CN107146026B - Space planning land difference automatic coordination method - Google Patents
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Abstract
The invention discloses an automatic coordination method for space planning land use difference, which comprises the following steps: vectorizing a map for space planning, and spatially dividing the whole city into different plots, wherein attributes such as land use property and the like of the related planning on each plot; superposing two or more than two vectorized maps for space planning to form a map with fused information; meanwhile, forming a difference judgment rule and a difference coordination rule according to a fixed format for a difference judgment method and a coordination method among maps for different space planning; according to the difference judgment rule and the difference coordination rule, judging each plot in the information fusion map respectively, determining attributes such as difference types, difference codes and land use properties, and associating the attributes to the plots; and finally, forming a map for urban space planning with eliminated differences according to the property attributes of the land. The method can improve the efficiency of the space planning difference coordination work and ensure the coordination accuracy.
Description
Technical Field
The invention relates to an automatic coordination method for a space planning land difference, and belongs to the field of geographic information technology.
Background
In recent years, "all-in-one" has become a hot topic. A key link of the multiple planning and integration is the coordination of the differences of space planning of the departments of land occupation, planning, environmental protection, modification and the like, so that the coordination and the consistency of the space planning on the land occupation are realized. At present, the main method for coordinating the difference of the space planning land is as follows: based on the GIS technology, various space plans are subjected to space superposition and comparison, and planners interpret each land parcel with difference according to own experience, give corresponding coordination opinions, and finally form a blueprint which eliminates the difference and is unified by the various space plans.
In the existing methods or systems, only methods for bill of material, DWG format drawings and the like are available in the aspect of difference automated comparison, and only methods for software data resources, server structures and the like are available in the aspect of difference automated processing. The map for space planning needs to be expressed from two aspects of attributes such as space position, land property and the like, and the existing comparison mode cannot adapt to difference comparison and coordination under the space and attribute combined expression mode, or only can search the difference existing in the contents of two drawings, cannot carry out difference comparison on the space position, cannot carry out subsequent difference coordination, and is not suitable for use.
The space analysis capability of the GIS provides powerful support for automatic coordination of the difference of the map for space planning to a great extent, but some defects still exist, which are mainly expressed as follows: due to various and complex actual conditions and various space planning differences, the processing methods are different; moreover, in a city, the number of plots with differences is often as high as hundreds of thousands, and even if the space analysis capability of the GIS is used as support, a planner still needs to perform a large amount of interpretation work aiming at different situations, so that on one hand, the workload is huge, and the efficiency is difficult to improve; on the other hand, since the interpretation process is an empirical operation, the situation of misjudgment or inconsistent interpretation before and after the misjudgment is difficult to avoid.
Disclosure of Invention
The invention provides an automatic coordination method for the difference of the space planning land, which aims to solve the problems, mainly realizes the automation of the difference coordination of the space planning land, lightens the workload of planners on difference interpretation, improves the efficiency of coordination work, ensures the accuracy of coordination to a certain extent and reduces interpretation errors.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a space planning land difference automatic coordination method specifically comprises the following steps:
(1) vectorization treatment: vectorizing a map for space planning; in space, dividing the whole city space into different plots according to the existing map data; in the aspect of attributes, the land use property information of each land parcel is taken as the attributes and is related to the corresponding land parcel; finally forming vectorized map data for space planning;
(2) data overlay
Performing space superposition on two or more than two space planning maps subjected to vectorization processing to form a map with fused information; specifically, the treatment is divided into two cases: 1) on the same spatial position, if the boundaries of two plots from different spatial plans are completely overlapped, reserving plot spatial information, and associating all attribute information related to the two plots to polygons corresponding to the plots; 2) if the boundaries of the two plots are not completely overlapped, overlapping polygons corresponding to the two plots to form an overlapped part and a non-overlapped part in space, and processing the overlapped part according to the operation of the step 1); for the non-overlapped part, associating corresponding attributes according to the land parcel to which the non-overlapped part belongs before being overlapped, and iteratively performing the operation of the step 2);
(3) establishing a space planning land use difference rule base
According to a difference judgment method and a coordination method of different space plans for the land property of a certain land, respectively forming two types of rules of a difference judgment rule and a difference coordination rule according to a fixed format, wherein the difference judgment rule is used for judging the difference category of the land, and the difference coordination rule is used for determining the final land property of the land; uniformly organizing and storing the rules in a relational database in a data table mode to form a space planning land use difference rule base;
(4) automatic interpretation
In the information fusion graph formed by the processing of the step (2), difference judgment and difference coordination are respectively carried out on each land parcel, and the specific process is as follows: for each plot in the information fusion map, circularly searching the space planning land use difference rule base formed in the step (3) according to the attribute information associated with the plot, and determining the difference type and the difference code of the plot according to the condition of the difference judgment rule; determining the property of the land parcel according to the condition of the difference coordination rule; finally, the difference type, the difference code and the land use property of the land parcel are taken as attributes and are associated to the polygon corresponding to the land parcel;
(5) generation from maps
Deleting the associated attribute fields of the automatically interpreted information fusion graph formed in the step (4), and only keeping the difference type, the difference code and the land use property; and forming a map for urban space planning with eliminated differences according to the land property information.
The invention realizes the automation of difference judgment and coordination for space planning, relieves the burden of planning personnel in the space planning and compiling processes such as 'multi-rule-in-one' and the like, relieves the planning personnel from heavy and simple repeated comparison and coordination processes, puts more energy on the method for determining the difference judgment and coordination, and improves the efficiency and the accuracy of difference comparison.
The invention has the following characteristics:
(1) the land difference rule base for space planning provided by the invention formats specific rules of difference judgment and coordination in the space planning process, is not only convenient for storage and reading of a computer, but also can be used as an expert base in the field, reduces the randomness of related planning work, and improves the convenience of data collection;
(2) the method can realize automatic interpretation and coordination based on the rule base, not only can be used for difference comparison of maps for space planning, but also can be used for planning comparison analysis on any space basis, such as potential analysis of urban areas, strength zoning and the like, and the accuracy of similar work is improved.
Drawings
FIG. 1 is a flow chart of an automatic coordination method for space planning land use differences according to the present invention;
FIG. 2 is a schematic diagram of data fusion in the case of completely overlapping parcel boundaries according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of data fusion in the case of incomplete overlapping of parcel boundaries according to an embodiment of the present invention;
FIG. 4 is a flow chart of automatic interpretation in an embodiment of the present invention.
Detailed Description
In this embodiment, a specific implementation manner of the method of the present invention is described by taking the difference coordination between two specific space plans (hereinafter referred to as "two-kind plan") of a land utilization general plan (hereinafter referred to as "soil-kind plan") of the national and soil department and a city general plan (hereinafter referred to as "city-kind plan") of the city planning department as an example, and combining with the accompanying drawings.
The method for automatically coordinating the space planning land use difference comprises 5 steps of vectorization processing, data superposition, building a space planning land use difference rule base, automatic interpretation and map generation, and the specific implementation flow is shown in figure 1:
(1) vectoring process
Vectorization processing is respectively carried out on a construction land control area map in the soil gauge and a planning map in the city gauge, and the processing process is as follows:
1) in space, dividing the whole city space into different plots according to land use boundaries on two drawings respectively, wherein each plot is represented by a planar polygon, and the polygons must be closed and do not overlap with each other;
2) in the aspect of attributes, the 'control area type' and 'control area type code' in the soil gauge, and the 'land property' and 'land code' in the city gauge are taken as key attributes and are respectively associated to polygons of land blocks corresponding to the two gauges; meanwhile, according to the requirement of automatic interpretation, the attributes of the soil gauge, such as the current land property, the current land code, the current land property and the current land code of the city gauge, and the like are also associated to the corresponding polygon.
And after the above processing, forming vectorized land data for soil regulation and land data for city regulation respectively.
(2) Data overlay
The method is characterized in that the data of land for land regulation and the data of land for city regulation are subjected to space superposition (UNION), and the specific processing method comprises the following steps: on the same spatial position, assuming that corresponding plots in the soil gauge and the city gauge are respectively A and B, respectively operating under the following two conditions:
1) if the boundaries of A and B are completely overlapped, keeping the polygon corresponding to the A parcel and attribute information such as 'regulated area type', 'regulated area type code', 'present land property', 'present land code', etc., and associating the attributes such as 'land property', 'used land code', 'present land property', 'present land code' on the B parcel to the polygon, as shown in FIG. 2;
2) if the boundaries of A and B do not completely overlap, the polygons corresponding to A and B are superimposed to form spatially overlapping and non-overlapping portions, respectively. The overlapped part is processed according to the operation 1); the non-overlapping part associates corresponding attributes according to the land parcel to which the non-overlapping part belongs before cutting, as shown in fig. 3, and iterates the operation of 2).
The information is fused to form a graph, the polygon is unique in the same space in the whole city range, and the attributes are simultaneously associated with the information of the land parcels corresponding to the two specifications.
(3) Establishing a space planning land use difference rule base
For example, the method for determining the difference between maps for planning different spaces in a certain plot and the method for coordinating the difference are specifically as follows: the land property of the land rule is a region for conditional construction, the land property of the city rule is an industrial land, and the current land property of the land is a traffic facility land, so that the land is larger than the soil rule, the soil rule is adjusted to be an allowable construction region, the city rule is not adjusted, and the final land property of the land is determined to be a construction land. According to the land use property of the land, two types of rules of a difference judgment rule and a difference coordination rule are respectively formed according to the fixed format of < condition 1, condition 2, … …, conclusion 1 and conclusion 2 >:
1) rule of difference determination
Conditions are as follows: the land property of the land is the region for conditional construction, the code of the land is 020, the land property of the city land is the industrial land, and the code of the city land is M
And (4) conclusion: setting difference codes corresponding to the difference types, wherein the difference types are soil-regulated non-construction land and city-regulated construction land
2) Rules of coordination of differences
Conditions are as follows: the difference type is soil-regulated non-construction land and city-regulated construction land, the difference code set in the rule 1), the property of the city-regulated current land is the land for traffic facilities, and the code of the city-regulated current land is S
And (4) conclusion: setting the land property as construction land and corresponding land code
In the above rules, the land code of the land rule is shown in the general planning database standard for land utilization of villages (towns) (the national common people's republic of China land management industry standard TD/T1028/2010); the urban land code is shown in the urban land classification and planning construction land standard (national standard GB 50137-2011); the difference code and the place code may be any number or letter. And uniformly organizing and storing the rules by adopting a relational data table to form a space planning land use difference rule base. As shown in tables 1 and 2:
table 1 difference determination rule table
TABLE 2 Difference coordination rules Table
(4) Automatic interpretation
The automatic interpretation flow is shown in fig. 4:
1) starting interpretation;
2) reading the land blocks in the two-specification information fusion graph, and if the reading result is empty, executing the step 6); if the reading result is not null, acquiring attribute information corresponding to the parcel;
3) reading the rules in the difference judgment rule base, and if the reading result is empty, executing the step 5); if the reading result is not null, comparing the attribute information of the land parcel with the rule: if so, associating the conclusion in the rule, namely the difference type and the difference code, to the land parcel; if not, repeating the step 3);
4) reading the rules in the difference coordination rule base, and if the reading result is empty, executing the step 5); if the reading result is not null, comparing the difference type, the difference code and the attribute information of the land parcel with the rule: if the geographic information is consistent with the geographic information, the conclusion in the rule, namely the geographic property and the right-of-way code, is associated to the land parcel; if not, repeating the step 4);
5) step 1) is executed, and the next plot is interpreted;
6) and (5) finishing interpretation.
(5) Generation from maps
And (4) deleting the associated attribute fields such as 'soil standard land property', 'soil standard land code', 'city standard land property', 'city standard land code', 'city standard current land property', 'city standard current land code' and the like on all the land blocks from the automatically interpreted information fusion map formed in the step (4), and only keeping 'difference type', 'difference code' and 'land property' and the land code to form the two-specification map with the difference eliminated.
Claims (1)
1. A space planning land difference automatic coordination method is characterized by comprising the following steps:
(1) vectorization treatment: vectorizing a map for space planning; in space, dividing the whole city space into different plots according to the existing map data; in the aspect of attributes, the land use property information of each land parcel is taken as the attributes and is related to the corresponding land parcel; finally forming vectorized map data for space planning;
(2) data overlay
Performing space superposition on two or more than two space planning maps subjected to vectorization processing to form a map with fused information; specifically, the treatment is divided into two cases: 1) on the same spatial position, if the boundaries of two plots from different spatial plans are completely overlapped, reserving plot spatial information, and associating all attribute information related to the two plots to polygons corresponding to the plots; 2) if the boundaries of the two plots are not completely overlapped, overlapping polygons corresponding to the two plots to form an overlapped part and a non-overlapped part in space, and processing the overlapped part according to the operation of the step 1); for the non-overlapped part, associating corresponding attributes according to the land parcel to which the non-overlapped part belongs before being overlapped, and iteratively performing the operation of the step 2);
(3) establishing a space planning land use difference rule base
According to a difference judgment method and a coordination method for the land property of a certain land parcel by different space plans, respectively forming two types of rules of a difference judgment rule and a difference coordination rule according to a fixed format of < condition 1, condition 2, … …, conclusion 1 and conclusion 2>, wherein the difference judgment rule is used for judging the difference category of the land parcel, and the difference coordination rule is used for determining the final land property of the land parcel; uniformly organizing and storing the rules in a relational database in a data table mode to form a space planning land use difference rule base;
(4) automatic interpretation
In the information fusion graph formed by the processing of the step (2), difference judgment and difference coordination are respectively carried out on each land parcel, and the specific process is as follows: for each plot in the information fusion map, circularly searching the space planning land use difference rule base formed in the step (3) according to the attribute information associated with the plot, and determining the difference type and the difference code of the plot according to the condition of the difference judgment rule; determining the property of land use according to the condition of the difference coordination rule; finally, the difference type, the difference code and the land use property of the land parcel are taken as attributes and are associated to the polygon corresponding to the land parcel;
(5) generation from maps
Deleting the associated attribute fields of the automatically interpreted information fusion graph formed in the step (4), and only keeping the difference type, the difference code and the land use property; and forming a map for urban space planning with eliminated differences according to the land property information.
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| CN109978416B (en) * | 2019-04-18 | 2021-07-02 | 广州市城市规划勘测设计研究院 | Method and device for processing difference of non-construction land, storage medium and terminal equipment |
| CN112085357B (en) * | 2020-08-27 | 2021-06-04 | 东南大学 | System and method for recognizing and processing important points of conflict of plot planning conditions |
| CN112287058B (en) * | 2020-11-05 | 2021-06-15 | 重庆市规划和自然资源信息中心 | Working method for intelligently detecting land red line through cloud computing |
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