Frame attribute: sound file name
The playing method comprises the following steps: and calculating whether audio exists in the current frame or not according to the current time, and if the audio exists, determining the percentage progress which needs to be played currently so as to solve the problems of which audio is played and the playing progress.
5) Camera animation (as shown in figure 3E)
Frame attribute: camera position, camera rotation
The common playing method comprises the following steps: and calculating the difference value of the positions and the rotation of the current frame and the previous frame according to the current time.
The invention adds a playing method: after the 4D lesson is paused, calculating a position difference between the current position of the user and the stopping position of the 3D material model in the 4D lesson when the playing is paused and an angle difference between the current rotation angle of the user and the rotation angle of the 3D material model in the 4D lesson when the playing is paused, and further utilizing the difference value to transform the position and the rotation angle of a virtual camera in the animation system, so that the virtual camera is utilized to shoot the 3D model to obtain pictures of the 3D model at different positions and different rotation angles, namely, the 3D material model can act along with the action of the user, the interaction between the user and the 3D model is realized, the interaction is 3D interaction, and is also called as the roaming operation of the user on the 4D lesson.
6) Following animation (as shown in figure 3F)
Frame attribute: following the target, offset from the target, wherein the target is a 3D model in a 4D lesson.
The playing method comprises the following steps: and calculating the position + offset of the target into the current position, the rotation angle, the scaling and the like in real time according to the current time.
7) Flash animation (as shown in figure 3G)
Frame attribute: switch, color 1, color 2
The playing method comprises the following steps: the switch controls the on-off flashing, and the color 1 and the color 2 are flashing replacing colors and alternate with each other.
8) Self-passing animation (as shown in figure 3H)
Frame attribute: speed, i.e. the angle of rotation of the object per second
The playing method comprises the following steps: the velocity value by which the current object passes determines the velocity component of the object as it rotates about axis X, Y, Z.
9) Showing and hiding cartoon (as shown in figure 3I)
Frame attribute: switch with a switch body
The playing method comprises the following steps: and displaying the 3D model in the 4D micro class when the system is turned on, and hiding the 3D model in the 4D micro class when the system is turned off.
10) Process animation (scaffold type special animation) (as shown in figure 3J)
Frame attribute: duration of time
The playing method comprises the following steps: progress animation of the scaffold (model object) building process, wherein the scaffold is one of the 3D models.
11) Node animation: attribute (as shown in FIG. 3K)
Frame attribute: content providing method and apparatus
The playing method comprises the following steps: the method is used for solving the skipping of the knowledge nodes in the teaching scene, wherein the content in the graph 3K corresponds to the time.
12) Surrounding animation (as shown in FIG. 3L)
Frame attribute: speed, target
The playing method comprises the following steps: the velocity component through the X, Y, Z axis continues to rotate around the target.
The name of the 4D micro-class file of the present invention is shown in fig. 4. The editor in the animation system of the invention is shown in fig. 5. The player in the animation system of the present invention is shown in fig. 6A and 6B.
The storage structure of the basic attributes of the animation system in the invention is as follows:
the storage structure of the animation attributes of the animation system in the invention is as follows:
finally, it is clear that: the above embodiments can be freely combined by those skilled in the art according to actual needs.
Corresponding to the 4D micro-class playing method provided in the embodiment of the present invention, an embodiment of the present invention further provides a 4D micro-class playing device, as shown in fig. 9, the device includes:
an analyzing module 901 configured to analyze a format of the 4D micro class when the 4D micro class is ready to be played;
a playing module 902 configured to play the 4D micro-class on the player after the parsing is completed;
the interactive module 903 is configured to perform a 3D interactive operation on the 4D micro class according to the first interactive operation if the first interactive operation of the user is received after the playing is paused.
In one embodiment, further comprising:
and the processing module is configured to reject the response if the playing pause operation is not received and the second interaction operation of the user is received in the process of playing the 4D micro-class on the player, so that the user cannot perform the 3D interaction operation on the 4D micro-class.
As shown in fig. 10, in one embodiment, the parsing module 901 includes:
the parsing submodule 9011 is configured to parse attribute information of the 4D micro-class, where the attribute information includes at least one of a basic attribute, an animation attribute, and a teaching attribute of the 4D micro-class;
the determining submodule 9012 is configured to determine a 3D material model corresponding to the 4D micro class according to the basic attribute of the 4D micro class;
the play module 902 includes:
a first processing sub-module 9021, configured to process the 3D material model according to the basic attribute and the animation attribute to form a playing animation;
the interactive module 903 includes:
the second processing sub-module 9031 is configured to perform interactive operation according to the first interactive operation and the 3D material model if the first interactive operation is received after the playing is paused; and displaying the multimedia resources determined based on the teaching attributes.
In one embodiment, the apparatus further comprises:
the judging module is configured to judge whether a marking operation is received or not when the 4D micro-class is paused to be played;
and the marking module is configured to mark the 4D micro lesson according to the marking operation if the marking operation is received.
In one embodiment, the apparatus further comprises:
a receiving module configured to receive a knowledge point jumping operation;
a skip module configured to skip from the 4D micro class to another 4D micro class or from a currently played knowledge point of the 4D micro class to another knowledge point of the 4D micro class according to a knowledge point skip operation.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A4D micro-class playing method is characterized by comprising the following steps:
when the 4D micro class is prepared to be played, the format of the 4D micro class is analyzed, and the method comprises the following steps: analyzing attribute information of the 4D micro lesson, wherein the attribute information comprises basic attributes, animation attributes and teaching attributes of the 4D micro lesson, and determining a 3D material model corresponding to the 4D micro lesson according to the basic attributes of the 4D micro lesson;
after the parsing is completed, playing the 4D micro class on a player, including: processing the 3D material model according to the basic attribute and the animation attribute to form playing animation;
after the playing is paused, if a first interactive operation of a user is received, performing a 3D interactive operation on the 4D micro-class according to the first interactive operation, including: after the playing is paused, if the first interactive operation is received, the interactive operation is performed with the 3D material model according to the first interactive operation, which includes: rotating and displacing the 3D material model, and adjusting the moving speed, moving direction, moving acceleration, color and size of the model;
the method further comprises the following steps: after the playing of the 4D lesson is paused, calculating a position difference between the current position of the user and the stopping position of the 3D material model in the 4D lesson when the playing is paused and an angle difference between the current rotation angle of the user and the rotation angle of the 3D material model in the 4D lesson when the playing is paused, converting the position and the rotation angle of a virtual camera in an animation system by using the position difference and the angle difference, shooting the 3D model by using the virtual camera to obtain pictures of the 3D model at different positions and different rotation angles, and enabling the 3D material model to act along with the action of the user.
2. The method of claim 1,
and in the process of playing the 4D micro-class on the player, if the playing pause operation is not received and the second interactive operation of the user is received, refusing the response so that the user cannot perform the 3D interactive operation on the 4D micro-class.
3. The method of claim 1,
after the playing is paused, if a first interactive operation of a user is received, performing a 3D interactive operation on the 4D micro class according to the first interactive operation, further comprising:
and after the playing is paused, if the first interactive operation is received, displaying the multimedia resources determined based on the teaching attributes.
4. The method of claim 1, further comprising:
when the 4D micro class is paused to be played, whether a marking operation is received or not is judged;
and if the marking operation is received, marking the 4D micro class according to the marking operation.
5. The method according to any one of claims 1 to 4, further comprising:
receiving a knowledge point jumping operation;
and according to the knowledge point jumping operation, jumping from the 4D micro class to another 4D micro class or jumping from the current playing knowledge point of the 4D micro class to another knowledge point of the 4D micro class.
6. A4D micro-class playing device is characterized by comprising:
the analysis module is used for analyzing the format of the 4D micro class when the 4D micro class is prepared to be played;
the playing module is used for playing the 4D micro lesson on a player after the analysis is finished;
the interactive module is used for carrying out 3D interactive operation on the 4D micro lesson according to the first interactive operation if the first interactive operation of a user is received after the playing is suspended;
the parsing module includes:
the analysis submodule is used for analyzing attribute information of the 4D micro-class, wherein the attribute information comprises at least one of basic attribute, animation attribute and teaching attribute of the 4D micro-class;
the determining submodule is used for determining a 3D material model corresponding to the 4D micro class according to the basic attribute of the 4D micro class;
the playing module comprises:
the first processing submodule is used for processing the 3D material model according to the basic attribute and the animation attribute so as to form playing animation;
the interaction module comprises:
the second processing submodule is configured to, after the playing is paused, perform, if the first interaction operation is received, an interaction operation with the 3D material model according to the first interaction operation, and includes: rotating and displacing the 3D material model, and adjusting the moving speed, moving direction, moving acceleration, color and size of the model;
the interaction module is further configured to: after the playing of the 4D lesson is paused, calculating a position difference between the current position of the user and the stopping position of the 3D material model in the 4D lesson when the playing is paused and an angle difference between the current rotation angle of the user and the rotation angle of the 3D material model in the 4D lesson when the playing is paused, converting the position and the rotation angle of a virtual camera in an animation system by using the position difference and the angle difference, shooting the 3D model by using the virtual camera to obtain pictures of the 3D model at different positions and different rotation angles, and enabling the 3D material model to act along with the action of the user.
7. The apparatus of claim 6,
and the processing module is used for refusing response if the playing pause operation is not received and the second interaction operation of the user is received in the process of playing the 4D micro-class on the player, so that the user cannot perform 3D interaction operation on the 4D micro-class.
8. The apparatus of claim 6,
and the second processing submodule is also used for displaying the multimedia resources determined based on the teaching attributes after the playing is paused and if the first interactive operation is received.
9. The apparatus of claim 6, further comprising:
the judging module is used for judging whether a marking operation is received or not when the 4D micro class is paused to be played;
and the marking module is used for marking the 4D micro lesson according to the marking operation if the marking operation is received.
10. The apparatus of any one of claims 6 to 9, further comprising:
the receiving module is used for receiving the jumping operation of the knowledge points;
and the skipping module is used for skipping from the 4D micro-class to another 4D micro-class or skipping from the current playing knowledge point of the 4D micro-class to another knowledge point of the 4D micro-class according to the knowledge point skipping operation.
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