CN102253932B - A kind of generalized information system and geographic position thereof are demarcated and querying method - Google Patents
A kind of generalized information system and geographic position thereof are demarcated and querying method Download PDFInfo
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Abstract
The geographic position that the invention discloses a kind of generalized information system is demarcated and querying method, comprises the following steps: demarcate the geographic position of wireform solid and point-like entity; The position of the wireform solid demarcated and point-like entity geographical entity is stored; The position of inquiry wireform solid and point-like entity; Wherein, the geographic position of the wireform solid of demarcation comprises trend and the relative position of described wireform solid; The geographic position of the point-like entity demarcated comprises, with the geographic position of the immediate wireform solid of described point-like entity, and the relative position of described point-like entity.The present invention also discloses a kind of generalized information system.Demarcated by the relative position relation between point-like entity and wireform solid in the present invention, it does not rely on existing generalized information system, convenient manual input, and has good extendability and reliability.
Description
Technical field
The present invention relates to a kind of generalized information system and geographic position thereof to demarcate and querying method.
Background technology
GIS (GeographicInformationSystem: Geographic Information System) is the computer system of the process input of geodata, output, management, inquiry, analysis and aid decision making, and basic fundamental is database, map visualization and spatial analysis.
With regard to GIS conceptual data model, mainly contain two large classes at present: the data model of topological relation data model and entity-oriented, wherein topological relation data model is widely used in Initial GIS Application system.These two kinds of models are in the extensibility of storage organization, and to the expressiveness of complicated geographical entity, the efficiency aspect of single entity inquiry, Query of Topological is each has something to recommend him.
Topological relation data model is tissue and store each geometric element based on " arc-node-polygon " such topological relation, and be characterized in centered by the topological connection relation by between point, line, surface, their coordinate storage has dependence.The major advantage of this model is that the topological relation prestored in system effectively can improve the efficiency of system in Query of Topological and network analysis, but it is not high to single geographical physical operation efficiency, the geographical entity of complexity beyond expression of words, be difficult to fast query and complicated spatial analysis, be difficult to safeguard and expand local data.
The model of entity-oriented is with the single space and geographical entity base unit that is Organization of Data and storage, and this model internal data also can building topology structure, but the coordinate of object does not have dependence between storing.This model has conveniently sets up complicated geographical entity, facilitates the advantage such as system maintenance and expansion.But its topological relation needs interim foundation, and dynamic segmentation network analysis efficiency is low, inter-entity common point and common edge repeated storage, is difficult to management, treatment and analysis to navigate to geometric element one-level.
The localization of coding can adopt two kinds of methods, and a kind of is use the interface that existing GIS software provides, and derived data, this method depends on its GIS software used.Another kind method is the coding creating oneself, in constructive process, some method is directly a part of as the data of demarcating situation of building using number, although China's number has increase gradually from east to west, from south to north, the coding rule of both sides, street is distinguished by odd or even number, but because part number is actual and do not meet its definition rule, if we indiscriminately imitate typing and obtain the location of building relative to street, just become dirty data.
Summary of the invention
The main technical problem to be solved in the present invention is, provides a kind of generalized information system of convenient expansion and geographic position thereof to demarcate and querying method.
For solving the problems of the technologies described above, a kind of geographic position of generalized information system is demarcated and querying method, comprises the following steps:
The geographic position of wireform solid and point-like entity is demarcated;
The position of the wireform solid demarcated and point-like entity geographical entity is stored;
The position of inquiry wireform solid and point-like entity;
Wherein, the geographic position of the wireform solid of demarcation comprises trend and the relative position of described wireform solid; The geographic position of the point-like entity demarcated comprises, with the geographic position of the immediate wireform solid of described point-like entity, and the relative position of described point-like entity.
The trend of described wireform solid comprises south-north direction and east-west.
The described geographic position to wireform solid is carried out demarcation and is comprised setting wireform solid coding, and described wireform solid is encoded to comprise and moved towards zone bit and relative position number; The relative position number of described wireform solid adjoins time increase in the south eastwards, from north orientation from west.
Carry out demarcation to the geographic position of described point-like entity to comprise: determine the geographic position with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity; Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
The described geographic position to point-like entity is carried out demarcation and is comprised: setting point-like entity coding V, wherein V=(X, Y), X comprises described first linear entity coding X1, distinguishes described point-like entity at the east of described first wireform solid or the first zone bit X2 in west and the first relative position number X3 of described point-like entity; Y comprises described second wireform solid coding Y1, distinguishes described point-like entity at the south of described second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity; When described X1 is identical, described point-like entity first relative position number X3 increases eastwards successively by from west; When described Y1 is identical, described point-like entity second point-like entity number Y3 is by adjoining time increase in the south from north orientation.
A kind of generalized information system, comprising: demarcating module, and described demarcating module is used for demarcating the geographic position of wireform solid and point-like entity; Memory module, described memory module is used for storing the position of the wireform solid demarcated and point-like entity geographical entity; Enquiry module, described enquiry module is for inquiring about the position of wireform solid and point-like entity; Described demarcating module comprises wireform solid unit, for demarcating the geographic position of wireform solid; Point-like solid element, for demarcating the geographic position of point-like entity, the geographic position of the point-like entity of described demarcation comprises the geographic position with the geographic position of the first wireform solid of the immediate south-north direction of described point-like entity and the demarcation with immediate the second east-west wireform solid of described point-like entity.
The trend of described wireform solid comprises south-north direction and east-west.
Described wireform solid unit is also for setting wireform solid coding, and described wireform solid is encoded to comprise and moved towards zone bit and relative position number; The relative position number of described wireform solid, adjoins time increase in the south eastwards, from north orientation from west.
Described point-like solid element is also for demarcating the geographic position of described point-like entity, comprise the geographic position determined with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity; Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
Described point-like solid element is also for setting point-like entity coding V, wherein V=(X, Y), X comprises described first linear entity coding X1, distinguishes described point-like entity at the east of described first wireform solid or the first zone bit X2 in west and the first relative position number X3 of described point-like entity; Y comprises described second wireform solid coding Y1, distinguishes described point-like entity at the south of described second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity; When described X1 is identical, described point-like entity first relative position number X3 increases eastwards successively by from west; When described Y1 is identical, described point-like entity second relative position number Y3 is by adjoining time increase in the south from north orientation.
The invention has the beneficial effects as follows:
(1) in the present invention, demarcated by the relative position relation between point-like entity and wireform solid, it does not rely on existing generalized information system, convenient manual input, and has good extendability and reliability.
(2) Linear Entity in the present invention is by determining that it moves towards, and the Linear Entity for same trend determines its relative position eastwards or from north orientation south according to from west, makes the coding of Linear Entity simple, practical and is easy to inquiry.
(3) the point-like entity in the present invention is encoded according to its immediate Linear Entity, and distinguishes the position relation of itself and Linear Entity, thus easily realizes the inquiry of point-like entity.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of a kind of embodiment of generalized information system of the present invention;
Fig. 2 is the process flow diagram of a kind of embodiment of the inventive method;
Fig. 3 illustrates wireform solid according to another embodiment of the inventive method and point-like provider location relation schematic diagram.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Wireform solid involved in the present invention refers to but is not limited to road, river, pipeline etc. in a linear class entity in generalized information system, and point-like entity refers to but is not limited to the class entity in point-like in generalized information system such as buildings, community, park.Lateral reference position in the present invention refers to the relative position of geographical entity (comprising above-mentioned wireform solid and point-like entity) on east-west, and longitudinal reference position refers to the relative position of geographical entity on south-north direction.
Core of the present invention adopts a kind of geographic position scaling method towards geographical entity, the method belongs to the scaling method of the data model towards geographical entity with certain topological relation, solves the problem of relative position relation between point-like entity and point-like entity, between point-like entity and wireform solid, between wireform solid and wireform solid by this scaling method.
Generalized information system of the present invention, its a kind of embodiment, as shown in Figure 1, comprising: demarcating module, and described demarcating module is used for demarcating the geographic position of wireform solid and point-like entity; Memory module, described memory module is used for storing the position of the wireform solid demarcated and point-like entity geographical entity; Enquiry module, described enquiry module is for inquiring about the position of wireform solid and point-like entity; Described demarcating module comprises wireform solid unit, for demarcating the geographic position of wireform solid; Point-like solid element, for demarcating the geographic position of point-like entity, the geographic position of the point-like entity of described demarcation comprises the geographic position with the geographic position of the first wireform solid of the immediate south-north direction of described point-like entity and the demarcation with immediate the second east-west wireform solid of described point-like entity.
The trend of wireform solid can define as required, and in this embodiment, the trend of wireform solid comprises south-north direction and east-west.If wireform solid has radian or inclination, can according to itself and horizontal line angle, determine that wireform solid moves towards, in one embodiment, can by when wireform solid and horizontal angle be less than or equal to 45° angle, be set as east-west, when wireform solid and horizontal angle are greater than 45° angle, be set as south-north direction.
In one embodiment, this wireform solid unit is also for setting wireform solid coding, and wireform solid is encoded to comprise and moved towards zone bit and relative position number; The relative position number of wireform solid, adjoins time increase in the south eastwards, from north orientation from west.If wireform solid south-north direction, then increase successively eastwards, from the southern described wireform solid numbering of north orientation from west; If wireform solid is east-west, then from north orientation south, from west, described wireform solid numbering increases successively eastwards.In another embodiment, the relative position number of wireform solid, also can adjoin time reduction in the south eastwards, from north orientation from west.If i.e. wireform solid south-north direction, also can reduce successively eastwards, from north orientation south numbering from west; If wireform solid is east-west, then from north orientation south, to number eastwards from west and reduce successively.
In one embodiment, point-like solid element also for, demarcate the geographic position of described point-like entity, comprise the geographic position determined with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity;
Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
In one embodiment, point-like entity module is also for setting point-like entity coding V, wherein V=(X, Y), X comprises the first linear entity coding X1, distinguishes point-like entity at the east of the first wireform solid or the first zone bit X2 in west and the first relative position number X3 of point-like entity; Y comprises the second wireform solid coding Y1, distinguishes point-like entity at the south of the second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of point-like entity; When X1 is identical, the first relative position number X3 of point-like entity increases eastwards successively by from west; When Y1 is identical, the second relative position number Y3 of point-like entity is by adjoining time increase in the south from north orientation.
Generalized information system of the present invention, be wireform solid and point-like entity design coding rule, every bar wireform solid, according to this rule encoding, this defines the relative position relation between wireform solid and wireform solid.Each point-like entity in linear physical network always closer to certain two crossing wireform solids, so the position of this point-like entity can represent with the lateral reference position of the coding based on these two wireform solids and longitudinal reference position, this defines the relative position relation between certain point-like entity and certain wireform solid, thus determine the position relationship between all point-like entities.Data in generalized information system of the present invention do not rely on existing GIS product, can according to definition manual input easily, and convenient expansion, reliability is high.
With wireform solid for road, point-like entity is for building, this coding can solve similar but be not limited to the problem such as " having which house between A road and B road ", " which community the crossing on A road and B road has ", " to the east of A road, having which community on the south B road ", the price of community " near the A road ", " near W building, other Building Checks Price is how many ", " from A road to B road how to get to ".
The geographic position of a kind of generalized information system of the present invention is demarcated and querying method, and its a kind of embodiment, as shown in Figure 2, comprising:
Step 202: the geographic position of wireform solid and point-like entity is demarcated; Wherein, the geographic position of the wireform solid of demarcation comprises trend and the relative position of described wireform solid; The geographic position of the point-like entity demarcated comprises, with the geographic position of the immediate wireform solid of described point-like entity, and the relative position of described point-like entity.
Step 204: the position of the wireform solid demarcated and point-like entity geographical entity is stored;
Step 206: the geographic position of inquiry wireform solid and point-like entity.
In a kind of embodiment of the inventive method, the trend of described wireform solid comprises south-north direction and east-west, if wireform solid has radian or inclination, according to itself and horizontal line angle, can determine that wireform solid moves towards, in one embodiment, can by when wireform solid and horizontal angle be less than or equal to 45° angle, being set as east-west, when being greater than 45° angle when wireform solid and horizontal angle, being set as south-north direction.
In a kind of embodiment of the inventive method, wherein carry out demarcation to the geographic position of wireform solid and comprise: setting wireform solid coding, described wireform solid is encoded to comprise and is moved towards zone bit and relative position number; The relative position number of described wireform solid adjoins time increase in the south eastwards, from north orientation from west.The relative position number of wireform solid adjoins time increase in the south eastwards, from north orientation from west.In a kind of embodiment, if wireform solid south-north direction, then increase successively eastwards, from north orientation south wireform solid numbering from west; If wireform solid is east-west, then from north orientation south, from west, described wireform solid numbering increases successively eastwards.
In a kind of embodiment of the inventive method, wherein carry out demarcation to the geographic position of point-like entity to comprise: determine the geographic position with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity;
Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
In a kind of embodiment of the inventive method, wherein carry out demarcation to the geographic position of point-like entity to comprise: setting point-like entity coding V, wherein V=(X, Y), X comprises the first linear entity coding X1, distinguishes point-like entity at the east of the first wireform solid or the first zone bit X2 in west and the first relative position number X3 of point-like entity; Y comprises the second wireform solid coding Y1, distinguishes point-like entity at the south of the second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of point-like entity; When X1 is identical, point-like entity first relative position number X3 increases eastwards successively by from west; When Y1 is identical, point-like entity second relative position number Y3 is by adjoining time increase in the south from north orientation.
Below by a kind of embodiment, the present invention will be described.Point-like entity can represent based on two wireform solids pressed close to it, encodes respectively to the carrying out of wireform solid and point-like entity:
(1) wireform solid is encoded
Need to store m (m is positive integer) position coding to the location of wireform solid.Determine that wireform solid is east-west or the needs of south-north direction one move towards zone bit, if east-west, this moves towards zone bit can be 1, if south-north direction, this moves towards zone bit can be 2.In order to determine the position between wireform solid and wireform solid, need m-1 bit line shape entity number.If east-west wireform solid, this wireform solid numbering front n bit flag by this wireform solid in North and South direction, from north orientation south occur order and determine, the rear k bit flag of this wireform solid numbering by this wireform solid in same lateral reference position, the order occurred from west to east and determining.If the wireform solid of south-north direction, front n bit flag is by this wireform solid place east-west direction, and the order occurred eastwards from west and determining, rear k bit flag is by this wireform solid in same longitudinal reference position, and the order occurred by north orientation south is determined.Wherein m, n, k meet m=1+n+k, and the size of n, k is determined by the scale of linear network.
The wireform solid of south-north direction, wireform solid numbering increases progressively successively, east-west wireform solid on map from west eastwards, and from north orientation south, wireform solid numbering increases progressively successively.If wireform solid has radian or inclination, according to itself and horizontal line angle, determine that wireform solid moves towards.
Same longitudinal reference position, between the wireform solid of different south-north direction, by north orientation south, wireform solid numbering increases progressively successively, same lateral reference position, and between different east-west wireform solid, from west to east, wireform solid numbering increases progressively successively.
(2) point-like entity is encoded
Certain point-like entity, always closest between two wireform solids, is so just defined horizontal stroke/longitudinal reference position of this point-like entity, is determined the position of point-like entity by horizontal stroke/longitudinal reference position based on the coding of these two wireform solids.
The lateral reference position of point-like entity is exactly after the coding of an east-west wireform solid immediate apart from it, the relative position of additional point-like entity in all point-like entities near this wireform solid, different point-like entity, from west to east, lateral reference position increases gradually.
Longitudinal reference position of point-like entity is exactly after the coding of the wireform solid of a south-north direction immediate apart from it, additional point-like entity relative position in all point-like entities near this wireform solid, different point-like entity, by north orientation south, longitudinal reference position increases gradually.
Point-like entity coding V, wherein V=(X, Y), X represent longitudinal reference position, Y represents lateral reference position, X and Y all has m+w (m, w are positive integer) position.
X: determine that point-like entity need use the m position of wireform solid to encode near the wireform solid of which bar south-north direction, determine the relative position of point-like entity around same wireform solid, w position need be used to encode, under same wireform solid, different point-like entity is from north orientation south, and behind longitudinal reference position, w position increases successively.
Y: determine that point-like entity need use the m position of wireform solid to encode near the wireform solid which bar is east-west, determine the relative position of point-like entity around same wireform solid, w position need be used to encode, under same wireform solid, from west eastwards, behind lateral reference position, w position increases different point-like entity successively.
Maximum point-like number of entities that wherein w size is had by wireform solid limit any in whole wireform solid network determine.Wireform solid and point-like entity may be increased newly, so answer vacant coding enough when setting up coded system, in case when increasing, to a large amount of changes of existing coding under actual conditions.
According to an embodiment of the inventive method, X and Y of each point-like entity is m position (above-mentioned m bit line shape entity coding)+n position when computing.If the wireform solid of south-north direction, after the Y of the point-like entity on the wireform solid left side, from 0......01, (end is 1 in n position, all the other positions are 0) start, after the Y of the point-like entity on the right of wireform solid, from 50......1, (first place is 5 in n position, position, end is 1, all the other positions are 0) start coding, from west, sequence number increases successively eastwards; If east-west wireform solid, after the X of the point-like entity on the wireform solid north, from 0......01, (last position is 1 in n position, all the other positions are 0) start coding, after the X of the point-like entity in wireform solid south, from 50......01, (first place is 5 in n position, certain position is 1, remaining position is 0) start coding, increase successively from north orientation south sequence number.
(3) to the storage of wireform solid crossing
Although more than coding makes geographical entity can compare on horizontal stroke/longitudinal direction, but still all intersection points that will record between wireform solid and wireform solid just can obtain whole wireform solid network topological diagram.
So in the process of carrying out wireform solid coding, record all wireform solid intersection points with the form of two tuples (wireform solid A encodes, and wireform solid B encodes) hereof.
According to an embodiment of the inventive method, after the geographic position of generalized information system is demarcated, its store and the work such as inquiry as follows:
The physical store of A, coding
Wireform solid information is stored in a table (wireform solid information table), point-like entity coding (i.e. its (X, Y) located) is stored in another table (point-like entity information table).Sequence number can be discontinuous, vacates some sequence numbers in case the increase of wireform solid or point-like entity.Crossing is stored in file, and operation can than faster.
B, inquiry
Because coding method has consistance, therefore following type problem can be answered easily:
If A is certain wireform solid 1, B be wireform solid 2, C be point-like entity 1, D is point-like entity 2.
Which point-like entity is had: the coding of inquiry A, B between (a) A and B, judge A, B size, and judge that A, B are east-west or south-north direction respectively, if east-west, then inquire about the corresponding longitudinal reference position X of point-like entity coding table, if south-north direction, then inquire about its corresponding lateral reference position Y.Then in point-like entity information table, search for longitudinal reference position or lateral reference positional value meets those point-like entities in scope belonging to A, B.
Which point-like entity (b) A and B crossing has: the coding of inquiry A, B, judge that A, B are east-west or south-north direction respectively, if east-west, then inquire about the corresponding longitudinal reference position X of point-like entity list, if south-north direction, then inquire about corresponding lateral reference position Y.Then search in point-like entity information table longitudinal reference position X and lateral reference positional value Y meet X near horizontal wireform solid, Y is positioned at those point-like entities near longitudinal wireform solid.
To the east of (c) A, on the south B: the coding of inquiry A, B, judges that A, B are east-west or south-north direction respectively, if east-west, then inquire about the corresponding longitudinal reference position X of point-like entity information table, if south-north direction, then inquire about corresponding lateral reference position Y.Know after judgement that condition is " to the east of ", " on the south ", then in point-like entity information table, search for lateral reference position X and value Y place, longitudinal reference position record, wherein meet X > A and to encode and Y > B encodes.
D () A to B how to get to: the coding of inquiry A, B, reads all intersection point information, preserve these two tuples, thus obtain the topological structure of wireform solid net in internal memory with matrix from wireform solid intersection point file, and back-track algorithm can be adopted to solve routing problem.
E community near () C/A: the coding of inquiry C/A, returns the point-like entity near this coding.
Fig. 3 illustrates wireform solid according to another embodiment of the inventive method and point-like provider location relation schematic diagram, for this position relationship, wherein m=5, n=2, k=2, w=3, in present embodiment, not leave a blank in advance coding, in actual use, coding of can leaving a blank in advance as required.Coding in this example is as follows:
Wireform solid:
A (solid line): 10101
B (solid line): 10201
C (solid line): 10301
A ' (dotted line): 10102
B ' (dotted line): 10202
C ' (dotted line): 10302
D (solid line): 20101
E (solid line): 20201
F (dotted line): 20202
Point-like entity:
1：(20101001，10101001)
2：(20101501，10101502)
3：(20201001，10101501)
4：(20201501，10102501)
5：(20201502，10202001)
6：(20202501，10202501)
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. the geographic position of generalized information system is demarcated and a querying method, it is characterized in that, comprises the following steps:
The geographic position of wireform solid and point-like entity is demarcated;
The position of the wireform solid demarcated and point-like entity geographical entity is stored;
The position of inquiry wireform solid and point-like entity;
Wherein, the geographic position of the wireform solid of demarcation comprises trend and the relative position of described wireform solid; The geographic position of the point-like entity demarcated comprises, with the geographic position of the immediate wireform solid of described point-like entity, and the relative position of described point-like entity;
The trend of described wireform solid comprises south-north direction and east-west;
The described geographic position to wireform solid is carried out demarcation and is comprised setting wireform solid coding, and described wireform solid is encoded to comprise and moved towards zone bit and relative position number; The relative position number of described wireform solid adjoins time increase in the south eastwards, from north orientation from west;
Carry out demarcation to the geographic position of described point-like entity to comprise: determine the geographic position with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity;
Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
2. the method for claim 1, is characterized in that, the described geographic position to point-like entity is carried out demarcation and comprised:
Setting point-like entity coding V, wherein V=(X, Y), X comprises described first linear entity coding X1, distinguishes described point-like entity at the east of described first wireform solid or the first zone bit X2 in west and the first relative position number X3 of described point-like entity; Y comprises described second wireform solid coding Y1, distinguishes described point-like entity at the south of described second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity;
When described X1 is identical, described point-like entity first relative position number X3 increases eastwards successively by from west;
When described Y1 is identical, described point-like entity second point-like entity number Y3 is by adjoining time increase in the south from north orientation.
3. a generalized information system, is characterized in that, comprising: demarcating module, and described demarcating module is used for demarcating the geographic position of wireform solid and point-like entity; Memory module, described memory module is used for storing the position of the wireform solid demarcated and point-like entity geographical entity; Enquiry module, described enquiry module is for inquiring about the position of wireform solid and point-like entity; Described demarcating module comprises wireform solid unit, for demarcating the geographic position of wireform solid; Point-like solid element, for demarcating the geographic position of point-like entity, the geographic position of the point-like entity of described demarcation comprises the geographic position with the geographic position of the first wireform solid of the immediate south-north direction of described point-like entity and the demarcation with immediate the second east-west wireform solid of described point-like entity;
The trend of described wireform solid comprises south-north direction and east-west;
Described wireform solid unit is also for setting wireform solid coding, and described wireform solid is encoded to comprise and moved towards zone bit and relative position number; The relative position number of described wireform solid, adjoins time increase in the south eastwards, from north orientation from west;
Described point-like solid element is also for demarcating the geographic position of described point-like entity, comprise the geographic position determined with the first wireform solid of the immediate south-north direction of described point-like entity, determine that described point-like entity is in the east of described first wireform solid or west, according to described point-like entity other point-like entity in the same side, set the first relative position of described point-like entity; Determine the geographic position of immediate the second east-west wireform solid with described point-like entity, determine that described point-like entity is on the south of described second wireform solid or the north, according to described point-like entity other point-like entity in the same side, set the second relative position of described point-like entity.
4. system as claimed in claim 3, it is characterized in that, described point-like solid element is also for setting point-like entity coding V, wherein V=(X, Y), X comprises described first linear entity coding X1, distinguishes described point-like entity at the east of described first wireform solid or the first zone bit X2 in west and the first relative position number X3 of described point-like entity; Y comprises described second wireform solid coding Y1, distinguishes described point-like entity at the south of described second wireform solid or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity; When described X1 is identical, described point-like entity first relative position number X3 increases eastwards successively by from west; When described Y1 is identical, described point-like entity second relative position number Y3 is by adjoining time increase in the south from north orientation.
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| US6697752B1 (en) * | 2000-05-19 | 2004-02-24 | K&L Technologies, Inc. | System, apparatus and method for testing navigation or guidance equipment |
| CN1556375A (en) * | 2004-01-08 | 2004-12-22 | 陈阿林 | Method of proceeding coding designation against city and peripheral region geographical addressing object |
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| US6697752B1 (en) * | 2000-05-19 | 2004-02-24 | K&L Technologies, Inc. | System, apparatus and method for testing navigation or guidance equipment |
| CN1556375A (en) * | 2004-01-08 | 2004-12-22 | 陈阿林 | Method of proceeding coding designation against city and peripheral region geographical addressing object |
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| 基于GIS的城市道路编码算法实现与系统开发;何波等;《交通与计算机》;20081231;第26卷(第6期);第170-174页 * |
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