CN116450765A - Polymorphic geographic entity coding consistency processing method and system - Google Patents
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Abstract
The invention belongs to the technical field of geographic information, and particularly relates to a polymorphic geographic entity coding consistency processing method and system, wherein the method comprises the following steps: acquiring polymorphic geographic entity data; determining the form of the entity construction element according to the acquired entity data; screening different form elements of the same entity based on the determined entity construction element form; constructing different form elements of the same entity as the same entity, and uniquely identifying the same entity to generate an entity identification code; and assigning entity codes through the generated entity identification codes, so as to realize the consistency of the polymorphic identical geographic entity codes. The invention rapidly builds and accurately and rapidly judges the polymorphic elements belonging to the same entity through the batch of the geographic entities, the coding consistency of different form elements of the same geographic entity is realized; the automation level of the geographic entity construction is improved, and the geographic entity automatic construction is realized.
Description
Technical Field
The invention belongs to the technical field of geographic information, and particularly relates to a polymorphic geographic entity coding consistency processing method and system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the continuous development of basic mapping, various site test site works are developed successively, and the production of a geographic entity is essential in each test site work as the basic work of novel basic mapping. The production and construction of the geographic entity is a process of completing the materialization and judging which elements are the same entity, so how to identify and bind the elements in different forms (points/lines/planes/bodies) belonging to the same geographic entity is the key of the entity construction.
The inventor knows that the main methods of current entity construction include several methods of manual construction, semiautomatic construction, automatic construction, etc.: the manual construction mainly depends on operators to judge different component elements under the same entity, the production efficiency is relatively low, the manual construction excessively depends on understanding and knowledge experience of people, and construction results obtained by different operators can be different. Semi-automatic construction is mainly performed through automatic data conversion by a spatial data conversion processing system (FME), combines manual automatic construction, needs to be adjusted by combining a data scheme, and is higher in efficiency than manual construction, but relatively low in accuracy. The automatic construction is to take main elements as units, extract the elements in the main elements according to the range line, realize the construction of the geographic entity, have higher accuracy requirement on the range line, and have the accuracy dependent on the accuracy of the range line, so that the construction of the same geographic entity of the specified form element can not be realized accurately.
Disclosure of Invention
In order to solve the problems, the invention provides a polymorphic geographic entity coding consistency processing method and a polymorphic geographic entity coding consistency processing system, wherein in the novel basic mapping production process, polymorphic elements belonging to the same entity are rapidly judged through batch rapid construction and coding assignment accuracy of geographic entities, and coding consistency of different morphological elements of the same geographic entity is realized; the formalized expression of the entity construction rules is researched, and the entity construction rules are converted into workflow which can be identified and executed by a computer, so that the automation level of the geographic entity construction is improved, and the geographic entity automatic construction is realized.
According to some embodiments, a first aspect of the present invention provides a polymorphic geographic entity coding consistency processing method, which adopts the following technical scheme:
a polymorphic geo-entity code consistency handling method, comprising:
acquiring polymorphic geographic entity data;
determining the form of the entity construction element according to the acquired entity data;
screening different form elements of the same entity based on the determined entity construction element form;
constructing different form elements of the same entity as the same entity, and uniquely identifying the same entity to generate an entity identification code;
performing assignment of entity codes through the generated entity identification codes, and realizing the consistency of the polymorphic identical geographic entity codes.
As a further technical definition, in the process of determining the form of the entity construction element, determining the classification standard of the geographic entity data based on the obtained entity data, and designing a geographic entity data model to determine entity classification codes of different categories; and filtering the layers according to the determined classification standard of the entity data, and determining the form of the entity construction element.
Further, the entity classification code adopts 8-bit decimal digital codes.
Further, the geographic entity data model comprises a conceptual model and a data structure; the conceptual model comprises an expression form and an organization form of the geographic entity, and the data structure comprises a geographic entity attribute structure and a geographic entity relation.
Further, according to the determined form of the entity construction element, a geographic entity construction mode is determined by combining a designed geographic entity data model and a geographic entity construction rule, a multi-form element set is screened, different form elements belonging to the same entity are locked, and different form elements of the same entity are constructed as the same entity.
As a further technical limitation, according to the entity data model, construction rule configuration is carried out on each type of geographic entity, and corresponding construction rules are selected from a geographic entity construction rule library to form a complete entity construction scheme.
As a further technical limitation, after the different form elements are constructed into the same entity, generating a unique entity identification code; the entity identification codes are identity marks of the entities, the entity identification codes are assigned to all form elements forming the entity, and based on the consistency of entity feature codes of different form elements of the same entity, entity identification code attribute association is carried out to obtain association relations between polymorphic elements and geographic entities.
According to some embodiments, a second aspect of the present invention provides a polymorphic geographic entity coding consistency processing system, which adopts the following technical solutions:
a polymorphic geo-entity encoding consistency handling system, comprising:
an acquisition module configured to acquire polymorphic geographic entity data;
a determining module configured to determine an entity construction element morphology from the acquired entity data;
a screening module configured to screen different form elements of the same entity based on the determined entity construction element form;
the processing module is configured to construct different form elements of the same entity as the same entity, uniquely identify the constructed same entity and generate an entity identification code; and assigning entity codes through the generated entity identification codes, so as to realize the consistency of the polymorphic identical geographic entity codes.
Compared with the prior art, the invention has the beneficial effects that:
the invention is proposed for constructing the corresponding relation between the elements with different expression forms and the entities in the entity construction process, and can construct the elements with different forms into the same entity according to different entity construction requirements, and carry out entity coding assignment to realize the effects of different shapes but the same entity coding; the method has the advantages that the elements of different forms belonging to the same entity can be effectively and accurately identified, and the entity construction is automatically carried out, so that the condition that the entity construction is manually carried out is reduced, and the efficiency of the entity construction is improved; meanwhile, through the transfer inheritance of the entity unique identity code, the association relationship between the polymorphic element and the entity is realized, and the entity coding consistency of the polymorphic element under the same entity is further realized.
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The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate and explain the embodiments and together with the description serve to explain the embodiments.
FIG. 1 is a flow chart of a method for processing multi-modal geographic entity code consistency in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an entity construction effect in a first embodiment of the present invention;
FIG. 3 is a flow chart of entity-building element set selection in accordance with a first embodiment of the present invention;
FIG. 4 is a block diagram illustrating a multi-modal geo-entity code consistency handling system in accordance with a second embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Example 1
The first embodiment of the invention introduces a polymorphic geographic entity coding consistency processing method.
The traditional mapping abstracts the real world into a layer formed by points, lines and surface elements, and can show the spatial relationship among the elements, but the spatial target expressing the same entity is fragmented because the identification association among the elements is not established, so that the related spatial target is difficult to extract according to the entity. For example, a road, the traditional geometric element expression can only indicate that the road contains a road center line or a road side line or a road surface, and the road center line or the road side line or the road surface are not related with the road surface; the expression of the geographic entity means that the geographic entity can simultaneously comprise a plurality of elements such as a road center line, a road side line, a road surface and the like.
The expression of the geographic entity data consists of points, lines and surface elements, the processing method of the polymorphic identical geographic entity coding consistency is provided for carrying out corresponding relation construction between elements with different expression forms and the entities in the entity construction process, the elements with different forms can be constructed into the same entity according to different entity construction requirements, and entity coding assignment is carried out, so that the effect that different shapes but the same entity coding is realized, the river entity with the entity coding MA1001 … … 0000 comprises a river surface element and a river line element, and the entity coding of the surface element and the entity coding of the line element are MA1001 … … 0000.
A polymorphic geo-entity code consistency handling method as shown in fig. 1, comprising:
determining the constitution form of the entity, and rapidly locking the range of the multi-form elements through the consistency of entity classification codes;
carrying out rule screening in an entity construction rule base by combining with entity construction element forms, and rapidly locking a unique solution meeting the entity construction requirement under the corresponding form;
forming a complete entity construction scheme, and realizing the whole-graph batch rapid entity construction;
and locking elements in different forms in the same entity through entity unique codes, and uniformly carrying out entity coding assignment on the elements to realize the consistency of the multi-form same geographic entity codes.
As one or more embodiments, according to the geographic entity data classification standard (as shown in table 1), designing an entity data model, classifying different types of entities by combining the classification standard and the designed entity data model, further determining a geographic entity classification code, filtering a layer in an entity construction scheme according to a construction element layer corresponding to the entity in the classification standard, thereby determining the construction form of the entity, and then screening elements in the layer according to the same principle of the entity classification code, thereby rapidly locking element collection meeting the requirement, reducing the data quantity required to be compared for the subsequent entity construction, and further improving the efficiency of the entity construction.
In this embodiment, the entity data model includes conceptual models such as expression forms of points/lines/planes/volumes, organization forms of single entities/combined entities/aggregated entities, etc., and data structures such as attribute structures of basic attributes/proprietary attributes/extended attributes, and entity relationships of spatial/generic/temporal/geometric constitution.
In this embodiment, the entity classification code adopts 8-bit decimal digital codes, as shown in table 1, which are respectively a major class, a first class, a second class, a third class and a fourth class of codes arranged in sequence, wherein the first left is a major class code, 1 is a natural geographic entity, 2 is an artificial geographic entity, and 3 is a management geographic entity; the second bit from left is a first class code, and the identification of the first class basic geographic entity which corresponds to the sub-divided first class basic geographic entity on the basis of the major class is a digital code of 1-9; the third and fourth bits from left are secondary class codes, the corresponding secondary class basic geographic entity after subdivision on the primary class basis is marked, the digital codes are 01-99, and if the primary class has no corresponding secondary class, the codes are assigned with 00; the fifth and sixth bits from left are three-level class codes, the corresponding three-level class basic geographic entity after being subdivided on the basis of the second level class is marked as a digital code of 01-99, and if the second level class has no corresponding three-level class, the code is assigned with 00; the seventh and eighth bits from left are four-level class codes, the corresponding four-level class basic geographic entity after subdivision on the three-level class basis is marked as a digital code of 01-99, and if the three-level class has no corresponding four-level class, the code is assigned with 00.
TABLE 1 entity Classification criteria (section)
As one or more embodiments, the geographic entity data model is combined, the geographic entity construction mode is determined according to the entity construction requirement, and the selected polymorphic element set is further selected, so that different form elements belonging to the same entity are quickly locked, and are constructed as the same entity. And (3) through the induction of the characteristics of the entity data, forming an entity construction rule source, and constructing an entity construction rule according to the entity construction rule source. The geographic entity construction rule base provides expansion capability, and along with the continuous enrichment of data, the change of construction requirements is continuously enriched and perfected.
In this embodiment, the geographic entity data model includes a conceptual model and a data structure; wherein the conceptual model is mainly expressed form and organization form: the expression form of the geographic entity comprises four types of points, lines, planes and bodies. Points, lines, planes are solid forms expressed in two dimensions, and volumes are solid forms expressed in three dimensions. The same geographic entity can have different expression forms; there are three ways in which geographic entities may be organized: single entity, combined entity, aggregated entity. The data structure design mainly comprises an entity attribute structure and a geographic entity relation table design, wherein the geographic entity attribute comprises basic attributes, proprietary attributes and extension attributes, the basic attributes comprise attributes of all entities, including attributes such as geographic entity codes, geographic entity classification names and the like, the proprietary attributes refer to the attributes which are unique to each type of entity and are suitable for the characteristics of the entity, and the extension attributes refer to social humanoid semantic information such as geographic entity rights, corporate legal persons, population, addresses and the like which are hung as required; the geographic entity relation table is used for storing the relation among geographic entities, including various relations such as combination, aggregation and the like, so that the use of the geographic entities is better realized.
As shown in fig. 3, the source and the construction method of the implemented geographic entity construction rule in the current entity construction rule base include:
(1) a single element;
rule origin: the existence of only a single element in an entity does not involve other forms, and the element can be directly determined as the entity.
The construction method comprises the following steps: the single element is judged to be an entity, and the entity construction is carried out on the element only by selecting the element without considering the form of the element;
(2) a line crossing surface;
rule origin: the same physical form factor and the same plane form factor have a crossing relation.
The construction method comprises the following steps: the method is used for constructing an entity composed of line elements and surface elements, and judgment and selection are carried out through the crossing relation of the line elements and the surface elements, so that the construction of the entity, such as the construction of a bridge entity, is realized;
(3) the line falls into the surface;
rule origin: the same entity line form factor and the same plane form factor have a falling relationship.
The construction method comprises the following steps: the line falling surface can be used for constructing an entity consisting of a line and a surface, and elements are screened according to the proportion of the line falling surface, so that the corresponding relation between the surface elements and the line elements is realized, and the construction of the entity consisting of two forms of the line and the surface is realized.
(4) The central lines are communicated;
rule origin: there is a communication relationship between various similar physical line elements such as roads and water systems.
The construction method comprises the following steps: the method is used for constructing the entity composed of the line elements by the communication relation between the line elements and the line elements, constructing the entity with the line elements as main components, and realizing the automatic construction of the complex road entity by the association relation between the line elements.
(5) The points fall into a line;
rule origin: the same physical point form element may fall into the line form element based on the spatial position.
The construction method comprises the following steps: the point falling line is mainly used for constructing an entity consisting of point elements and line elements, and comprises three states of point falling line, point unique correspondence, point falling line, point one-to-one correspondence and point falling line. Through different constraint conditions, the dot-line relation can be further accurate, so that the accurate construction of the polymorphic entity is realized, and the accuracy of the entity construction is improved.
(6) The points fall into the surface;
rule origin: the same physical point form element is based on the spatial position, and the situation that the physical point form element falls into the form element can occur.
The construction method comprises the following steps: the point falling surface is used for constructing the entity consisting of the point and the surface, and the space relation type that only the point falls into the surface and the point and the surface are in one-to-one correspondence corresponds to the entity data consisting of only one point and one surface, so that the construction error of the entity is greatly avoided.
(7) The face comprises;
rule origin: the consistency or relevance of the element content in a certain area range is strong, and the same entity, such as houses in courtyards, street lamps in road ranges and the like, can be constructed.
The construction method comprises the following steps: the face inclusion means that the face element is selected by selecting the reference face layer, and the face element are constructed together as the same entity. The proportion of the elements falling into the surface can be adjusted, and meanwhile, buffer searching can be carried out according to the surface elements, so that the selection of other elements which do not fall into the surface elements completely is realized, and the elements participate in entity construction together.
(8) Attribute consistency;
rule origin: the attribute information of the same entity has stronger similarity, and the attribute information of the same entity has consistency.
The construction method comprises the following steps: the batch selection of the same attribute elements is realized by designating a certain attribute field, so that the entity construction of the same attribute elements is realized, and when the attribute field values of a plurality of elements are the same, the same entity can be judged.
As one or more embodiments, according to the entity data model, the construction rule configuration is performed on each type of geographic entity, and the obtained entity construction effect is shown in fig. 2.
By combining with the geographical entity data classification standard of a certain region and the constitution form and construction requirement of entity data, selecting a corresponding construction rule in a geographical entity construction rule base, thereby forming a complete entity construction scheme, and quickly realizing the whole-image entity batch construction by scheme execution, wherein the specific scheme corresponding rule and configuration are as follows:
(1) the entity expression forms are points, lines and planes;
the rule corresponds to: single element.
Scheme configuration: and configuring single-element entity construction rules to construct the entity.
(2) The entity expression forms are points/lines, points/planes, lines/planes;
the rule corresponds to: single element.
Scheme configuration: according to the different forms, two single-element entity construction is carried out.
(3) The entity expression form is a line plus plane, and the acquisition requirement is that the line is in the plane;
the rule corresponds to: the line passes through the face and the line falls into the face.
Scheme configuration: and selecting a line crossing surface or a line falling surface rule to carry out entity construction according to the position relation between the line elements and the surface elements.
(4) The entity expression form is a point+plane, and the acquisition requirement is that the point is in the plane;
the rule corresponds to: the point falls into the plane.
Scheme configuration: and selecting points to fall into the face rule for entity construction.
(5) The entity expression form is a point+line, and the acquisition requirement is that the point is on the line;
the rule corresponds to: the points fall into a line.
Scheme configuration: the selection points fall into line rules for entity construction.
(6) The entity expression form is not limited, and no specific acquisition requirement exists;
the rule corresponds to: attribute consistency.
Scheme configuration: and selecting an attribute consistency rule to construct an entity according to the common attribute fields of the elements, and constructing the data with the same attribute fields as one entity.
(7) A water system and road combination entity;
the rule corresponds to: the central lines are communicated.
Scheme configuration: and (3) carrying out entity construction by adopting a center line communication rule, and constructing the same-code road and water system into a piece of complete entity data.
(8) Courtyard combining entities;
the rule corresponds to: the faces comprise.
Scheme configuration: and adopting a face inclusion rule to construct an entity, and determining corresponding elements included in the face through layer screening to construct the corresponding elements and the courtyard range face into the same entity.
As one or more embodiments, after elements with different forms are constructed into the same entity, the entity generates a unique identification code as the identity of the entity, and meanwhile, the identification code is assigned to each element forming the entity, so that the association relationship between the polymorphic element and the geographic entity is realized, and then the entity code is assigned to each component element through the identity code.
Based on the principle of geographic entity code uniqueness, a geographic entity unified coding engine is developed, a multithreading and distributed algorithm is adopted, the processing capacity of a coding management engine is combined, meanwhile, different construction rules and the entity coding algorithm identified by the same entity object are embedded, geographic entity space position codes are calculated in batches in an automatic mode, a complete coding rule technology with strong operability is formed, and the uniqueness and one-code multi-state management of geographic entities is realized. The coding rules can be flexibly customized according to actual conditions, and in a geographical entity updating scene, entity coding analysis technology is developed to quickly calculate entity coding information such as classification, position and the like, so that the purposes of changing entity delay old codes, adding entity newly added codes and the same entity delay sharing one code are realized, and the coding uniqueness of different time-space entity objects is ensured.
The embodiment is provided for constructing corresponding relations between elements with different expression forms and entities in the entity construction process, and can construct the elements with different forms into the same entity according to different entity construction requirements, and carry out entity coding assignment to realize the effects of different shapes but the same entity coding; the method has the advantages that the elements of different forms belonging to the same entity can be effectively and accurately identified, and the entity construction is automatically carried out, so that the condition that the entity construction is manually carried out is reduced, and the efficiency of the entity construction is improved; meanwhile, through the transfer inheritance of the entity unique identity code, the association relationship between the polymorphic element and the entity is realized, and the entity coding consistency of the polymorphic element under the same entity is further realized.
Example two
The second embodiment of the invention introduces a polymorphic geographic entity coding consistency processing system.
A polymorphic geo-entity code consistency handling system as shown in fig. 4, comprising:
an acquisition module configured to acquire polymorphic geographic entity data;
a determining module configured to determine an entity construction element morphology from the acquired entity data;
a screening module configured to screen different form elements of the same entity based on the determined entity construction element form;
the processing module is configured to construct different form elements of the same entity as the same entity, uniquely identify the constructed same entity and generate an entity identification code; and assigning entity codes through the generated entity identification codes, so as to realize the consistency of the polymorphic identical geographic entity codes.
The detailed steps are the same as those of the polymorphic geo-entity code consistency processing method provided in the first embodiment, and are not repeated here.
The above description is only a preferred embodiment of the present embodiment, and is not intended to limit the present embodiment, and various modifications and variations can be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.
Claims (8)
1. A polymorphic geo-entity code consistency handling method, comprising:
acquiring polymorphic geographic entity data;
determining the form of the entity construction element according to the acquired entity data;
screening different form elements of the same entity based on the determined entity construction element form;
constructing different form elements of the same entity as the same entity, and uniquely identifying the same entity to generate an entity identification code;
and assigning entity codes through the generated entity identification codes, so as to realize the consistency of the polymorphic identical geographic entity codes.
2. A polymorphic geographical entity code consistency process as recited in claim 1, wherein in determining entity construction element morphology, based on the obtained entity data, determining a classification criterion for geographical entity data, designing a geographical entity data model to determine different classes of entity classification codes; and filtering the layers according to the determined classification standard of the entity data, and determining the form of the entity construction element.
3. A polymorphic geographical entity code uniformity process according to claim 2 wherein said entity classification code is an 8-bit decimal digital code.
4. A polymorphic geo-entity encoding consistency processing method in accordance with claim 2 wherein said geo-entity data model comprises a conceptual model and a data structure; the conceptual model comprises an expression form and an organization form of the geographic entity, and the data structure comprises a geographic entity attribute structure and a geographic entity relation.
5. The method for processing polymorphic geographic entity coding consistency as set forth in claim 2, wherein the geographic entity construction mode is determined according to the determined entity construction element form in combination with the designed geographic entity data model and geographic entity construction rules, the polymorphic element set is screened, different morphological elements belonging to the same entity are locked, and the different morphological elements of the same entity are constructed as the same entity.
6. The method for processing polymorphic geographic entity coding consistency as set forth in claim 1, wherein the construction rules are respectively configured for each type of geographic entity according to the entity data model, and the corresponding construction rules are selected from the geographic entity construction rule library to form a complete entity construction scheme.
7. A polymorphic geographical entity code uniformity process as recited in claim 1, wherein said different form elements, when constructed as a same entity, generate a unique entity identification code; the entity identification codes are identity marks of the entities, the entity identification codes are assigned to all form elements forming the entity, and based on the consistency of entity feature codes of different form elements of the same entity, entity identification code attribute association is carried out to obtain association relations between polymorphic elements and geographic entities.
8. A polymorphic geo-entity code consistency handling system, comprising:
an acquisition module configured to acquire polymorphic geographic entity data;
a determining module configured to determine an entity construction element morphology from the acquired entity data;
a screening module configured to screen different form elements of the same entity based on the determined entity construction element form;
the processing module is configured to construct different form elements of the same entity as the same entity, uniquely identify the constructed same entity and generate an entity identification code; and assigning entity codes through the generated entity identification codes, so as to realize the consistency of the polymorphic identical geographic entity codes.
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| CN116719898A (en) * | 2023-08-10 | 2023-09-08 | 山东省国土测绘院 | Geographic entity generation method and system based on multi-source heterogeneous data |
| CN116775676A (en) * | 2023-08-16 | 2023-09-19 | 山东省国土测绘院 | Updating-oriented basic geographic entity coding consistency maintaining method and system |
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