Disclosure of Invention
The invention aims to provide a method for conveniently retrieving information and constructing a GIS data structure based on a geographic element interaction mechanism.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A method for constructing GIS data structure based on geographic element interaction mechanism comprises the following steps:
s1: constructing a novel scene GIS: based on expressing geographic information as space plus attribute, dividing concepts of a scene GIS from element composition, association relation and action mechanism of physical, human and information ternary space;
A1: dividing elements: abstracting a geographic world into seven elements of time, place, person, things, event, phenomenon and scene, and expressing geographic information into seven dimensions of semantic description, spatial position, geometric form, evolution process, interrelation, action mechanism and attribute characteristics from a geographic perspective;
A2: concept model formation: under the unified space-time frame, the real world is abstracted by the geographic seven elements, and the geographic seven elements are expressed by the seven dimensions of geographic information, so that a novel GIS conceptual model is formed;
S2: search based on evolution process: the semantic description, the spatial position, the geometric form, the evolution process, the mutual relation, the action mechanism and the attribute characteristics are comprehensively compared, and the evolution process is used as an important reference condition for GIS seven-dimensional retrieval so as to facilitate the retrieval of the corresponding position as a whole;
B1: search rules: storing a change rule diagram appearing in the evolution process of the geographic structure according to a data segmentation, storage and indexing method supported by the geographic space diversity rule so as to conveniently search unusual geographic positions;
B2: and (3) storing a database: storing a change rule diagram of mutation-gradual change detection in the geographic structure evolution process, and setting a database so as to search for similar structures;
S3: display of information after retrieval: the six-dimensional information of semantic description, spatial position, geometric form, interrelation, action mechanism and attribute characteristics is displayed in a hexahedral form, and the common point of the six-dimensional information is used as a fulcrum, so that the integral expression of lattice points, lattice Bian lattice planes and voxels is developed, and the definition of the information is increased;
S4: and (3) finishing structure construction: the information is constructed through semantic description, spatial position, geometric form, interrelation, action mechanism and attribute characteristics, and is searched through the change rule appearing in the geographic structure evolution process, so that a GIS data structure convenient to search is formed.
By adopting the technical scheme, the integral structure is searched by using the change rule in the geographic structure evolution process, and the data are stored by the relational database and the non-relational database, so that the relevant geographic position can be conveniently found for observation, and the integral searching difficulty is reduced.
Further, the spatial position, geometry, action mechanism and attribute feature in S2 are standby search conditions.
By adopting the technical scheme, the spatial position, the geometric form, the action mechanism and the attribute are geographic characteristics which are easy to identify, so that the retrieval is convenient.
Further, an important basis in the evolution process of the geographic structure in B1 is based on mutation-gradual change detection.
By adopting the technical scheme, the evolution of the geographic structure is fully displayed on the basis of mutation-gradual change detection, so that the overall good retrieval effect is ensured.
Further, the databases in B2 are a relational database and a non-relational database.
By adopting the technical scheme, the relational database and the non-relational database can conveniently search the terrains of the same kind and different kinds integrally, thereby facilitating the full search of the whole body.
In summary, the beneficial technical effects of the invention are as follows:
1. according to the method for constructing the GIS data structure based on the geographic element interaction mechanism, under the unified space-time frame, the geographic seven elements abstract the real world, the geographic seven elements are expressed in seven dimensions of geographic information, and the evolution process is used as an important basis for searching, so that the effect of convenient searching is generated.
2. The method for constructing the GIS data structure based on the geographic element interaction mechanism designs a data updating method based on mutation-gradual change detection, supports a relational database and a non-relational database, greatly improves the efficiency of vector geographic space data storage management, and generates the effect of convenient retrieval;
3. The method for constructing the GIS data structure based on the geographic element interaction mechanism forms the effect of increasing the data intuitiveness based on the geographic element interaction by the display and expression method of the hexahedral mesh.
Detailed Description
The process according to the invention is described in further detail below with reference to the accompanying drawings.
A method for constructing GIS data structure based on geographic element interaction mechanism comprises the following steps:
S1: constructing a novel scene GIS: aiming at the one-sided knowledge that the geographic world is abstracted into entities and phenomena and the geographic information is expressed as space plus attributes at present, we start from the element composition, association relation and action mechanism of the physical, human and information ternary space;
A1: dividing elements: abstracting a geographic world into seven elements of time, place, person, things, event, phenomenon and scene, and expressing geographic information into seven dimensions of semantic description, spatial position, geometric form, evolution process, interrelation, action mechanism and attribute characteristics from a geographic perspective;
A2: concept model formation: under the unified space-time frame, the real world is abstracted by the geographic seven elements, and the geographic seven elements are expressed by the seven dimensions of geographic information, so that a novel GIS conceptual model is formed;
S2: search based on evolution process: by comprehensively comparing semantic description, spatial position, geometric form, evolution process, interrelation, action mechanism and attribute characteristics, the evolution process is used as an important reference condition for seven-dimensional retrieval of GIS so as to facilitate the retrieval of corresponding positions as a whole, the existing GIS stores and indexes vector geographic space data in a layer and block structure according to the principle of layered framing of graphics, so that the utilization rate of storage resources is low, the index efficiency is low, and the wider and universal application of the GIS is restricted. According to the first law, the second law and the third law of geography, the data segmentation, storage and indexing methods supported by the geographic space diversity law are explored, the data updating method based on mutation-gradual change detection is designed, a relational database and a non-relational database are supported, and the efficiency of vector geographic space data storage management is greatly improved;
B1: search rules: storing a change rule diagram appearing in the evolution process of the geographic structure according to a data segmentation, storage and indexing method supported by the geographic space diversity rule so as to conveniently search unusual geographic positions;
B2: and (3) storing a database: storing a change rule diagram of mutation-gradual change detection in the geographic structure evolution process, and setting a database so as to search for similar structures;
S3: display of information after retrieval: six-dimensional information of semantic description, spatial position, geometric form, interrelation, action mechanism and attribute characteristics is displayed in a hexahedral form, and six-dimensional information common points are used as fulcrums, so that lattice point-lattice Bian lattice face-body element integrated expression is developed, the definition of the information is increased, the method of substance migration, energy conversion and information transmission of an earth system mode is used as a reference, the lattice point-lattice Bian lattice face-body element integrated expression is developed on the basis of a Planet regular icosahedron, a geospatial unified expression method capable of supporting spherical triangle\quadrilateral\hexagon, sphere tetrahedron\pentahedron\hexahedral lattice net simultaneously is realized, and a GIS data structure constructing method based on a geographic element interaction mechanism is formed;
S4: and (3) finishing structure construction: the information is constructed through semantic description, spatial position, geometric form, interrelation, action mechanism and attribute characteristics, and is searched through the change rule appearing in the geographic structure evolution process, so that a GIS data structure convenient to search is formed.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.