CN103679381A - Collaborative plotting method and system for situation map - Google Patents
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Abstract
The invention provides a collaborative plotting method and system for a situation map. The method includes the steps: acquiring drawing areas of rendering nodes in a plotting terminal; acquiring plotting data of clients; computing the plotting data of the clients needing data synchronization of the rendering nodes according to the drawing areas and the plotting data; respectively transmitting the plotting data of the clients to the corresponding rendering nodes according to computing results, and splicing all the plotting data into the whole situation map. The collaborative plotting method and system can prevent the rendering nodes from receiving the plotting data unrelated to the drawing areas corresponding to the rendering nodes, and rendering efficiency is effectively improved.
Description
Technical field
The present invention relates to combination field, particularly relate to a kind of Collaborative Plotting method of situation map and a kind of Collaborative Plotting System of situation map.
Background technology
Situation map is a kind of common instrument that commander and prediction scheme are deduced, and the battle plan that is applied at first military field is worked out.Situation map is using map as base map, use various labels, icon, word, annotation, the Dynamic Graph by the job facilities of action target, action scheme, action deployment, resource distribution, personnel's formation, action implementation and correspondence, facilities, weather environment, topography and geomorphology etc. to relevant all information flags resulting overall situation of reaction on base map of taking action.
Along with pulpit centralized displaying is controlled the development of applying, pulpit becomes commanders at different levels day by day, emergent, the decision center of scheduling institution.The situation map that pulpit need to depend on the overall situation of reaction carries out decision-making.The information of overall situation map is generally distributed in different some areas, the situation information in each some areas need to be synchronized to control center, realizes the Collaborative Plotting System of multi-client.Because control center will access a large amount of local messages, carry out overall situation displaying, generally all can configure the display splicing wall equipment of ultrahigh resolution, as VW (Video Wall, display splicing wall).
But, because the Collaborative Plotting System of existing multi-client need to be utilized a plurality of parts that node is drawn situation map separately of playing up, then a complete situation map of synchronous tiled generation, in traditional multi-client plotting system, this locality of each client is marked and drawed data and is arrived all color applying drawing nodes by Web broadcast.The in the situation that a lot of and network bandwidth being very low at client terminal quantity, easily cause network congestion, thereby cause color applying drawing node can receive the plotting data irrelevant with the machine drawing area, and the rendering efficiency of Collaborative Plotting System being lower.
Summary of the invention
Based on this, the invention provides a kind of Collaborative Plotting method and system of situation map, can improve rendering efficiency.
A Collaborative Plotting method for situation map, comprises the following steps:
Obtain and mark and draw the drawing area of respectively playing up node in terminal;
Obtain the plotting data of each client;
According to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the node of playing up that data synchronize;
According to result of calculation, the plotting data of each client are sent to respectively and play up accordingly node, and all plotting data are spliced into complete situation map.
A Collaborative Plotting System for situation map, comprising:
Drawing area acquisition module, marks and draws for obtaining the drawing area that terminal is respectively played up node;
Mark and draw data acquisition module, for obtaining the plotting data of each client;
Computing module, for according to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the node of playing up that data synchronize.
Mark and draw data and send and concatenation module, for according to result of calculation, the plotting data of each client being sent to respectively and playing up accordingly node, and all plotting data are spliced into complete situation map.
By above scheme, can be found out, the Collaborative Plotting method and system of situation map of the present invention, by to respectively playing up the drawing area scope of node and the plotting data of each client compare, calculate each client need to carry out data synchronous play up node, each is played up to the drawing area of node and dynamic calculation is carried out in plotting region, part corresponding to the plotting data of each client, make each client on local local map, to carry out independent plotting, and marked and drawed data and send out and accurately deliver in the drawing area of playing up accordingly node, thereby prevent from playing up node and receive the drawing area irrelevant plotting data corresponding with originally playing up node, effectively improved rendering efficiency.
Accompanying drawing explanation
Fig. 1 is the Collaborative Plotting method flow schematic diagram of a kind of situation map in the embodiment of the present invention;
Fig. 2 transforms to world coordinate system by the view frustums in eye coordinate in the embodiment of the present invention to obtain rendering space area schematic;
Fig. 3 is client area of space and play up node area of space and compare schematic diagram in the embodiment of the present invention;
Fig. 4 crosses over a plurality of plotting data of playing up node to client in the embodiment of the present invention to divide schematic diagram;
Fig. 5 splits schematic diagram to marking and drawing a plurality of plotting data of playing up node of client leap in the embodiment of the present invention;
Fig. 6 obtains the view frustums of current view point coordinate system from OpenGL color applying drawing system in the embodiment of the present invention;
Fig. 7 is the Collaborative Plotting System structural representation of a kind of situation map in the embodiment of the present invention;
Fig. 8 is a kind of Collaborative Plotting System structural representation based on VW situation map in the embodiment of the present invention.
Embodiment
In the embodiment of the present invention, take and on the display splicing wall of VW, draw world map and describe as example.
Shown in Figure 1, a kind of Collaborative Plotting method of situation map, comprises the following steps:
Step S101, obtains and marks and draws the drawing area of respectively playing up node in terminal.Client described in the embodiment of this can, for various clients such as PC, flat board, mobile phones, have good adaptability.
Step S102, obtains the plotting data of each client.Each client is marked and drawed separately the local situation map corresponding with it respectively.
Step S103, according to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the node of playing up that data synchronize.By calculate each client need to carry out data synchronous play up node, the plotting data that make each client respectively with a drawing area Corresponding matching of playing up node.With reference to Fig. 2 and Fig. 3, with P (x, y, z), be the coordinate of virtual camera in world coordinate system, A1B1C1D1E1F1G1H1 and A2B2C2D2E2F2G2H2 are two adjacent drawing areas of playing up node.Wherein B1C1F1G1 face overlaps with A2D2E2H2, for A1B1C1D1E1F1G1H1 and A2B2C2D2E2F2G2H2 are two adjacent borders of playing up node.A1b1c1d1e1f1g1h1 is a plotting region, part corresponding to plotting data of marking and drawing client, drops on completely in the area of space of playing up node A1B1C1D1E1F1G1H1.A2b2c2d2e2f2g2h2 is plotting regions, part corresponding to the plotting data of another client, in this plotting region, part, there is the region of half in playing up the area of space of node A1B1C1D1E1F1G1H1, have second half region in playing up the area of space of node A2B2C2D2E2F2G2H2.
Step S104, is sent to the plotting data of each client respectively and plays up accordingly node according to the result of calculation of step S103, and all plotting data are spliced into complete situation map.As the part of the a1b1c1d1e1f1g1h1 client in Fig. 3, mark and draw plotting region corresponding to data, drop on completely in the area of space of playing up node A1B1C1D1E1F1G1H1.Described result of calculation can comprise the corresponding node of playing up of client's plotting data, each mark and draw data can be separately corresponding one play up node, or cross over the more than one node of playing up, plotting arrow 1 corresponding in data is marked and drawed in the part of a1b1c1d1e1f1g1h1 client as shown in Figure 4, marking and drawing icon 4 drops on plotting client a2b2c2d2e2f2g2h2 and plays up the crossing region of node A1B1C1D1E1F1G1H1, this is marked and drawed to arrow 1, marking and drawing icon 4 is divided into a data centralization and is sent in the rendering space of playing up node A1B1C1D1E1F1G1H1, mark and draw arrow 2, marking and drawing icon 5 drops on plotting client a2b2c2d2e2f2g2h2 and plays up the crossing region of node A2B2C2D2E2F2G2H2, to mark and draw arrow 2, mark and draw icon 5 and be divided into same data centralization, and be sent in the rendering space of playing up node A2B2C2D2E2F2G2H2.By marking and drawing arrow 1, plotting icon 4, plotting arrow 2, plotting icon 5 and other plotting data, be sent to respectively after the rendering space of playing up node corresponding with it, by the splicing of Multi-Machine Synchronous technology, export a complete situation map.
So the corresponding plotting data of client and the instruction of correspondence thereof of a1b1c1d1e1f1g1h1 only need to be sent in the drawing area of playing up node that A1B1C1D1E1F1G1H1 is corresponding.So, each client marked and drawed respectively data independent be sent to play up node on corresponding with these plotting data, in relatively traditional drawing method by data broadcast to all nodes of playing up, in the present invention, the Collaborative Plotting method of situation map can effectively improve system performance and reduce the network bandwidth.
As a good embodiment, described in obtain and mark and draw the process of respectively playing up the drawing area of node in terminal and specifically can comprise as follows:
Step S1011, obtains current observation point and the corresponding view frustums parameter thereof browsed of situation map, the virtual camera position of respectively playing up node according to this observation point and view frustums calculation of parameter.When drawing world map, according to the roaming that world map is current, browse observation point, obtain successively each virtual camera position of playing up node and corresponding view frustums parameter thereof.
Step S1012, according to the corresponding drawing area of playing up node of position calculation of respectively playing up the virtual camera of node.As shown in Figure 5, from OpenGL rendering system, obtain take virtual camera current view frustums hither plane zn, far plane zf, field angle fov parameter and view frustums be far away in the eye coordinate of true origin O, hither plane was surrounded depending on cutting the visibility region that body ABCDEFGH region is color applying drawing.As shown in Figure 2, in to the judgement of area of space, need to by look cut body ABCDEFGH region by the viewpoint change matrixing in OpenGL rendering system in world coordinate system, world coordinates (the x current according to camera in OpenGL rendering system, y, z) calculate the drawing area A1B1C1D1E1F1G1H1 that plays up node, and the corresponding data of drawing area are sent and stored in the array of playing up node drawing area in Control Server.
As a good embodiment, described in obtain the plotting data of each client process specifically can comprise as follows:
Step S1021, what obtain the current observation point of marking and drawing of client and correspondence thereof is centrum parameter, calculates the virtual camera position of each client according to described observation point;
Step S1022, according to the plotting data of the virtual camera position calculation relative client of each client.The process of plotting data and the process of the drawing area that node is played up in above-mentioned calculating of calculating relative client are similar, and as shown in Figure 3, the plotting data of described client are a1b1c1d1e1f1g1h1.
In addition, as a good embodiment, each client of described calculating need to be carried out the synchronous process of playing up node of data and specifically can be comprised as follows:
Step S1031, judges whether to exist the plotting data of described client to cross over a plurality of drawing areas of playing up node according to result of calculation.As the part of the a1b1c1d1e1f1g1h1 client in Fig. 3, marking and drawing plotting region corresponding to data drops in the drawing area of playing up node A1B1C1D1E1F1G1H1 completely; And in plotting region, part corresponding to the plotting data of a2b2c2d2e2f2g2h2 client some region in playing up the drawing area of node A1B1C1D1E1F1G1H1, there is another part region in playing up the drawing area of node A2B2C2D2E2F2G2H2, so two drawing areas of playing up node have been crossed in plotting region, part corresponding to the plotting data of this a2b2c2d2e2f2g2h2 client, calculate the coordinate figure of intersecting plane xywh.Certainly also may there are two plotting districts, part corresponding to plotting data of playing up above the drawing area of node.
Step S1032, if so, becomes a plurality of sons to mark and draw data this plotting Data Division by crossing over a plurality of data based the plurality of borders of playing up the drawing area of node of plotting of playing up the drawing area of node.In this process, also plotting space corresponding to plotting data of crossing over a plurality of drawing areas can be divided, for example, plotting region, part corresponding to the plotting data of a2b2c2d2e2f2g2h2 client can be divided into two parts according to described intersecting plane xywh by this plotting region, part.As shown in Figure 6, the plotting data of described a2b2c2d2e2f2g2h2 client are for marking and drawing arrow 3, now can play up the border (the B1C1F1G1 face overlapping and the xywh in A2D2E2H2 face) that node and A2B2C2D2E2F2G2H2 play up node according to described A1B1C1D1E1F1G1H1 described plotting arrow is divided into two son plotting data.
Step S1033, marks and draws data by each son and is sent to respectively in the corresponding drawing area of playing up node.
As a good embodiment, the Collaborative Plotting method of the situation map of this enforcement is further comprising the steps of:
Obtain the total quantity of marking and drawing display unit in terminal;
Obtain and respectively play up the display unit quantity that node can drive;
According to the total quantity of described display unit and respectively play up the quantity that display unit quantity that node can drive is played up node described in calculating.As, the total number of display unit of the display splicing wall of VW is M, it is single that to play up the display unit number that node can drive be N, described in play up node number can be M/N.
Corresponding with the Collaborative Plotting method of a kind of situation map in above-described embodiment, the present invention also provides a kind of Collaborative Plotting System of situation map, as shown in Fig. 7 and Fig. 8, comprising:
Drawing area acquisition module 101, marks and draws for obtaining the drawing area that terminal is respectively played up node;
Mark and draw data acquisition module 102, for obtaining the plotting data of each client;
Mark and draw data and send and concatenation module 104, for according to result of calculation, the plotting data of each client being sent to respectively and playing up accordingly node, and all plotting data are spliced into complete situation map.
As a good embodiment, described computing module can comprise:
Judge module, exists the plotting data of described client to cross over a plurality of drawing areas of playing up node for judging whether according to result of calculation;
Mark and draw Data Division module, be used in the situation that judgment result is that of described judge module is, by crossing over a plurality of data based the plurality of borders of playing up the drawing area of node of plotting of playing up the drawing area of node, become a plurality of sons to mark and draw data this plotting Data Division;
Son is marked and drawed data transmission blocks, for each son being marked and drawed to data, is sent to respectively in the corresponding drawing area of playing up node.
As a good embodiment, drawing area acquisition module can comprise:
The first virtual camera position computation module, for obtaining current observation point and the corresponding view frustums parameter thereof browsed of situation map, the virtual camera position of respectively playing up node according to this observation point and view frustums calculation of parameter;
Drawing area computing module, respectively plays up the corresponding drawing area of playing up node of position calculation of the virtual camera of node for basis.
As a good embodiment, described plotting data acquisition module can comprise:
The second virtual camera position computation module, is centrum parameter for what obtain the current observation point of marking and drawing of client and correspondence thereof, calculates the virtual camera position of each client according to described observation point;
Mark and draw data computation module, for according to the plotting data of the virtual camera position calculation relative client of each client.
As a good embodiment, the Collaborative Plotting System of described situation map can also comprise:
The first display unit quantity acquisition module, for obtaining the total quantity of marking and drawing terminal display unit;
The second display unit quantity acquisition module, respectively plays up for obtaining the display unit quantity that node can drive;
Play up node quantity computing module, for according to the total quantity of described display unit and respectively play up the quantity that display unit quantity that node can drive is played up node described in calculating.
Other technical characterictic of the Collaborative Plotting System of above-mentioned a kind of situation map is identical with the Collaborative Plotting method of a kind of situation map of the present invention, and it will not go into details herein.
By above scheme, can find out, the Collaborative Plotting method and system of situation map of the present invention, by to respectively playing up the drawing area scope of node and the plotting data of each client compare, calculate each client need to carry out data synchronous play up node, each is played up to the drawing area of node and dynamic calculation is carried out in plotting region, part corresponding to the plotting data of each client, make each client on local local map, to carry out independent plotting, and marked and drawed data and send out and accurately deliver in the drawing area of playing up accordingly node, thereby prevent from playing up node and can receive the irrelevant plotting data of the drawing area corresponding with originally playing up node, thereby improved rendering efficiency, the network bandwidth that takies used when the present invention has reduced plotting data and transmits in addition, prevents that network from stopping up, and has improved the efficiency of data transmission, and can use under compared with circlet border at the network bandwidth.
Be appreciated that, a kind of Collaborative Plotting method and system of situation map in the present invention, the situation map of drawing out by described method can be distributed situation map, be that each client can be carried out independent plotting on local local map, and mark and draw in playing up node corresponding with it, can realize the situation map of control center's ultrahigh resolution giant-screen and draw, solve the too low problem of unit plotting system output screen resolution.
Be appreciated that method provided by the invention can be by increasing the number of rendering node, the more high-resolution situation map of synchronous output, or support the more client access of marking and drawing, there is good dirigibility.
It should be noted that, unless context separately has the description of specific distinct, the element in the present invention and assembly, the form that quantity both can be single exists, and form that also can be a plurality of exists, and the present invention does not limit this.Although the step in the present invention is arranged with label, and be not used in the precedence that limits step, unless expressly stated the order of step or the execution of certain step need other steps as basis, otherwise the relative order of step is adjustable.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a Collaborative Plotting method for situation map, is characterized in that, comprises the following steps:
Obtain and mark and draw the drawing area of respectively playing up node in terminal;
Obtain the plotting data of each client;
According to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the node of playing up that data synchronize;
According to result of calculation, the plotting data of each client are sent to respectively and play up accordingly node, and all plotting data are spliced into complete situation map.
2. the Collaborative Plotting method of situation map according to claim 1, is characterized in that, according to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the process of playing up node that data synchronize and comprise:
According to result of calculation, judge whether to exist the plotting data of described client to cross over a plurality of drawing areas of playing up node;
If so, by crossing over a plurality of data based the plurality of borders of playing up the drawing area of node of plotting of playing up the drawing area of node, become a plurality of sons to mark and draw data this plotting Data Division;
Each son is marked and drawed to data to be sent to respectively in the corresponding drawing area of playing up node.
3. the Collaborative Plotting method of situation map according to claim 2, is characterized in that, described in obtain and mark and draw the process of respectively playing up the drawing area of node in terminal and comprise:
Obtain current observation point and the corresponding view frustums parameter thereof browsed of situation map, the virtual camera position of respectively playing up node according to this observation point and view frustums calculation of parameter;
According to the corresponding drawing area of playing up node of position calculation of respectively playing up the virtual camera of node.
4. the Collaborative Plotting method of situation map according to claim 2, is characterized in that, described in obtain the plotting data of each client process comprise:
What obtain the current observation point of marking and drawing of client and correspondence thereof is centrum parameter, calculates the virtual camera position of each client according to described observation point;
According to the plotting data of the virtual camera position calculation relative client of each client.
5. according to the Collaborative Plotting method of the situation map described in claim 1-4 any one, it is characterized in that, further comprising the steps of:
Obtain the total quantity of marking and drawing display unit in terminal;
Obtain and respectively play up the display unit quantity that node can drive;
According to the total quantity of described display unit and respectively play up the quantity that display unit quantity that node can drive is played up node described in calculating.
6. a Collaborative Plotting System for situation map, is characterized in that, comprising:
Drawing area acquisition module, marks and draws for obtaining the drawing area that terminal is respectively played up node;
Mark and draw data acquisition module, for obtaining the plotting data of each client;
Computing module, for according to described drawing area and mark and draw data and calculate the plotting data of each client and need to carry out the node of playing up that data synchronize.
Mark and draw data and send and concatenation module, for according to result of calculation, the plotting data of each client being sent to respectively and playing up accordingly node, and all plotting data are spliced into complete situation map.
7. the Collaborative Plotting System of situation map according to claim 6, is characterized in that, described computing module comprises:
Judge module, exists the plotting data of described client to cross over a plurality of drawing areas of playing up node for judging whether according to result of calculation;
Mark and draw Data Division module, be used in the situation that judgment result is that of described judge module is, by crossing over a plurality of data based the plurality of borders of playing up the drawing area of node of plotting of playing up the drawing area of node, become a plurality of sons to mark and draw data this plotting Data Division;
Son is marked and drawed data transmission blocks, for each son being marked and drawed to data, is sent to respectively in the corresponding drawing area of playing up node.
8. the Collaborative Plotting System of situation map according to claim 7, is characterized in that, drawing area acquisition module comprises:
The first virtual camera position computation module, for obtaining current observation point and the corresponding view frustums parameter thereof browsed of situation map, the virtual camera position of respectively playing up node according to this observation point and view frustums calculation of parameter;
Drawing area computing module, respectively plays up the corresponding drawing area of playing up node of position calculation of the virtual camera of node for basis.
9. the Collaborative Plotting System of situation map according to claim 7, is characterized in that, described plotting data acquisition module comprises:
The second virtual camera position computation module, is centrum parameter for what obtain the current observation point of marking and drawing of client and correspondence thereof, calculates the virtual camera position of each client according to described observation point;
Mark and draw data computation module, for according to the plotting data of the virtual camera position calculation relative client of each client.
10. according to the Collaborative Plotting System of the situation map described in claim 6-9 any one, it is characterized in that, also comprise:
The first display unit quantity acquisition module, for obtaining the total quantity of marking and drawing terminal display unit;
The second display unit quantity acquisition module, respectively plays up for obtaining the display unit quantity that node can drive;
Play up node quantity computing module, for according to the total quantity of described display unit and respectively play up the quantity that display unit quantity that node can drive is played up node described in calculating.
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| CN105354295A (en) * | 2015-11-04 | 2016-02-24 | 北京超图软件股份有限公司 | Dynamic display apparatus and method for three-dimensional dynamic plotted-point label |
| CN105354295B (en) * | 2015-11-04 | 2019-12-17 | 北京超图软件股份有限公司 | Dynamic display device and method for three-dimensional dynamic plotting point labels |
| CN108737690A (en) * | 2018-05-30 | 2018-11-02 | 湖北安心智能科技有限公司 | A kind of distributed collaboration interactive system and method |
| CN109345610A (en) * | 2018-10-29 | 2019-02-15 | 泰华智慧产业集团股份有限公司 | Method and system for displaying combat command on a map |
| CN111427494A (en) * | 2020-03-05 | 2020-07-17 | 深圳震有科技股份有限公司 | Map collaborative plotting method and device based on event subscription and release mode |
| CN112419499A (en) * | 2020-11-14 | 2021-02-26 | 中国科学院电子学研究所苏州研究院 | Immersive situation scene simulation system |
| CN112419499B (en) * | 2020-11-14 | 2022-11-29 | 中国科学院电子学研究所苏州研究院 | Immersive situation scene simulation system |
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Application publication date: 20140326 |