CN102902747A - Land utilization data update method based on space aggregation - Google Patents
Land utilization data update method based on space aggregation Download PDFInfo
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Abstract
The invention discloses a land utilization data update method based on space aggregation. The method includes reorganizing land utilization data through a space aggregation method, establishing space aggregation relations among planar layers, and generating data of linear layers corresponding to the planar layers according to space topological relations; allocating the update of land utilization data to the update of base target data based on the space aggregation relations among planar layers of the land utilization data; and updating land utilization upper-layer planar data and linear data through the space aggregation relations and the space topological relations after the update of the base target data. The land utilization data update method based on space aggregation simplifies the update of the land utilization data, guarantees the integrity and the cohesiveness of the land utilization data, updates the land utilization data rapidly, and has significant practical significances for establishing land utilization dynamic monitoring and strengthening land management.
Description
Technical field
The present invention relates to a kind of land use data update method based on spatial clustering.Belong to land use data tissue and renewal technology field.
Background technology
Land Use Database is constantly updated along with the variation of time, and in order to guarantee the trend of the times of land use data, country carries out used in land use change survey one time every year, and the achievement of its investigation is reflected in the database by Data Update.In this process, obtain the Land Information that the current year, all changed by field investigation, and the soil utilizes entity to do change one by one, finally finish the renewal work of data.Whole process need is processed and can be finished by a large amount of spatial data operations, complicated topological relation, so difficulty is larger.
Current land use data update method has the following disadvantages:
1. when carrying out the alter operation that is caused by administrative area change or the change of ancestor ground, can trigger an ancestor stratum, location, boundary line layer, boundary mark layer, administrative area layer, administrative area layer boundary, fragmentary atural object layer, linear ground object layer, earth polygon layer, the change of a plurality of figure layers such as class layer boundary, the involved figure number of plies is many, complicated operation, topological relation is difficult in maintenance between each layer, causes land use data to upgrade difficulty;
2. the soil utilization can cause the problems such as land use data inconsistency before changing afterwards, and this need to solve by the adjustment of complexity processing, and process is complicated, and is difficult to guarantee the consistance of land use data.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of land use data update method based on spatial clustering is provided.
Land use data update method based on spatial clustering comprises the steps:
1) " the Land Use Database standard " issued in the second national land investigation according to issue on November 28th, 2007, set up Land Use Database, Land Use Database comprises trend of the times database and historical data base, wherein, ancestor stratum, location, boundary line layer, administrative area layer, administrative area layer boundary needn't be set up;
2) in Land Use Database, the earth polygon layer is in core status, the ancestor stratum can be formed by the earth polygon layer building on figure, the administrative area layer can be formed by ancestor ground layer building, according to the strong space topological hierarchical relationship between earth polygon layer, ancestor stratum and the administrative area layer, land use data is re-started tissue, set up the spatial clustering relation that is aggregated into the administrative area layer by the synthetic ancestor of earth polygon strata stratum, ancestor stratum, realize the association between each planar figure layer of land use data; On spatial relation, ancestor ground is obtained by the earth polygon plot polymerization with identical ownership, and the administrative area is obtained by the ancestor's ground polymerization with identical ownership;
3) the class boundary line is the boundary line of earth polygon, and namely on the class boundary line, the boundary line, administrative area is on the line of location, boundary, in step 2 on the border on ancestor stratum to location, boundary line on the border of earth polygon) the basis on generate successively location, boundary line layer and administrative area layer boundary;
4) by step 2) and step 3), the polymerization mapping relations have been set up between earth polygon layer and ancestor stratum, ancestor stratum and the administrative area layer, the change behavior of ancestor stratum or administrative area layer can be summed up as the change of earth polygon layer, also can relate to simultaneously fragmentary atural object layer, linear ground object layer, the interlock change of class layer boundary; With earth polygon layer, fragmentary atural object layer, linear ground object layer, the class layer boundary be referred to as basic unit's destination layer, upgrade based on the land use data of spatial clustering, the change behavior of ancestor stratum and administrative area layer all is summed up as the change of basic unit's target;
5) after the change of basic unit's target is finished, be that earth polygon layer, fragmentary atural object layer, linear ground object layer have carried out upgrading operation, generate new ancestor stratum and administrative area layer by the spatial clustering relation, and generate new location, boundary line layer and administrative area layer boundary according to spatial topotaxy.
The change in described ancestor ground or administrative area comprises following step:
(a) when the generation in ancestor ground or administrative area is changed, will change message and be passed to the earth polygon layer;
(b) determine by ancestor ground or the related earth polygon of administrative area change, and determine fragmentary atural object, linear ground object associated with it;
(c) alter operation such as earth polygon is merged or cuts apart, and accordingly fragmentary atural object, linear ground object are carried out alter operation;
(d) regenerate class boundary line, ground, upgrade ground class layer boundary data;
History of forming data in the data importing historical data base that (e) will occur to change.
The beneficial effect that the present invention compared with prior art has:
1) the realization land use data is stored in order, has reduced data redundancy.Based on the Land Use Database of spatial clustering organize mainly comprise earth polygon, fragmentary atural object, linear ground object, the figure layers such as class boundary line, ancestor stratum, administrative area layer are generated by the earth polygon layers of polymer according to the spatial clustering operator, and generate location, boundary line layer and administrative area layer boundary according to spatial topotaxy.This Method of Data Organization has been saved data space greatly, has reduced data redundancy, and has kept data's consistency;
2) realize that land use data upgrades fast, simplify soil utilization change business operation.In the land use data renewal process, all be summed up as the change of basic unit's target by the change of administrative area change or the change initiation of ancestor ground, the land-use map number of layers that participates in change reduces, and has greatly simplified operation steps, reduce the interlock change type, reduced the complexity of alter operation; And carry out association by spatial clustering relation, change main body and other related soils utilize the renewal of entity to be carried out simultaneously, thereby broken away from the one by one soil constraint that utilizes entity to change of traditional needs, be easy to safeguard that the soil utilizes the consistance of space between the entity, attribute when improving operating efficiency.
Description of drawings
Fig. 1 is based on the land use data update method process flow diagram of spatial clustering;
Fig. 2 is the soil utilization change business process map that the present invention is based on spatial clustering.
Embodiment
The present invention is based on the predicament of current land use data update method, proposed a kind of solution based on spatial clustering.The change that is caused by administrative area change or the change of ancestor ground in the soil utilization change business relates generally to a plurality of land-use map layers, has strong spatial topotaxy between each figure layer.According to existing strong spatial topotaxy to carry out spatial clustering between each figure layer, simplified soil utilization change business operation based on the land use data change of spatial clustering, guaranteed that effectively the soil utilizes the consistance of space between the entity, attribute.
Land use data update method based on spatial clustering comprises the steps:
1) " the Land Use Database standard " issued in the second national land investigation according to issue on November 28th, 2007, set up Land Use Database, Land Use Database comprises trend of the times database and historical data base, wherein, ancestor stratum, location, boundary line layer, administrative area layer, administrative area layer boundary needn't be set up;
2) in Land Use Database, the earth polygon layer is in core status, the ancestor stratum can be formed by the earth polygon layer building on figure, the administrative area layer can be formed by ancestor ground layer building, according to the strong space topological hierarchical relationship between earth polygon layer, ancestor stratum and the administrative area layer, land use data is re-started tissue, set up the spatial clustering relation that is aggregated into the administrative area layer by the synthetic ancestor of earth polygon strata stratum, ancestor stratum, realize the association between each planar figure layer of land use data; On spatial relation, ancestor ground is obtained by the earth polygon plot polymerization with identical ownership, and the administrative area is obtained by the ancestor's ground polymerization with identical ownership;
3) the class boundary line is the boundary line of earth polygon, and namely on the class boundary line, the boundary line, administrative area is on the line of location, boundary, in step 2 on the border on ancestor stratum to location, boundary line on the border of earth polygon) the basis on generate successively location, boundary line layer and administrative area layer boundary;
4) by step 2) and step 3), the polymerization mapping relations have been set up between earth polygon layer and ancestor stratum, ancestor stratum and the administrative area layer, the change behavior of ancestor stratum or administrative area layer can be summed up as the change of earth polygon layer, also can relate to simultaneously fragmentary atural object layer, linear ground object layer, the interlock change of class layer boundary; With earth polygon layer, fragmentary atural object layer, linear ground object layer, the class layer boundary be referred to as basic unit's destination layer, upgrade based on the land use data of spatial clustering, the change behavior of ancestor stratum and administrative area layer all is summed up as the change of basic unit's target;
5) after the change of basic unit's target is finished, be that earth polygon layer, fragmentary atural object layer, linear ground object layer have carried out upgrading operation, generate new ancestor stratum and administrative area layer by the spatial clustering relation, and generate new location, boundary line layer and administrative area layer boundary according to spatial topotaxy.
The change in described ancestor ground or administrative area comprises following step:
(a) when the generation in ancestor ground or administrative area is changed, will change message and be passed to the earth polygon layer;
(b) determine by ancestor ground or the related earth polygon of administrative area change, and determine fragmentary atural object, linear ground object associated with it;
(c) alter operation such as earth polygon is merged or cuts apart, and accordingly fragmentary atural object, linear ground object are carried out alter operation;
(d) regenerate class boundary line, ground, upgrade ground class layer boundary data;
History of forming data in the data importing historical data base that (e) will occur to change.
Embodiment:
1, according to " the Land Use Database standard " issued in the second national land investigation (Standard for land use database, People's Republic of China's land management industry standard, TD/T 1016-2007, issue on November 28th, 2007) sets up Land Use Database, comprise trend of the times database and historical data base.Trend of the times database is identical with the historical data base data structure, and trend of the times database is deposited trend of the times data, and historical data base is only deposited data exchanged by changed data.Wherein, ancestor stratum, location, boundary line layer, administrative area layer, administrative area layer boundary needn't be set up.
2, by the spatial clustering method land use data is reorganized, the spatial clustering of setting up between the planar figure layer closes: ancestor ground is obtained by the earth polygon plot polymerization with identical ownership, and the administrative area is obtained by the ancestor's ground polymerization with identical ownership.
3, generate the line graph layer data corresponding with each planar figure layer according to spatial topotaxy: location, boundary line is the border on ancestor ground, and on the border of earth polygon namely on the class boundary line; The boundary line, administrative area is the border in administrative area, and is on the line of location, boundary on the border on ancestor stratum.Ancestor stratum and administrative area layer can generate location, boundary line and boundary line, administrative area successively according to spatial topotaxy after generating.
4, based on the spatial clustering between the planar figure layer of land use data relation, incorporate the renewal of land use data into into basic unit's target data renewal.
Land use data renewal based on spatial clustering can be divided into allocation of landownership and land use right renewal and administrative division renewal.Be updated to example with administrative division, the administrative division adjustment puts a part of A2 in A village in the B village under, and the specific implementation flow process as shown in Figure 2.The data that relate in the change process have administrative area data (A village, the B village), boundary line, administrative area data (boundary line in A village and B village), ancestor ground data (the ancestor ground in A village and the B village), location, boundary line data, earth polygon data (earth polygon in A2 village and the B village scope), linear ground object data (linear ground object in A2 village and the B village scope), fragmentary atural object data (the fragmentary atural object in A2 village and the B village scope), ground class boundary line data (the class boundary line, ground that changes in A village and the B village).Land use data renewal based on spatial clustering all is summed up as the change that basic unit's target is earth polygon layer, fragmentary atural object layer, linear ground object layer with all change behaviors, be that the earth polygon in the A2 village that will be referred to, fragmentary atural object, linear ground object carry out the attribute change in this concrete change behavior, its attribute becomes the B village, and regenerates class boundary line, ground.
5, based on spatial clustering relation and spatial topotaxy, relevant planar data and wire data are upgraded.After basic unit's updating target data is finished, generate new ancestor stratum by the spatial clustering relation, and then generate new administrative area layer according to paradigmatic relation, and generate new location, boundary line layer and administrative area layer boundary according to spatial topotaxy.
Claims (2)
1. the land use data update method based on spatial clustering is characterized in that comprising the steps:
1) " the Land Use Database standard " issued in the second national land investigation according to issue on November 28th, 2007, set up Land Use Database, Land Use Database comprises trend of the times database and historical data base, wherein, ancestor stratum, location, boundary line layer, administrative area layer, administrative area layer boundary needn't be set up;
2) in Land Use Database, the earth polygon layer is in core status, the ancestor stratum can be formed by the earth polygon layer building on figure, the administrative area layer can be formed by ancestor ground layer building, according to the strong space topological hierarchical relationship between earth polygon layer, ancestor stratum and the administrative area layer, land use data is re-started tissue, set up the spatial clustering relation that is aggregated into the administrative area layer by the synthetic ancestor of earth polygon strata stratum, ancestor stratum, realize the association between each planar figure layer of land use data; On spatial relation, ancestor ground is obtained by the earth polygon plot polymerization with identical ownership, and the administrative area is obtained by the ancestor's ground polymerization with identical ownership;
3) the class boundary line is the boundary line of earth polygon, and namely on the class boundary line, the boundary line, administrative area is on the line of location, boundary, in step 2 on the border on ancestor stratum to location, boundary line on the border of earth polygon) the basis on generate successively location, boundary line layer and administrative area layer boundary;
4) by step 2) and step 3), the polymerization mapping relations have been set up between earth polygon layer and ancestor stratum, ancestor stratum and the administrative area layer, the change behavior of ancestor stratum or administrative area layer can be summed up as the change of earth polygon layer, also can relate to simultaneously fragmentary atural object layer, linear ground object layer, the interlock change of class layer boundary; With earth polygon layer, fragmentary atural object layer, linear ground object layer, the class layer boundary be referred to as basic unit's destination layer, upgrade based on the land use data of spatial clustering, the change behavior of ancestor stratum and administrative area layer all is summed up as the change of basic unit's target;
5) after the change of basic unit's target is finished, be that earth polygon layer, fragmentary atural object layer, linear ground object layer have carried out upgrading operation, generate new ancestor stratum and administrative area layer by the spatial clustering relation, and generate new location, boundary line layer and administrative area layer boundary according to spatial topotaxy.
2. a kind of land use data update method based on spatial clustering according to claim 1 is characterized in that the change in described ancestor ground or administrative area comprises following step:
(a) when the generation in ancestor ground or administrative area is changed, will change message and be passed to the earth polygon layer;
(b) determine by ancestor ground or the related earth polygon of administrative area change, and determine fragmentary atural object, linear ground object associated with it;
(c) alter operation such as earth polygon is merged or cuts apart, and accordingly fragmentary atural object, linear ground object are carried out alter operation;
(d) regenerate class boundary line, ground, upgrade ground class layer boundary data;
History of forming data in the data importing historical data base that (e) will occur to change.
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| CN103577609A (en) * | 2013-11-21 | 2014-02-12 | 武大吉奥信息技术有限公司 | Urban-rural integrated cadastral space data management modeling method |
| CN106897445A (en) * | 2017-03-01 | 2017-06-27 | 武汉科技大学 | It is a kind of that the novel method that operation delimited on border is improved based on ArcGIS |
| CN111311464A (en) * | 2020-01-19 | 2020-06-19 | 东南大学 | Novel method for monitoring land flow direction in land utilization overall planning result |
| CN111915669A (en) * | 2020-08-03 | 2020-11-10 | 北京吉威空间信息股份有限公司 | Land survey linear ground object pattern spot method based on total amount control |
| CN112380307A (en) * | 2020-11-12 | 2021-02-19 | 中国国土勘测规划院 | Design method of land utilization space-time data model |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103577609A (en) * | 2013-11-21 | 2014-02-12 | 武大吉奥信息技术有限公司 | Urban-rural integrated cadastral space data management modeling method |
| CN106897445A (en) * | 2017-03-01 | 2017-06-27 | 武汉科技大学 | It is a kind of that the novel method that operation delimited on border is improved based on ArcGIS |
| CN111311464A (en) * | 2020-01-19 | 2020-06-19 | 东南大学 | Novel method for monitoring land flow direction in land utilization overall planning result |
| CN111915669A (en) * | 2020-08-03 | 2020-11-10 | 北京吉威空间信息股份有限公司 | Land survey linear ground object pattern spot method based on total amount control |
| CN111915669B (en) * | 2020-08-03 | 2024-04-05 | 北京吉威空间信息股份有限公司 | Total quantity control-based land survey linear ground object pattern spotting method |
| CN112380307A (en) * | 2020-11-12 | 2021-02-19 | 中国国土勘测规划院 | Design method of land utilization space-time data model |
| CN112380307B (en) * | 2020-11-12 | 2023-07-07 | 中国国土勘测规划院 | Land utilization time-space data model design method |
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