CN102253932A - Geographic information system (GIS) and geographic position calibrating and querying method thereof - Google Patents
Geographic information system (GIS) and geographic position calibrating and querying method thereof Download PDFInfo
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Abstract
The invention discloses a geographic position calibrating and querying method for a geographic information system (GIS). The method comprises the following steps of: calibrating geographic positions of a linear entity and a point entity; storing the positions of calibrated geographic entities such as the linear entity and the point entity; and querying the positions of the linear entity and the point entity, wherein the geographic position of the calibrated linear entity comprises the orientation and the relative position of the linear entity; and the geographic position of the calibrated point entity comprises the geographic position of a linear entity which is closest to the point entity, and the relative position of the point entity. The invention further discloses the geographic information system (GIS). In the method, the geographic position is calibrated according to the relative position relationship between the point entity and the linear entity, and the method does not depend on the conventional GIS; manual input is convenient to realize; and the method has high expandability and reliability.
Description
Technical field
The present invention relates to a kind of generalized information system and geographic position thereof demarcates and querying method.
Background technology
(Geographic Information System: be the computer system of handling input, output, management, inquiry, analysis and the aid decision making of geodata Geographic Information System), basic fundamental is database, map visualization and spatial analysis to GIS.
With regard to the GIS conceptual data model, mainly contain two big classes at present: topological relation data model and towards the data model of entity, wherein the topological relation data model is widely used in the 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 efficient aspect of single entity inquiry, topology inquiry is each has something to recommend him.
The topological relation data model is to be basic organization and to store each geometric element with " arc-node-polygon " such topological relation, is characterized in that with the topological connection relation between point, line, surface be the center, and their coordinate storage has dependence.The major advantage of this model is that the topological relation of storing in advance in the system can effectively improve the efficient of system aspect topology inquiry and network analysis, but it is not high to single geographical physical operation efficient, 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.
Towards the model of entity is that this model internal data also can be set up topological structure, but does not have dependence between the storage of the coordinate of object with the single space and geographical entity base unit that is data organization and storage.This model has conveniently sets up complicated geographical entity, makes things convenient for advantages such as system maintenance and expansion.But its topological relation needs interim foundation, and dynamic segmentation network analysis efficient is low, and inter-entity common point and common edge repeated storage are difficult to management, analysis and processing are navigated to the geometric element one-level.
The localization of coding can be adopted two kinds of methods, and a kind of is to use the interface that existing GIS software provides, derived data, and this method depends on its GIS software of using.Another kind method is to create the coding of oneself, some method is directly with the data part of number as the demarcation situation of building in constructive process, although China's number has from east to west, increase gradually from south to north, distinguish the coding rule of both sides, street with odd or even number, but because the part number is actual and do not meet its definition rule, if we indiscriminately imitate typing and obtain the location of building with respect to the street, just become dirty data.
Summary of the invention
The main technical problem to be solved in the present invention is to provide 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, may further comprise the steps:
Geographic position to wireform solid and point-like entity is demarcated;
The wireform solid of demarcation and the position of point-like entity geographical entity are stored;
The position of inquiry wireform solid and point-like entity;
Wherein, the geographic position of the wireform solid of demarcation comprises the trend and the relative position of described wireform solid; The geographic position of the point-like entity of demarcating 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.
Described geographic position to wireform solid is demarcated and is comprised and set the wireform solid coding, and described wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of described wireform solid from the west eastwards, adjoin in the south time from north orientation and to increase.
The geographic position of described point-like entity demarcated comprise: determine geographic position with first wireform solid of the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity; Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
Described geographic position to the point-like entity is demarcated and is comprised: set point-like entity coding V, V=(X wherein, Y), X comprises described first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of described point-like entity of described point-like entity at described first wireform solid; Y comprises described second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity of described point-like entity at described second wireform solid; When described X1 was identical, the described point-like entity first relative position number X3 was by increasing successively eastwards from the west; When described Y1 was identical, described point-like entity second point-like entity numbering Y3 was by adjoin time increase in the south from north orientation.
A kind of generalized information system comprises: demarcating module, described demarcating module are used for the geographic position of wireform solid and point-like entity is demarcated; Memory module, described memory module are used for the wireform solid of demarcating and the position of point-like entity geographical entity are stored; Enquiry module, described enquiry module are used to inquire about the position of wireform solid and point-like entity; Described demarcating module comprises the wireform solid unit, is used for the geographic position of wireform solid is demarcated; The point-like solid element, be used for the geographic position of point-like entity is demarcated, the geographic position of the point-like entity of described demarcation comprise with the geographic position of first wireform solid of the immediate south-north direction of described point-like entity and with the geographic position of the demarcation of immediate east-west second wireform solid of described point-like entity.
The trend of described wireform solid comprises south-north direction and east-west.
Described wireform solid unit also is used to set wireform solid coding, and described wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of described wireform solid, from the west eastwards, adjoin in the south time from north orientation and to increase.
Described point-like solid element also is used to demarcate the geographic position of described point-like entity, the geographic position that comprises first wireform solid of definite and the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity; Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
Described point-like solid element also is used to set point-like entity coding V, V=(X wherein, Y), X comprises described first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of described point-like entity of described point-like entity at described first wireform solid; Y comprises described second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity of described point-like entity at described second wireform solid; When described X1 was identical, the described point-like entity first relative position number X3 was by increasing successively eastwards from the west; When described Y1 was identical, the described point-like entity second relative position number Y3 was by adjoin time increase in the south from north orientation.
The invention has the beneficial effects as follows:
(1) among the present invention, demarcate by the relative position relation between point-like entity and the wireform solid, it does not rely on existing generalized information system, convenient manual input, and have favorable expansibility and reliability.
(2) Linear Entity among the present invention is by determining its trend, according to determining its relative position eastwards or from north orientation south from the west, makes that the coding of Linear Entity is simple, practical and be easy to inquiry for the Linear Entity of same trend.
(3) the point-like entity among the present invention is encoded according to its immediate Linear Entity, and distinguishes the position relation of itself and Linear Entity, thereby easily realizes the inquiry of point-like entity.
Description of drawings
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 according to the wireform solid of another embodiment of the inventive method and point-like provider location and concerns synoptic diagram.
Embodiment
In conjunction with the accompanying drawings the present invention is described in further detail below by embodiment.
Related wireform solid refers to but is not limited to road, river, pipeline etc. be a linear class entity in generalized information system among the present invention, and the point-like entity refers to but is not limited to buildings, sub-district, park etc. are point-like in generalized information system a class entity.Lateral reference position among the present invention refers to the relative position of geographical entity (comprising above-mentioned wireform solid and point-like entity) on east-west, and vertically the reference position refers to the relative position of geographical entity on south-north direction.
Core of the present invention is to adopt a kind of geographic position scaling method towards geographical entity, this method belongs to the scaling method towards the data model of geographical entity with certain topological relation, can solve between point-like entity and the point-like entity by this scaling method, the problem of relative position relation between point-like entity and the wireform solid, between wireform solid and the wireform solid.
Generalized information system of the present invention, its a kind of embodiment as shown in Figure 1, comprising: demarcating module, described demarcating module are used for the geographic position of wireform solid and point-like entity is demarcated; Memory module, described memory module are used for the wireform solid of demarcating and the position of point-like entity geographical entity are stored; Enquiry module, described enquiry module are used to inquire about the position of wireform solid and point-like entity; Described demarcating module comprises the wireform solid unit, is used for the geographic position of wireform solid is demarcated; The point-like solid element, be used for the geographic position of point-like entity is demarcated, the geographic position of the point-like entity of described demarcation comprise with the geographic position of first wireform solid of the immediate south-north direction of described point-like entity and with the geographic position of the demarcation of immediate east-west second 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 be according to itself and horizontal line angle, determine the wireform solid trend, in one embodiment, can be with when wireform solid and horizontal angle during smaller or equal to 45, be set at east-westly,, be set at south-north direction when wireform solid and horizontal angle during greater than 45.
In one embodiment, this wireform solid unit also is used to set wireform solid coding, and the wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of wireform solid, from the west eastwards, adjoin in the south time from north orientation and to increase.If the wireform solid south-north direction, then eastwards, described wireform solid numbering increases successively from north orientation south from the west; If wireform solid is east-west, then from north orientation south, described eastwards wireform solid numbering increases successively from the west.In another embodiment, the relative position number of wireform solid, also can be from the west eastwards, adjoin in the south from north orientation and time to reduce.If be the wireform solid south-north direction, also can be from the west eastwards, reduce successively from north orientation south numbering; If wireform solid is east-west, then from north orientation south, number successively eastwards from the west and to reduce.
In one embodiment, the point-like solid element also is used for, demarcate the geographic position of described point-like entity, the geographic position that comprises first wireform solid of definite and the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity;
Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
In one embodiment, the point-like entity module also is used to set point-like entity coding V, wherein V=(X, Y), X comprises first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of point-like entity of point-like entity at first wireform solid; Y comprises second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of point-like entity of point-like entity at second wireform solid; When X1 was identical, the first relative position number X3 of point-like entity was by increasing successively eastwards from the west; When Y1 was identical, the second relative position number Y3 of point-like entity was by adjoin time increase in the south from north orientation.
Generalized information system of the present invention is wireform solid and coding rule of point-like entity design, and every wireform solid is according to this rule encoding, and this has just determined the relative position relation between wireform solid and the wireform solid.Each point-like entity always more approaches certain two crossing wireform solid in linear physical network, so can using based on the lateral reference position of the coding of these two wireform solids and vertical reference position, the position of this point-like entity represents, this has just determined the relative position relation between certain point-like entity and certain the bar wireform solid, thereby has determined the position relation between all point-like entities.Data in the generalized information system of the present invention do not rely on existing GIS product, can be according to the manual easily input of definition, convenient expansion, reliability height.
With wireform solid is example with the road, the point-like entity is example with the building, this coding can solve similar but be not limited near problems such as " between A road and the B road which house being arranged ", " which sub-district the crossing on A road and B road has ", " to the east of the A road, which sub-district being arranged on the south the B road ", " near the price of the sub-district A road ", " how many other building prices is the W building ", " from the A road to the 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 to wireform solid and point-like entity is demarcated; Wherein, the geographic position of the wireform solid of demarcation comprises the trend and the relative position of described wireform solid; The geographic position of the point-like entity of demarcating 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 wireform solid of demarcation and the position of point-like entity geographical entity are 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, can determine the wireform solid trend, in one embodiment according to itself and horizontal line angle, can be with when wireform solid and horizontal angle during smaller or equal to 45, be set at east-westly,, be set at south-north direction when when wireform solid and horizontal angle during greater than 45.
In a kind of embodiment of the inventive method, wherein the geographic position of wireform solid is demarcated and comprised: set the wireform solid coding, described wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of described wireform solid from the west eastwards, adjoin in the south time from north orientation and to increase.The relative position number of wireform solid from the west eastwards, adjoin in the south time from north orientation and to increase.In a kind of embodiment, if the wireform solid south-north direction, then eastwards, increase successively from north orientation south wireform solid numbering from the west; If wireform solid is east-west, then from north orientation south, described eastwards wireform solid numbering increases successively from the west.
In a kind of embodiment of the inventive method, wherein the geographic position of point-like entity is demarcated and comprised: determine geographic position with first wireform solid of the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity;
Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
In a kind of embodiment of the inventive method, wherein the geographic position of point-like entity is demarcated and comprised: set point-like entity coding V, V=(X wherein, Y), X comprises first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of point-like entity of point-like entity at first wireform solid; Y comprises second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of point-like entity of point-like entity at second wireform solid; When X1 was identical, the point-like entity first relative position number X3 was by increasing successively eastwards from the west; When Y1 was identical, the point-like entity second relative position number Y3 was by adjoin time increase in the south from north orientation.
Below by a kind of embodiment, the present invention will be described.The point-like entity can represent based on two wireform solids pressing close to it, respectively encoding to wireform solid and point-like entity:
(1) wireform solid is encoded
Need store m (m is a positive integer) position coding to the location of wireform solid.Determine that wireform solid is east-west or one of the needs of south-north direction 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 the wireform solid, need m-1 bit line shape entity numbering.If east-west wireform solid, the preceding n bit flag of this wireform solid numbering by this wireform solid on North and South direction, decide from the southern order that occurs of north orientation, the back k bit flag of this wireform solid numbering by this wireform solid in same lateral reference position, the order of Chu Xianing and deciding from west to east.If the wireform solid of south-north direction, preceding n bit flag is by on this wireform solid place east-west direction, the order that occurs eastwards from the west and deciding, and back k bit flag, is decided by the order that north orientation south occurs in same vertical reference position by this wireform solid.Wherein m, n, k satisfy m=1+n+k, and n, and the size of k is by the scale decision of linear network.
The wireform solid of south-north direction, from the west eastwards, the wireform solid numbering increases progressively successively on the map, east-west wireform solid, from north orientation south, the wireform solid numbering increases progressively successively.If wireform solid has radian or inclination,, determine the wireform solid trend according to itself and horizontal line angle.
Same vertical reference position, between the wireform solid of different south-north directions, by north orientation south, the wireform solid numbering increases progressively successively, same lateral reference position, between the different east-west wireform solids, from west to east, the wireform solid numbering increases progressively successively.
(2) the point-like entity is encoded
Certain point-like entity always approaches most between two wireform solids, so just defines horizontal stroke/vertical reference position of this point-like entity based on the coding of these two wireform solids, determines the position of point-like entity by horizontal/vertical reference position.
The lateral reference position of point-like entity is exactly behind the coding of the immediate east-west wireform solid apart from it, the relative position of additional point-like entity in close all point-like entities of this wireform solid, different point-like entities, from west to east, the lateral reference position increases gradually.
Vertical reference position of point-like entity is exactly behind the coding of the wireform solid of an immediate south-north direction apart from it, additional point-like entity is relative position in close all point-like entities of this wireform solid, different point-like entities, by north orientation south, vertically the reference position increases gradually.
Point-like entity coding V, wherein V=(X, Y), on behalf of vertical reference position, Y, X represent the lateral reference position, X and Y all have m+w (m, w are positive integer).
X: determine that the point-like entity need use the m position coding of wireform solid near the wireform solid of which bar south-north direction, determine the same wireform solid relative position of point-like entity on every side, need to use w position coding, different point-like entities are from north orientation south under the same wireform solid, and vertically the w position increases successively behind the reference position.
Y: determine that the point-like entity need use the m position coding of wireform solid near the east-west wireform solid of which bar, determine the same wireform solid relative position of point-like entity on every side, need to use w position coding, under the same wireform solid different point-like entities from the west eastwards, the w position increases successively behind the lateral reference position.
Wherein the w size is determined by maximum point-like number of entities that any linear solid edge in the whole wireform solid network has.May increase wireform solid and point-like entity under the actual conditions newly, thus should vacant enough codings when setting up coded system, in case when increasing, to a large amount of changes of existing coding.
According to an embodiment of the inventive method, the X of each point-like entity and Y are m position (above-mentioned m bit line shape entity coding)+n position when computing.If the wireform solid of south-north direction, (end is 1 from 0......01 in the n position behind the Y of the point-like entity on the wireform solid left side, all the other positions are 0) beginning, (first place is 5 from 50......1 in the n position behind the Y of the point-like entity on wireform solid the right, the position, end is 1, all the other positions are 0) begin coding, sequence number increases successively eastwards from the west; If east-west wireform solid, (end position is 1 from 0......01 in the n position behind the X of the point-like entity on the wireform solid north, all the other positions are 0) begin to encode, (first place is 5 from 50......01 in the n position behind the X of the point-like entity in wireform solid south, certain position is 1, surplus position is 0) begin coding, increase successively from north orientation south sequence number.
(3) to the storage of wireform solid crossing
Though more than coding makes geographical entity can compare on horizontal stroke/longitudinal direction, but still all intersection points that will write down between wireform solid and the wireform solid just can obtain whole wireform solid network topological diagram.
So in the process of carrying out the wireform solid coding, note all wireform solid intersection points with the form of two tuples (wireform solid A coding, wireform solid B coding) hereof.
According to an embodiment of the inventive method, after demarcating for the geographic position of generalized information system, work such as its storage and inquiry are as follows:
The physical store of A, coding
In a table (wireform solid information table), ((X, Y)) that be its location usefulness is stored in another table (point-like entity information table) with point-like entity coding with the wireform solid information stores.Sequence number can be discontinuous, vacates some sequence numbers in case the increase of wireform solid or point-like entity.The crossing is stored in the file, and operation can be than faster.
B, inquiry
Because coding method has consistance, so can answer following type problem easily:
If A is certain wireform solid 1, B is a wireform solid 2, and C is a point-like entity 1, and D is a point-like entity 2.
(a) which point-like entity is arranged between A and the B: the coding of inquiry A, B, judge A, B size, and judge that A, B are respectively east-west or south-north directions, if it is east-west, then inquire about the corresponding vertically reference position X of point-like entity coding schedule, if south-north direction is then inquired about its corresponding lateral reference position Y.Then vertical reference position of search or lateral reference positional value satisfy those point-like entities in the scope under A, B in point-like entity information table.
(b) which point-like entity A and B crossing have: the coding of inquiry A, B, judge that A, B are respectively east-west or south-north directions,, then inquire about the corresponding vertically reference position X of point-like entity list if east-west, if south-north direction is then inquired about corresponding lateral reference position Y.Then in point-like entity information table search vertical reference position X and lateral reference positional value Y satisfy X near horizontal wireform solid, Y is positioned near those point-like entities vertical wireform solid.
(c) to the east of the A, on the south the B: the coding of inquiry A, B, judge that A, B are respectively east-west or south-north directions, if east-west, then inquire about the corresponding vertically reference position X of point-like entity information table, if south-north direction is then inquired about corresponding lateral reference position Y.Know after the judgement that condition is " to the east of ", " on the south ", then search lateral reference position X and vertical reference position value Y place record in point-like entity information table wherein satisfy X＞A coding and Y＞B coding.
(d) to B how to get to A: the coding of inquiry A, B, from wireform solid intersection point file, read all intersection point information, and preserve these two tuples with matrix in the internal memory, thereby obtain the topological structure of wireform solid net, can adopt back-track algorithm to solve routing problem.
(e) near the sub-district C/A: the coding of inquiry C/A, return near the point-like entity this coding.
Fig. 3 illustrates according to the wireform solid of another embodiment of the inventive method and point-like provider location and concerns synoptic diagram, for this position relation, and m=5 wherein, n=2, k=2, w=3 is in the present embodiment, the coding of not leaving a blank in advance, in actual use, the 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
The point-like entity:
1：(20101001，10101001)
2：(20101501，10101502)
3：(20201001，10101501)
4：(20201501，10102501)
5：(20201502，10202001)
6：(20202501，10202501)
Above content be in conjunction with concrete embodiment to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the geographic position of a generalized information system is demarcated and querying method, it is characterized in that, may further comprise the steps:
Geographic position to wireform solid and point-like entity is demarcated;
The wireform solid of demarcation and the position of point-like entity geographical entity are stored;
The position of inquiry wireform solid and point-like entity;
Wherein, the geographic position of the wireform solid of demarcation comprises the trend and the relative position of described wireform solid; The geographic position of the point-like entity of demarcating comprises, with the geographic position of the immediate wireform solid of described point-like entity, and the relative position of described point-like entity.
2. the method for claim 1 is characterized in that, the trend of described wireform solid comprises south-north direction and east-west.
3. method as claimed in claim 2 is characterized in that, described geographic position to wireform solid is demarcated and comprised and set the wireform solid coding, and described wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of described wireform solid from the west eastwards, adjoin in the south time from north orientation and to increase.
4. method as claimed in claim 3, it is characterized in that, the geographic position of described point-like entity demarcated comprise: determine geographic position with first wireform solid of the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity;
Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
5. method as claimed in claim 4 is characterized in that, described geographic position to the point-like entity is demarcated and comprised:
Set point-like entity coding V, wherein V=(X, Y), X comprises described first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of described point-like entity of described point-like entity at described first wireform solid; Y comprises described second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity of described point-like entity at described second wireform solid;
When described X1 was identical, the described point-like entity first relative position number X3 was by increasing successively eastwards from the west;
When described Y1 was identical, described point-like entity second point-like entity numbering Y3 was by adjoin time increase in the south from north orientation.
6. a generalized information system is characterized in that, comprising: demarcating module, described demarcating module are used for the geographic position of wireform solid and point-like entity is demarcated; Memory module, described memory module are used for the wireform solid of demarcating and the position of point-like entity geographical entity are stored; Enquiry module, described enquiry module are used to inquire about the position of wireform solid and point-like entity; Described demarcating module comprises the wireform solid unit, is used for the geographic position of wireform solid is demarcated; The point-like solid element, be used for the geographic position of point-like entity is demarcated, the geographic position of the point-like entity of described demarcation comprise with the geographic position of first wireform solid of the immediate south-north direction of described point-like entity and with the geographic position of the demarcation of immediate east-west second wireform solid of described point-like entity.
7. system as claimed in claim 6 is characterized in that the trend of described wireform solid comprises south-north direction and east-west.
8. system as claimed in claim 7 is characterized in that, described wireform solid unit also is used to set wireform solid coding, and described wireform solid coding comprises and moves towards zone bit and relative position number; The relative position number of described wireform solid, from the west eastwards, adjoin in the south time from north orientation and to increase.
9. system as claimed in claim 8, it is characterized in that, described point-like solid element also is used to demarcate the geographic position of described point-like entity, the geographic position that comprises first wireform solid of definite and the immediate south-north direction of described point-like entity, determine east or the west of described point-like entity at described first wireform solid, according to described point-like entity other point-like entity in the same side, set first relative position of described point-like entity; Determine geographic position with immediate east-west second wireform solid of described point-like entity, determine south or the north of described point-like entity at described second wireform solid, according to described point-like entity other point-like entity in the same side, set second relative position of described point-like entity.
10. system as claimed in claim 9, it is characterized in that, described point-like solid element also is used to set point-like entity coding V, V=(X wherein, Y), X comprises described first wireform solid coding X1, distinguishes east or the first zone bit X2 in west and the first relative position number X3 of described point-like entity of described point-like entity at described first wireform solid; Y comprises described second wireform solid coding Y1, distinguishes south or the second zone bit Y2 on the north and the second relative position number Y3 of described point-like entity of described point-like entity at described second wireform solid; When described X1 was identical, the described point-like entity first relative position number X3 was by increasing successively eastwards from the west; When described Y1 was identical, the described point-like entity second relative position number Y3 was by adjoin time increase in the south from north orientation.
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| CN201010174231.6A CN102253932B (en) | 2010-05-17 | 2010-05-17 | A kind of generalized information system and geographic position thereof are demarcated and querying method |
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| CN102253932B (en) | 2015-12-09 |
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