CN101702166A - Quick online virtual scene construction method for online exposition - Google Patents
Quick online virtual scene construction method for online exposition Download PDFInfo
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- CN101702166A CN101702166A CN200910198143A CN200910198143A CN101702166A CN 101702166 A CN101702166 A CN 101702166A CN 200910198143 A CN200910198143 A CN 200910198143A CN 200910198143 A CN200910198143 A CN 200910198143A CN 101702166 A CN101702166 A CN 101702166A
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Abstract
The invention relates to a quick online virtual scene construction method for online exposition, which comprises the following steps: (1) server side step: providing servers accessed into the Internet, wherein the servers include a web page server, a database server, a file server and a streaming media server which are respectively used for providing web page access, database indexes, resource downloading and streaming media data transmission; and (2) client side steps: submitting resource requests to the servers, downloading the resources according to the returned results, realizing the purposes of accessing the web page of a virtual exposition in the web page server, browsing, dragging and constructing the three-dimensional scene on the page at a client terminal and accessing and operating the streaming media data, creating three-dimensional elements according to the downloaded resource, and updating the three-dimensional elements to the virtual scene and rendering in real time. The invention can enable clients to drag and drop and construct the virtual scene in an online mode, solves the problems of single and independent construction method, lower efficiency and the like of the prior online exposition, can realize the quickly modularized construction of the exposition, and can quickly announce the exposition to be shared by other client terminals.
Description
Technical field
The invention belongs to the network virtual technical field, particularly a kind of virtual scene fast construction method that is used for the online browsing meeting.
Background technology
In current information society, review industry development is swift and violent, and it provides the stage of a displaying and exchange message for all over the world people.But traditional museum/exhibition center/science and technology center adopts the material object display mode, and this real material object display mode all has limitation in various aspects such as time, space, displaying object, users.
Along with computer technology and development of internet technology, virtual fair technology is slowly solving this difficult problem, will show that object carries out digitizing, can extend showpiece in kind on time, space, content.At present, the U.S. museum overwhelming majority has added international the Internet, and Japan also has nearly hundred museums that the homepage of oneself has been arranged on international the Internet, and some museums, Europe are online successively also.In China a lot of tame museum online are arranged also, but content rests on simple picture and character introduction mostly.The online displaying in these museums is mainly based on still image, and the part museum has adopted technology such as panorama sketch, Flash animation, virtual reality.But generally speaking, effect is barely satisfactory, and for the online spectators that come to visit, museum does not have interactive, let alone the interactivity between spectators and the museum, between spectators and the spectators, and the whole structure of displaying is general.
And, no matter take the online browsing meeting of Web page type or three-dimensional museum formula for organizer and exhibition Fang Eryan, all need to ask the professional to develop, and expend a large amount of time and efforts.For the online browsing meeting of Web page type, the organizer will ask website of webpage development staff development, deposits a large amount of exhibition information in the website, after finishing the duration of an exhibition, this website has not just had use value, and display form is single dull, and forms such as literal, static images or Flash animation are only arranged.For the formula online browsing meeting of conventional three-dimensional museum, then need more energy to come modeling, compose material etc., upload to problems such as also there being the data volume size on the net.
Summary of the invention
The objective of the invention is to, a kind of online fast construction method of virtual scene that is used for the online browsing meeting that provides, the user can realize building of three-dimensional individual character museum fast by simple operations.
A kind of online fast construction method of virtual scene that is used for the online browsing meeting may further comprise the steps:
1) server end step, the server that inserts the internet is provided, described server comprises web page server, database server, archive server and streaming media server, and being respectively applied for provides web page access, database index, resource downloading and transmission of flow media data;
2) user side step, the user terminal that inserts the internet is provided, submit resource request to server, according to the return results downloaded resources, realization is to the visit of the virtual exhibition shop webpage in the described web page server, and three-dimensional scenic on the page of user terminal browse, drag build, the streaming video data access operation, and create three-dimensional element according to downloaded resources, be updated to virtual scene and carry out real-time rendering.
Further, the web page access that provides of described web page server is: online browse and page application that user's webpage is provided;
The database index that described database server provides is: the index to three-dimensional element resource, scene and user data is provided in the dynamic build process;
The described resource downloading that described archive server provides is: the resource access and the transmission of long-range element file are provided, and the element file adopts distributed storage;
The Streaming Media that described streaming media server provides is transmitted as: request, the transmission of convection type media data in the three-dimensional scenic are provided.
Further, described user side step 2) in, comprise that user's ole item OLE detects step.
Further, described user's ole item OLE detection step specifically may further comprise the steps:
1) initializing variable, the circulation beginning;
2) obtain mouse position, obtain and judge the district; Mouse position is meant the position of mouse pointer on the page, and this judgement district can be certain zone in the page;
3) whether judge mouse in this zone, if, enter step 4), if not, change step 2);
4) judge whether left mouse button presses, if, enter step 5), if not, change step 6);
5) storage mouse sign is changeed step 2);
6) judge whether the mouse sign is true, if, enter step 7), if not, change step 2);
7) produce ole item OLE;
8) judge whether pick up object is resource identifier, if, enter step 9), if not, change step 10);
9) drag and drop new element changes step 11);
10) the existing element of drag and drop page scene;
11) obtain the mouse mobile location information, carry out the coordinate space conversion by mobile location information;
12) the coordinate space transforming object is reorientated;
13) the new coordinate position of storage object;
14) refresh in the page the corresponding zone of playing up, change step 2).
Further, in described step 2) in, in user terminal, the resource of finishing download is set up the local resource index, judge by the local resource index whether element is downloaded, newly add the element of scene to for each, only download once in the whole cycle of page three-dimensional scenic operation, the repeating of element object created by obtaining downloaded object in the local resource concordance list.
Further, described step 2) the middle dynamic creation technology that adopts, specifically may further comprise the steps:
20) user terminal response user element request to create;
21) obtain element file URL;
22) from described server, download the element file;
23) user terminal reads element type, point, line, surface descriptor, painted information, interaction scripts information;
24) according to reading information, create Object node, storage allocation space and access interface;
25) graphics engine in conjunction with volume coordinate description, current view point coordinate system transformation, is played up district's rendered object according to object geometric properties and external appearance characteristic;
26) interactive engine is created corresponding watcher thread according to the object script information, handles interactive information; ,
27) establishment is finished, and feeds back to main-thread object memory headroom address, object identifier, thread identifier information, introduces thread pool and manages.
The present invention constructs the virtual fair scene of 3D true to nature on the internet, and possesses stronger interaction characteristic, can make the online drag and drop of user build virtual scene, problem such as solved that existing online browsing meeting building method is single, independence, efficient are lower, the quick modularization that can realize venue is set up and is issued as fast the Web3D form and shares for other user terminals.
Further specify the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is used for the network architecture synoptic diagram that the online fast construction method of the virtual scene embodiment of online browsing meeting adopts for the present invention;
Fig. 2 is used for the online fast construction method of the virtual scene embodiment element drag and drop process flow diagram of online browsing meeting for the present invention;
Fig. 3 is used for the process flow diagram of the online fast construction method of the virtual scene embodiment dynmaic establishing virtual element of online browsing meeting for the present invention;
Embodiment
A kind of online fast construction method of virtual scene that is used for the online browsing meeting, the present invention carries out under the network architecture as shown in Figure 1, may further comprise the steps:
1) server end step, the server that inserts the internet can be provided by the side of holding of online browsing meeting, described server is as data center, comprise webpage (WEB) server, database server, archive server and streaming media server, being respectively applied for provides webpage (WEB) visit, database index, resource downloading and transmission of flow media data;
Wherein, the web page access that provides of described web page server is: online browse and page application that user's webpage is provided;
The database index that described database server provides is: the index to three-dimensional element resource, scene and user data is provided in the dynamic build process; To optimize network data transmission, the element file adopts distributed storage, and obtaining of element file needs through database index;
The described resource downloading that described archive server provides is: the resource access and the transmission service of long-range element file are provided;
The Streaming Media that described streaming media server provides is transmitted as: request, the transmission of convection type media data in the three-dimensional scenic are provided.
2) user side step, user side can be the city, place, the side of holding of online browsing meeting or the user terminal that other city provides, user terminal is by the gateway of residential quarter, the wireless receiving and dispatching base station, multiple modes such as school of government of enterprise switch are connected to public internet, by submitting the domain name mapping application to name server, obtain described server address, by submit the request of resource to server, according to the return results downloaded resources, realization is to the visit of the virtual exhibition shop webpage in the described web page server, and the three-dimensional scenic on the page of user terminal is browsed, drag and build, operations such as streaming video data access, and create three-dimensional element according to downloaded resources, be updated to virtual scene and carry out real-time rendering.
Wherein, described user side step 2) in, comprising that also user's ole item OLE detects step, user terminal detects ole item OLE, judges whether user's input equipments such as mouse are judging that the district produces ole item OLE.As shown in Figure 2, specifically may further comprise the steps:
1) initializing variable, the circulation beginning;
2) obtain mouse position, obtain and judge the district; Mouse position is meant the position of mouse pointer on the page, and this judgement district can be certain zone in the page;
3) whether judge mouse in this zone, if, enter step 4), if not, change step 2);
4) judge whether left mouse button presses, if, enter step 5), if not, change step 6);
5) storage mouse sign is changeed step 2); The mouse sign is to be used for sign whether to produce ole item OLE, for true (True) expression produces ole item OLE, for false (False) expression does not produce broadcast event; The setting of mouse ident value can be by information such as clicking, move because user terminal is set its value;
6) judge whether the mouse sign is true (True), if, enter step 7), if not, change step 2);
7) produce ole item OLE;
8) judge whether pick up object is resource identifier, if, enter step 9), if not, change step 10); Resource identifier is used for the essential information of identifying resource, as title, corresponding server link information etc.;
9) drag and drop new element changes step 11); Be specially: obtain resource identifier (ID), send the request downloaded resources, be loaded into scene after the download, change step 11) to server, after step in position and play up;
10) the existing element of drag and drop page scene;
11) obtain the mouse mobile location information, carry out the coordinate space conversion by mobile location information;
12) the coordinate space transforming object is reorientated;
13) the new coordinate position of storage object;
14) refresh in the page the corresponding zone of playing up, change step 2).
The existing element of described step 10) drag and drop page scene can adopt existing drag and drop technology to realize.As detect thread and play up areas captured at the d engine of appointment and pick up incident, and obtain the screen coordinate of picking up a little, by screen space coordinates is the three-dimensional coordinate point that transfers in the current view point coordinate system, and be that starting point is done the ray collision calculation in screen with this point, obtain the colliding object tabulation, filter list also obtains the drag and drop object of appointment, catch the moving coordinate of mouse when picking up state (left button is pinned state) simultaneously, behind coordinate system transformation, set the new position of object by space coordinate transformation, realize moving of drag and drop object.
Further, as online network optimization measure of building, in described step 2) in, in user terminal, the resource of finishing download is set up the local resource index, judge by the local resource index whether element is downloaded.Promptly newly add the element of scene to, in the whole cycle of page three-dimensional scenic operation, only download once, the repeating to create and to avoid frequently taking of network thus by obtaining downloaded object in the local resource concordance list of element object for each.
Among the present invention, the request of creating virtual element is divided into two classes by request source, and a class is a system request, promptly formulates good establishment rule at the beginning of program design, creates such as the visual human in the artificial intelligence system, can generate at random also and can regularly generate.Another kind of is by user's request to create initiatively, such as dynamically building scene, after the drag and drop judgement, generates the element of appointment, and is positioned the position of user's indication.
Adopt the dynamic creation technology in the present embodiment, promptly create the object of specified class when operation, this technology is used in (MFC, Microsoft Foundation Classes) in a large number in the microsoft foundation class storehouse.As the frame window object, look object and document object etc., all need create dynamically by the document template class object.Dynmaic establishing virtual element flow process is as shown in Figure 3, and is specific as follows:
20) user terminal response element request to create;
21) obtain element file URL (URL(uniform resource locator) also claims web page address);
22) from described server, download the element file;
23) user terminal reads element type, point, line, surface descriptor, painted information, interaction scripts information;
24) according to reading information, create Object node, storage allocation space and access interface;
25) graphics engine in conjunction with volume coordinate description, current view point coordinate system transformation, is played up district's rendered object according to object geometric properties and external appearance characteristic;
26) interactive engine is created corresponding watcher thread according to the object script information, handles interactive information;
27) establishment is finished, and feeds back to main-thread object memory headroom address, object identifier (ID), thread identifier information such as (ID), introduces thread pool and manages.
Also adopt 3-D technology on the internet (Web3D) in the present embodiment, it is virtual reality technology (Virtual Reality) way of realization on the internet.Dynamic creation situation elements under the Web3D category is meant, in the process of page virtual scene real time execution, the virtual objects of regular or establishment specified configuration information at random with and corresponding interactive interface, and the real-time zone of playing up that is presented at the page, receive the process of user's interactive information by interactive interface.
Adopt 3DVIA Virtools plug-in unit in the present embodiment, a kind of as in the Web3D plug-in unit of this plug-in unit, it is by the Web3D plug-in unit of the unique recommendation of Shanghai World's Fair experience type museum in 2010.The Virtools platform also provides two kinds of programmable user expansions except that more than 500 Building Block that self possessed realizes that most interactive operation requires, a kind of be the Virtools script (Virtools Script Language, VSL); Another kind then is SDK (Software Development Kit) (SDK) function library mode.Wherein adopt the dynamic link library (dll) of SDK function exploitation only to be used for player (Stand alone Player), also need its multi-user's end-server (MultiUser-Server) module support for Web3D.Propagate requirement for satisfying the internet preferably, the present invention adopted self with structure module (Buil ding Block) and the mode of VSL combination, write the conversion of light and box intersection algorithm (Ray-Box Intersection) and minimum planes volume coordinate by VSL in conjunction with the function library of Virtools, realized dragging the mechanism of building element.
The present invention adopts the network data of Virtools to obtain (Get WebData), network download (Web Download), object loads (Object Load) three and makes up module (Building Block), and under the network information service (IIS6.0) platform, set up the site for service platform, data query, retrieval, the download service on backstage are provided, have realized the index and the dynamic creation of object.
The present invention adopts application programming interfaces (API) function based on the Win32 message mechanism, realizes picking up the three dimensions object and pulling moving to given position in conjunction with intersection algorithm (Ray-BoxIntersection) and planimetric coordinates conversion recently.By making up the search index platform, the online technology of building of dragging is applied in the online browsing meeting, make the user voluntarily venue build, can strengthen the interactive of virtual scene, the interest of lifting exhibition.
As the extension of entity fair, the online browsing meeting that the present invention relates to will adopt the Web3D technology to build all kinds of true to nature, interactive stronger virtual museums in a large number, online spectators be stayed indoors just can visit fair in any one jiao of visit in the world.A kind of as the Web3D interactive mode, dynamically the online technology of building can be by user drag and drop three-dimensional scenic element or material voluntarily, and dynamic construction goes out personalized virtual scene, even makes up the virtual community of oneself.Have more interactive, novelty and interest,, can make spectators in the navigation process of interest, understand the fair content by designing corresponding interaction mechanism.
Above-described embodiment only is used to illustrate technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implements according to this, can not only limit claim of the present invention with present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (6)
1. online fast construction method of virtual scene that is used for the online browsing meeting is characterized in that may further comprise the steps:
1) server end step, the server that inserts the internet is provided, described server comprises web page server, database server, archive server and streaming media server, and being respectively applied for provides web page access, database index, resource downloading and transmission of flow media data;
2) user side step, the user terminal that inserts the internet is provided, submit resource request to server, according to the return results downloaded resources, realization is to the visit of the virtual exhibition shop webpage in the described web page server, and three-dimensional scenic on the page of user terminal browse, drag build, the streaming video data access operation, and create three-dimensional element according to downloaded resources, be updated to virtual scene and carry out real-time rendering.
2. the online fast construction method of virtual scene that is used for the online browsing meeting according to claim 1 is characterized in that:
The web page access that described web page server provides is: online browse and page application that user's webpage is provided;
The database index that described database server provides is: the index to three-dimensional element resource, scene and user data is provided in the dynamic build process;
The described resource downloading that described archive server provides is: the resource access and the transmission of long-range element file are provided, and the element file adopts distributed storage;
The Streaming Media that described streaming media server provides is transmitted as: request, the transmission of convection type media data in the three-dimensional scenic are provided.
3. the online fast construction method of virtual scene that is used for the online browsing meeting according to claim 1 and 2 is characterized in that: described user side step 2), comprise that user's ole item OLE detects step.
4. the online fast construction method of virtual scene that is used for the online browsing meeting according to claim 3 is characterized in that: described user's ole item OLE detects step and specifically may further comprise the steps:
1) initializing variable, the circulation beginning;
2) obtain mouse position, obtain and judge the district; Mouse position is meant the position of mouse pointer on the page, and this judgement district can be certain zone in the page;
3) whether judge mouse in this zone, if, enter step 4), if not, change step 2);
4) judge whether left mouse button presses, if, enter step 5), if not, change step 6);
5) storage mouse sign is changeed step 2);
6) judge whether the mouse sign is true, if, enter step 7), if not, change step 2);
7) produce ole item OLE;
8) judge whether pick up object is resource identifier, if, enter step 9), if not, change step 10);
9) drag and drop new element changes step 11);
10) the existing element of drag and drop page scene;
11) obtain the mouse mobile location information, carry out the coordinate space conversion by mobile location information;
12) the coordinate space transforming object is reorientated;
13) the new coordinate position of storage object;
14) refresh in the page the corresponding zone of playing up, change step 2).
5. the online fast construction method of virtual scene that is used for the online browsing meeting according to claim 4 is characterized in that:
In described step 2) in, in user terminal, the resource of finishing download is set up the local resource index, judge by the local resource index whether element is downloaded, newly add the element of scene to for each, only download once in the whole cycle of page three-dimensional scenic operation, the repeating of element object created by obtaining downloaded object in the local resource concordance list.
6. the online fast construction method of virtual scene that is used for the online browsing meeting according to claim 5 is characterized in that:
Described step 2) adopt the dynamic creation technology in, specifically may further comprise the steps:
20) user terminal response user element request to create;
21) obtain element file URL;
22) from described server, download the element file;
23) user terminal reads element type, point, line, surface descriptor, painted information, interaction scripts information;
24) according to reading information, create Object node, storage allocation space and access interface;
25) graphics engine in conjunction with volume coordinate description, current view point coordinate system transformation, is played up district's rendered object according to object geometric properties and external appearance characteristic;
26) interactive engine is created corresponding watcher thread according to the object script information, handles interactive information; ,
27) establishment is finished, and feeds back to main-thread object memory headroom address, object identifier, thread identifier information, introduces thread pool and manages.
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| CN200910198143A CN101702166A (en) | 2009-11-03 | 2009-11-03 | Quick online virtual scene construction method for online exposition |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292707A (en) * | 2011-05-11 | 2011-12-21 | 华为终端有限公司 | Method and system for implementing augmented reality applications |
| CN104933753A (en) * | 2015-07-09 | 2015-09-23 | 上海苗实信息科技有限公司 | Three-dimensional virtual roaming scene construction platform based on Internet |
| CN105278933A (en) * | 2014-06-23 | 2016-01-27 | 广州大剧院管理有限公司 | 3D virtual performance venue system |
| CN106126280A (en) * | 2016-06-17 | 2016-11-16 | 山东省地质测绘院 | A kind of measuring method of scene data |
| CN106372260A (en) * | 2016-10-25 | 2017-02-01 | 广州卓能信息科技有限公司 | Method, device and system for information exchange |
| CN109033111A (en) * | 2017-06-09 | 2018-12-18 | 河北卓达建材研究院有限公司 | A kind of building browsing method based on GIS-Geographic Information System |
| CN109657185A (en) * | 2018-04-26 | 2019-04-19 | 福建优合创智教育发展有限公司 | Virtual scene sharing method and system in a kind of reality scene |
| CN113052979A (en) * | 2020-12-31 | 2021-06-29 | 视伴科技(北京)有限公司 | Method and device for converting virtual elements in virtual venue |
| CN113628323A (en) * | 2021-07-30 | 2021-11-09 | 广州欧科信息技术股份有限公司 | Method for quickly constructing digital exhibition file and intelligent terminal |
| CN113706681A (en) * | 2021-07-30 | 2021-11-26 | 华为技术有限公司 | Image processing method and electronic device |
| CN113923246A (en) * | 2021-09-13 | 2022-01-11 | 深圳市史夫特安全技术事务有限公司 | Immersive online video scene experience method and device |
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- 2009-11-03 CN CN200910198143A patent/CN101702166A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102292707A (en) * | 2011-05-11 | 2011-12-21 | 华为终端有限公司 | Method and system for implementing augmented reality applications |
| WO2011137764A3 (en) * | 2011-05-11 | 2012-04-19 | 华为终端有限公司 | Method and system for implementing augmented reality applications |
| CN102292707B (en) * | 2011-05-11 | 2014-01-08 | 华为终端有限公司 | Method and system for implementing augmented reality applications |
| US8743146B2 (en) | 2011-05-11 | 2014-06-03 | Huawei Device Co., Ltd. | Method and system for implementing augmented reality application |
| CN105278933A (en) * | 2014-06-23 | 2016-01-27 | 广州大剧院管理有限公司 | 3D virtual performance venue system |
| CN104933753A (en) * | 2015-07-09 | 2015-09-23 | 上海苗实信息科技有限公司 | Three-dimensional virtual roaming scene construction platform based on Internet |
| CN106126280A (en) * | 2016-06-17 | 2016-11-16 | 山东省地质测绘院 | A kind of measuring method of scene data |
| CN106372260A (en) * | 2016-10-25 | 2017-02-01 | 广州卓能信息科技有限公司 | Method, device and system for information exchange |
| CN109033111A (en) * | 2017-06-09 | 2018-12-18 | 河北卓达建材研究院有限公司 | A kind of building browsing method based on GIS-Geographic Information System |
| CN109657185A (en) * | 2018-04-26 | 2019-04-19 | 福建优合创智教育发展有限公司 | Virtual scene sharing method and system in a kind of reality scene |
| CN113052979A (en) * | 2020-12-31 | 2021-06-29 | 视伴科技(北京)有限公司 | Method and device for converting virtual elements in virtual venue |
| CN113628323A (en) * | 2021-07-30 | 2021-11-09 | 广州欧科信息技术股份有限公司 | Method for quickly constructing digital exhibition file and intelligent terminal |
| CN113706681A (en) * | 2021-07-30 | 2021-11-26 | 华为技术有限公司 | Image processing method and electronic device |
| CN113628323B (en) * | 2021-07-30 | 2024-05-31 | 广州欧科信息技术股份有限公司 | Method for quickly constructing digital exhibition file and intelligent terminal |
| CN113923246A (en) * | 2021-09-13 | 2022-01-11 | 深圳市史夫特安全技术事务有限公司 | Immersive online video scene experience method and device |
| CN113923246B (en) * | 2021-09-13 | 2024-05-28 | 深圳市史夫特安全技术事务有限公司 | Method and device for immersive online video scene experience |
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