CN102420839A - Method and system for realizing browse of 3D (three-dimensional) model as well as server - Google Patents

Abstract

The invention discloses a method and system for realizing browse of a 3D (three-dimensional) model as well as a server. The method comprises: the server receives a page access request from a terminal and analyzes a 3D model file from a page required to be accessed; the server determines the precision of the 3D model according to the performances of the terminal; the server obtains a simplified 3D model corresponding to the precision; and the server transmits the parameters of the simplified 3D model to the terminal, so that the terminal can draw the 3D model conveniently. According to the method, system and server disclosed by the invention, a 3D model simplification algorithm is utilized based on a Web 3D principle, thus the 3D model can match multi-screen browse and can also meet the performances of the terminal; and the regulation of the 3D model is carried out according to the performances of the terminal, thus the terminal can display the 3D model in a plug-in unit manner or not, and the defect that the supportability on built-in terminals such as mobile phones and the like is not strong because the interactive browse of the current Web 3D model mainly utilizes a plug-in technique is prevented.

Description

A kind of 3D model browse implementation method, system and server

Technical field

The present invention relates to 3D (three-dimensional) Display Technique field, what relate in particular to a kind of 3D model browses implementation method, system and server.

Background technology

Along with network popularize and people show that to the Internet requirement of business experience improves gradually, traditional Webpage shows and has been difficult to impact and the sensation of shock to bringing on the user psychology that the 3D figure will occupy critical role on the internet.The Web3D technology is a present hot technology, is widely used in various applications such as online displaying, game on line, online interaction.

The smart mobile phone performance is improving gradually; Mobile phone operating system is also perfect constantly; More and more users is got used to through the surfing Internet with cell phone browsing page; And at present the webpage of mobile phone represents and is still the similar graph text information presentation mode with PC, and user experience is relatively poor, needs a kind of brand-new form that represents attract the user.

3D graph technology comparative maturity on PC.But at present the Web3D technology is used and needed plug-in unit and only be used on the PC, and is supportive not strong at built-in terminals such as mobile phones, still fails in built-in terminals such as mobile phone, generally to use.

Summary of the invention

The technical problem that the disclosure will solve provides a kind of implementation method of browsing of 3D model, can support the terminal of different performance.

The disclosure provides a kind of implementation method of browsing of 3D model, comprising:

Server receives the accessing page request of self terminal, from the page of request visit, resolves the 3D model file;

Server is confirmed the precision of 3D model according to the performance at said terminal;

Server obtains the simplification 3D model corresponding with precision;

The parameter that server will be simplified the 3D model sends to the terminal so that terminal drafting 3 D model.

According to an aspect of the present disclosure, server obtains the simplification 3D model corresponding with precision according to 3D model simplification algorithm in this method; Specifically comprise:

Obtain the weight of the tri patch of 3D model;

Confirm to simplify the tri patch quantity that the 3D model comprises according to precision;

Select to simplify the tri patch that the 3D model comprises according to the weight of tri patch.

According to an aspect of the present disclosure, this method also comprises:

In response to user's interactive operation, the terminal is carried out conversion and/or rotation according to the parameter of simplifying the 3D model to the 3D model.

The technical problem that the disclosure will solve provides a kind of 3D model service device, can support the terminal of different performance.

The disclosure provides a kind of 3D model service device, comprising:

The model resolution unit is used to receive the accessing page request of self terminal, from the page of request visit, resolves the 3D model file;

Precision is confirmed the unit, is used for confirming according to the performance at terminal the precision of 3D model;

The simplified model acquiring unit is used to obtain the simplification 3D model corresponding with precision;

The model parameter transmitting element is used for the parameter of simplifying the 3D model is sent to the terminal so that terminal drafting 3 D model.

According to an aspect of the present disclosure, the simplified model acquiring unit comprises:

The weight acquisition module, the weight of the tri patch of acquisition 3D model;

The quantity determination module is confirmed the tri patch quantity that said simplification 3D model comprises according to precision;

Dough sheet is selected module, the tri patch of selecting said simplification 3D model to comprise according to the weight of tri patch.

The disclosure also provides a kind of realization system of browsing of 3D model, comprises above-mentioned server and terminal; This terminal is used to send accessing page request; Reception is from the parameter of the simplification 3D model of server, according to the parameter drafting 3 D model of simplifying the 3D model.

The 3D model that the disclosure provides browse implementation method, system and server, can corresponding simplification 3D model be provided according to terminal capabilities, thereby support the terminal of different performance.

Description of drawings

Fig. 1 illustrates the system schematic of an embodiment of the realization system of browsing of 3D model of the present invention;

Fig. 2 illustrates the flow chart of an embodiment who browses implementation method of 3D model of the present invention;

Fig. 3 illustrates the flow chart of another embodiment that browses implementation method of 3D model of the present invention;

Fig. 4 illustrates the example of 3D model simplification of the present invention;

Fig. 5 illustrates the diagram of a cuboid;

Fig. 6 illustrates the structure chart of an embodiment of 3D model service device of the present invention;

Fig. 7 illustrates the structure chart of another embodiment of 3D model service device of the present invention.

Embodiment

With reference to the accompanying drawings the present invention is more comprehensively described, exemplary embodiment of the present invention wherein is described.

Fig. 1 illustrates the system schematic of an embodiment of the realization system of browsing of 3D model of the present invention.As shown in Figure 1, the realization system of browsing of this embodiment comprises server 11 and various terminals 12.Terminal 12 for example is various portable terminals with different performance such as mobile phone, palmtop PC, PDA or smart mobile phone.Terminal 12 generally is equipped with browser (Browser); Through the page of browser to server 11 request visits; Server 11 is resolved the 3D model file in the page after receiving accessing page request immediately, confirms the precision of 3D model to obtain the simplification 3D model corresponding with the precision at terminal according to the performance at terminal 11; The parameter that to simplify the 3D model then sends to terminal 12, comes out corresponding 3D modeling rendering according to the 3D model parameter according to the data that receive in terminal 12.

Fig. 2 illustrates the flow chart of an embodiment who browses implementation method of 3D model of the present invention.

As shown in Figure 2, in step 202, server receives the accessing page request of self terminal, from the page of request visit, resolves the 3D model file.

Step 204, server are confirmed the precision of 3D model according to the performance at terminal.For example, server is confirmed the precision of 3D model according to the data-handling capacity at the screen resolution at terminal and/or terminal.

Step 206, server obtains the simplification 3D model corresponding with precision.

The parameter that step 208, server will be simplified the 3D model sends to the terminal so that terminal drafting 3 D model.The parameter of simplifying the 3D model is received at the terminal, and the parameter of simplifying the 3D model has comprised the core data of whole 3 all needs of dimension model, and the terminal is according to the parameter drafting 3 D model of receiving.

According to the performance at terminal or the needs of using, can adopt no plug-in unit mode or plug-in unit mode reconstruct 3D model is arranged.For the reconstruct of no plug-in unit mode, mainly through the drawing of programming of html script, its advantage is no plug-in unit, can directly use, but be relatively poor to the complex figure support.For the reconstruct of plug-in unit mode is arranged, for example can call the OpenGL ES that increases income that is directed against the standard of embedded device at present, the whole codes of OpenGL ES are encapsulated in the class, then this type of is added in the Active-X plug-in unit.In OpenGL ES class, can functions such as the playing up of the closing of the initialization flow process of OpenGL ES, rendering pipeline, 3D model, interoperability be encapsulated into respectively in the different functions.

In the foregoing description, support multiple client form, but, can support low configuration client end with the mode that does not need plug-in unit for end terminal for the client of high-end terminal tenaculum 3D graphic plotting.

Traditional approach is at server end exploitation 3D model, need do repeatedly adaptively for different display terminals, and once changes, and need a plurality of terminals be changed simultaneously, and is costly.In embodiment of the present invention, server can obtain the simplified model corresponding with the 3D model according to the performance at terminal, thereby supports the terminal of each different performance, once changes, and benefit from a plurality of terminals.

Fig. 3 illustrates the flow chart of another embodiment that browses implementation method of 3D model of the present invention.

As shown in Figure 3, in step 302, terminal to server sends accessing page request.

Step 304, server parses the 3D model from the page of request visit; Server for example through accessing page request (for example; Http request) the ability relevant information at acquisition terminal (for example in the message; Mobile phone model, browser version number, screen resolution etc.), judge terminal capabilities, confirm the precision of 3D models show according to terminal capabilities; Through the three-dimensional model simplifying algorithm 3D model is simplified, obtained the 3D model of simplifying.To introduce a kind of concrete realization that the 3D model is simplified after a while.

Step 306, server carries out for example HTML basic language encapsulation to the parameter of the 3D model of simplification.

Step 308, Server Transport are simplified the supplemental characteristic of 3D model to the terminal.

Step 310, terminal are resolved the parameter that obtains to simplify the 3D model from the data that receive, carry out the reconstruct of 3D model.

Step 312, user and terminal are carried out alternately, and conversion and/or rotation are carried out to the 3D model in the terminal.

Introduce the example that three-dimensional model simplifying is realized below.

The 3D model is divided into tri patch (triangle gridding), obtains the weight of 3D model tri patch.The weight of tri patch for example is the product of angle and curvature, perhaps the product of factor such as triangle area and curvature.Like this, elongated and tri patch weight low curvature is less, can preferentially be deleted.Can all tri patch on the 3D model be sorted according to its weight from small to large.

Confirm the number of the tri patch that the threedimensional model needs show according to the screen resolution at terminal.For example: certain threedimensional model is made up of 1000 tri patch, confirms only to show preceding 100 triangle griddings according to mobile phone screen resolution.

Select to simplify the tri patch that the 3D model comprises according to the weight of tri patch.According to weight order deletion tri patch from small to large, i.e. triangle collapse operation, usually, a triangle collapse operation can be deleted four triangles, two summits.Repeating deletion action is 100 triangle griddings up to this 3D model simplification.

In the above-described embodiments, through the simplified process method of tri patch (triangle gridding), can simplify processing to the 3D model, it is convenient to realize, has very strong adaptability.

Fig. 4 illustrate the 3D model before handling through 3D model simplification of the present invention with processing after example.Fig. 4 (a) is a 3D model of simplifying the head part before handling, comprises more triangle gridding.Fig. 4 (b) is the 3D model of head part's simplification, and triangle gridding quantity reduces.

Cuboid with the .WRL form is that example is elaborated below.

(1) parsing of server end 3D model file and transmission

The WRL file content of cuboid is following:

“

#VRML?V2.0utf8

#Produced?by?3D?Studio?MAX?VRML97?exporter，Version?9，

Revision?1

#Date：Wed?Nov?0421:21:30?2009

DEF?Box01?Transform?{

translation?0?100?0

children[

Transform{

translation?0?19.83?0

children[

Shape{

appearance?Appearance{

material?Material{

diffuseColor?0.1059?0.6941?0.1059

}

}

geometry?Box?{size?58.11?10.66?30.27}

}

]}

]

}

”

Read type that file and string operation parse the 3D model at server end through PHP and be respectively 58.11,10.66,30.27 for " cuboid ", its length.Then through several following PHP statements:

echo″＜SCRIPT?LANGUAGE＝\″javascript\″>″；

echo″var?model＝′Box′；\n″；

echo″var?data1＝″.$data1.″；\n″；

echo″var?data2＝″.$data2.″；\n″；

echo″var?data3＝″.$data3.″；\n″；

echo″＜/SCRIPT>″

”

Be sent to client to parameter, wherein, data1, data2, data3 represent length respectively.

(2) drafting of client 3D model and demonstration

Client receives the parameter of server end, and the three-dimensional coordinate that can determine eight summits of cuboid is:

(data1*0.5, data2*0.5 ,-data3*0.5), (data1*0.5, data2*0.5; Data3*0.5), (data1*0.5 ,-data2*0.5, data3*0.5), (data1*0.5 ,-data2*0.5;-data3*0.5), (data1*0.5, data2*0.5 ,-data3*0.5), (data1*0.5, data2*0.5; Data3*0.5), (data1*0.5 ,-data2*0.5, data3*0.5), (data1*0.5 ,-data2*0.5;-data3*0.5), and the sequence number on eight summits is denoted as: 1,2,3,4,5,6,7,8, specifically as shown in Figure 5.

(3) coordinate transform

In order to strengthen the interactivity of cuboid, introduced a transformation matrix:

$M=\left(\begin{array}{ccc}{m}_0& m_1& m_2\\ m_3& m_4& m_5\\ m_6& m_7& m_8\end{array}\right)---\left(1\right)$

If any summit is (x in eight summits ₀, y ₀, z ₀), then the coordinate after the conversion (x, y z) are:

$\left(\begin{array}{c}x\\ y\\ z\end{array}\right)=\left(\begin{array}{ccc}{m}_0& m_1& m_2\\ m_3& m_4& m_5\\ m_6& m_7& {\mathrm{<figure-callout\; id="8"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_8\end{array}\right)\&times;\left(\begin{array}{c}{x}_0\\ y_0\\ z_0\end{array}\right)---\left(2\right)$

What on screen, see can only be the perspective view of 3D model, therefore also needs a perspective conversion just can calculate the perspective grid of arbitrary summit on screen, for this reason, and the conversion below adopting:

$\left\{\begin{array}{c}{x}^{\&prime;}=l+\frac{x}{z\&times;0.001+1.25}\\ y^{\&prime;}=t+\frac{y}{z\&times;0.001+1.25}\end{array}\right.---\left(3\right)$

Wherein (l t) is two parameters of adjustment 3D models show position in screen.

(4) confirm visible face

Can be known by Fig. 5: 6 faces of this cuboid can be expressed as (1,2,3,4), (1,4,8,5), (1,5,6,2), (7,3,2,6), (7,8,4,3), (7,6,5,8) with vertex number respectively.

Judge whether certain face is visible face, rule below adopting:

To arbitrary, establish vertex number for (a, b, c, d), corresponding four summits are respectively (V _a, V _b, V _c, V _d), calculate this face If

With vector (0,0,1) in the same way, then this face is a visible face, otherwise for meeting.

(5) draw visible face

Draw visible face and comprise the pel filling, the pel filling need be found out the section of striding accordingly.In order to reduce error, need the appropriate primary axis of selecting.If four corners of some visible face are (V _a, V _b, V _c, V _d), corresponding coordinate is respectively (x _a, y _a), (x _b, y _b), (x _c, y _c) and (x _d, y _d).

If x _Min=Min (x _a, x _b, x _c, x _d), xmax=Max (x _a, x _b, x _c, x _d),

y _min＝Min(y _a，y _b，y _c，y _d)，y _max＝Max(y _a，y _b，y _c，y _d)

If (x _Max-x _Min)>=(y _Max-y _Min), be primary axis then with the x axle, fill.The false code of filling is following:

for(i＝Xmin；i＜＝Xmax；i++){

If when x=i, calculate the y coordinate of the upper and lower end of the section of striding, be designated as y1 respectively, y2;

DIV code below using carries out color and fills:

<div?style＝″overflow:hidden；left:′+i

+′px；top:′+Math.round(y1)

+′px；height:′+Math.round(y2-y1)

+′px；width:1px；position:absolute；background-color:′+clr

+′；″></div>；

}

Otherwise, be that primary axis is filled with the y axle, the false code of filling is following:

for(i＝Ymin；i＜＝Ymax；i++)

{

When y=i, calculate the x coordinate of the left and right end of the section of striding, be designated as x1 respectively, x2;

DIV code below using carries out color and fills:

<div?style＝″overflow:hidden；top:′+i

+′px；left:′+Math.round(x1)

+′px；width:′+Math.round(x2-x1)

+′px；height:1px；position:absolute；background-color:′+clr

+′；″></div>

}

(6) man-machine interaction design

In order to increase the interactivity of Web3D model,, realize that principle is the modification transformation matrix for model has increased the spinfunction around x axle, y axle.The mode of revising is specific as follows:

After x axle rotation θ angle,

$\left(\begin{array}{ccc}{m}_0^{\&prime;}& {\mathrm{<figure-callout\; id="1"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_1^{\&prime;}& {\mathrm{<figure-callout\; id="2"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_2^{\&prime;}\\ {\mathrm{<figure-callout\; id="3"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_3^{\&prime;}& {\mathrm{<figure-callout\; id="4"\; label="m"\; filenames="HSA00000285235200041.png,HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_4^{\&prime;}& {\mathrm{<figure-callout\; id="5"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_5^{\&prime;}\\ {\mathrm{<figure-callout\; id="6"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_6^{\&prime;}& {\mathrm{<figure-callout\; id="7"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_7^{\&prime;}& {\mathrm{<figure-callout\; id="8"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_8^{\&prime;}\end{array}\right)=\left(\begin{array}{ccc}1& 0& 0\\ 0& \cos \mathrm{\&theta;}& -\sin \mathrm{\&theta;}\\ 0& \sin \mathrm{\&theta;}& \cos \mathrm{\&theta;}\end{array}\right)\&times;\left(\begin{array}{ccc}{m}_0& m_1& m_2\\ m_3& m_4& m_5\\ m_6& m_7& m_8\end{array}\right)---\left(4\right)$

After y axle rotation θ angle,

$\left(\begin{array}{ccc}{m}_0^{\&prime;}& {\mathrm{<figure-callout\; id="1"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_1^{\&prime;}& {\mathrm{<figure-callout\; id="2"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_2^{\&prime;}\\ {\mathrm{<figure-callout\; id="3"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_3^{\&prime;}& {\mathrm{<figure-callout\; id="4"\; label="m"\; filenames="HSA00000285235200041.png,HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_4^{\&prime;}& {\mathrm{<figure-callout\; id="5"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_5^{\&prime;}\\ {\mathrm{<figure-callout\; id="6"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_6^{\&prime;}& {\mathrm{<figure-callout\; id="7"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_7^{\&prime;}& {\mathrm{<figure-callout\; id="8"\; label="m"\; filenames="HSA00000285235200042.png"\; state="\{\{state\}\}">m</figure-callout>}}_8^{\&prime;}\end{array}\right)=\left(\begin{array}{ccc}0& 1& 0\\ \cos \mathrm{\&theta;}& 0& \sin \mathrm{\&theta;}\\ -\sin \mathrm{\&theta;}& 0& \cos \mathrm{\&theta;}\end{array}\right)\&times;\left(\begin{array}{ccc}{m}_0& m_1& m_2\\ m_3& m_4& m_5\\ m_6& m_7& m_8\end{array}\right)---\left(5\right)$

Can make its rotation through the button manual operation, also can realize adopting automatic rotation.If will realize automatic rotation, can adopt the SetInterval function among the JavaScript.

It may be noted that; Through drafting, conversion and the rotation of cuboid a kind of concrete realization of the present invention is described hereinbefore; Those skilled in the art is easy to be generalized to the drafting of other models, drafting, conversion and the rotation of any 3D model that especially equally also can realize being made up of triangle gridding.The 3D model all is made up of line, point and face, obtains these information through resolution file, just can " three-dimensional model simplifying algorithm " can be similar in client and draw and show, thereby restore the 3D model of server end.

Fig. 6 illustrates the structure chart of an embodiment of 3D model service device of the present invention.As shown in Figure 6, server comprises that model resolution unit 61, precision confirm unit 62, simplified model acquiring unit 63 and model parameter transmitting element 64 among this embodiment.Wherein, model resolution unit 61 receives the accessing page request of self terminal, from the page of request visit, resolves the 3D model file.Precision confirms that unit 62 confirms the precision of 3D model according to the performance at terminal.For example, precision confirms that unit 62 confirms the precision of 3D model according to the screen display resolution at terminal.Simplified model acquiring unit 63 obtains the simplification 3D model corresponding with precision.Simplified model acquiring unit 63 for example obtains the simplification 3D model corresponding with precision according to 3D model simplification algorithm.The parameter that model parameter transmitting element 64 will be simplified the 3D model sends to the terminal, so that terminal drafting 3 D model.

Fig. 7 illustrates the structure chart of another embodiment of 3D model service device of the present invention.As shown in Figure 7, to compare with Fig. 6, simplified model acquiring unit 73 comprises weight acquisition module 731, quantity determination module 732, dough sheet selection module 733 in the server 700 of this embodiment.Weight acquisition module 731 obtains the weight of the tri patch of 3D model; Quantity determination module 732 confirms to simplify the tri patch quantity that the 3D model comprises according to precision; Dough sheet selects module 733 to select to simplify the tri patch that the 3D model comprises according to the weight of tri patch.

3D model of the present disclosure browse implementation method, based on the Web3D principle, technology such as the three-dimensional model simplifying algorithm of employing, the encapsulation of HTML basic language; Realized that threedimensional model can adapt to multi-screen and browse; And can the adaptive terminal performance, carry out the adjustment of 3D model according to terminal capabilities, the terminal can adopt the mode of plug-in unit to show the 3D model; Also can not adopt plug-in unit to show the 3D model; Overcome the implementation of the interactive browse of present Web3D model, mainly adopted plug-in part technology, in the supportive not strong defective of built-in terminals such as mobile phone.Scheme highly versatile of the present invention, it is little to take resource, and supportive strong to weak terminal can also be realized the interactive operation of terminal to the Web3D model through button operation.

Each embodiment describes various aspects of the present invention in this specification, and what each embodiment stressed all is and the difference of other embodiment that same or analogous part cross-references gets final product between each embodiment.For device embodiment, because it is similar basically with method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.

Claims (11)

1. A 3D model browse implementation method, it is characterized in that, comprising:

   Server receives the accessing page request of self terminal, from the page of request visit, resolves the 3D model file;

   Said server is confirmed the precision of said 3D model according to the performance at said terminal;

   Said server obtains the simplification 3D model corresponding with said precision;

   Said server sends to said terminal so that said 3D model is drawn at said terminal with the parameter of said simplification 3D model.
2. 2. 3D model according to claim 1 browse implementation method, it is characterized in that said server obtains the simplification 3D model corresponding with said precision according to 3D model simplification algorithm.
3. 3. 3D model according to claim 2 browse implementation method, it is characterized in that said server obtains the simplification 3D model corresponding with said precision according to 3D model simplification algorithm and comprises:

   Obtain the weight of the tri patch of 3D model;

   Confirm the tri patch quantity that said simplification 3D model comprises according to said precision;

   The tri patch of selecting said simplification 3D model to comprise according to the weight of said tri patch.
4. 4. 3D model according to claim 1 browse implementation method, it is characterized in that said 3D model is drawn through script or plug-in unit in said terminal.
5. 5. 3D model according to claim 1 browse implementation method, it is characterized in that, also comprise:

   In response to user's interactive operation, said terminal is carried out conversion and/or rotation according to the parameter of said simplification 3D model to said 3D model.
6. 6. a 3D model service device is characterized in that, comprising:

   The model resolution unit is used to receive the accessing page request of self terminal, from the page of request visit, resolves the 3D model file;

   Precision is confirmed the unit, is used for confirming according to the performance at said terminal the precision of said 3D model;

   The simplified model acquiring unit is used to obtain the simplification 3D model corresponding with said precision;

   The model parameter transmitting element is used for the parameter of said simplification 3D model is sent to said terminal so that said 3D model is drawn at said terminal.
7. 7. 3D model service device according to claim 6 is characterized in that, said simplified model acquiring unit obtains the simplification 3D model corresponding with said precision according to 3D model simplification algorithm.
8. 8. according to the described 3D model service of claim 72 device, it is characterized in that said simplified model acquiring unit comprises:

   The weight acquisition module, the weight of the tri patch of acquisition 3D model;

   The quantity determination module is confirmed the tri patch quantity that said simplification 3D model comprises according to said precision;

   Dough sheet is selected module, the tri patch of selecting said simplification 3D model to comprise according to the weight of said tri patch.
9. 9. the realization system of browsing of a 3D model is characterized in that, comprises any described server in the claim 6 to 8, and said terminal;

   Said terminal is used to send said accessing page request; Reception is drawn said 3D model from the parameter of the said simplification 3D model of said server according to the parameter of said simplification 3D model.
10. 10. the realization system of browsing of 3D model according to claim 9 is characterized in that said 3D model is drawn through script or plug-in unit in said terminal.
11. 11. the realization system of browsing of 3D model according to claim 1 is characterized in that, said terminal response is carried out conversion and/or rotation according to the parameter of said simplification 3D model to said 3D model in user's interactive operation.

Images