CN108495148A - image data loading method and device - Google Patents
image data loading method and device Download PDFInfo
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- CN108495148A CN108495148A CN201810282746.4A CN201810282746A CN108495148A CN 108495148 A CN108495148 A CN 108495148A CN 201810282746 A CN201810282746 A CN 201810282746A CN 108495148 A CN108495148 A CN 108495148A
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2407—Monitoring of transmitted content, e.g. distribution time, number of downloads
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Processing Or Creating Images (AREA)
Abstract
The present invention provides a kind of image data loading method, the method includes：Obtain the current kinetic trend of the display view angle of current engineering model；Determine the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend；According to picture to be shown needed for accessibility first seat in the plane to determine to need the partial data of the engineering model of loaded and displayed, and the partial data of the engineering model is loaded.The mode of the partial data of the pre-loaded engineering model of selectivity in this way effectively avoids and completely loads this data load mode for excessively taking and largely occupying memory resource to engineering model data.Meanwhile because targetedly being loaded to limited partial data, user need not wait for long time, image to show that apparent interim card will not occur in picture.
Description
Technical field
The present invention relates to pictorial database technique fields, in particular to a kind of image data loading method and device.
Background technology
Current 3-dimensional image model or cartographic model load mode is typically in server update model to local, so
Disposable 3-dimensional image model or cartographic model on the client afterwards, user need to wait for for a long time in load and generation.By
Performance is consumed very much in the process of stress model, so the problem of often leading to interface interim card.Current 3-dimensional image model
Or map loading scheme is after loaded, because data have all loaded in memory, on configuring lower equipment
The problems such as interim card falls frame can occur because of memory source deficiency, user experience is poor.Simultaneously in actually using scene, due to display
The reason of equipment, a certain range of parts of images model being only able to display under a certain visual angle, and object elsewhere is still
In memory, performance is wasted very much.And it is highly detrimental to data using a complete iconic model data packet for entirety
Update.
Invention content
In view of this, the purpose of the present invention is to provide a kind of image data loading method and devices, on being effectively improved
State defect.
The embodiment of the present invention is realized in the following way：
In a first aspect, an embodiment of the present invention provides a kind of image data loading method, the method includes：It obtains current
The current kinetic trend of the display view angle of engineering model；Determine that the display view angle is moved according to the current kinetic trend
Accessibility first seat in the plane after preset duration；Need are determined according to picture to be shown needed for accessibility first seat in the plane
The partial data of the engineering model of loaded and displayed is wanted, and the partial data of the engineering model is loaded.
Further, described to determine that the display view angle after moving preset duration according to the current kinetic trend
The first seat in the plane reached includes：Obtain the initial coordinate of the display view angle；According to the initial coordinate and the current kinetic
The mass motion trend of trend determines that the display view angle can arrive after moving preset duration according to the current kinetic trend
First coordinate of the first seat in the plane reached.
Further, described to determine that the display view angle after moving preset duration according to the current kinetic trend
The first seat in the plane reached further includes：Obtain the initial angle of the display view angle；According to the initial angle and the current fortune
The self rotation trend of dynamic trend determines that the display view angle can after moving preset duration according to the current kinetic trend
The first angle of the first seat in the plane reached.
Further, the current kinetic trend of the display view angle for obtaining current engineering model includes：Obtain the work
The movement velocity of the current kinetic trend of the display view angle of journey model；The movement velocity includes：Mass motion speed and self
Velocity of rotation；Obtain the acceleration of motion of the current kinetic trend of the display view angle of the engineering model；The acceleration of motion
Including：Mass motion acceleration and self rotation acceleration；Wherein, the mass motion trend includes：The mass motion speed
Degree and the mass motion acceleration；The self rotation trend includes：The self velocity of rotation and the self rotation add
Speed.
Further, described to include by the partial data load of the engineering model：Load the part of the engineering model
Outline data in data；After outline data loaded in the partial data of the engineering model, the engineering is loaded
Other data in the partial data of model.
Second aspect, an embodiment of the present invention provides a kind of image data loading device, described device includes：Obtain mould
Block, determining module and load-on module；The acquisition module becomes for obtaining the current kinetic of display view angle of current engineering model
Gesture；The determining module determines that the display view angle reaches after moving preset duration according to the current kinetic trend
The first seat in the plane；The load-on module, for being determined according to picture to be shown needed for accessibility first seat in the plane
The partial data of the engineering model of loaded and displayed is needed, and the partial data of the engineering model is loaded.
Further, the determining module includes：First positioning unit and the first calculation unit；First positioning is single
Member, the initial coordinate for obtaining the display view angle；The first calculation unit, for according to the initial coordinate and described
The mass motion trend of current kinetic trend determines the display view angle when default according to current kinetic trend movement
First coordinate of accessibility first seat in the plane after length.
Further, the determining module further includes：Second positioning unit and the second calculation unit；Second positioning is single
Member, the initial angle for obtaining the display view angle；The second calculation unit, for according to the initial angle and described
The self rotation trend of current kinetic trend determines the display view angle when default according to current kinetic trend movement
The first angle of accessibility first seat in the plane after length.
Further, the acquisition module includes：First obtains unit and the second obtaining unit；Described first obtains list
Member, the movement velocity of the current kinetic trend of the display view angle for obtaining the engineering model；The movement velocity includes：It is whole
Speed of moving body and self velocity of rotation；Second obtaining unit, the display view angle for obtaining the engineering model are worked as
The acceleration of motion of preceding movement tendency；The acceleration of motion includes：Mass motion acceleration and self rotation acceleration；Its
In, the mass motion trend includes：The mass motion speed and the mass motion acceleration；The self rotation trend
Including：The self velocity of rotation and the self rotation acceleration.
Further, the load-on module includes：First loading unit and the second loading unit；First load is single
Member, the outline data in partial data for loading the engineering model；Second loading unit, in the engineering
After outline data loaded in the partial data of model, other data in the partial data of the engineering model are loaded.
The advantageous effect of the embodiment of the present invention is：It is described an embodiment of the present invention provides a kind of image data loading method
Method includes：Obtain the current kinetic trend of the display view angle of current engineering model；Determine the display view angle according to institute
It states current kinetic trend and moves accessibility first seat in the plane after preset duration；It is shown according to required for accessibility first seat in the plane
The picture shown adds the partial data of the engineering model to determine to need the partial data of the engineering model of loaded and displayed
It carries.The mode of the partial data of the pre-loaded engineering model of selectivity in this way, effectively avoids to engineering model
Data completely load this data load mode for excessively taking and largely occupying memory resource.Meanwhile because targetedly
Limited partial data is loaded, user need not wait for long time, image to show that picture will not occur significantly
Interim card.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of flow chart for image data load that second embodiment of the invention provides；
Fig. 2 shows a kind of module diagrams for image data loading device that third embodiment of the invention provides；
Fig. 3 shows that a kind of module of the determining module for image data loading device that third embodiment of the invention provides is shown
It is intended to；
Fig. 4 shows that a kind of module of the acquisition module for image data loading device that third embodiment of the invention provides is shown
It is intended to；
Fig. 5 shows that a kind of module of the load-on module for image data loading device that third embodiment of the invention provides is shown
It is intended to.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
First embodiment
First embodiment of the invention provides a kind of embedded device, and told embedded device, which is operation, operating system
Computer equipment, optionally, the embedded device use large-scale to be usually high performance PC, work station or minicomputer
Database Systems, such as ORACLE, SYBASE, InfORMix, SQL Server or other types of database.The embedded equipment
Upper operation has operating system, the operating system, is macOS, IOS, Windows and Linux optionally.The operating system
There are various application software, such as music player, map software or Mobile banking etc..
Second embodiment
Referring to Fig. 1, second embodiment of the invention provides a kind of image data loading method, set applied to embedded
It is standby, the method includes：Step S100, step S200, step S300 and step S400.
Step S100：Obtain the current kinetic trend of the display view angle of current engineering model.
The engineering model, optionally, to build 3D digital picture.The display view angle vivid can be envisioned as at this
Build the camera of some position in 3D digital picture.Which part that the display view angle can capture in engineering model
It is to have the coordinate of the display view angle i.e. the direction of position and the display view angle to be determined.It can be understood as described
Engineering model is a three-dimensional object construction, and the display view angle is a camera, the position of the camera and camera lens
Direction, determine which picture the camera can capture.
Step S200：Determine that the display view angle reaches after moving preset duration according to the current kinetic trend
The first seat in the plane.
Mentioned seat in the plane is to contain the position of the display view angle and believe towards the two features of angle among the above
The set of breath, a seat in the plane have determined that the display view angle can capture the data of which of engineering model part.
Step S200 includes：Step S210 and step S220.
Step S210：Obtain the initial coordinate of the display view angle；
The initial coordinate characterizes position of the display view angle when this method is executed in the engineering model.
Step S220：It is determined according to the mass motion trend of the initial coordinate and the current kinetic trend described aobvious
Show the first coordinate of visual angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend.
According to movement tendency, the position that the display view angle fixes duration one is calculated, such operation cash compares
It is existing, such as location aware and speed and acceleration, it can calculate one by simple physics or mathematical operation
The position to be reached after duration.In the present embodiment, no longer to specific calculating process to do tired state more.
In step S200, further include：Step S230 and step S240.
Step S230：Obtain the initial angle of the display view angle；
Step S240：It is determined according to the self rotation trend of the initial angle and the current kinetic trend described aobvious
Show the first angle of visual angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend.
Determine that the first seat in the plane of the display view angle needs to load the data of which part in addition to there is the display view angle
Position, that is, coordinate is also determined by the angle of the display view angle, such as behind one position of display view angle arrival, display is regarded
Angle is imagined as the camera of material objectization, which needs to be directed at a direction, the direction, that is, display view angle in the position
Angle.After the initial angle and the self rotation trend that record the display view angle, pass through simple physics or mathematical operation
The direction when display view angle reaches the first seat in the plane after the preset duration, i.e. first angle can be calculated.It is above-mentioned
Calculating process very simply with it is existing, do not do that repetition is tired to be stated in the present embodiment to specific calculating process, explain this method emphatically
Execution flow.
Step S200 continues to execute step S300 after being finished.
Step S300：It determines to need loaded and displayed according to picture to be shown needed for accessibility first seat in the plane
Engineering model partial data, and by the partial data of the engineering model load.
After the display view angle reaches the first seat in the plane, the display view angle is determined according to first seat in the plane described
The certain parts for the engineering model that display view angle is aligned, it is then corresponding to load these data, i.e., the part of the described engineering model
Data.
Wherein step S100 includes：Step S110 and step S120.
Step S110：Obtain the movement velocity of the current kinetic trend of the display view angle of the engineering model；The movement
Speed includes：Mass motion speed and self velocity of rotation.
The movement tendency of the display view angle decides the display view angle after a fixation duration with what position and He Jiao
Degree or towards the data for needing to read which part in the determination engineering model.At this point, obtaining the whole of the display view angle
Speed of moving body is necessary information for determining the first coordinate of the first seat in the plane.Likewise, obtaining oneself of the display view angle
Body velocity of rotation is necessary information for determining the first angle of the first seat in the plane
Step S120：Obtain the acceleration of motion of the current kinetic trend of the display view angle of the engineering model；The fortune
Dynamic acceleration includes：Mass motion acceleration and self rotation acceleration.
Wherein, the mass motion trend includes：The mass motion speed and the mass motion acceleration；It is described from
Body rotates trend：The self velocity of rotation and the self rotation acceleration.
Judgement for movement tendency, if current speed is relied on, for most of scenes, count in this way
It is obtaining the result is that be grossly inaccurate, at this time, it may be necessary to collect the mass motion acceleration of the display view angle and self
Velocity of rotation.By the mass motion speed and mass motion acceleration, can determine described after the preset duration
First coordinate of the first seat in the plane that display view angle reaches, i.e. position.By the self velocity of rotation and self rotation acceleration,
It can determine the first angle for the first seat in the plane that the display view angle reaches after the preset duration, i.e., the described display view angle
The direction of court of institute.
In step S300, including：Step S310 and step S320.
Step S310：Load the outline data in the partial data of the engineering model.
The outline data is the letter for characterizing the features such as edge or the profile of geometry in the engineering model
Breath.
Step S320：After outline data loaded in the partial data of the engineering model, the engineering is loaded
Other data in the partial data of model.
Load for any data is usually all to need the regular hour, when data volume is larger, if loaded successively
It can then allow the time that user waits for longer, if the partial data of required load is centainly divided at this time, or perhaps it is preferential
The division of grade, the data for this type for making demand high are first loaded display, then can effectively improve the experience of user.Such as
The partial data of required load in above-mentioned engineering model, the part are some region of pattern number in the engineering model
According to for showing the apparent graphic feature information such as profile information in the load partial data, allowing user in equal pending datas load
When finishing can first preview there was only the such one simple but people can be allowed to understand whole rough information of graph outline.Then
It is further continued for other described data of load, after other data loadeds, the partial data loaded.
It, can also will be by the partial data in the engineering meanwhile when determining the partial data that needs load
Model data in model corresponding to close region is loaded.Because the display view angle is it is possible that movement tendency is dashed forward
Become, the corresponding model data of the partial data close region is also loaded, can to transport when the display view angle
When dynamic Long-term change trend, the data for needing to load can be quickly read.
3rd embodiment
Referring to Fig. 2, an embodiment of the present invention provides a kind of image data loading device 100, described device includes：It obtains
Module 110, determining module 120 and load-on module 130.
The acquisition module 110, the current kinetic trend of the display view angle for obtaining current engineering model.
The determining module 120 determines that the display view angle is moving preset duration according to the current kinetic trend
Accessibility first seat in the plane afterwards.
The load-on module 130, for being determined according to picture to be shown needed for accessibility first seat in the plane
The partial data of the engineering model of loaded and displayed is needed, and the partial data of the engineering model is loaded.
Referring to Fig. 3, the determining module 120 includes：First positioning unit 121 and first calculates unit 122.
First positioning unit 121, the initial coordinate for obtaining the display view angle.
The first calculation unit 122, for the mass motion according to the initial coordinate and the current kinetic trend
Trend determines the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend
First coordinate.
In addition, the determining module 120 further includes：Second positioning unit 123 and second calculates unit 124.
Second positioning unit 123, the initial angle for obtaining the display view angle.
The second calculation unit 124, for the self rotation according to the initial angle and the current kinetic trend
Trend determines the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend
First angle.
Referring to Fig. 4, the acquisition module 110 includes：First obtains unit 111 and the second obtaining unit 112.
The first obtains unit 111, the fortune of the current kinetic trend of the display view angle for obtaining the engineering model
Dynamic speed；The movement velocity includes：Mass motion speed and self velocity of rotation.
Second obtaining unit 112, the fortune of the current kinetic trend of the display view angle for obtaining the engineering model
Dynamic acceleration；The acceleration of motion includes：Mass motion acceleration and self rotation acceleration.
Wherein, the mass motion trend includes：The mass motion speed and the mass motion acceleration；It is described from
Body rotates trend：The self velocity of rotation and the self rotation acceleration.
Referring to Fig. 5, the load-on module 130 includes：First loading unit 131 and the second loading unit 132.
First loading unit 131, the outline data in partial data for loading the engineering model.Described
Two loading units 132 load the engineering after the outline data loaded in the partial data of the engineering model
Other data in the partial data of model.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) execute all or part of step of each embodiment this method of the present invention.And
Memory above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic disc or CD.
In conclusion the advantageous effect of the embodiment of the present invention is：An embodiment of the present invention provides a kind of loads of image data
Method, the method includes：Obtain the current kinetic trend of the display view angle of current engineering model；Determine the display view angle
Accessibility first seat in the plane after moving preset duration according to the current kinetic trend；According to accessibility first seat in the plane
Required picture to be shown determines to need the partial data of the engineering model of loaded and displayed, and by the portion of the engineering model
Divided data loads.The mode of the partial data of the pre-loaded engineering model of selectivity in this way, effectively avoids pair
Engineering model data completely loads this data load mode for excessively taking and largely occupying memory resource.Meanwhile because
Targetedly limited partial data is loaded, user need not wait for long time, image to show that picture will not go out
Now apparent interim card.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter are under
Similar terms are indicated in the attached drawing in face, therefore, once being defined in a certain Xiang Yi attached drawing, are not then needed in subsequent attached drawing
It is further defined and explained.
Claims (10)
1. a kind of image data loading method, which is characterized in that the method includes：
Obtain the current kinetic trend of the display view angle of current engineering model；
Determine the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend；
Determine to need the engineering model of loaded and displayed according to picture to be shown needed for accessibility first seat in the plane
Partial data, and the partial data of the engineering model is loaded.
2. image data loading method according to claim 1, which is characterized in that described to determine that the display view angle exists
Accessibility first seat in the plane includes after moving preset duration according to the current kinetic trend：
Obtain the initial coordinate of the display view angle；
Determine the display view angle in basis according to the mass motion trend of the initial coordinate and the current kinetic trend
First coordinate of accessibility first seat in the plane after the current kinetic trend movement preset duration.
3. image data loading method according to claim 2, which is characterized in that described to determine that the display view angle exists
Accessibility first seat in the plane further includes after moving preset duration according to the current kinetic trend：
Obtain the initial angle of the display view angle；
Determine the display view angle in basis according to the self rotation trend of the initial angle and the current kinetic trend
The first angle of accessibility first seat in the plane after the current kinetic trend movement preset duration.
4. image data loading method according to claim 3, which is characterized in that described to obtain the aobvious of current engineering model
Show that the current kinetic trend at visual angle includes：
Obtain the movement velocity of the current kinetic trend of the display view angle of the engineering model；The movement velocity includes：It is whole
Movement velocity and self velocity of rotation；
Obtain the acceleration of motion of the current kinetic trend of the display view angle of the engineering model；The acceleration of motion includes：
Mass motion acceleration and self rotation acceleration；
Wherein, the mass motion trend includes：The mass motion speed and the mass motion acceleration；Described self turn
Dynamic trend includes：The self velocity of rotation and the self rotation acceleration.
5. image data loading method according to claim 4, which is characterized in that the part by the engineering model
Data load：
Load the outline data in the partial data of the engineering model；
After outline data loaded in the partial data of the engineering model, the partial data of the engineering model is loaded
In other data.
6. a kind of image data loading device, which is characterized in that described device includes：Obtain module, determining module and load mould
Block；
The acquisition module, the current kinetic trend of the display view angle for obtaining current engineering model；
The determining module determines that the display view angle reaches after moving preset duration according to the current kinetic trend
The first seat in the plane；
The load-on module, for determining to need to load according to picture to be shown needed for accessibility first seat in the plane
The partial data of the engineering model of display, and the partial data of the engineering model is loaded.
7. image data loading device according to claim 6, which is characterized in that the determining module includes：First positioning
Unit and the first calculation unit；
First positioning unit, the initial coordinate for obtaining the display view angle；
The first calculation unit, for being determined according to the mass motion trend of the initial coordinate and the current kinetic trend
Go out the first coordinate of the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend.
8. image data loading device according to claim 7, which is characterized in that the determining module further includes：Second
Positioning unit and the second calculation unit；
Second positioning unit, the initial angle for obtaining the display view angle；
The second calculation unit, for being determined according to the self rotation trend of the initial angle and the current kinetic trend
Go out the first angle of the display view angle accessibility first seat in the plane after moving preset duration according to the current kinetic trend.
9. image data loading device according to claim 8, which is characterized in that the acquisition module includes：First obtains
Obtain unit and the second obtaining unit；
The first obtains unit, the movement velocity of the current kinetic trend of the display view angle for obtaining the engineering model；
The movement velocity includes：Mass motion speed and self velocity of rotation；
The movement of second obtaining unit, the current kinetic trend of the display view angle for obtaining the engineering model accelerates
Degree；The acceleration of motion includes：Mass motion acceleration and self rotation acceleration；
Wherein, the mass motion trend includes：The mass motion speed and the mass motion acceleration；Described self turn
Dynamic trend includes：The self velocity of rotation and the self rotation acceleration.
10. image data loading device according to claim 9, which is characterized in that the load-on module includes：First adds
Carrier unit and the second loading unit；
First loading unit, the outline data in partial data for loading the engineering model；
Second loading unit, after the outline data loaded in the partial data of the engineering model, load
Other data in the partial data of the engineering model.
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