CN112084184B - Method for transmitting heterogeneous data attributes between different GIS platforms - Google Patents
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/258—Data format conversion from or to a database
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- G—PHYSICS
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The invention relates to the technical field of heterogeneous data processing, in particular to a method for transmitting heterogeneous data attributes between different GIS platforms, which directly transmits spatial attribute data with different formats by matching data with the same spatial positions with different formats in data exchange with different formats, and comprises the following steps: reading each primitive (information such as a right researcher, a real property unit number, a house building year, a house property category and the like) in the SHP file, inquiring the corresponding primitive in the DWG file, then transmitting the information in the SHP to the DWG file with the same spatial position, and traversing all the graphs. The method of the invention can realize the transmission of data attributes without converting data formats between different GIS platforms and directly carrying out spatial position matching, only extracts useful information and improves the efficiency and quality.
Description
Technical Field
The invention relates to the technical field of heterogeneous data processing, in particular to a method for transmitting heterogeneous data attributes between different GIS platforms.
Background
In recent years, the Geographic Information (GIS) industry has been rapidly developed, and particularly, with the development of industry upgrading and new construction, the geographic information technology is applied to almost all industries. The soul of the geographic information is 'data', and with the rapid development of data acquisition means, massive geographic information data is generated. The method has the advantages that useful information in data is mined, economic society is better served, and the method is a problem which needs to be continuously solved by industrial workers. The attribute transfer between the spatial data in different formats has strong practical significance.
In the field of Geographic Information (GIS), the existing data production platform has foreign software and domestic software, each software has own characteristics, and has bias analysis (such as ArcGis) and bias symbolization (such as CAD). In specific application, because a large amount of spatial and attribute data are owned in the Geographic Information (GIS) field, the data come from different fields and different production software (platforms), formats need to be converted between different platforms, but the situations of data loss, incomplete attributes and the like occur in the conversion process, the efficiency is low, and a large amount of manual intervention is needed.
Disclosure of Invention
In order to solve the problems, the invention provides a method for transmitting heterogeneous data attributes among different GIS platforms, which can realize lossless transmission of the data attributes through simple matching of spatial positions.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for transmitting heterogeneous data attributes between different GIS platforms directly transmits spatial attribute data of different formats by matching data with the same spatial position of different formats in data exchange of different formats, comprising the following steps:
reading each primitive (information such as a right researcher, a real property unit number, a house building year, a house property category and the like) in the SHP file, inquiring the corresponding primitive in the DWG file, then transmitting the information in the SHP to the DWG file with the same spatial position, and traversing all the graphs.
Further, the method specifically comprises the following steps:
calculating the minimum X coordinate and the minimum Y coordinate of the graphic primitive in the SHP format data, and expressing the minimum X coordinate and the minimum Y coordinate by 'SHP | Minx and Miny';
calculating the minimum X coordinate and the minimum Y coordinate one by one in the graphics primitives of the DWG format data, and expressing the minimum X coordinate and the minimum Y coordinate by 'DWG | Minx, miny';
when SHP | Minx, miny = DWG | Minx, miny, a primitive which is the same in spatial position can be determined, and then information of a right person, a real estate unit number, a house building age, house property category and the like in the SHP data is transmitted to a corresponding DWG format primitive;
and editing the DWG format data which is subjected to SHP data transmission into a drawing which meets the requirement.
The invention has the following beneficial effects:
between different GIS platforms, the data format is not required to be converted, the spatial position matching is directly carried out, the transmission of the data attribute can be realized, only useful information is extracted, and the efficiency and the quality are improved.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The existing SHP format data and DWG format data are all real estate registration basic picture data of rural home bases in the same region and comprise a plurality of land parcel and houses. The SHP file contains information such as the right holder, the real estate unit number, the housing construction year, the housing property category and the like, and the DWG file only has vector graphics data. When the real estate registration parcel map and the real estate map are generated, information such as a right of interest person, a real estate unit number, a house established year, a house property category, and the like needs to be marked, but the information is stored in the SHP format data, and therefore the information in the SHP is transferred to a corresponding DWG file. According to the actual situation, the final drawing needs a DWG format, is required to be beautiful and tidy and meets drawing specifications.
A method for transmitting heterogeneous data attributes between different GIS platforms comprises the following steps:
calculating the minimum X coordinate and the minimum Y coordinate of the graphic elements in the SHP format data, and expressing the minimum X coordinate and the minimum Y coordinate by using 'SHP | Minx, miny';
calculating the minimum X coordinate and the minimum Y coordinate one by one in the graphics primitives of the DWG format data, and expressing the minimum X coordinate and the minimum Y coordinate by 'DWG | Minx, miny';
when SHP | Minx, miny = DWG | Minx, miny, a primitive which is the same in spatial position can be determined, and then information of a right person, a real estate unit number, a house building age, house property category and the like in the SHP data is transmitted to a corresponding DWG format primitive;
and editing the DWG format data which is subjected to SHP data transmission into a drawing which meets the requirement.
The method passes verification in about twenty thousand home-based drawing programs, and no position determination errors or attribute transmission errors are found. The method is related to the characteristics of the graph, and if other conditions are met, the maximum coordinate comparison of the graphic elements can also be used as a limiting condition so as to improve the accuracy. For example, in the confirmation project of the cultivated land in the counties, the counties and the counties which are mutually assisted by the Qinghai province, the problem of multi-data attribute transmission also exists, but the space graph is relatively complex, and the accuracy rate is 100% through verification processing of more than ten million plots by taking the maximum coordinate comparison of the primitives as the limiting condition.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (2)
1. A method for transmitting heterogeneous data attributes between different GIS platforms is characterized in that: in the data exchange of different formats, the spatial attribute data of different formats are directly transmitted by matching the data with the same spatial position of different formats; the method specifically comprises the following steps:
calculating the minimum X coordinate and the minimum Y coordinate of the graphic primitive in the SHP format data, and expressing the minimum X coordinate and the minimum Y coordinate by 'SHP | Minx and Miny';
calculating the minimum X coordinate and the minimum Y coordinate one by one in the graphics primitives of the DWG format data, and expressing the minimum X coordinate and the minimum Y coordinate by 'DWG | Minx, miny';
when SHP | Minx, miny = DWG | Minx, miny, a primitive which is the same on the spatial position can be judged, and then the information of the authorized person, the real estate unit number, the house building age and the house property in the SHP data is transmitted to the corresponding DWG format primitive;
and editing the DWG format data which is subjected to SHP data transmission into a drawing which meets the requirement.
2. The method of claim 1, wherein the heterogeneous data attribute transfer between different GIS platforms is performed by: the method comprises the following steps:
reading each primitive in the SHP file, inquiring the corresponding primitive in the DWG file, then transmitting the information in the SHP to the DWG file with the same spatial position, and traversing all the primitives.
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| US20090013286A1 (en) * | 2005-07-08 | 2009-01-08 | Jiunn-Sheng Yan | Method and Apparatus for Authoring and Storing Media Objects in Optical Storage Medium |
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