CN109840338A - A kind of three-dimensional building model building method applied to three-dimensional real estate information management - Google Patents
A kind of three-dimensional building model building method applied to three-dimensional real estate information management Download PDFInfo
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Abstract
The invention discloses a kind of three-dimensional building model building methods applied to three-dimensional real estate information management, belong to real estate technical field, the present invention, which converts, generates SHP format two dimension family room face, construct the two-dimentional family room of three-dimensional building model and the incidence relation of two-dimentional building table family room, using base face as the geospatial information reference in the corresponding two-dimentional family room face of the house figure layer, construct three-dimensional building model, for the three-dimensional building model assignment, the three-dimensional building model of output application, produce the three-dimensional building model of three kinds of different data organizational forms, to adapt to browsing and inquiry of the three-dimensional building model at the end Web of multiple dimensioned and different LOD ranks, realize that rapid build has the three-dimensional building model of geospatial information, to be applied in the management of two three-dimensional integratedization of real estate.
Description
Technical field
The invention belongs to real estate technical field, in particular to a kind of three-dimensional building applied to three-dimensional real estate information management
Disk model building method.
Background technique
Real estate belongs to geography information element, and existing real estate uniformly registers the house data management technique under background,
Management means is discrete table, figure management, it may be assumed that building table management method is with two-dimentional building table way to manage, Story and door based map pipe
For reason method with no spatial information and the two dimensional image or drawing of standard multiplicity, the utilization rate of data is low, not by two-dimentional building table, room
Room Story and door based map uses geographical information management form.Existing two dimension building table is showed using two-dimensional table form, is laterally
Layer, longitudinal is unit, and floor and unit can be further divided into family room, and effect is similar with map, for indicating each rights to independence
The spatial distribution of sharp unit.But the two-dimentional building table management mode in house property data management is gradually unable to satisfy building day
Beneficial complicated trend, two-dimentional building table way to manage are suitable for the building building of simple rule, and difficult for complex building synthesis
Accurately to express.In three-dimensional building object modeling technique, modeling software is mostly used to model by hand at present, the advantages of which is exhibition
The disadvantages of existing effect is good, but there is heavy workloads, at high cost, application field unification.Existing three-dimensional building building model is usual
Be the building building in three-dimensional scenic, be only the simulation to house property external structure, texture, acted on displaying based on, can not check it
Internal accurately house property structure and unified data management can not be carried out using family room as administrative unit.How to efficiently use existing
Praedial two dimension building table, house Story and door based map, quick, procedure building have the three-dimensional building of geospatial information
Model has invention and application value for expressing the information of the real estate unit under two three-dimensional scenics.
Patent " a kind of three-dimensional building modeling method ", application publication number CN 105513126A is mentioned in the applying date 20160420
A kind of modeling method of three-dimensional building is gone out, but this method can not achieve and settle function, can not achieve two-dimentional family room face oneself
Dynamic matching, attribute assignment operations are cumbersome after extracting two-dimentional family room face, and cannot two-dimentional family room face corresponding to house figure layer it is fixed
Position geospatial information cannot export the OSGB format applied to large scale scene display, be applied to response map datum service
The Shapefile format of request and details applied to small scale scene real time information show three kinds of GeoJson format is not
With the three-dimensional building model of Method of Data Organization.
Summary of the invention
The object of the present invention is to provide a kind of three-dimensional building model building method applied to three-dimensional real estate information management,
Solves the deficiency in patent " a kind of three-dimensional building modeling method ".
To achieve the above object, the invention adopts the following technical scheme:
A kind of three-dimensional building model building method applied to three-dimensional real estate information management, includes the following steps:
Step 1: extracting DWG format house Story and door based map from real estate basic data, carry out the conversion of DWG format, mention
The format two dimension family the SHP room face for having realized that line is closed into face is taken, two-dimentional family room face and corresponding balcony are merged, is the two dimension
The attribute assignment in family room face, and generate the identifier of relevant to interior construction area is covered closing and semiclosed balcony；
Step 2: the operation of the Auto-matching based on tangent space method being carried out to the two-dimentional family room face, realizes identical structure
But the figure layer in the two-dimentional family room face in different floors is stacked automatically to be updated with attribute value, and generates corresponding house number of plies quantity
Two-dimentional family room face constructs the incidence relation of two-dimentional building table family room in two-dimentional family room face and freehold nationality database, by " falling
Construction area verification is in set behind family " to check whether the two-dimentional family room of three-dimensional building model unanimously matches with its attribute value；
Step 3: house figure layer corresponding to the house Story and door based map is extracted from real estate database, described in extraction
Bottom in house Story and door based map, i.e. base face, by base's face automatic projection to corresponding house figure layer, as the house
The geospatial information reference in the corresponding two-dimentional family room face of figure layer；
Step 4: the three-dimensional building model construction based on base face is carried out according to the attribute value in the two-dimentional family room face；
Step 5: reading house right status attribute, from the family room table of real estate database for the three-dimensional building model
Assignment；
Step 6: Show Styles rendering being carried out to the three-dimensional building model according to corresponding right status attribute, output is answered
With three-dimensional building model；
Step 7: according to the three-dimensional building model of the application, being reorganized by data format, output is applied to large scale
The OSGB format of scene display, applied to response map datum service request Shapefile format and be applied to small scale field
The three-dimensional building model of three kinds of different data organizational forms of the GeoJson format that the details of scape real time information is shown, to adapt to
Browsing and inquiry of the three-dimensional building model of multiple dimensioned and different LOD ranks at the end Web.
The two dimension family room face be after format conversion and line are closed into face operation include several family rooms, have it is clear
Boundary, topologically correct two-dimentional house division figure layer；
The attribute in the two dimension family room face includes: two-dimentional family room basal plane identification code, real estate unit number, natural building number, patrols
Volume building number, physical layer number, nominal level number, unit number, basal plane elevation, affiliated ancestor number, starting level number, terminate level number, height, room
Between number, family number, affiliated ancestor number, balcony model identifier and inside space；
With the data preprocessing method based on house Story and door based map according to the house Story and door based map of the DWG format
The category in the two-dimentional family room face in house Story and door based map is extracted in the two-dimentional family room face for extracting SHP format with attributes extraction method
Property.
It is described " Auto-matching " when executing step 2: i.e. in the base for extracting and simplifying Story and door based map outer profile polygon
On plinth, respectively to the outer contour shape building initialization tangent space described function of source figure layer and figure layer to be matched, pass through solution
The translation set of the initial tangent space described function of the outer profile of source figure layer and figure layer to be matched, reconstructs corresponding tangent space letter
Number obtains starting point of the similarity apart from the smallest solution and composition minimal solution between the two, finally rising to the minimal solution of acquirement
Initial point position takes difference, solves the matching distance of Story and door based map to be matched, completes the higher Story and door based map of result reliability
Auto-matching.
It is described " settling " when executing step 2: as to construct two-dimentional building in two-dimentional family room face and freehold nationality database
The incidence relation of dish cart family room reads obligee, natural building number, logic building volume from the attribute of the two-dimentional building table family room
Number, floor number, room serial number or family room number and construction area in covering；Nature building number, logic are extracted from the two-dimentional family room face
Building number, physical layer number, nominal level number, unit number, basal plane elevation, affiliated ancestor number, initial layers, stop layer, floor are high and set is built-in
Build area；Interior construction area is covered from two-dimentional family room face is corresponding to acquisition in the room of two-dimentional building table family, area verification is carried out with this, with
Ensure that two-dimentional family room face matches unanimously with its attribute value.
It is described " automatic projection " when executing step 3: as to extract house figure corresponding to the house Story and door based map
Layer is used as perspective plane, with the bottom in the house Story and door based map, i.e. base face, as perspective plane.Determining projection rule
After calculating the angle that subpoint rotates, four known points for choosing base face are projected as reference projection point to house figure layer
On.
A kind of three-dimensional building model building method applied to three-dimensional real estate information management of the present invention, integration is not
Movable property two dimension building table data, house house division diagram data, design house Story and door based map data standard, three-dimensional building are located in advance
Process, three-dimensional building model modelling approach, three-dimensional building model family room and two-dimentional building table family room relation mechanism are managed, is realized quick
Building has the three-dimensional building model of geospatial information, to be applied in the management of two three-dimensional integratedization of real estate；Needle of the present invention
The house Story and door based map different to standard is proposed for the automatic of this method " natural building-logic building-floor-family room " format
The DWG data standard of modeling reads phase for the different storage modes of different designs institute, the housing property management department of different zones
Answer data that modeling can be realized；Using the technological means of house Story and door based map basal plane automatic modeling, solve with House Property
The technical issues of management is the three-dimensional building model construction of core has reached using three-dimensional building model service in real estate management
Technical effect；By realizing pattern rendering to three-dimensional building model right state assignment, it is different from traditional modeling method model
Pattern uses sturdy border building texture form, and method of the invention overcomes in the prior art due to assigning texture, to block
Internal structure, the problem of can not illustrating right state well；Method of the invention is repaired by the way of assigning right state
Change the pattern of three-dimensional building model, and the transparency of model is set, realizes house property inner transparent, building structure is checked more square
Just；Application is realized using three kinds of OSGB format, Shapefile format and GeoJson format different data organizational forms respectively
In the demand that the details of large scale scene display, response map datum service request and small scale scene real time information is shown, energy
Enough adapt to browsing and inquiry of the three-dimensional building model at the end Web of multiple dimensioned and different LOD ranks；Three-dimensional building model, mainly
Increasingly sophisticated building synthesis is served, each family of building synthesis is intuitively portrayed using true three-dimensional building model
Spatial distribution, position feature, direction, volume, the area etc. of room property right unit avoid conventional two-dimensional building table to complex building
Object synthesis management is expressed the meaning unknown, non-intuitive drawback；Method Modeling provided by the invention is at low cost, modeling method is simply high
Effect is obvious for different fields, economic benefits such as housing property management, real estate management；Three-dimensional building constructed by the method for the present invention
Model can effectively eliminate three-dimension GIS " information island " problem, meet three-dimension GIS number defined in different platform and different field
According to call format, realize that three-dimensional building model data is shared；The present invention is based on standard compliant house Story and door based maps, realize
The process that two-dimentional family room face automatically extracts has obtained the family room basal plane data of automatic building three-dimensional building model, has realized to three
The pattern rendering of building model is tieed up, rendering mode renders different patterns using the difference of right state value, and rendering result obtains
Express the three-dimensional building model of house right state；The present invention solves the problems, such as the Topology Error of DWG format house Story and door based map,
Ensure the topological relation correctness of two-dimensional space data.
Detailed description of the invention
Fig. 1 is overview flow chart of the invention；
Fig. 2 is three-dimensional building modeling procedure figure of the invention；
Fig. 3 is three-dimensional building right state assignment and rendering flow chart of the invention.
Specific embodiment
A kind of three-dimensional building model building method applied to three-dimensional real estate information management as shown in FIG. 1 to FIG. 3, packet
Include following steps:
Step 1: extracting DWG format house Story and door based map from real estate basic data, carry out the conversion of DWG format, mention
The format two dimension family the SHP room face for having realized that line is closed into face is taken, the Topology Error for solving DWG format house Story and door based map is asked
Topic, it is ensured that the topological relation correctness of two-dimensional space data.Merge two-dimentional family room face and corresponding balcony, for the two-dimentional family
The attribute assignment in room face, and generate the identifier of relevant to interior construction area is covered closing and semiclosed balcony；
Step 2: the operation of the Auto-matching based on tangent space being carried out to the two-dimentional family room face, realizes identical structure but place
Map overlay and attribute value in the two-dimentional family room face of different floors update, and generate the two-dimentional family room of corresponding house number of plies quantity
Face constructs the incidence relation of two-dimentional building table family room in two-dimentional family room and freehold nationality database, passes through the set after " settling "
Interior construction area verification is to check whether the two-dimentional family room of three-dimensional building model unanimously matches with its attribute value.
Step 3: extracting house figure layer corresponding to the house Story and door based map from house database, extract the room
Bottom in room Story and door based map, i.e. base face, by base's face automatic projection to corresponding house figure layer, as the house figure
The geospatial information reference in the corresponding two-dimentional family room face of floor；
Step 4: the three-dimensional building model construction based on base face is carried out according to the attribute value in the two-dimentional family room face；
Step 5: reading house right status attribute, from the family room table of freehold nationality database for the three-dimensional building
Model assignment；
Step 6: Show Styles rendering being carried out to the three-dimensional building model according to corresponding right status attribute, output is answered
With three-dimensional building model；
Step 7: according to the three-dimensional building model of the application, being reorganized by data format, output is applied to large scale
The OSGB format of scene display, applied to response map datum service request Shapefile format and be applied to small scale field
The three-dimensional building model of three kinds of different data organizational forms of the GeoJson format that the details of scape real time information is shown, to adapt to
Browsing and inquiry of the three-dimensional building model of multiple dimensioned and different LOD ranks at the end Web.
Firstly, building model of the three-dimensional building model as a kind of observable house internal structure, minimum administrative unit
It is right family room, is the minimum unit of housing property management.Therefore, it when constructing three-dimensional building model, need to first define in three-dimensional building
Portion manages structure.On the basis of patent " a kind of three-dimensional building modeling method ", the present invention uses layered structure and corresponding three
Dimension building model is corresponded, and the tree construction of three-dimensional building model: real estate unit, natural building, logic building, layer is constructed
(aerial layer uses numerical character string mode, from lower to upper, such as: first layer, " 1 ", subterranean layer uses " underground G+ level number ", by upper
Down, such as negative one layer, " G1 ").
Based on above description, the method for step 1 to step 7 is illustrated respectively.
Data preprocessing method based on house Story and door based map includes above-mentioned steps 1 to step 3.
With the data preprocessing method based on house Story and door based map according to the house Story and door based map of the DWG format
The category in the two-dimentional family room face in house Story and door based map is extracted in the two-dimentional family room face for extracting SHP format with attributes extraction method
Property.
The two dimension family room face be after format conversion and line are closed into face operation include several family rooms, have it is clear
Boundary, topologically correct two-dimentional house division figure layer；
The attribute in the two dimension family room face includes: two-dimentional family room basal plane identification code, real estate unit number, natural building number, patrols
Volume building number, physical layer number, nominal level number, unit number, basal plane elevation, affiliated ancestor number, starting level number, terminate level number, height, room
Between number, family number, affiliated ancestor number, balcony model identifier and inside space；
The balcony model identifier, construction area in the set for calculating house, comprising: totally-enclosed balcony, semiclosed
Balcony.
As shown in table 1 below, table 1 is family room face layer properties table.
1 family room face layer properties table of table
Basal plane extraction is the data basis of three-dimensional building model construction, and the principle followed is: observing and predicting the house property in accusing in room
DWG schemes recorded Story and door based map and extracts, and when extraction is carried out as unit of the room of family.Extraction process is by house property DWG
The influence of the quality of data, therefore the present invention proposes the automatic modeling for being used for this method " natural building-logic building-floor-family room " format
DWG data standard, two-dimentional family room face is extracted based on this DWG data standard.
It is uniformly registered in specific affairs in real estate, construction area is the sum of construction area and public watershed transfomzation in covering,
Construction area is then equal to usable floor area in set, set the sum of interior wall bulk area and balcony construction area in covering.To two-dimentional family room face institute
Corresponding balcony does enclosed balcony and semiclosed balcony is distinguished, and assigns respective identifier；To the SHP after line is closed into face
Format two dimension family room face merges operation, obtains its ShapeArea area, and the mark according to enclosed balcony and semiclosed balcony
Know symbol, recalculates construction area in the set in the house.
The data preprocessing method based on house Story and door based map the following steps are included:
Step A: Story and door based map data standard in house defined in method according to the present invention handles house Story and door based map
Data；The house Story and door based map for meeting the DWG format of three-dimensional building model construction standard is read, DWG house object collection is extracted
It closes；
Step B: extracting geometric object in DWG house object set is polygonal figure, is converted into being closed by line
The format two dimension family the SHP room face in face；
Step C: traversing two-dimentional family room face, and the attribute and collection object letter in the house are extracted from freehold nationality data
Breath, and save into two-dimentional family room face；
Step D: the operation of the Auto-matching based on tangent space is carried out to two-dimentional family room face, is realized for three-dimensional building model
The successively registration in the two-dimentional family room face of building is stacked；
Step E: extracting the house figure layer in the house, extracts the bottom in the house Story and door based map, i.e. base face,
By base's face automatic projection to corresponding house figure layer；
Step F: replicating two-dimentional family room face basal plane and updates two-dimentional family room face attribute value, and assigns georeferencing.
Step 4, the two-dimentional family room face to work the completion data prediction, carry out basal plane stretching according to its attribute value,
Construct three-dimensional building model.Each floor basal plane elevation and story height for obtaining the two-dimentional family room face, carry out basal plane stretching, from
And construct the three-dimensional building model for being formed and corresponding to two-dimentional family room face.
In the present invention, three-dimensional building model, the modeling are constructed using improved 3DLP_ModelBuilder modeling tool
Tool breaks through the limitation that outer table model is only focused in the modeling of conventional three-dimensional house property using family room as the fundamental unit of model；Model data
Type meets different platform GIS software needs, meets shared demand, while can be managed collectively with other real estate data, and
Can when the end Web is shown real-time update attribute information and right state.
First the two-dimentional family room face by format conversion is based on using improved 3DLP_ModelBuilder tool
The Auto-matching of tangent space method operates, realize identical structure but the map overlay in the two-dimentional family room face in different floors with
Attribute value updates, and whether the two-dimentional family room for automaticly inspecting three-dimensional building model unanimously matches with its attribute value；Then from house
Corresponding house figure layer is extracted in database, the bottom in the house Story and door based map, i.e. base face is extracted, by base face
Automatic projection assigns geospatial information reference to corresponding house figure layer；Finally according to the attribute in the two-dimentional family room face
Value carries out the three-dimensional building model construction based on base face, and carries out the right status attribute assignment of three-dimensional building model.
When executing step 5, read from the three-dimensional building attribute real estate unit number, natural building number, logic building number,
Unit number, physical layer number, nominal level number, room serial number or family room number；Pass through " real estate unit number+nature building number+logic building number
The format of+unit number+room serial number or family room number " forms unique mark condition, reads out from freehold nationality database pair
The right state answered is assigned in three-dimensional building model corresponding family room object.
Corresponding family room object in the three-dimensional building model, for storing graph data and attribute data after modeling；
The graph data is obtained according to basal plane elevation and story height angle value, and the attribute data is from the two-dimentional family room face figure layer table
It is obtained with the attribute data of freehold nationality database.
The attribute of the three-dimensional building figure layer includes: family room basal plane identification code, real estate unit number, natural building number, logic
Building number, unit number, level number, family room number, right state and inside space.
The right state, for distinguishing the right of attribution state in house, comprising: it is registered, unregistered, mortgage, close down and
Public domain.
As shown in table 2 below, table 2 is a kind of three-dimensional building layer properties table.
Table 2
Wherein, right state is the ownership state for indicating family room, and specifically include: 1- is registered, 2- is unregistered, 3- is supported
It gives as security, 4- is closed down and the public domain 5-.
In the step 6, Show Styles rendering is carried out to the three-dimensional building model, comprising the following steps:
Three-dimensional family room after traversing preprocessed and stretched operation is gathered, the field value of right state in reading attributes table,
According to the right state rendering three-dimensional building pattern, until completing the rendering of all family rooms in the family room set, most
The three-dimensional building model after output rendering is the three-dimensional building model of the application eventually.
Different thematic patterns, while root are arranged according to the right state attribute value of family room object for the pattern rendering value
According to transparence value set by user, the transparence information of corresponding family room is set, displays the details of the structural information of corresponding family room.
Wherein, right state attribute value respective rights are as shown in table 3, specifically include: 0: do not set right, 1: set right,
2: right mortgage, 3: right closes down, 4: right advance notice, 5: advance notice mortgage, 6: right objection and 7: easement.
| Code | Title | Color (RGB) |
| 0 | Right is not set | (255,255,255) |
| 1 | Right is set | (92,184,92) |
| 2 | Right mortgage | (240,173,78) |
| 3 | Right is closed down | (217,83,79) |
| 4 | Right advance notice | (0,255,0) |
| 5 | Advance notice mortgage | (118,92,240) |
| 6 | Right objection | (237,95,176) |
| 7 | Easement | (82,228,234) |
3 right state attribute value code of table, title and color chart
In the step 7, data format reorganization is carried out to the three-dimensional building model, comprising the following steps: receive
And the three-dimensional building model after rendering is stored, and carry out the reorganization of three-dimensional building data format, generate described be applied to greatly
The OSGB format model of scale scene display, the Shapefile format model applied to response map datum service request, application
The GeoJson file that real time information details is shown under small scale scene, final output is under multiple dimensioned and different LOD ranks
Meet the three-dimensional building model of the end Web browsing and query demand.The three-dimensional building data format reorganizes, and is applied to big ruler
Spend scene display OSGB format model and applied to response map datum service request Shapefile format model again
Tissue can be shown by SuperMap ESRI related platform software realization applied to real time information details under small scale scene
GeoJSON formatted file is by requesting the Rest API of SuperMap IServer to obtain.
The present invention carries out data format reorganization to the three-dimensional building model, and data format is classified after reorganizing:
1. being converted into three of the OSGB format applied to large scale scene display using SuperMap or ESRI platform software
Tie up building model；
2. being converted into being applied to response map datum service request using SuperMap or ESRI platform software
The three-dimensional building model of Shapefile format；
3. being applied to real-time exhibition under small scale scene by what the Rest API of request SuperMap IServer was obtained
The GeoJson formatted file of detail of information.
Three-dimensional building model after the data format reorganization, can satisfy multiple dimensioned, LOD grades different at the end Web
Other browsing and inquiry.
Claims (5)
1. a kind of three-dimensional building model building method applied to three-dimensional real estate information management, it is characterised in that: including as follows
Step:
Step 1: extracting DWG format house Story and door based map from real estate basic data, carry out the conversion of DWG format, extract
It realizes that line is closed into the format two dimension family the SHP room face in face, merges two-dimentional family room face and corresponding balcony, for the two-dimentional family room
The attribute assignment in face, and generate the identifier of relevant to interior construction area is covered closing and semiclosed balcony；
Step 2: the operation of the Auto-matching based on tangent space method being carried out to the two-dimentional family room face, realizes identical structure but place
Figure layer in the two-dimentional family room face of different floors is stacked automatically to be updated with attribute value, and generates the two dimension of corresponding house number of plies quantity
Family room face constructs the incidence relation of two-dimentional building table family room in two-dimentional family room face and freehold nationality database, passes through " settling "
Construction area verification is in set afterwards to check whether the two-dimentional family room of three-dimensional building model unanimously matches with its attribute value；
Step 3: extracting house figure layer corresponding to the house Story and door based map from real estate database, extract the house
Bottom in Story and door based map, i.e. base face, by base's face automatic projection to corresponding house figure layer, as the house figure layer
The geospatial information reference in corresponding two dimension family room face；
Step 4: the three-dimensional building model construction based on base face is carried out according to the attribute value in the two-dimentional family room face；
Step 5: reading right status attribute in house from the family room table of real estate database, assigned for the three-dimensional building model
Value；
Step 6: Show Styles rendering being carried out to the three-dimensional building model according to corresponding right status attribute, output applies three
Tie up building model；
Step 7: according to the three-dimensional building model of the application, being reorganized by data format, output is applied to large scale scene
The OSGB format of displaying, applied to response map datum service request Shapefile format and to be applied to small scale scene real
When information details show GeoJson format three kinds of different data organizational forms three-dimensional building model, to adapt to more rulers
Degree and different LOD ranks three-dimensional building model the end Web browsing and inquiry.
2. a kind of three-dimensional building model building method applied to three-dimensional real estate information management as described in claim 1,
Be characterized in that: it is described two dimension family room face be by format conversion and line be closed into face operation after include several family rooms, have it is bright
True boundary, topologically correct two-dimentional house division figure layer；
The attribute in the two dimension family room face includes: two-dimentional family room basal plane identification code, real estate unit number, natural building number, logic building
Number, physical layer number, nominal level number, unit number, basal plane elevation, affiliated ancestor number, starting level number, terminate level number, height, room
Number, family number, affiliated ancestor number, balcony model identifier and inside space；
It is extracted with the data preprocessing method based on house Story and door based map according to the house Story and door based map of the DWG format
The attribute in the two-dimentional family room face in house Story and door based map is extracted in the two-dimentional family room face of SHP format with attributes extraction method.
3. a kind of three-dimensional building model building method applied to three-dimensional real estate information management as described in claim 1,
It is characterized in that: described " Auto-matching " when executing step 2: to extract and simplifying Story and door based map outer profile polygon
On the basis of, respectively to the outer contour shape building initialization tangent space described function of source figure layer and figure layer to be matched, by asking
The translation set of the initial tangent space described function of the outer profile of solution source figure layer and figure layer to be matched, reconstructs corresponding tangent space letter
Number obtains starting point of the similarity apart from the smallest solution and composition minimal solution between the two, finally rising to the minimal solution of acquirement
Initial point position takes difference, solves the matching distance of Story and door based map to be matched, completes the higher Story and door based map of result reliability
Auto-matching.
4. a kind of three-dimensional building model building method applied to three-dimensional real estate information management as described in claim 1,
It is characterized in that: described " settling " when executing step 2: as to construct two dimension in two-dimentional family room face and freehold nationality database
The incidence relation of building table family room reads obligee, natural building number, logic building volume from the attribute of the two-dimentional building table family room
Number, floor number, room serial number or family room number and construction area in covering；Nature building number, logic are extracted from the two-dimentional family room face
Building number, physical layer number, nominal level number, unit number, basal plane elevation, affiliated ancestor number, initial layers, stop layer, floor are high and set is built-in
Build area；Interior construction area is covered from two-dimentional family room face is corresponding to acquisition in the room of two-dimentional building table family, area verification is carried out with this, with
Ensure that two-dimentional family room face matches unanimously with its attribute value.
5. a kind of three-dimensional building model building method applied to three-dimensional real estate information management as described in claim 1,
It is characterized in that: described " automatic projection " when executing step 3: as to extract house corresponding to the house Story and door based map
Figure layer is as perspective plane, with the bottom in the house Story and door based map, i.e. base face, as perspective plane.Determining projection rule
Then and after the angle of calculating subpoint rotation, four known points for choosing base face are projected as reference projection point to house figure layer
On.
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| CN111177838A (en) * | 2019-12-30 | 2020-05-19 | 北京禹数技术有限公司 | Data processing method and device based on three-dimensional building model and electronic equipment |
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| CN111986320A (en) * | 2020-04-28 | 2020-11-24 | 南京国图信息产业有限公司 | DEM and oblique photography model space fitting optimization algorithm for smart city application |
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| CN110779479B (en) * | 2019-09-02 | 2022-01-14 | 腾讯科技（深圳）有限公司 | Object processing method applied to indoor map |
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| CN116580162A (en) * | 2023-07-13 | 2023-08-11 | 北京超图软件股份有限公司 | House three-dimensional model building method, device, equipment and storage medium |
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| CN116956423A (en) * | 2023-07-27 | 2023-10-27 | 重庆市规划和自然资源调查监测院 | Automatic modeling method and system based on property layering household map |
| CN116956423B (en) * | 2023-07-27 | 2024-02-09 | 重庆市规划和自然资源调查监测院 | Automatic modeling method and system based on property layering household map |
| CN117556512A (en) * | 2023-11-28 | 2024-02-13 | 杭州中房信息科技有限公司 | Efficient generation method, medium and equipment for building table overview chart adapting to complex data |
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