CN103297984B - A kind of system and method for WDM network topology structure vector quantization - Google Patents
A kind of system and method for WDM network topology structure vector quantization Download PDFInfo
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Abstract
A system and method for WDM network topology structure vector quantization, relates to WDM network planning system, comprising: data acquisition module, graphical model module, coordinate calculation module and graphic derivation module, gathers WDM network topology initial data; Calculate the position coordinates of each node, connect from the optical cable of node, the anchor point of business radio frequency channel, calculate optical cable connects the coordinate be connected with business radio frequency channel, arrange node device, optical cable connection, business radio frequency channel connection the content of Word message and the position coordinates of word-information display; According to the data calculated, use the node of the XML format element performance WDM network topology in SVG; Path element arranges optical cable in topology and connects, and Line element arranges service connection in WDM network topology; Use text descriptions all in text object element display network topology.The network topology structure vector quantization that WDM can net by the present invention, forms polar plot, supports the increment amendment on figure.
Description
Technical field
The present invention relates to WDM(DenseWavelengthDivisionMultiplexing, dense wave division multipurpose) specifically network planning system is a kind of system and method for WDM network topology structure vector quantization.
Background technology
Along with development and the ripe application of optical transport technology, optical transport network have also been obtained high speed development beyond example.Current, the core technology of Optical Transmission Network OTN is by traditional SDH(SynchronousDigitalHierarchy, SDH (Synchronous Digital Hierarchy)) technology, change SDH and WDM(DenseWavelengthDivisionMultiplexing into, dense wave division multipurpose) hybrid technology takes as the leading factor, and gradually to optical-fiber network evolution of future generation.Because current Optical Transmission Network OTN is very complicated and huge, thus cause network utilization not high, be unfavorable for rapid deployment new business, and the cost of operation maintenance also constantly increases.For this reason, the current optical network plan systems soft ware occurring multiple different editions, as the Oneplan Network planning software of VPISystems company of the U.S., as the DSS of Optical Transmission Network OTN, the software administration application platform of optical transport network is formed with network management system, for designing and plan the resource of ASON, the construction structure of analog simulation network and running status, thus the optimization and the recommendation on improvement scheme that propose networking.
In order to network topology structure that is directly perceived and performance WDM net efficiently, network topology structure being exported with the method for vector quantization, is frequent needs in scientific research, project invitation for bid, engineering construction.But, general network planning system can not the derivation of network enabled topology, or only can by network topology with the graphic file of the forms such as JPG everywhere, and this graphic file can not vector quantization, be not supported in the increment amendment on figure, be not easy to the use such as project invitation for bid, interchange yet.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide a kind of system and method for WDM network topology structure vector quantization, network topology structure vector quantization WDM can netted, forms polar plot, supports the increment amendment on figure.
For reaching above object, the invention provides a kind of system of WDM network topology structure vector quantization, comprising: data acquisition module, for gathering WDM network topology initial data from topological data source; Graphical model module, for exchanging with described data acquisition module, is adapted for network graphic model by the WDM network topology initial data in different topology data source; Coordinate calculation module, for the coordinate of each device resource in computing network topology, arranges coordinate and the length of text message; Graphic derivation module, according to the coordinate of each device resource that coordinate calculation module obtains, and the attribute of the device resource of data acquisition module acquisition, use SVG form to describe topological data resource, vector quantization network topology figure.
On the basis of technique scheme, described topological data source comprises NMS and to unify network planning system, described network management system is used for open WDM network topology data, and described network planning system is used for manual input device parameter, supports graphical Interface.
On the basis of technique scheme, in described network topology, the coordinate of each device resource comprises node coordinate, the anchor point coordinate of optical cable connection, the anchor point coordinate of waveguide connection of equipment.
The present invention also provides a kind of WDM network topology structure vectorization method based on described system, comprise the steps: that S1. gathers WDM network topology initial data, comprise number of nodes, the type determined in WDM network, length, attenuation that in WDM network, optical cable connects, radio frequency channel number, the wavelength of business radio frequency channel in WDM network; S2. by layout control algolithm calculate each node position coordinates, connect from the optical cable of node, the anchor point of business radio frequency channel, calculate optical cable connects the coordinate be connected with business radio frequency channel, arrange node device, optical cable connection, business radio frequency channel connection the content of Word message and the position coordinates of word-information display; S3. according to the data that described layout control algolithm calculates, the XML format unit in SVG is used usually to show the node of WDM network topology; Use the Path element of SVG to arrange optical cable in topology to connect, the Line element of SVG form arranges service connection in WDM network topology; Use text descriptions all in the text object element of SVG display network topology.
On the basis of technique scheme, in described S1, by New-deployed Network manual in planning software, open existing planning network or import webmaster network data and gather WDM network topology initial data, and generate node and node data list, the data list of business radio frequency channel and optical cable data list.
On the basis of technique scheme, calculate the position coordinates of each node in described S2, be specially: according to the size of the degree of communication of described node, according to order from big to small, to node sequencings all in WDM network; Travel through described node data list, judge whether each node exists coordinate information, if do not exist, this node coordinate of initialization; Travel through the adjacent node be connected with this, calculate the actual coordinate of adjacent node; Judge whether the actual coordinate of adjacent node overlaps with other node coordinates in WDM network, if do not overlap, arranges the position coordinates that this actual coordinate is this node; End after all node traverses complete.
On the basis of technique scheme, the coordinate that each optical cable connects is calculated in described S2, coordinate set calculation process is: S221. obtains the coordinate of source node and destination node respectively, calculates source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction; S222. the optical cable between ergodic source node, destination node connects, and calculates the broken line angle that every bar optical cable connects; S223. according to described source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction and broken line angle, in traversal WDM network, each optical cable connects, calculate the coordinate that each optical cable connects breakover point, build the coordinate set that optical cable connects.
On the basis of technique scheme, the coordinate of the text importing that described business radio frequency channel connects, obtains source anchor point and the place anchor point coordinate of the connection of business radio frequency channel, the middle point coordinates of source anchor point and place anchor point line respectively, is business radio frequency channel display information coordinate.
On the basis of technique scheme, XML format in described SVG unit usually shows the node of WDM network topology, is specially: all nodes in traversal WDM network, obtain from node data list the coordinate of node icon, highly, width attribute; According to SVG form, assignment is carried out to XML element, the height of SVG node image, width, coordinate are set; From node data list, obtain node icon file, derive this file to default path, and SVG interior joint icon is associated with this path.
On the basis of technique scheme, the Path element of described use SVG arranges optical cable in topology and connects, line in topological node, the optical cable be used between expression topological node connects, the optical cable connection that traversal WDM network is all, obtain optical cable data list, if what optical cable connected only has two coordinates, calculate the middle coordinate of two coordinates, if more than two coordinates in optical cable data list, obtain all coordinate figures, Path attribute of an element value is set according to SVG call format.
On the basis of technique scheme, the Line element of described SVG form arranges business radio frequency channel in WDM network topology and connects, and first line in topological node, is used for expressing the business radio frequency channel between topological node; Travel through the data list of described business radio frequency channel, judge whether draw business radio frequency channel between the source of business radio frequency channel, destination node, if do not have, need drafting business radio frequency channel, comprise the anchor point coordinate of business radio frequency channel source node and the anchor point coordinate of destination node, Line attribute of an element value is set according to SVG call format.
Beneficial effect of the present invention is: by the algorithm in the system and method for WDM network topology structure vector quantization, fast resolving WDM network topology structure after energy, and topological vector data can be generated, can generating vector diagram according to these topological vector datas, described polar plot also support vector is derived, can support that the increment on figure is revised, so that the use such as project invitation for bid, interchange.
Accompanying drawing explanation
Fig. 1 is the system diagram of WDM network topology structure vector quantization of the present invention;
Fig. 2 is the method flow diagram of WDM network topology structure vector quantization of the present invention;
Fig. 3 is the set based algorithm flow process of embodiment of the present invention node location coordinate.
Reference numeral: data acquisition module 1, graphical model module 2, coordinate calculation module 3, graphic derivation module 4.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 1, the system of WDM network topology structure vector quantization of the present invention, comprise data acquisition module 1, graphical model module 2, coordinate calculation module 3 and graphic derivation module 4, data acquisition module 1 intercoms with graphical model module 2 phase, coordinate calculation module 3 coordinates computed tablet pattern model module 2, graphical model module 2 is by graphic derivation module 4 vector quantization network topology figure and derive.Each module specifically act as:
Data acquisition module 1, for gathering WDM network topology initial data from topological data source; Topological data source comprises NMS and to unify network planning system, described network management system is used for open WDM network topology data, described network planning system is used for manual input device parameter, supports graphical Interface, supports that user directly inputs the network equipment, cable resource.In the present embodiment, network management system is Fiberhome telecommunication e-FimOTNM2000 transmission network Subnetwork Management System, WDM network topology data, to the position, parameter etc. of the open WDM equipment of WDM network topology structure vectored system of the present invention, are supported from network management system, import network topology data.
Graphical model module 2, for exchanging with described data acquisition module, is adapted for network graphic model by the WDM network topology initial data in different topology data source; Other modules use the model data of graphical model module 2 to complete correlation function.
Coordinate calculation module 3, for the coordinate of each device resource in computing network topology, arranges coordinate and the length of text message; The coordinate of each device resource comprises: the anchor point coordinate that the anchor point coordinate that the coordinate of device node, optical cable connect, waveguide connect.
Graphic derivation module 4, according to the coordinate of each device resource that coordinate calculation module obtains, and the attribute of the device resource of data acquisition module acquisition, use SVG(ScalableVectorGraphics, scalable vector graphics) form describes topological data resource, comprise equipment, optical cable, business radio frequency channel etc., vector quantization network topology figure.
As shown in Figure 2, the present invention is based on the WDM network topology structure vectorization method of said system, comprise the steps:
S1.WDM network topology initial data is the basis of topological diagram vector quantization, therefore will first gather, to determine number of nodes, the type (comprising OTM node, OADM node, OA node) in WDM network; Length, attenuation that in WDM network, optical cable connects; Radio frequency channel number, the wavelength of business radio frequency channel in WDM network.
During concrete enforcement, by New-deployed Network manual in network planning system, open existing planning network or import one of webmaster network data three kinds of modes, gather WDM network topology initial data, can be realized by above-mentioned data acquisition module 1 and graphical model module 2.To import webmaster network data, data acquisition module 1 is analyzed the webmaster network data imported, and generates graphics model object by graphical model module 2.Concrete WDM network opens up original data collection steps of flutterring: data acquisition module 1 opens webmaster network data exchange interface, prepares data buffer zone, starts exchanges data; Then WDM network node and node data list, the data list of business radio frequency channel, optical cable data list is generated.The WDM network collected is opened up and is originally flutterred packet includes network resource type and parameter thereof, illustrates as table 1.
Table 1
S2. by layout control algolithm calculate each node position coordinates, connect from the optical cable of node, the anchor point of business radio frequency channel, calculate optical cable connects the coordinate be connected with business radio frequency channel, arrange node device, optical cable connection, business radio frequency channel connection the content of Word message and the position coordinates of text importing.
As shown in Figure 3, be the set based algorithm flow chart of embodiment of the present invention node location coordinate, concrete steps are as follows:
S201. according to the size of the degree of communication of described node, according to order from big to small, to node sequencings all in WDM network.
S202. described node data list is traveled through.
S203. judge whether each node exists coordinate information, if exist, enter S204; If do not exist, enter S205.
S204. obtain node coordinate (m, n), using this node as datum mark, enter S207.
S205. the X-axis of all nodes, the maximum (X, Y) of Y-axis coordinate in WDM network is obtained.
S206. initialization node coordinate (m, n), (m, n)=(X+D, Y+D), wherein D is preset value, and can be set to any value being greater than 0, usual span is 0 to 10, and using this node as datum mark.
S207. other nodes be connected with this datum mark are adjacent node, obtain the sum of described adjacent node, travel through described adjacent node.
S208. the actual coordinate (x, y) of each adjacent node is calculated according to formula x=m+Lcos (i*2 π/k), y=n+Lsin (i*2 π/k); Wherein, m, n represent the node coordinate of datum mark, and i represents the sequence number of adjacent node, the sum of k representative and adjacent node, and L is the fixed value calculating adjacent node and datum mark, and L value is general between 10 to 20.
S209. judge whether described actual coordinate (x, y) overlaps with other node coordinates in WDM network, if not, enters S210; If so, S211 is entered.
S210., the position coordinates that this actual coordinate (x, y) is this node is set, enters S211.
S211. judge whether adjacent node has traveled through, and if so, enters S212; If not, S207 is returned.
S212. judge that in WDM network, whether all nodes have traveled through, and if so, terminate; If not, S202 is returned.
In described step S2, the optical cable that correspondence requires broken line to connect, connects the coordinate of sourcesink node according to optical cable, calculate the coordinate that optical cable connects, coordinate set calculation process is:
S221. source node that optical cable connects is calculated to anchor point corresponding to destination node.Obtain the coordinate (source_x, source_y) of source node and the coordinate (target_x, target_y) of destination node respectively, calculate source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction; Computing formula is as follows:
Dx=target_x-source_x formula 1
Dy=target_y-source_y formula 2
Scale=0.5/max (| dx|/width, | dy|/height) formula 3
Source_anchor_x=source_x+dx*scale formula 4
Source_anchor_y=source_y+dy*scale formula 5
Wherein, dx refers to the distance in X-direction between source node and destination node, and dy refers to the distance in Y direction between source node and destination node, and scale is self-defining distance adaptation parameter, for the fine setting of anchor point result of calculation; Width is the width of node, height is the height of node, (source_anchor_x, source_anchor_y) be the anchor point coordinate of source node to destination node direction, the coordinate figure of mutual exchange starting point and terminal, the anchor point coordinate (target_anchor_x, tragte_anchor_y) of destination node to source node direction can be calculated.
S222. the optical cable between ergodic source node, destination node connects, and calculates the broken line angle that every bar optical cable connects.Computing formula is:
Flag=(index & 1) 1:-1 formula 6
α=flag*arctan ((1.3* (index/2)+1) * tan (π/4)) formula 7
This is that a pseudo-code describes, and represents that index is integer, and wherein, α is the broken line angle that optical cable connects, and index is the iteration sequence number that between node, optical cable connects, if index is integer, flag value is 1, otherwise falg value is-1.
S223. obtain according to preceding step, optical cable connects source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction and broken line angle, in traversal WDM network, each optical cable connects, and calculate the coordinate that each optical cable connects breakover point, computing formula is as follows:
Sin β=(target_anchor_y-source_anchor_y)/d formula 9
Cos β=(target_anchor_x-source_anchor_x)/d formula 10
Radius=10*cos
-1α formula 11
Point1=(source_anchor_x+radius*cos (alpha+beta), source_anchor_y+radius*sin (alpha+beta)) formula 12
Point2=(target_anchor_x+radius*cos (alpha-beta), target_anchor_y+radius*sin (alpha-beta)) formula 13
Wherein, d is the length of line between source node and destination node, and β is the angle of source node and destination node part line and X-axis, and α is the broken line angle of optical cable, the anchor point coordinate that (source_anchor_x, source_anhor_y) is source node; (target_anchor_x, target_anhor_y) is destination node anchor point coordinate; Radius refers to source node, destination node to the distance value of coordinate of discounting, and point1, point2 are two broken line coordinates on optical cable connects.
S224. preserve the coordinate calculating and obtain in order, build the coordinate set that optical cable connects.（source_anchor，point1，point2，target_anchor）。
In described S2, the coordinate calculating process that business radio frequency channel connects is as follows:
S231. computing service radio frequency channel connects the anchor point coordinate (source_anchor_x from source node to destination node direction respectively, source_anchor_y) the anchor point coordinate (target_anchor_x, from destination node to source node direction, tragte_anchor_y), computational methods connect anchor point computational methods with reference to optical cable.
S232. the coordinate points set that business radio frequency channel connects is built, because all business radio frequency channels are shown as one and are connected between source node with destination node, the coordinate points set that business radio frequency channel connects only comprises two anchor point coordinates (source_anchor, target_anchor).
Below for calculating the few examples code of optical cable connection coordinate point set:
In described S2, arrange node device, optical cable connect, business radio frequency channel connect the content of Word message and the position coordinates of word-information display, as: node device fileinfo coordinate is in the below of node image, and optical cable connects, business radio frequency channel connects the centre that word connects in correspondence.During the position coordinates of computing service radio frequency channel word-information display, first will obtain source anchor point and place anchor point coordinate that business radio frequency channel connects, the middle point coordinates of 2 lines, is the position coordinates of business radio frequency channel word-information display; The code sample of this calculation procedure is:
S3. according to the data that described layout control algolithm calculates, the XML format unit in SVG is used usually to show the node of WDM network topology; Use the Path element of SVG to arrange optical cable in topology to connect, the Line element of SVG form arranges service connection in WDM network topology; Use text descriptions all in the text object element of SVG display network topology.
Object meta in described SVG usually shows the node of WDM network topology, SVG provides multiple Drawing Object element, the form that simultaneously can also be entered by chain shows the icon of extended formatting, as JPG, GIF etc., by controlling these XML format elements, WDM network topology node can be shown according to nodal information.An image node can be created by DOM, and its width and height are set, a JPG icon representation node device can be used simultaneously, the process describing appliance icon according to node object is: first, nodes all in traversal WDM network, obtain from node object the coordinate of node icon, highly, width attribute; According to SVG form, assignment is carried out to XML element, the length and width of SVG node image, coordinate are set; Finally, from node object, obtain node icon file, derive this file to default path, and SVG interior joint icon is associated with this path.Be below few examples code:
Path, Line element of described use SVG, can in topological node line, be used for expressing the optical cable connection between topological node and business radio frequency channel line, these lines meet XML format requirement equally, DOM can be used to generate Path, line element, and attribute of an element value is set to the starting point controlling these and connect, terminal and shape.
Wherein, when using the Path element of SVG that optical cable connection in WDM network topology is set, first travel through all optical cables of WDM network and connect, obtain the optical cable data list in S1; Then judge there is several coordinate points in optical cable data list, if only have two coordinate points, calculate the middle coordinate of two coordinates, if more than two coordinate points, obtain all coordinate figures; Last " d ", " stroke ", " stroke_width " property value that Path element is set according to SVG call format, wherein " d " refers to Path element and shows linear coordinate set, " stroke " refers to Path element and shows linear color, and " stroke_width " refers to Path element and show linear width value.Below few examples code:
When the Line element of described SVG form arranges business radio frequency channel connection in WDM network topology, first line in topological node, is used for expressing the business radio frequency channel between topological node.Travel through the data list of described business radio frequency channel, judge whether drawn business radio frequency channel between the source node of business radio frequency channel and destination node, if drawn business radio frequency channel, do not need to repeat to draw; Otherwise need drafting business radio frequency channel.Because use straight line display business radio frequency channel, in the data list of business radio frequency channel, only need the anchor point coordinate of radio frequency channel source node, the anchor point coordinate of destination node.According to arranging " x1 ", " y1 ", " x2 " of Line element, " y2 ", " stroke ", " stroke_width ", " fill " property value according to SVG call format.Below few examples code:
The text object element <text> of use SVG shows text descriptions all in network topology, comprising: node device title, the length of lightguide cable link, business radio frequency channel speed etc.As <textx=" 10 " y=" 40 " style=" front-size:16pt " fill=" red " >FONST5000 equipment </text>, can be shown as " FONST5000 equipment ", color is red, size 16 pixel, coordinate position (10,40).From step S2, obtain coordinate and the content of corresponding text object, generate the first information such as length, business radio frequency channel speed usually showing node device title, lightguide cable link of <text> by DOM.When business radio frequency channel text message is set, need in business radio frequency channel connecting object, obtain radio frequency channel text coordinate and content, the font object of user-defined file display, according to SVG call format, arranges " x ", " y ", " font-family " of Text element, " font-size ", " fill " attribute and a newly-increased Text type sub-element.Below few examples code:
The present invention is not limited to above-mentioned execution mode, and for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as within protection scope of the present invention.The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (11)
1. a system for WDM network topology structure vector quantization, is characterized in that, comprising:
Data acquisition module, for gathering WDM network topology initial data from topological data source;
Graphical model module, for exchanging with described data acquisition module, is adapted for network graphic model by the WDM network topology initial data in different topology data source;
Coordinate calculation module, for the coordinate of each device resource in computing network topology, arranges coordinate and the length of text message;
Graphic derivation module, according to the coordinate of each device resource that coordinate calculation module obtains, and the attribute of the device resource of data acquisition module acquisition, use SVG form to describe topological data resource, vector quantization network topology figure;
Flow process when described system carries out WDM network topology structure vector quantization is:
Gather WDM network topology initial data, comprise number of nodes, the type determined in WDM network, length, attenuation that in WDM network, optical cable connects, radio frequency channel number, the wavelength of business radio frequency channel in WDM network;
By layout control algolithm calculate each node position coordinates, connect from the optical cable of node, the anchor point of business radio frequency channel, calculate optical cable connects the coordinate be connected with business radio frequency channel, arrange node device, optical cable connection, business radio frequency channel connection the content of Word message and the position coordinates of word-information display;
According to the data that described layout control algolithm calculates, the XML format unit in SVG is used usually to show the node of WDM network topology; Use the Path element of SVG to arrange optical cable in topology to connect, the Line element of SVG form arranges service connection in WDM network topology; Use text descriptions all in the text object element of SVG display network topology.
2. the system of WDM network topology structure vector quantization as claimed in claim 1, it is characterized in that: described topological data source comprises NMS and to unify network planning system, described network management system is used for open WDM network topology data, described network planning system is used for manual input device parameter, supports graphical Interface.
3. the system of WDM network topology structure vector quantization as claimed in claim 1, is characterized in that: in described network topology, the coordinate of each device resource comprises node coordinate, the anchor point coordinate of optical cable connection, the anchor point coordinate of waveguide connection of equipment.
4., based on a WDM network topology structure vectorization method for system described in claim 1, it is characterized in that, comprise the steps:
S1. gather WDM network topology initial data, comprise number of nodes, the type determined in WDM network, length, attenuation that in WDM network, optical cable connects, radio frequency channel number, the wavelength of business radio frequency channel in WDM network;
S2. by layout control algolithm calculate each node position coordinates, connect from the optical cable of node, the anchor point of business radio frequency channel, calculate optical cable connects the coordinate be connected with business radio frequency channel, arrange node device, optical cable connection, business radio frequency channel connection the content of Word message and the position coordinates of word-information display;
S3. according to the data that described layout control algolithm calculates, the XML format unit in SVG is used usually to show the node of WDM network topology; Use the Path element of SVG to arrange optical cable in topology to connect, the Line element of SVG form arranges service connection in WDM network topology; Use text descriptions all in the text object element of SVG display network topology.
5. WDM network topology structure vectorization method as claimed in claim 4, it is characterized in that: in described S1, by New-deployed Network manual in planning software, open existing planning network or import webmaster network data and gather WDM network topology initial data, and generate node and node data list, the data list of business radio frequency channel and optical cable data list.
6. WDM network topology structure vectorization method as claimed in claim 5, it is characterized in that: the position coordinates calculating each node in described S2, be specially: according to the size of the degree of communication of described node, according to order from big to small, to node sequencings all in WDM network; Travel through described node data list, judge whether each node exists coordinate information, if do not exist, this node coordinate of initialization; Travel through the adjacent node be connected with this node, calculate the actual coordinate of adjacent node; Judge whether the actual coordinate of adjacent node overlaps with other node coordinates in WDM network, if do not overlap, arranges the position coordinates that this actual coordinate is this node; End after all node traverses complete.
7. WDM network topology structure vectorization method as claimed in claim 5, is characterized in that: calculate the coordinate that each optical cable connects in described S2, coordinate set calculation process is:
S221. obtain the coordinate of source node and destination node respectively, calculate source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction;
S222. the optical cable between ergodic source node, destination node connects, and calculates the broken line angle that every bar optical cable connects;
S223. according to described source node to the anchor point coordinate in destination node direction, destination node to the anchor point coordinate in source node direction and broken line angle, in traversal WDM network, each optical cable connects, calculate the coordinate that each optical cable connects breakover point, build the coordinate set that optical cable connects.
8. WDM network topology structure vectorization method as claimed in claim 5, it is characterized in that: the coordinate of the text importing that described business radio frequency channel connects, obtain source anchor point and the place anchor point coordinate of the connection of business radio frequency channel respectively, the middle point coordinates of source anchor point and place anchor point line, is business radio frequency channel display information coordinate.
9. WDM network topology structure vectorization method as claimed in claim 5, it is characterized in that: the XML format unit in described SVG usually shows the node of WDM network topology, be specially: all nodes in traversal WDM network, obtain from node data list the coordinate of node icon, highly, width attribute; According to SVG form, assignment is carried out to XML element, the height of SVG node image, width, coordinate are set; From node data list, obtain node icon file, derive this file to default path, and SVG interior joint icon is associated with this path.
10. WDM network topology structure vectorization method as claimed in claim 5, it is characterized in that: the Path element of described use SVG arranges optical cable in topology and connects, line in topological node, the optical cable be used between expression topological node connects, the optical cable connection that traversal WDM network is all, obtain optical cable data list, if what optical cable connected only has two coordinates, calculate the middle coordinate of two coordinates, if more than two coordinates in optical cable data list, obtain all coordinate figures, Path attribute of an element value is set according to SVG call format.
11. WDM network topology structure vectorization methods as claimed in claim 5, it is characterized in that: the Line element of described SVG form arranges business radio frequency channel in WDM network topology and connects, first line in topological node, is used for expressing the business radio frequency channel between topological node; Travel through the data list of described business radio frequency channel, judge whether draw business radio frequency channel between the source of business radio frequency channel, destination node, if do not have, need drafting business radio frequency channel, comprise the anchor point coordinate of business radio frequency channel source node and the anchor point coordinate of destination node, Line attribute of an element value is set according to SVG call format.
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| CN101820357A (en) * | 2010-02-11 | 2010-09-01 | 哈尔滨工业大学 | Network security incident visualization system |
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