CN102819562A - Network marking and reporting method for geospatial information - Google Patents

Network marking and reporting method for geospatial information Download PDF

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CN102819562A
CN102819562A CN2012102302793A CN201210230279A CN102819562A CN 102819562 A CN102819562 A CN 102819562A CN 2012102302793 A CN2012102302793 A CN 2012102302793A CN 201210230279 A CN201210230279 A CN 201210230279A CN 102819562 A CN102819562 A CN 102819562A
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mark
target
geospatial information
variation
information
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CN102819562B (en
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陈军
邢汉发
周晓光
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NATIONAL GEOMATICS CENTER OF CHINA
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Abstract

The invention provides a network marking and reporting method for geospatial information. The method is used for marking and reporting geospatial information in a network environment, wherein the network environment comprises at least one marking and reporting terminal, at least one network map service server and at least one geospatial information database server which are mutually connected by a network; finding out changed parts and parts needing to be updated in the conventional map data in the marking and reporting terminal; and sending sorting parameters of geometrical information types and attribute information of the parts to the geospatial information database server, and reconstructing and updating the geospatial information in the geospatial information database server. The method provided by the invention is used for converting an area target snapshot difference into a contour line snapshot difference and classifying the contour line snapshot difference and an original linear target snapshot difference, thus realizing changed information marking and reporting and changed range update and reconstruction of the geospatial information based on a changed contour line of a target.

Description

A kind of method of geospatial information networking mark newspaper
Technical field
The invention belongs to geography information renewal technology field, relate to a kind of method of geospatial information networking mark newspaper.
Background technology
Geospatial information mark newspaper is meant that the user is according to current information or on-site inspection; With topographic entity variation range, type and the association attributes demarcated; Report and submit to the background process center; Being used for the renewal to original geospatial information, is the geospatial information mark newspaper of support with paper map, summary sheet at present, and its advantage is the current information information that can effectively integrate various places; Shortcoming be manual mark and draw efficient low, report that to gather the cycle long, interactive relatively poor, can not satisfy the demand that geospatial information dynamically updates under the information-based condition.The shortcoming that the newspaper means are used to overcome traditional current information space mark newspaper is marked in networking, is that geography information changes a feasible way of finding fast under the information-based condition.In order to realize networking mark newspaper, need the extraterrestrial target principle of classification of research towards the mark newspaper, solve the problem of " what is marked "; The design object reconfiguration technique solves the problem that user side receives " how using " behind the change information.
Early stage people mainly carry out whole object the change in time and space sort research; To existence, conversion and the motion of former and later two time period targets constantly of t2, object variations is divided into 8 types of whole appearance, disappearance, expansion, displacements etc. like the t1 that gives chapter and verse in " Claramunt C; Th é riault M..1995.Managing Time in GIS An Event-Oriented Approach.Recent Advances on Temporal Databases [M] .Clifford, J.and Tuzhilin, A (eds.); Springer-Verlag; Zurich, Switzerland:23-42 "; The external identity property of the target of giving chapter and verse in " Hornsby K.Egenhofer is Change:A Foundation for Spatio-Temporal Knowledge Representation [J] .International Journal of Geographical Information Science M.2000.Identity-Based; 14 (3): 207-224 " changes and carries out the reasoning modeling, the reflection extraterrestrial target totally 9 kinds of change types that fluctuate between existing, not existing; In fact it is variation range that the geospatial information mark that is used to upgrade is reported needed, and these researchs do not relate to the differentiation and the classification of targeted graphical difference, can't be applied to and upgrade in the mark newspaper.
Target snapshot difference is meant that the geographical space target at former and later two space diagram and attribute differences constantly of t1, t2, can describe its variation range.Fig. 1 is the target snapshot differential intention of geospatial information, referring to shown in Figure 1, and in the research of target snapshot difference class, target snapshot difference D among Fig. 1 1Be actual variation range, it is demarcated needs traversal and writes down whole outline line L 1, L 2L wherein 2Be real significant variation outline line, L 1Can calculate through descriptive geometry and obtain.If in mark newspaper process, gather the object variations outline line, can reduce the staking-out work amount, can reduce the flow of change information networking transmission again.In order to realize that based target changes the change information mark newspaper of outline line, need the classification of research and development variation outline line, and the variation range reconstruct of based target outline line." Chen Jun, Lin Yan, Liu Wanzeng, Zhou Xiaoguang; Towards the extraterrestrial target snapshot difference class and the formalized description [J] that upgrade; The mapping journal; 2012 (2): 108-114 " tlv triple that propose to adopt goal discrepancy in, differ from and hand over; target snapshot difference is classified has provided the calculating and the application process in incremental crawler and change information are issued thereof of principal-employment, minus tolerance; But because target snapshot difference also exists certain mark that repeats to report, like the L among Fig. 1 1Need not at the mark record that gives the correct time, and target is an outline line in reality mark newspaper that therefore, the snapshot difference still can not satisfy and changes mark newspaper demand.On the other hand, in the research based on the outline line update processing, ArcGIS has realized many to line target and appearance target renewal operation, like Split (cutting), Merge (merging) etc.; Propose in " Raza; A.and W.Kainz; 2002.An Object-Oriented Approach for Modeling Urban Land-Use Changes [J] .URISA Journal14 (1): 37-55. " to realize and the entity state angle changing from database respectively, basic renewal is operated designed and realize; The angle of upgrading from topology linkage in " Chen Jun, Zhou Xiaoguang, 2008. Incremental Updating based on topology linkage [J], mapping journal, 37 (3): 322-329. " has proposed 5 kinds and has upgraded operation; But these upgrade operation all is to new edition overall goals snapshot, does not consider to utilize goal discrepancy to accomplish and upgrades operation, therefore can't be applied to change in actual renewal of outline line mark newspaper.
Summary of the invention
The invention provides the method for a kind of geospatial information networking mark newspaper, to reduce or to avoid problem noted earlier.
For addressing the above problem; The present invention proposes a kind of method of geospatial information networking mark newspaper; Said method is used for the geospatial information mark newspaper of network environment, and said network environment comprises through network interconnective at least one mark newspaper terminal, at least one network map service server and at least one geospatial information database server; Said method comprises the steps:
A, said mark newspaper terminal obtain map datum from said network map service server and said geospatial information database server; Two kinds of data combinations are shown; Map datum at the current geospatial information on the spot of said mark newspaper terminal input; Through comparison, find out in the existing map datum part that changes, needs renewal;
B, the geological information of the variation of geospatial information is classified from the outline line angle according to the target snapshot difference of geospatial information; Appearance is marked the snapshot difference, and to convert the line snapshot into poor; Classify jointly together with line target snapshot difference; Set up variation outline line and the variation characteristic point classification of geospatial information, will change outline line and be divided into: the new destination line, prolong score, cut score, incorporate score into, the score that changes its course, replace 6 types of scores; The variation characteristic point is divided into: new destination point, deletion impact point, cutting impact point, moving target point, rolling target point, replacement impact point, keep 7 types of impact points; Said mark newspaper terminal is provided with the classification options of said variation outline line and said variation characteristic point;
C, based on the classification of the variation outline line among the step B and variation characteristic point; To the part that changes in the map datum described in the steps A, needs and upgrade; On said mark newspaper terminal, select the geological information type of the variation of definite its geospatial information, promptly change the type of outline line and variation characteristic point;
D, according to the geological information of the variation of the geospatial information of confirming among the step C, on said mark newspaper terminal, select input to indicate the sorting parameter of attribute information of the variation of the geospatial information of confirming among the step C
Figure BDA00001849638700031
C wherein SGExpression changes classified description, I cThe sign dynamic of expression target, T pThe expression topological relation, D cThe variation of expression target dimension, S c, P c, A cThe running parameter of representing the target geometric properties respectively;
The sign dynamic parameter I of said target c={ newly-built, deletion exists, and wakes up };
Said topological relation parameter T pComprise mutually from, adjacent, comprise, involved, equate, overlap, cover, be capped, intersect;
Said target dimension running parameter D c={ point, line, face };
The running parameter S of said target geometric properties cThe shape of presentation-entity, P cThe position of presentation-entity, A cThe position angle of presentation-entity;
The sorting parameter C of the geological information type of E, the variation through the geospatial information of said mark newspaper terminal in said geospatial information database server mark newspaper step C and the attribute information of its variation of sign among the step D SGSaid geospatial information database server is according to the graphical information and the attribute information of said variation outline line information; Calculate the principal-employment and the minus tolerance of target snapshot, add principal-employment, the deletion minus tolerance; Target geospatial information after reconstruct changes carries out geospatial information reconstruct and upgrades;
F, said mark newspaper terminal obtain map datum from said geospatial information database server, compare with the map datum of the current geospatial information of importing in the steps A on the spot, if data also there are differences, then repeat step C to step e.
Preferably, the database server of geospatial information described in the step e adopts to hand over and differ from two set operation operators and changes the outline line update calculation, and based on result of calculation data is carried out the renewal operation.
Preferably, said network map service server is Google Maps server and/or day map server.
Preferably, said mark newspaper terminal is wearable computer system and/or embedded system.
The present invention proposes a kind of method of geospatial information networking mark newspaper; Needs to geospatial information mark newspaper, renewal; Appearance is marked the snapshot difference, and to convert the line snapshot to poor; Classify together with original line target snapshot difference, set up the classification that geospatial information changes outline line type and associated change parameter, change the outline line type to every kind; The corresponding operation operator that upgrades of design, thus the change information mark newspaper and the variation range that realize the geospatial information of based target variation outline line are upgraded reconstruct.
Description of drawings
Following accompanying drawing only is intended to the present invention is done schematic illustration and explanation, not delimit the scope of the invention.Wherein,
Fig. 1 is the target snapshot differential intention of geospatial information;
Fig. 2 a is the line target snapshot difference segmentation synoptic diagram according to the method for a kind of geographical space change information networking mark newspaper of a specific embodiment of the present invention;
Fig. 2 b converts line target snapshot difference segmentation synoptic diagram into for the appearance mark of the method shown in Fig. 2 a;
Fig. 3 a is the cutting score synoptic diagram of the method shown in Fig. 2 a;
Fig. 3 b is the cutting impact point synoptic diagram of the method shown in Fig. 2 a;
Fig. 4 a is the variation outline line classification synoptic diagram of the method shown in Fig. 2 a;
Fig. 4 b is the variation characteristic point classification synoptic diagram of the method shown in Fig. 2 a;
Fig. 5 is the object reconstruction operator synoptic diagram of the method shown in Fig. 2 a;
Embodiment
To understand in order technical characterictic of the present invention, purpose and effect being had more clearly, to contrast description of drawings embodiment of the present invention at present.Wherein, identical parts adopt identical label.
Specify implementation step and principle thereof with reference to the accompanying drawings according to the method for a kind of geographical space change information networking mark newspaper of the present invention.
The method of a kind of geospatial information networking mark newspaper proposed by the invention; Said method is used for the geospatial information mark newspaper of network environment, and said network environment comprises through network interconnective at least one mark newspaper terminal, at least one network map service server and at least one geospatial information database server; Said method comprises the steps:
A, said mark newspaper terminal obtain map datum from said network map service server and said geospatial information database server; Two kinds of data combinations are shown; Map datum at the current geospatial information on the spot of said mark newspaper terminal input; Through comparison, find out in the existing map datum part that changes, needs renewal;
For example; Pipe network maintainer for city tap-water company can use the mark newspaper terminal such as the PC computer; Be connected to the such network map service server of Google Maps server through network and obtain city map; Simultaneously from the pipe network data server of Running-water Company; Just the geospatial information database server obtains existing pipe network map datum, on institute indicating newspaper terminal, mixes the technology of taking through the such service of Mashup two kinds of map datums combinations are shown, so just can access the picture of display tube net wiring diagram on city map intuitively; When the pipe network maintainer finds that in the pipeline inspection pipe network wiring diagram and actual conditions have difference; Can perhaps use the gps measuring equipment that the pipe network circuit is carried out at the scene and measure through downloading the up-to-date satellite map picture of input, and measurement result is generated picture import said mark newspaper terminal; Picture that will conform to actual conditions and said mark newspaper terminal are from the pipe network data server of Running-water Company; Just the picture of the existing pipe network map datum that obtains of geospatial information database server is compared, and just can find out easily in the existing map datum not meet with actual conditions, changes, needs the part upgraded.For not meeting with actual conditions; Searching of the part that changes, need upgrade; Can on said mark newspaper terminal, installation make said mark newspaper terminal automatically through picture comparison completion, also can manually demarcate by the pipe network maintainer to the software that picture carries out the pixel comparison.
B, the geological information of the variation of geospatial information is classified from the outline line angle according to the target snapshot difference of geospatial information; Appearance is marked the snapshot difference, and to convert the line snapshot into poor; Classify jointly together with line target snapshot difference; Set up variation outline line and the variation characteristic point classification of geospatial information, will change outline line and be divided into: the new destination line, prolong score, cut score, incorporate score into, the score that changes its course, replace 6 types of scores; The variation characteristic point is divided into: new destination point, deletion impact point, cutting impact point, moving target point, rolling target point, replacement impact point, keep 7 types of impact points; Said mark newspaper terminal is provided with the classification options of said variation outline line and said variation characteristic point;
Poor for the line target snapshot; Referring to " Chen Jun, Lin Yan, Liu Wanzeng; Zhou Xiaoguang. towards the extraterrestrial target snapshot difference class and the formalized description [J] that upgrade; mapping journal, 2012 (2): 108-114. ", can be divided into six types: target principal-employment, target minus tolerance, depart from positive minus tolerance, prolong principal-employment, shorten minus tolerance, prolong and shortening poor.Fig. 2 a is the line target snapshot difference segmentation synoptic diagram according to the method for a kind of geographical space change information networking mark newspaper of a specific embodiment of the present invention; Shown in Fig. 2 a, every kind of snapshot difference type can have corresponding outline line mark reporting method, need mark the newly-built line target of newspaper like the line target principal-employment, and the ID of line target is provided, and this type mark is reported be " new destination line "; The line target minus tolerance only need be marked the ID of newspaper destination object, and figure can represent that the later stage renewal is carried out deletion action according to ID number and got final product, and is referred to as " deletion impact point " with point; It is mobile and rotation that line target departs from the corresponding variation mark newspaper operation of positive minus tolerance, can therefore be referred to as respectively " moving target point " and " rolling target point " in later stage playback renewal process because of its need provide the variable quantity of mark newspaper point and mobile and rotation; Line target prolongs the prolongation operation that principal-employment need be carried out line, and this paper is called this type line " prolongation score "; Line target shortens minus tolerance only need identify line target shortening place position, can accomplish line target in the later stage and shorten the renewal operation, this type mark is reported be " cutting impact point "; It is poor that line target prolongs with shortening, carries out the corresponding newspaper of marking according to the difference variation that former target takes place, if the line target local deformation of generation; Like " river diversion " etc., need the mark newspaper place of changing its course to change line, operations such as the later stage deletes, merging; This type line is called " score changes its course "; If line target moves, and change the back target and intersect with former target, this type changes to be carried out corresponding " moving target point " mark and reports.
Because the essence of change information mark newspaper is the outline line of target; For the appearance mark also is like this; Therefore, it is poor to convert the appearance mark into the outline line snapshot, and just the graph data on the picture being accordinged to from the graphics area data-switching is the pattern line data; From the pattern line data-switching is the such dimensionality reduction conversions of graphical dots data; With the graphics area data conversion on the picture is the pattern edge cross-sectional data, and its boundary contour snapshot difference type of dimensionality reduction post analysis is to satisfy appearance mark classification demand in the mark newspaper.Referring to " Chen Jun; Lin Yan; Liu Wanzeng; Zhou Xiaoguang. towards the extraterrestrial target snapshot difference class and the formalized description [J] that upgrade, mapping journal, 2012 (2): 108-114. " appearance mark snapshot difference can be divided into: target principal-employment, target minus tolerance, depart from positive minus tolerance, expansion principal-employment, shrink minus tolerance, the expansion contraction differs from six types.Fig. 2 b converts line target snapshot difference segmentation synoptic diagram into for the appearance mark of the method shown in Fig. 2 a; Shown in Fig. 2 b, every kind of snapshot difference type can have the outline line of the correspondence that is different from line target snapshot difference to mark reporting method.
For example, the principal-employment of appearance mark is consistent with appearance mark minus tolerance and line target snapshot difference, respectively corresponding " new destination line " and " deletion impact point "; It is mobile that the appearance mark departs from the corresponding variation mark newspaper operation of positive minus tolerance, to change mark newspaper " moving target point "; Under two kinds of situation of appearance mark expansion principal-employment, the operation of mark newspaper is different, enlarges as the appearance mark is whole; Need the mark newspaper to change back target wheel profile, the later stage upgrades and carries out replacement operation, in the literary composition this type outline line is called " replacement outline line "; And enlarge for the appearance mark is local, mark is reported the outline line of expansion place, obtains the intersection point of this line and former target; Former target is located the line deletion at 2, and remaining part is carried out union operation with mark newspaper line, this type mark is reported be " merging score "; The mark of appearance mark contraction minus tolerance is called the score and is following two kinds of situation: a kind of is the subcontract of appearance mark, needs mark newspaper variation back target wheel profile, and the later stage upgrades and carries out replacement operation; In the literary composition this type outline line is also referred to as " replacement outline line ", and for the subcontract of appearance mark, the mark newspaper dwindles the outline line at place; Obtain the intersection point of this line and former target, former target is slit into two sections 2 punishment, need be based on mark; Carry out union operation, this type mark is reported be " cutting apart score ".
Above-mentioned snapshot difference class is with the classification results that (just is the pattern line data or is the graphics area data) under the dimension, does not consider that dimension changes the change type that causes.Give the correct time when dimension changes mark, the later stage renewal needs to carry out replacement operation, and it is be called " the replacement score " of line and face that the present invention will change the back dimension, and dimension is be called " the replacement impact point " of point.The point target situation of change is not considered in above-mentioned classification simultaneously yet, and the present invention increases point target mark newspaper and changes classification: " newly-built point target " and " deletion point target " two types.
For " cutting score " and " cutting impact point " change type, Fig. 3 a is the cutting score synoptic diagram of the method shown in Fig. 2 a; Fig. 3 b is the cutting impact point synoptic diagram of the method shown in Fig. 2 a; Shown in Fig. 3 a, 3b, if do not carry out necessary sign, the later stage can't be accomplished and upgraded operation.Shown in Fig. 3 a, target was cut into a and b before " cutting score " L will change, and the later stage can't learn when upgrading that needing to keep a still is that b and L make up new target; Shown in Fig. 3 b; " cutting impact point " A is divided into a and b with line target, and the later stage does not know to need to keep a or b when upgrading, therefore; When mark newspaper " cutting score " and " cutting impact point ", need add reserved identities; The present invention is called " reserved identities point ", shown in Fig. 3 a, 3b, and the point of b part among the figure.
Fig. 4 a is the variation outline line classification synoptic diagram of the method shown in Fig. 2 a; Fig. 4 b is the variation characteristic point classification synoptic diagram of the method shown in Fig. 2 a; In sum, shown in Fig. 4 a, 4b, the present invention will change outline line and be divided into: the new destination line, prolong score, cut score, incorporate score into, 6 types of the scores that changes its course, replacement score; The variation characteristic point is divided into: new destination point, deletion impact point, cutting impact point, moving target point, rolling target point, replacement impact point, keep 7 types of impact points; Can make the minimum data that in network, transmits like this.
On said mark newspaper terminal, be provided with the classification options of said variation outline line and said variation characteristic point in advance; Be convenient to said mark newspaper terminal like this picture and the said mark that conform to actual conditions are being reported the pipe network data server of terminal from Running-water Company; After just the picture of the existing pipe network map datum that obtains of geospatial information database server is compared, by selecting automatically or import in the said geospatial information the said variation outline line of the part that changes, needs to upgrade and the type of said variation characteristic point in said mark newspaper terminal by the staff.
C, based on the classification of the variation outline line among the step B and variation characteristic point; To the part that changes in the map datum described in the steps A, needs and upgrade; On said mark newspaper terminal, select the geological information type of the variation of definite its geospatial information, promptly change the type of outline line and variation characteristic point;
According to variation outline line among the step B and the classification of variation characteristic point; The part that the pipe network maintainer of the city tap-water company in the steps A can change to the picture that contrast in the pipe network wiring diagram that on city map intuitively, shows conforms to actual conditions, needs upgrade is selected definite geological information type of perhaps importing the variation of its geospatial information; Promptly change the type of outline line and variation characteristic point; The said variation outline line of the part that certainly, also can upgrade and the type of said variation characteristic point by changing in the said geospatial information of the automatic selection in said mark newspaper terminal, needing.Like this, can ensure from said mark newspaper terminal the minimum data that sends said geospatial information database server through network to, the conserve network bandwidth cost.
D, according to the geological information of the variation of the geospatial information of confirming among the step C, confirm to indicate the sorting parameter of the attribute information of its variation
Figure BDA00001849638700091
C wherein SGExpression changes classified description, I cThe sign dynamic of expression target, T pThe expression topological relation, D cThe variation of expression target dimension, S c, P c, A cThe running parameter of representing the target geometric properties respectively;
The sign dynamic parameter I of said target c={ newly-built, deletion exists, and wakes up };
Said topological relation parameter T pComprise mutually from, adjacent, comprise, involved, equate, overlap, cover, be capped, intersect;
Said target dimension running parameter D c{ point, line, face };
The running parameter S of said target geometric properties cThe shape of presentation-entity, P cThe position of presentation-entity, A cThe position angle of presentation-entity;
Give the correct time geospatial information being changed mark,, promptly change the type of outline line and variation characteristic point, also need to describe, could accomplish the later stage renewal and operate the association attributes of all kinds of variations except needs provide its geological information type.Rotate like, appearance mark,, the detailed description of running parameter such as the anglec of rotation need be provided also, could generate target after the variation except the position of figure mark newspaper rolling target point.In the former studies, " Klippel A.; Worboys M.; Duckham M.; 2008.Identifying factors of geographic event conceptualisation [J]; International Journal of Geographical Information Science; 22 (2), Pages183-204 " in be that example is tested with " moving (move) " incident, think that topological relation, target identification (identity), dynamic (dynamics) etc. all have material impact to the generalities description of change events; Gradual change rule angle from topology relationship in " Egenhofer M J; K.k.al-taha; G Goos; J.Hartmanis.1992.Reasoning about gradual change of topological relationships [M] .Pisa, italy:196-219. " has confirmed that topological relation is in the importance that changes describing; " Zuoquan Zhao; Roger R.Stough; Dunjiang Song.Measuring congruence of spatial objects [J] .International Journal of Geographical Information Science:2011 (1): 113-130 " in be example with area target " expansion ", analysed in depth the variation description and the inner link of shape, position angle and the position of extraterrestrial target.In view of above-mentioned achievement in research, the present invention starts with from running parameters such as target identification dynamic, topological relation, dimension, shape, position, orientation, sets up the change information formalized description model based on the outline line classification.The effect of running parameter and value thereof are explained as follows:
1) element identification dynamic
The target identification state is the reflection to entity existence in the real world, can express the situation of change of entity in real world.Extraterrestrial target comprises three states: exist, historiedly do not exist and do not have historical not existing, the varied through three kinds of states can draw 9 kinds of simple target maybe situations of change, can referring to " Zheng Kougen; Tan Shiyu, Pan Yunhe. based on the unified Spatio-Temporal Data Model for Spatial [J] of state and variation, software journal, 2001; 12 (9): 1360-1365 ", 4 kinds of variations after it makes up, can corresponding outline line classify and the target identification state variation between relation, i.e. Ic={Create; Eliminate, Continue-existence, Reincarnate}, among the present invention with Ic (Value)={ 02; 21,22,12} representes Create (newly-built) successively; Eliminate (deletion), Continue-existence (existing), Reincarnate (waking up).Unique Id of the corresponding target of target identification, and Ic=(Value, Oid).For example Id carries out " deletion impact point " mark newspaper for the appearance of " GB101 " mark, the Ic value be (21, GB101).
2) topological relation
It is generally acknowledged that topological relation mainly comprises mutually from (disjoint) between two targets, adjacent (touch); Comprise (contains), involved (inside), equate (equal) overlap (overlap); Referring to " Zhang Feng, Liu Nan, Liu Renyi; etc. OO land deeds time-space process is expressed and Data Update model investigation [J]. mapping journal, 2010,39 (3): 303-309 "; Increase cover (covering) relation among the present invention; And the symmetric relation inside (involved) that comprises (contains), cover (covering) and coverby (being capped) added and define, described altogether mutually from, adjacent, comprise, involved, equate, overlap, cover, be capped, intersect 9 kinds of topological relations, tackling its value: T p=1,2,3,4,5,6,7,8,9}.
3) the target dimension changes
Novel entities occurs, old entity disappears if in variation, do not have, and the entity dimension is an important parameters, and the variation of dimension can cause replacement operation in upgrading in the later stage.Such as the expansion of settlement place, become face by point, need the point-like key element be replaced with area pattern in then upgrading, promptly delete the point-like key element, create area pattern.In the literary composition dimension of target changed and directly express, be i.e. D={0,1,2}={ point, line, face } with actual dimension.For example, it is 02 that dimension changes the Dc value, and expression becomes face by point.
4) the target geometric properties changes
The entity of the objective world of expressing with point-like, planar and wire key element all be have a certain size, geometric properties such as orientation, position and shape; The variation of the geometric properties of these geographical entities of judgement description can be used for confirming the change type of entity, referring to " Zuoquan Zhao; Roger R.Stough; Dunjiang Song.Measuring congruence of spatial objects [J] .International Journal of Geographical Information Science:2011 (1): 113-130 ".Three essential characteristics according to wire key element and area pattern: position, shape, position angle judge whether two entities are identical, with the shape of S presentation-entity, and the position angle of A presentation-entity, the position of P presentation-entity.Position angle and location parameter can use a position and variable quantity combination to express, as:
A=(R_point,M_X,M_Y),P=(R_point,R_Degree)。
The shape of extraterrestrial target also is the important parameter that entity changes, and for example in Data Update, need straight line be become curve, exists to upgrade in corresponding variation mark newspaper and the editing process and operates, and needs deletion straight line key element, creates curve element.Change in shape applicable shapes characterising parameter is expressed, and expresses like the type (like straight line, circular arc, SPL etc.) of line target shape available line.The target shape value is shown below.
Figure BDA00001849638700111
Through above-mentioned various parameter analyses, the present invention proposes like a kind of hexa-atomic group model of following formulate and describe running parameter based on the outline line classification,
Figure BDA00001849638700112
Wherein, C SGExpression changes classified description, I cThe sign and the dynamic of expression target, T pThe expression topological relation, D cThe variation of expression target dimension, S c, P c, A cThe running parameter of representing the target geometric properties respectively.Give the correct time when carrying out the change information mark, can fill in each values of parameters according to actual conditions.
The sorting parameter of the geological information type of E, the variation through the geospatial information of said mark newspaper terminal in said geospatial information database server mark newspaper step C and the attribute information of its variation of sign among the step D; Said geospatial information database server is according to the graphical information and the attribute information of said variation outline line information; Calculate the principal-employment and the minus tolerance of target snapshot, add principal-employment, the deletion minus tolerance; Target geospatial information after reconstruct changes carries out geospatial information reconstruct and upgrades.
Said geospatial information database server receives in the map datum of said mark newspaper terminal mark newspaper and does not meet with reality; After the graphical information and attribute information of the variation outline line information of the part that changes, need upgrade; Said geospatial information database server can be according to the principal-employment and the minus tolerance of the information calculations target snapshot that receives; Add operation for principal-employment, carry out deletion action, so just can rebuild the target geospatial information that conforms to reality for minus tolerance; Pipe network wiring diagram after for example upgrading, after said mark newspaper terminal also just can obtain upgrading on city map intuitively, show the pipe network wiring diagram.
F, said mark newspaper terminal obtain map datum from said geospatial information database server, compare with the map datum of the current geospatial information of importing in the steps A on the spot, if data also there are differences, then repeat step C to step e.
Behind the map data update of said geospatial information database server; Said mark newspaper terminal obtains map datum again from said geospatial information database server, and shows with the map datum combination of obtaining from said network map service server, generates picture; The map datum of the current geospatial information of importing in newly-generated picture and the steps A is on the spot compared at said mark newspaper terminal; If picture conforms to, then accomplish networking mark newspaper, if data are still variant; Then repeat step C to step e, conform to until picture.Can ensure the reliability of Data Update like this.
In a preferred embodiment, the database server of geospatial information described in the step e adopts to hand over and differ from two set operation operators and changes the outline line update calculation, and based on result of calculation data is carried out the renewal operation.
Among the present invention, the essence that changes the renewal of outline line mark newspaper is based on mark newspaper figure and running parameter information, calculates target principal-employment and minus tolerance, adds principal-employment, deletes minus tolerance, and reconstruct changes the back fresh target.Respectively the renewal operation and the fusion rule of update calculation and object reconstruction described in detail below.
The positive minus tolerance of target is calculated: handing over (∩) and poor () is two the most frequently used in the algebraic method of space set operation operators, referring to " Chen Jun, Zhou Xiaoguang, 2008. Incremental Updating based on topology linkage [J], mapping journal, 37 (3): 322-329. ".Figure hand over (∩) to distinguish to change between outline line and former target be from or crossing, and the situation of friendship when intersecting; Figure difference () is the operation of judging object variations, can calculates the positive minus tolerance of target.Shown in Fig. 4 a, when changing outline line renewal fusion, only need in variation characteristic point or the processing of outline line position of intersecting point, these upgrade the later stage and play an important role, and the present invention is called unique point with these points.Whether the end points according to changing outline line overlaps, and it is divided into closed line and simple line.Shown in Fig. 4 a, the outline line intersection point is the end points of simple change outline line, and therefore, unique point comprises the end points of simple change outline line among Fig. 4 a and the cutting impact point among Fig. 4 b among the present invention.
Through above analysis, the present invention adopt friendship (∩) and poor () two set operation operators, with content, dimension and Betti number value, and considered " unique point " as the set operation result, change the outline line update calculation.Suppose that L is former target wheel profile, L ' is the variation outline line of mark newspaper, and P is the unique point set because be that line target is calculated, L ' then with L content and dimension can only be 1, in computing formula, can omit; When L ' ∩ L is not empty, changes outline line and can only intersect at 0 with former target wheel profile and tie up point, thus the present invention with formula f (L', L)=[f N(L' ∩ L), f N(L)] shown in the calculating framework change the calculating and the description of outline line and former target wheel profile.Wherein, f NThe expression Betti number, f NThe number combination that the value of (L ' ∩ L) can use " dimension " to add friendship is expressed, and L ' meets at 1 point with L like " 01 " expression; Unique point is divided into 3 sections with former target at most, so f N(P) span be { 1,2,3 }.
The above-mentioned formula of application formula changes outline line to difference respectively and carries out update calculation, and the result is following:
(1) prolongs score: f N(L ' ∩ L)=01, f N(P)=1
(2) cutting score: f N(L ' ∩ L)=02, f N(P)=2
(3) incorporate score into: f N(L ' ∩ L)=02, f N(P)=2
(4) score: the f that changes its course N(L ' ∩ L)=02, f N(P)=3
(5) replacement score: f N(L ' ∩ L)=-1, f N(P)=1
(6) cutting impact point: f N(L ' ∩ L)=01, f N(P)=2
Design of object reconstruction operator and description: after graphic change information is demarcated, need to carry out a plurality of renewal operation operators these variations are reflected to the geospatial information database server, as going in the GIS database.Mostly upgrade the operation operator design at present is to whole object; Do not consider that utilizing goal discrepancy to accomplish upgrades operation; Can't be applied to change in the renewal of mark newspaper, therefore, the present invention has designed accordingly and has carried out formalized description based on the renewal operation operator that changes outline line and to it.
In view of knowing variation characteristic point and outline line analysis of design, the variation mark newspaper of " new destination point and score " can utilize and upgrade operation " Create " completion; Breath correspondence " Delete " operation of notifying is marked in deletion; Can use " Move ", " Rotate " to operate completion respectively to " moving target point " and " rolling target point "; To " cutting impact point and score " application " Split " operation; " prolongation score " and " incorporating score into " changed renewal can use " Merge " operation to accomplish; For the variation of dimension, become face, become line etc. by point such as a figure by point, another is with under the dimension, and there is not common factor in the figure before and after changing, needs figure replacement operation completely, can use this moment and upgrade operation Update.
The present invention has designed 7 object reconstruction operators altogether, and Fig. 5 is the object reconstruction operator synoptic diagram of the method shown in Fig. 2 a; Referring to shown in Figure 5, said object reconstruction operator comprises:
Newly-built (Create): newly-built or add a new data-base recording, data source is to change the notify complete information of space target in the breath of mark;
Deletion (Delete): for the change information that contains " deletion impact point ", change mark notify only need provide in the breath deletion figure target identification, target identification is unique in database, therefore can delete respective record from database according to target identification;
Figure replacement (Update): for the change information that contains the figure replacement; Its variation is marked in the breath of notifying and is comprised new graph data; Utilize new data to replace former graph data fully, need in database, not increase or deletion record, only need to revise original record;
Figure is incorporated (Merge) into: it is to " prolongation score " and " incorporating score into " of changing in the mark newspaper that figure is incorporated operation into; It changes marks in the breath of notifying on former circular foundation, incorporating new outline line into; Form new figure; Need in database, not increase or deletion record, only need to revise original record;
Pattern cut (Split): the pattern cut operation is to " the cutting impact point " and " cutting score " that change in the mark newspaper; It changes marks the visuals that disappears for excision on former circular foundation in the breath of notifying; Form new figure; Need in database, not increase or deletion record, only need to revise original record.
Move (Move): the extraterrestrial target move operation, it changes mark and notifies that graphics shape does not change in the breath, and offset need not increase in database or deletion record, only needs the original record of modification.
Rotation (Rotate): the extraterrestrial target rotary manipulation, it changes mark and notifies that graphics shape does not change in the breath, and figure is rotated around the point of rotation, need in database, not increase or deletion record, only needs the original record of modification.
In sum, mark the notify geometry information of breath and the value of change to attributes parameter information, carry out corresponding renewal operation, promptly can realize the automatic fusion of change information based on changing.
In a preferred embodiment, said network map service server is Google Maps server and/or day map server.Can utilize Map Services data commonly used to obtain basic urban background map like this.
In a preferred embodiment, said mark newspaper terminal is wearable computer system and/or embedded system.Can be convenient to mark newspaper terminal like this and carry, convenient mark journalist person in time marks newspaper to actual geographic information data.
The present invention proposes a kind of method of geospatial information networking mark newspaper; Needs to geospatial information mark newspaper, renewal; Appearance is marked the snapshot difference, and to convert the outline line snapshot to poor; Classify together with original line target snapshot difference, set up the classification that geospatial information changes outline line type and associated change parameter, change the outline line type to every kind; The corresponding operation operator that upgrades of design, thus the change information mark newspaper and the variation range that realize the geospatial information of based target variation outline line are upgraded reconstruct.
Describing according to the mode of a plurality of embodiment though it will be appreciated by those skilled in the art that the present invention, is not that each embodiment only comprises an independently technical scheme.Narration like this only is for the sake of clarity in the instructions; Those skilled in the art should do instructions as a wholely to understand, and regard technical scheme related among each embodiment as the mode that can be combined into different embodiment each other understand protection scope of the present invention.
The above is merely the schematic embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, revises and combines the equivalent variations of under the prerequisite that does not break away from design of the present invention and principle, being done, and all should belong to the scope that the present invention protects.

Claims (4)

1. the method for reporting is marked in a geospatial information networking; It is characterized in that; Said method is used for the geospatial information mark newspaper of network environment, and said network environment comprises through network interconnective at least one mark newspaper terminal, at least one network map service server and at least one geospatial information database server; Said method comprises the steps:
A, said mark newspaper terminal obtain map datum from said network map service server and said geospatial information database server; Two kinds of data combinations are shown; Map datum at the current geospatial information on the spot of said mark newspaper terminal input; Through comparison, find out in the existing map datum part that changes, needs renewal;
B, the geological information of the variation of geospatial information is classified from the outline line angle according to the target snapshot difference of geospatial information; Appearance is marked the snapshot difference, and to convert the line snapshot into poor; Classify jointly together with line target snapshot difference; Set up variation outline line and the variation characteristic point classification of geospatial information, will change outline line and be divided into: the new destination line, prolong score, cut score, incorporate score into, the score that changes its course, replace 6 types of scores; The variation characteristic point is divided into: new destination point, deletion impact point, cutting impact point, moving target point, rolling target point, replacement impact point, keep 7 types of impact points; Said mark newspaper terminal is provided with the classification options of said variation outline line and said variation characteristic point;
C, based on the classification of the variation outline line among the step B and variation characteristic point; To the part that changes in the map datum described in the steps A, needs and upgrade; On said mark newspaper terminal, select the geological information type of the variation of definite its geospatial information, promptly change the type of outline line and variation characteristic point;
D, according to the geological information type of the variation of the geospatial information of confirming among the step C, on said mark newspaper terminal, select input to indicate the sorting parameter of attribute information of the variation of the geospatial information of confirming among the step C
Figure FDA00001849638600011
C wherein SGExpression changes classified description, I cThe sign dynamic of expression target, T pThe expression topological relation, D cThe variation of expression target dimension, S c, P c, A cThe running parameter of representing the target geometric properties respectively; The sign dynamic parameter I of said target c={ newly-built, deletion exists, and wakes up }; Said topological relation parameter T pComprise mutually from, adjacent, comprise, involved, equate, overlap, cover, be capped, intersect;
Said target dimension running parameter D c={ point, line, face };
The running parameter S of said target geometric properties cThe shape of presentation-entity, P cThe position of presentation-entity, A cThe position angle of presentation-entity;
The sorting parameter C of the geological information type of E, the variation through the geospatial information of said mark newspaper terminal in said geospatial information database server mark newspaper step C and the attribute information of its variation of sign among the step D SGSaid geospatial information database server is according to the graphical information and the attribute information of said variation outline line information; Calculate the principal-employment and the minus tolerance of target snapshot, add principal-employment, the deletion minus tolerance; Target geospatial information after reconstruct changes carries out geospatial information reconstruct and upgrades;
F, said mark newspaper terminal obtain map datum from said geospatial information database server, compare with the map datum of the current geospatial information of importing in the steps A on the spot, if data also there are differences, then repeat step C to step e.
2. based on the described method of claim 1, it is characterized in that the database server of geospatial information described in the step e adopts to hand over and differ from two set operation operators and changes the outline line update calculation, and based on result of calculation data is carried out the renewal operation.
3. method according to claim 1 is characterized in that, said network map service server is Google Maps server and/or day map server.
4. method according to claim 1 is characterized in that, said mark newspaper terminal is wearable computer system and/or embedded system.
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