CN105354345A

CN105354345A - Real-time browsing method for three-dimensional underground space full-element model

Info

Publication number: CN105354345A
Application number: CN201410271669.4A
Authority: CN
Inventors: 田春来; 邓世军; 王永杰; 熊鑫; 韩晓晖; 王静
Original assignee: Interstellar Space (tianjin) Technology Development Co Ltd
Current assignee: Interstellar Space (tianjin) Technology Development Co Ltd
Priority date: 2014-06-18
Filing date: 2014-06-18
Publication date: 2016-02-24
Anticipated expiration: 2034-06-18
Also published as: CN105354345B

Abstract

The invention discloses a real-time browsing method for a three-dimensional underground space full-element model, and relates to a technology for displaying virtual reality on a display screen. The method comprises the following steps of performing unification processing on underground space source data; performing dynamic three-dimensional model construction on stratum data; performing entity model construction on underground space data except the stratum; and performing real-time mutex scheduling browsing on three-dimensional underground space full-element data. The method has the advantages that: on the basis of preprocessing the data, real-time update is performed through seamless integration of the three-dimensional space data in syntax, semantics and model level with a data mining method, so that effective integration of multi-source data and efficient creation of three-dimensional scenes of underground space of various scales are realized, dynamic real-time scheduling browsing of the underground space full-element data model is realized, and the scientificity and safety of urban underground space planning are improved; and the unified display, management and analysis level of the underground space is improved.

Description

A kind of three-dimensional underground space full feature model real-time browsing method

Technical field

The present invention relates to and show virtual reality technology on a display screen, simulate in particular to the distribution situation by formation, realize the dynamic realtime scheduling of underground space total factor data model, improve the three-dimensional underground space full feature model real-time browsing method of urban underground space planning efficiency.

Background technology

Urban underground space is a huge and abundant space resources, and the developable stock number of urban underground space is can be long-pending for the area of exploitation, the reasonable development degree of depth and suitable available factor." Chinese underground space industry development prospect and investment strategy planning application are looked forward to the prospect " shows, within 2012, China's town site total area is 32.28 ten thousand hectares, the Exploitation Depth of the coefficient developed according to 40% and 30 meters calculates, and can just reach 3873.60 billion cubic meters for the Underground Space Resource amount of reasonable development.This is a very considerable and rich in natural resources, if obtain reasonable development, so will to expansion city space, realize city intensivization development and have great importance.

Along with the exploitation of China one line urban underground space, underground shallow layer part will utilize complete, and along with the gradual perfection of deep excavation technology and equipment, in order to fully utilize Underground Space Resource, underground space development will progressively to Deep Development.While underground space deep layer, each space aspects differentiation due is more and more stronger.The underground space of this point of aspect, centered by people and the functional areas for its service, people, car shunting, the process of municipal pipeline, sewage and rubbish is placed in different levels, various underground traffic also layering is arranged, and to reduce mutual interference, ensure that the adequacy that the underground space utilizes and integrality.

The exploitation underground space is the important development trend of 21 century Structural Engineering.For now, develop urban underground space can be applicable to:

1, means of transportation: Urban Underground Passage, city underground, tunnel;

2, commercial facility: underground commercial center, to travel shop under water;

3, underground garage: the individual of the public parking and residential district that solve downtown area is stopped;

4, municipal public good pipeline facility: improve urban road and utilize, protect underground installation steady running, provide headspace for adding facility later;

5, Comprehensive Disaster Prevention for Cities construction: people's air defence, to withstand natural calamities;

6, military engineering: military commanding center, underground, important military installations (military optical cable, passage, material stock etc.);

7, storage facilities: oil cellar (memory space large, fire safety, steady quality, maintenance easy);

8, the skyscraper underground space: increase floor area of building, combat a natural disaster shockproof.

The utilization of the underground space plays an important role to improving ground environment as can be seen here.While development underground traffic, reduction urban atmospheric pollution, also should advocate and build urban underground municipal pipelines pubilc utility tunnel, by included to tap water, blow-off pipe, heating tube, cable and communication line, path length can be shortened and reach 30%, also be easy to check and repair, do not affect the use in soil, ground.Underground garbage disposal system also can be developed in city with good conditionsi, eliminates rubbish " besieged city " phenomenon.

But because underground space disguise compared with aboveground space is stronger, formation information should not be observed, and underground installation should not change and safeguard after construction is improved.Traditional underground space is all the analysis by being carried out data after exploration by papery or electronic document page, professional person is needed to provide analysis report by experience by instrument and equipment, waste a large amount of funds, time and human resources, and have possibility that error occurs when calculating and analyzing and the information of the underground space can not be observed intuitively.

At present, dimensionally learning simulation field and realized the 3D modeling of simple target on the ground, the multi-resolution representations of ground view etc. are ripe, and owing to there is formation data in the underground space, Underground Pipeline Data, Underground Rail Transit data, the multi-resolution representation of the complex information multiresolution integrated models such as underground buildings or structures, the gordian techniquies such as the efficient renewal of integrated model and the calculating of high-effect space also do not break through, particularly descend the 3D integrated moulding technology of complex target on a large scale and carry out underground space roaming according to the visual angle used and can reach the function that real-time monitored differently descends spatial information.

Meanwhile, due to the impact that the mode difference that the source of data is different, gather, different scale, different semanteme, different pieces of information quality, different-format, different coordinate bring, the conversion of data layout is often paid attention in existing research.Therefore, lack the unified expression model of three dimensions object, be difficult to be converted to complete information by data.Carrying out on pretreated basis to data, adopt data digging method, by the three-dimensional space data Seamless integration-on syntax, semanteme and model level, real-time update realizes multi-source data and to effectively integrate and the efficient establishment of three-dimensional scenic of the underground space of various scale remains the current advanced subject of international this area and the emphasis of research.

Summary of the invention

The embodiment of the present invention provides a kind of three-dimensional underground space full feature model real-time browsing method, the present invention can by carrying out on pretreated basis to data, adopt data digging method, by the three-dimensional space data Seamless integration-on syntax, semanteme and model level, real-time update realizes multi-source data and effectively integrates and the efficient establishment of three-dimensional scenic of the underground space of various scale; Simulated by the distribution situation of formation, realize the dynamic realtime scheduling of underground space total factor data model, improve the science of urban underground space planning, security.Solve the problem that current stratigraphic model exhibition method is single, underground space model display only stresses single key element, improve the unified displaying of the underground space, management and analysis level.Reached by the visual angle change of observer and can browse underground space scene in real time in three dimensions, achieve multi-platform data integrated; For three-dimensional model brings brand-new experience, facilitate effect that is true to nature, fine modeling.For urban construction especially following smart city is built in the acquisition of underground space information and constructing plan on serve important booster action.In the fast development of urban construction, drive the large-scale development of urban underground space resource.Advance city orientation, orderly development, and advance the three-dimensional development of city space and the exploitation of underground commerce traffic; The protection potential of abundant exploitation Underground Space Resource, serves certain booster action to raising Comprehensive Disaster Prevention for Cities capability to resist destruction.

The embodiment of the present invention provides a kind of three-dimensional underground space full feature model real-time browsing method, it is characterized in that, comprises the steps:

The unitized process of underground space source data;

Formation data carry out three-dimensional model dynamic construction;

Solid model structure is carried out to the underground space data except stratum;

Carry out in real time dynamically mutual exclusion scheduling to three-dimensional underground space total factor data to browse.

A kind of three-dimensional underground space full feature model real-time browsing method, wherein:

The unitized process of described underground space source data: underground space data carried out arranging, hierarchical partition, perfect, then carries out electronic standard process by the every layer data got, stores according to different storage formats;

Described underground space source data unitize process concrete steps be:

The unified process of data: the underground space data of different file layout are carried out unifying file layout process;

Sequence, numbering: the formation data in the underground space data of unified file layout is sorted according to the degree of depth, and is numbered according to unified coding rule formation data;

Signal auditing: abnormal information and error message are processed by computing machine and artificial inspection two kinds of modes;

Data store: the underground space data after process be stored into respectively in database according to different classes of;

Data processing: the data message of persistent collection is carried out consolidation form process and is numbered;

Database is perfect: by merging mutually with legacy data in the data information memory of renewal to database, improve database information.

Described formation data carry out three-dimensional model dynamic construction: based on formation data, carry out the three-dimensional model of strata condition in dynamic construction reflection certain area coverage with the Orientation differences of observation station;

The concrete steps that described formation data carry out three-dimensional model dynamic construction are:

Structure regional extent is determined: put current direction and position calculation modeling regional extent according to the observation, centered by current observation point, with certain radius determination modeling regional extent;

Data decimation: utilize spatial overlay analysis to select the formation data treated in modeling region, formation information is successively extracted according to stratum numbering, determines the three-dimensional model institutional framework on each stratum;

Build grid insertion point: based on the formation data that spatial overlay analysis is selected, build grid insertion point according to stratal configuration;

Data structure building: with the grid insertion point built for unique point, generates suitable space gengon data structure;

Form three-dimensional model: space gengon data structure carried out playing up visual, form the stratum three-dimensional model that can show.A kind of three-dimensional underground space full feature model real-time browsing method, wherein: stratum set-up procedure can be provided with between data decimation and structure grid insertion point; Wherein the concrete steps of stratum adjustment are:

Stratum adjusts: other stratal configuration be associated with this stratum according to situation adjustment such as lost strata, stratum phacoiies.

Described solid model structure is carried out to the underground space data except stratum: for other underground space data except stratum, carry out the foundation of structural strength test;

Describedly to the concrete steps that the underground space data except stratum carry out solid model structure be:

Framing modeling: framing modeling is carried out, with single map sheet for three-dimensional entity model is carried out framing and Modling model by scope to the underground space data except stratum;

Layered shaping: the underground space data of layered shaping except stratum, are divided into many levels by three-dimensional entity model after framing process according to data type;

Model is split: the underground space data of piecemeal process except stratum, and three-dimensional entity model after layered shaping is carried out piecemeal process;

Enter library model: named by unified naming rule by the model after dividing processing and import in model bank;

Span index: set up the spatial index to solid model: span index file, and the solid model reference information in model bank is stored in the leaf node of spatial index.

A kind of three-dimensional underground space full feature model real-time browsing method, wherein, is carrying out model segmentation and is entering between library model being provided with classification treatment step to underground spatial data; Wherein the concrete steps of classification process are:

Classification process: the underground space data of classification process except stratum, by the three-dimensional entity model after piecemeal according to display level in various degree, carries out face and deletes and texture compression operation, form multi-level model.

Describedly in real time dynamically mutual exclusion scheduling is carried out to three-dimensional underground space total factor data browse: stratigraphic model and other underground space model are merged and carries out scheduling after unifying to process and show three-dimensional underground space total factor data;

Describedly in real time dynamically mutual exclusion is carried out to three-dimensional underground space total factor data dispatch the concrete steps browsed and be:

Real-time Obtaining stratigraphic model: the real-time change in space of points orientation according to the observation, builds the three dimension strata model of corresponding position in real time;

Other underground space model of Real-time Obtaining: the real-time change in space of points orientation according to the observation, spatial index calls corresponding position other underground space solid model except stratigraphic model;

Extract real-time underground space mutual exclusion model: in Real-Time Scheduling process, when there is stratigraphic model and other underground space solid model overlaps, determine other underground space solid model of coincidence according to spatial relationship, extract other underground space solid model outside surface of coincidence;

Calculate the part that surface of stratum overlaps with other underground space solid model outside surface, hide the surface of stratum part overlapped;

When stratigraphic model and other underground space solid model do not exist overlap time, hiding surface of stratum part shows again.

A kind of three-dimensional underground space full feature model real-time browsing method, wherein: described underground space data comprise: formation data, Underground Pipeline Data, pile foundation data, pattern foundation pit supporting structure data, Underground Rail Transit data, market place builet below the ground data, underground parking field data, other underground buildings or structures data; Described modeling regional extent can comprise the gengon region of the position residing for current observation point, this gengon region be hollow-core construction and this Domain Volume between 1 ~ 20000000 cubic metre.

A kind of three-dimensional underground space full feature model real-time browsing method, wherein: space gengon data structure is carried out in described formation three-dimensional model step play up visual in visual concrete steps of playing up be: by unitized for stratigraphic signature legend process; Coordinate of each point of foundation model and the axis in face, coordinate place, the normal coordinate of coordinates computed; Texture coordinate or color coordinates is calculated according to normal coordinate; Texture or color are set.

A kind of three-dimensional underground space full feature model real-time browsing method, wherein: the concrete steps of described stratum adjustment are:

Adjust in real time and this formation data and other stratal configuration associated with it according to described lost strata situation and described stratum phacoid situation;

When having the underground space data of hidden layer, around it, the stratal configuration of the underground space data correlation of minimum distance can pinching between, adjusts the structure on the stratum, the upper and lower of this hidden layer next-door neighbour simultaneously;

When having the underground space data on phacoid stratum, stratal configuration of its association can around it minimum distance underground space data between pinching, adjust the structure on stratum, the upper and lower of this phacoid stratum next-door neighbour simultaneously.

As can be seen here:

Three-dimensional underground space full feature model real-time browsing method in the embodiment of the present invention can meet:

By carrying out on pretreated basis to data, adopt data digging method, by the three-dimensional space data Seamless integration-on syntax, semanteme and model level, real-time update realizes multi-source data and effectively integrates and the efficient establishment of three-dimensional scenic of the underground space of various scale; Simulated by the distribution situation of formation, realize the dynamic realtime scheduling of underground space total factor data model, improve the science of urban underground space planning, security.Solve the problem that current stratigraphic model exhibition method is single, underground space model display only stresses single key element, improve the unified displaying of the underground space, management and analysis level.Reached by the visual angle change of observer and explicitly can descend spatial scene in real time in three dimensions, achieve multi-platform data integrated; Browse for said three-dimensional body frame model and bring brand-new experience, facilitate effect that is true to nature, fine modeling.For urban construction especially following smart city is built in the acquisition of underground space information and constructing plan on serve important foundation and driven large-scale developing and utilizing of urban underground space resource in the fast development of urban construction.Advance city orientation, orderly development, and advance the three-dimensional development of city space and the exploitation of underground commerce traffic; The protection potential of abundant exploitation Underground Space Resource, improves Comprehensive Disaster Prevention for Cities capability to resist destruction and serves certain booster action.

accompanying drawing explanation

Fig. 1 is the schematic flow sheet of three-dimensional underground space full feature model real-time browsing method provided by the invention;

Fig. 2 be in three-dimensional underground space full feature model real-time browsing method provided by the invention underground space source data unitize process schematic flow sheet;

Fig. 3 carries out the schematic flow sheet of one of the three-dimensional model dynamic construction form of expression for formation data in the three-dimensional underground space full feature model real-time browsing method that provides in the embodiment of the present invention;

Fig. 4 carries out the schematic flow sheet of one of the three-dimensional model dynamic construction form of expression for formation data in the three-dimensional underground space full feature model real-time browsing method that provides in the embodiment of the present invention;

Fig. 5 is for carrying out to the underground space data except stratum the schematic flow sheet that solid model builds one of the form of expression in the three-dimensional underground space full feature model real-time browsing method that provides in the embodiment of the present invention;

Fig. 6 is for carrying out to the underground space data except stratum the schematic flow sheet that solid model builds one of the form of expression in the three-dimensional underground space full feature model real-time browsing method that provides in the embodiment of the present invention;

Fig. 7 carries out in real time dynamically mutual exclusion in the present invention's three-dimensional underground space full feature model real-time browsing method to dispatch the schematic flow sheet browsed;

Fig. 8 is the schematic flow sheet of three-dimensional underground space full feature model real-time browsing method provided by the invention.

Embodiment

The present invention program is understood better in order to make those skilled in the art person, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.

Embodiment 1:

The schematic flow sheet of the three-dimensional underground space full feature model real-time browsing method that Fig. 1 provides for the present embodiment, as shown in the figure, the method following steps:

A kind of three-dimensional underground space full feature model real-time browsing method, comprises the steps:

S1: the unitized process of underground space source data;

S2: formation data carry out three-dimensional model dynamic construction;

S3: solid model structure is carried out to the underground space data except stratum;

S4: dynamically mutual exclusion scheduling is carried out in real time to three-dimensional underground space total factor data and browses.

The three-dimensional underground space full feature model of one as shown in Figure 2 real-time browsing method, wherein:

Described underground space source data unitize process concrete steps be:

The three-dimensional underground space full feature model of one as shown in Figure 3 real-time browsing method, wherein:

Stratum adjusts: other stratal configuration be associated with this stratum according to situation adjustment such as lost strata, stratum phacoiies;

Form three-dimensional model: space gengon data structure carried out playing up visual, form the stratum three-dimensional model that can show.

The three-dimensional underground space full feature model of one as shown in Figure 5 real-time browsing method, wherein:

Solid model structure is carried out to the underground space data except stratum: for other underground space data except stratum, carry out the foundation of structural strength test;

Classification process: the underground space data of classification process except stratum, by the three-dimensional entity model after piecemeal according to display level in various degree, carries out face and deletes and texture compression operation, form multi-level model;

The three-dimensional underground space full feature model of one as shown in Figure 7 real-time browsing method, wherein:

Carry out in real time dynamically mutual exclusion scheduling to three-dimensional underground space total factor data to browse: stratigraphic model and other underground space model are merged and carries out scheduling after unifying to process and show three-dimensional underground space total factor data;

Extract real-time underground space three-dimensional model: in Real-Time Scheduling process, when there is stratigraphic model and other underground space solid model overlaps, determine other underground space solid model of coincidence according to spatial relationship, extract other underground space solid model outside surface of coincidence;

In a particular embodiment: space gengon data structure is carried out in described formation three-dimensional model step play up visual in visual concrete steps of playing up be: by the unitized process of stratigraphic signature legend; Coordinate of each point of foundation model and the axis in face, coordinate place, the normal coordinate of coordinates computed; Texture coordinate or color coordinates is calculated according to normal coordinate; Texture or color are set.

In a particular embodiment: the concrete steps of described stratum adjustment are:

In specific embodiment, described underground space data can be: formation data, Underground Pipeline Data, pile foundation data, pattern foundation pit supporting structure data, Underground Rail Transit data, market place builet below the ground data, underground parking field data, other underground buildings or structures data.

In specific embodiment, described modeling regional extent can comprise the gengon region of the position residing for current observation point.

In specific embodiment, it is leg-of-mutton gengon region that described modeling region can be plane section.

In specific embodiment, described modeling region can be sphere.

In specific embodiment, described modeling region can be the Four-sided Body Area that plane section is quadrilateral.

In specific embodiment, described modeling region can be the gengon region that plane section is irregular figure.

In specific embodiment, the inside in described modeling region is hollow-core construction.

In specific embodiment, the volume in described modeling region is 1 cubic metre.

In specific embodiment, the volume in described modeling region is 500 cubic metres.

In specific embodiment, the volume in described modeling region is 20000000 cubic metres.

Application this method is elaborated to the model method dimensionally descending spatial data to carry out the extraction acquisition underground space Real-Time Scheduling of total factor below with a concrete case study on implementation.Adopt this three-dimensional underground space full feature model real-time browsing method can stratum three-dimensional model around real-time monitored to observation point, underground utilities three-dimensional model, the three-dimensional model of the constructions of structures such as the three-dimensional model of Underground Rail Transit facility and underground pile foundation three-dimensional model, pattern foundation pit supporting structure three-dimensional model, market place builet below the ground three-dimensional model, underground parking.

Formation data, underground utilities, Underground Rail Transit and other construction of structures in underground space data are carried out raw data arrangement respectively, finds out the data associated documents of required three-dimensional model within the scope of solid modelling.Carry out hierarchical partition and perfect according to these documents again, then the every layer data got is carried out electronic standard process, store according to different storage formats.

Wherein: formation data derives from the information collected by geotechnical investigation, obtain formation lithology information by soil test simultaneously, carry out layered shaping by the formation information such as texture properties, physical property, lithology on stratum and form analysis report.All analysis reports are carried out the process of electronic standard, and by these information unification file layouts.Unification file layout is obtained formation data sort according to the degree of depth, and encode according to unified coding rule formation, form stratum label, go out relational data by encode fusion technique construction.

First checked the formation data after process by computing machine, reject abnormal data, the numbering of formation data checks.And then by the mode of hand inspection, these data are audited, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by formation information again.

When formation information carries out more elaborate geotechnical investigation in plot, carry out testing acquisition analysis report, carrying out the process of unified electronic standard with the data message formerly obtained to this ground, coding carries out man-machine interaction again form after forming stratum label is rejected and revises error message.The formation data information of renewal to be stored in database and to merge mutually with prime stratum data, improving database information.

Underground utilities in underground space data, Underground Rail Transit and other construction of structures are carried out raw data arrangement respectively, finds out the data associated documents of required three-dimensional model within the scope of solid modelling.Again hierarchical partition and perfect is carried out to these raw data, then the every layer data got is carried out electronic standard process, store according to different storage formats.

From the file after electronization, obtain the spatial dimension of related data, in spatial dimension, spatial positional information and attribute information are extracted, obtain the data message needed for detailed three-dimensional modeling.Data message after extracting is undertaken processing by process software and storage format needed for three-dimensional drawing stores, thus obtain underground utilities, Underground Rail Transit and the data needed for other construction of structures.

By computing machine, underground utilities, Underground Rail Transit and other construction of structures data after process are checked, abnormal data is rejected.By the mode of hand inspection, these data are audited again, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by these data again.

In specific embodiment, company's limit data of underground utilities, Underground Rail Transit and other construction of structures data shown by two width map sheets are carried out checking emphatically, amendment error message.Confirm errorless after store respectively according to the classification of each data again.

In specific embodiment, for Underground Pipeline Data.According to the different classes of spatial dimension being obtained natural gas pipeline, water distribution pipeline line and wastewater treatment pipeline by drawing of pipeline.These drawings are carried out hierarchical partition and perfect, then the drawing comprising natural gas pipeline, water distribution pipeline line and wastewater treatment pipeline data is carried out electronic standard process respectively, be stored in the database at its place according to its generic by all information of natural gas pipeline data, in like manner water distribution pipeline line and wastewater treatment pipeline data are stored in its relevant database and store.

The spatial dimension of natural gas pipeline, water distribution pipeline line and wastewater treatment pipeline related data is obtained from the file after electronization, in spatial dimension, the spatial positional information of natural gas pipeline, water distribution pipeline line and wastewater treatment pipeline and attribute information are extracted, obtain the data message needed for detailed three-dimensional modeling.Data message after extracting is undertaken processing by process software and storage format needed for three-dimensional drawing stores.

Checked by the data of computing machine to natural gas pipeline, water distribution pipeline line and wastewater treatment pipeline after process, abnormal data is rejected.By the mode of hand inspection, these data are audited again, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by these data again.

When there being new pipe installation, the drawing recording new pipeline data being carried out electronic disposal and data processing and merging with the pipeline information in raw data base through data examination & verification again, improving database information.

Underground space total factor is carried out model construction time, respectively the information of stratigraphic model and other underground space key element except stratum is built.The method of wherein carrying out dynamic construction at formation three-dimensional model is:

First set observation point, point centered by observation point, and diffuse to form a modeling regional extent along this central point respectively to surrounding, ensure this observation point to all directions motion can be real-time the three-dimensional model observing subsurface three-dimensional space.Wherein, point centered by observation point in the present case, respectively expands 50 meters along central point respectively to orientation, four, all directions, then carries out Depth Expansion 200 meters and determine that the scope in modeling region is 2000000 cubic metres.

Transfer the data message in formation data storehouse, the data in the modeling region then utilizing spatial overlay analysis method and observation point to determine carry out mating and extract real-time selects the formation information treated in modeling region.Formation information in this region is successively extracted according to stratigraphic fluctuation, determines the three-dimensional model institutional framework on each stratum within the scope of this.In three-dimensional formation institutional framework, often there will be lost strata and stratum phacoid situation, therefore need formation data to carry out intense adjustment.Concrete set-up procedure is:

When occurring that formation data lacks to collect the underground space data of hidden layer, around it, the stratal configuration of the underground space data correlation of minimum distance can pinching between, adjust the structure on the stratum, the upper and lower of this hidden layer next-door neighbour simultaneously, form more perfect three-dimensional formation institutional framework.

When having the underground space data on phacoid stratum, its association stratal configuration can around it minimum distance underground space data between pinching, adjust the structure on the stratum, the upper and lower of this phacoid stratum next-door neighbour simultaneously, form more perfect three-dimensional formation institutional framework.

Based on perfect three-dimensional formation institutional framework, then select formation data with spatial overlay analysis, construct the grid insertion point in correlation modeling region according to stratal configuration.For the modeling region of 2000000 cubic metres, base area Rotating fields in this region, carry out connection according to 25 meters, interval on every bar limit of this formation data in this modeling region and build grid insertion point, ground, each insertion point layer height carries out interpolation calculation with existing survey data, be unique point by the grid insertion point of structure, grid insertion point is connected, generates suitable space gengon data structure.

Space gengon data structure is carried out play up visual, form the stratum three-dimensional model that can show.Wherein playing up visual concrete steps is: can by the unitized process of stratigraphic signature legend; Coordinate of each point of foundation model and the axis in face, coordinate place, the normal coordinate of coordinates computed; Texture coordinate or color coordinates is calculated according to normal coordinate; Texture or color are set.

Solid model structure is carried out to the underground space data except stratum.The data of underground utilities, Underground Rail Transit and other construction of structures are transferred in a database respectively before model construction.Data after transferring are carried out framing modeling, wherein with single map sheet for three-dimensional entity model to be carried out framing process and according to map sheet Modling model by scope.Again each framing three-dimensional model is carried out layering, piecemeal and classification process.Wherein, the mode of 2X2 or the mode of 4X4 can be selected map sheet to be processed.

Model after framing, layering, piecemeal and classification is named according to unified naming rule, and the sectional pattern after name is imported in model bank and stores.Need the entity model information in model bank to quote according to modeling, and these reference information are stored in the leaf node of spatial index, facilitate the Dynamic Announce of three-dimensional underground space full feature model Real-Time Scheduling.

Real-Time Scheduling can be carried out by quaternary tree form to underground space models such as underground utilities, Underground Rail Transit and other constructions of structures in specific embodiment.

Real-Time Scheduling can be carried out by Octree form to underground space models such as underground utilities, Underground Rail Transit and other constructions of structures in specific embodiment.

Dimensionally play spatial model to carry out merging the three dimension strata model of Real-time modeling set and other and carry out in real time dynamic mutual exclusion after unify process to dispatch and browse.

First, obtain real-time stratigraphic model, according to the observation space of points orientation real-time change and build the three dimension strata model at corresponding locus place in real time.Simultaneously spatial index call corresponding locus, other underground in real time other dimensionally play spatial model.

In Real-Time Scheduling process, when occurring stratigraphic model and other underground space solid model overlaps, determining other underground space solid model of coincidence according to spatial relationship, extracting other underground space solid model outside surface of coincidence;

Calculate the part that surface of stratum overlaps with other underground space solid model outside surface, hide the surface of stratum part overlapped; When stratigraphic model and other underground space solid model do not exist overlap time, hiding surface of stratum part shows again.

In specific embodiment, described modeling regional extent can comprise the quadrilateral area of the position residing for current observation point.

In specific embodiment, the volume in described modeling region is being 20000000 cubic metres.

Embodiment 2:

S1: the unitized process of underground space source data;

S2: formation data carry out three-dimensional model dynamic construction;

The unitized process of described underground space source data: underground space data carried out arranging, upgrade, hierarchical partition, perfect, then carries out electronic standard process by the every layer data got, stores according to different storage formats;

Described underground space source data unitize process concrete steps be:

The three-dimensional underground space full feature model of one as shown in Figure 4 real-time browsing method, wherein:

The three-dimensional underground space full feature model of one as shown in Figure 6 real-time browsing method, wherein:

In specific embodiment, described modeling region can be sphere.

Application this method is elaborated to the model method dimensionally descending spatial data to carry out the extraction acquisition underground space Real-Time Scheduling of total factor below with a concrete case study on implementation.Adopt this three-dimensional underground space full feature model real-time browsing method can the three-dimensional model of total factor of underground space data selectively around real-time monitored to observation point, also can show respectively by three-dimensional model each key element of the underground space, to dispatch and show stratum three-dimensional model in the present embodiment, underground utilities three-dimensional model, the three-dimensional model of Underground Rail Transit facility.

Formation data, underground utilities, Underground Rail Transit in underground space data are carried out raw data arrangement respectively, finds out the data associated documents that solid modelling formulates required three-dimensional model in scope.Carry out hierarchical partition and perfect according to these documents again, then the every layer data got is carried out electronic standard process, store according to different storage formats.

Wherein: formation data derives from the information collected by geotechnical investigation, obtain formation lithology information by soil test simultaneously, carry out layered shaping by the formation information such as texture properties, physical property, lithology on stratum and form analysis report.All analysis reports are carried out the process of electronic standard, and by these information unification file layouts.Unification file layout is obtained formation data sort according to the degree of depth, and encode according to unified coding rule formation, form stratum label.Relational data is gone out by encode fusion technique construction.

When formation information carries out more elaborate geotechnical investigation in a certain plot, carry out testing acquisition analysis report, carrying out the process of unified electronic standard with the data message formerly obtained to this ground, coding carries out man-machine interaction again form after forming stratum label is rejected and revises error message.The formation data information of renewal to be stored in database and to merge mutually with prime stratum data, improving database information.

Underground Rail Transit data in underground space data are carried out raw data arrangement, finds out the data associated documents of required three-dimensional model within the scope of solid modelling.Carry out hierarchical partition and perfect according to these documents again, then the every layer data got is carried out electronic standard process, store according to different storage formats.

From the file after electronization, obtain the spatial dimension of related data, in spatial dimension, spatial positional information and attribute information are extracted, obtain the data message needed for detailed three-dimensional modeling.Data message after extracting is undertaken processing by process software and storage format needed for three-dimensional drawing stores, thus obtain the data needed for Underground Rail Transit.

Computing machine checks the Underground Rail Transit data after process, rejects abnormal data.By the mode of hand inspection, these data are audited again, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by these data again.

In specific embodiment, company's limit data of the Underground Rail Transit data shown by two width map sheets are carried out checking emphatically, amendment error message.Confirm errorless after store according to the classification of data again.

Underground utilities in underground space data are carried out raw data arrangement.According to the different classes of spatial dimension being obtained natural gas pipeline, power pipeline, heating pipeline, communication pipeline, water distribution pipeline line and wastewater treatment pipeline by drawing of pipeline.These drawings are carried out hierarchical partition and perfect, then respectively the drawing of display natural gas pipeline, power pipeline, heating pipeline, communication pipeline, water distribution pipeline line and wastewater treatment pipeline data is carried out electronic standard process respectively, according to the generic of each pipeline these data are stored in relevant database and store.

The spatial dimension of natural gas pipeline, power pipeline, heating pipeline, communication pipeline, water distribution pipeline line and wastewater treatment pipeline related data is obtained from the file after electronization, by according to demand, the spatial positional information and attribute information of wanting required pipeline are extracted in spatial dimension, obtain detailed natural gas pipeline, power pipeline, heating pipeline, communication pipeline, water distribution pipeline line and the data message needed for wastewater treatment pipeline three-dimensional modeling.Data message after extracting is undertaken processing by process software and storage format needed for three-dimensional drawing stores.

By computing machine, natural gas pipeline, power pipeline, heating pipeline, communication pipeline, water distribution pipeline line and the wastewater treatment pipeline data after process are checked, abnormal data is rejected.By the mode of hand inspection, these data are audited again, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by these data again.

Underground space total factor is carried out model construction time, respectively the information obtaining underground space key element containing underground utilities, Underground Rail Transit, market place builet below the ground and underground parking is built.The construction method of the concrete three-dimensional model wherein when formation builds is:

First set observation point, point centered by observation point, and diffuse to form a modeling regional extent along this central point respectively to surrounding, ensure this observation point to all directions motion can be real-time the three-dimensional model observing subsurface three-dimensional space.Wherein, point centered by observation point, respectively expands 50 meters along central point respectively to multiple orientation in the present case, forms a spheroid, determines that the scope in modeling region is 523000 cubic metres.

Transfer the data message in formation data storehouse, the data in the modeling region then utilizing spatial overlay analysis method and observation point to determine carry out mating and extract real-time selects the formation information treated in modeling region.Formation information in this region is successively extracted according to stratigraphic fluctuation, determines the three-dimensional model institutional framework on each stratum within the scope of this.Wherein, determining first to determine each stratum engineering three-dimensional tissue structures in three-dimensional formation institutional framework, all geotechnical investigation information is being built into three-dimensional formation institutional framework by being calculated by algorithm after triangle gridding again.

In three-dimensional formation institutional framework, often there will be lost strata and stratum phacoid situation, therefore need formation data to carry out intense adjustment.Concrete set-up procedure is:

Based on perfect three-dimensional formation institutional framework, then select formation data with spatial overlay analysis, construct the grid insertion point in correlation modeling region according to stratal configuration.For 523000 cubic metres of modeling regions, base area Rotating fields in this region, carry out connection according to 10 meters, interval on every bar limit of this formation data in this modeling region and build grid insertion point, ground, each insertion point layer height carries out interpolation calculation with existing survey data, be unique point by the grid insertion point of structure, grid insertion point is connected, generates suitable space sphere data structure.

Solid model structure is carried out to the underground space data except stratum.The data of underground utilities, Underground Rail Transit are transferred in a database respectively before model construction.Data after transferring are carried out framing modeling, wherein with single map sheet for three-dimensional entity model to be carried out framing process and according to map sheet Modling model by scope.Model after framing is carried out layered shaping, and the model after finally map sheet being decomposed carries out piecemeal process, wherein can select the mode of 2X2 or the mode of 4X4 that map sheet is carried out piecemeal process.

The model of framing, layering, piecemeal is named according to unified naming rule, and the sectional pattern after name is imported in model bank and stores.Need the entity model information in model bank to quote according to modeling, and these reference information are stored in the leaf node of spatial index, facilitate the Dynamic Announce of three-dimensional underground space full feature model Real-Time Scheduling.

Real-Time Scheduling can be carried out by quaternary tree form to underground utilities, Underground Rail Transit model in specific embodiment.

Real-Time Scheduling can be carried out by Octree form to underground utilities, Underground Rail Transit model in specific embodiment.

First, obtain real-time stratigraphic model, according to the observation the three dimension strata model at the real-time change in space of points orientation and the corresponding locus place of Real-time Obtaining.Simultaneously spatial index call corresponding locus, other underground in real time other dimensionally play spatial model.

In Real-Time Scheduling process, when occurring that stratigraphic model and underground utilities and Underground Rail Transit solid model overlap, determine coincidence underground utilities and Underground Rail Transit model according to spatial relationship, extract underground utilities and the Underground Rail Transit model outside surface of coincidence; Calculate the part that surface of stratum overlaps with underground utilities and Underground Rail Transit model outside surface, hide the surface of stratum part overlapped; When stratigraphic model and underground utilities and Underground Rail Transit solid model do not exist overlap time, hiding surface of stratum part shows again.

In specific embodiment, can person obtain demand Real-Time Scheduling display is carried out to different underground utilities models according to the observation.

In specific embodiment, described underground space data can be: formation data, Underground Pipeline Data.

In specific embodiment, described modeling regional extent can comprise the spheric region of the position residing for current observation point.

Embodiment 3:

The schematic flow sheet of the three-dimensional underground space full feature model real-time browsing method that Fig. 8 provides for the present embodiment, as shown in the figure, the method following steps:

S1: the unitized process of underground space source data;

S2: extract real-time underground space three-dimensional model;

S3: dynamically mutual exclusion scheduling is carried out in real time to three-dimensional underground space total factor data and browses.

Described underground space source data unitize process concrete steps be:

Sequence, numbering: the underground space data of unified file layout are numbered according to unified coding rule formation data;

The foundation that solid model builds storehouse is carried out to underground building data such as underground utilities, Underground Rail Transit, underground parkings;

Described concrete steps of the underground building data such as underground utilities, Underground Rail Transit, underground parking being carried out to the foundation in solid model structure storehouse are:

Carry out in real time dynamically mutual exclusion scheduling to three-dimensional underground space total factor data to browse: the different types of model in underground space model is merged and carries out scheduling after unify process and show three-dimensional underground space total factor data;

Other underground space model of Real-time Obtaining: the real-time change in space of points orientation according to the observation, spatial index calls corresponding position underground space solid model;

In specific embodiment, described underground space data can be: Underground Pipeline Data, pile foundation data, pattern foundation pit supporting structure data, Underground Rail Transit data, market place builet below the ground data, underground parking field data, other underground buildings or structures data.

In specific embodiment, described modeling region can be sphere.

Application this method is elaborated to the model method dimensionally descending spatial data to carry out the extraction acquisition underground space Real-Time Scheduling of total factor below with a concrete case study on implementation.Adopt this three-dimensional underground space full feature model real-time browsing method can the three-dimensional model of total factor of underground space data selectively around real-time monitored to observation point, also can show respectively by three-dimensional model each key element of the underground space, to dispatch in the present embodiment and explicitly underground pipelines three-dimensional model, the three-dimensional model of Underground Rail Transit facility and the underground building such as market place builet below the ground, underground parking.

The data message of the underground utilities in underground space data, Underground Rail Transit facility and the underground building such as market place builet below the ground, underground parking is carried out raw data arrangement respectively, finds out the data associated documents of required three-dimensional model within the scope of solid modelling.Carry out hierarchical partition and perfect according to these documents again, then the every layer data got is carried out electronic standard process, store according to different storage formats.

Underground Rail Transit data in underground space data and underground parking field data, market place builet below the ground data are carried out raw data arrangement respectively, finds out the data associated documents of required three-dimensional model within the scope of solid modelling.Carry out hierarchical partition and perfect according to these documents again, then the every layer data got is carried out electronic standard process, store according to different storage formats.

From the file after electronization, obtain the spatial dimension of related data, in spatial dimension, spatial positional information and attribute information are extracted, obtain the data message needed for detailed three-dimensional modeling.Data message after extracting is undertaken processing by process software and storage format needed for three-dimensional drawing stores, thus obtain data required in Underground Rail Transit, underground parking, market place builet below the ground.

Computing machine checks the Underground Rail Transit after process, underground parking, market place builet below the ground, rejects abnormal data.By the mode of hand inspection, these data are audited again, abnormal information and error message are processed.Determine that the data after process are stored in database without after any objection by these data again.

In specific embodiment, company's limit data of the Underground Rail Transit shown by two width map sheets, underground parking, market place builet below the ground are carried out checking emphatically, amendment error message.Confirm errorless after store according to the classification of each data again.

When there being new pipe installation, the drawing recording new pipeline data being carried out electronic disposal and data processing and merging with the pipeline information in raw data base through data examination & verification again, improving the data in database.

First set observation point, point centered by observation point, and diffuse to form a modeling regional extent along this central point respectively to left part, front portion and right part, ensure this observation point to all directions motion can be real-time the three-dimensional model observing subsurface three-dimensional space.Wherein, take observation point as initial point in the present case, expand 20 meters along observation point respectively to top, both sides respectively expand 50 meters to the left and right, and wherein the angle of the left and right sides is 120 degree and forms a triangle centrum, determines that the scope in modeling region is 39000 cubic metres.

Extract real-time underground space three-dimensional model: the data transferring the underground building such as underground utilities, Underground Rail Transit, market place builet below the ground and underground parking before model construction in a database respectively.Data after transferring are carried out framing modeling, wherein with single map sheet for three-dimensional entity model to be carried out framing process and according to map sheet Modling model by scope.Model after finally map sheet being decomposed carries out piecemeal process, wherein can select the mode of 2X2 or the mode of 4X4 that map sheet is carried out piecemeal process.

The model of framing, piecemeal is named according to unified naming rule, and the sectional pattern after name is imported in model bank and stores.Need the entity model information in model bank to quote according to modeling, and these reference information are stored in the leaf node of spatial index, facilitate the Dynamic Announce of three-dimensional underground space full feature model Real-Time Scheduling.

Real-Time Scheduling can be carried out by quaternary tree form to underground utilities, Underground Rail Transit and underground building object model in specific embodiment.

Real-Time Scheduling can be carried out by Octree form to underground utilities, Underground Rail Transit and underground building object model in specific embodiment.

To carry out merging containing underground space models such as underground utilities, Underground Rail Transit and underground building and carry out in real time dynamically mutual exclusion scheduling after unifying process and browse.

According to the observation the real-time change in space of points orientation and the corresponding locus place of Real-time Obtaining dimensionally play spatial model.

In specific embodiment, described modeling regional extent can comprise the triangle centrum region of the position residing for current observation point.

As can be seen here:

By carrying out on pretreated basis to data, adopt data digging method, by the three-dimensional space data Seamless integration-on syntax, semanteme and model level, real-time implementation multi-source data effectively integrates and the efficient establishment of three-dimensional scenic of the underground space of various scale; Simulated by the distribution situation of formation, realize the dynamic realtime scheduling of underground space total factor data model, improve the science of urban underground space planning, security.Solve the problem that current stratigraphic model exhibition method is single, underground space model display only stresses single key element, improve the unified displaying of the underground space, management and analysis level.Reached by the visual angle change of observer and explicitly can descend spatial scene in real time in three dimensions, achieve multi-platform data integrated; Browse for said three-dimensional body frame model and bring brand-new experience, facilitate effect that is true to nature, fine modeling.For urban construction especially following smart city is built in the acquisition of underground space information and constructing plan on serve important foundation and driven large-scale developing and utilizing of urban underground space resource in the fast development of urban construction.Advance city orientation, orderly development, and advance the three-dimensional development of city space and the exploitation of underground commerce traffic; The protection potential of abundant exploitation Underground Space Resource, improves Comprehensive Disaster Prevention for Cities capability to resist destruction.

Although depict the embodiment of the present invention by embodiment, those of ordinary skill in the art know, the present invention has many distortion and change and do not depart from spirit of the present invention, and the claim appended by wishing comprises these distortion and change and do not depart from spirit of the present invention.

Claims

1. a three-dimensional underground space full feature model real-time browsing method, is characterized in that, comprise the steps:

The unitized process of underground space source data;

Formation data carry out three-dimensional model dynamic construction;

2. one according to claim 1 three-dimensional underground space full feature model real-time browsing method, is characterized in that:

Described underground space source data unitize process concrete steps be:

3. one according to claim 1 three-dimensional underground space full feature model real-time browsing method, is characterized in that:

4. one according to claim 3 three-dimensional underground space full feature model real-time browsing method, is characterized in that: can be provided with stratum set-up procedure between data decimation and structure grid insertion point; Wherein the concrete steps of stratum adjustment are:

5. one according to claim 1 three-dimensional underground space full feature model real-time browsing method, is characterized in that:

6. one according to claim 5 three-dimensional underground space full feature model real-time browsing method, is characterized in that, is carrying out model segmentation and entering between library model being provided with classification treatment step to underground spatial data; Wherein the concrete steps of classification process are:

7. one according to claim 1 three-dimensional underground space full feature model real-time browsing method, is characterized in that:

8. one according to claim 1 three-dimensional underground space full feature model real-time browsing method, it is characterized in that, described underground space data comprise: formation data, Underground Pipeline Data, pile foundation data, pattern foundation pit supporting structure data, Underground Rail Transit data, market place builet below the ground data, underground parking field data, other underground buildings or structures data; Described modeling regional extent can comprise the gengon region of the position residing for current observation point, this gengon region be hollow-core construction and this Domain Volume between 1 ~ 20000000 cubic metre.

9. one according to claim 3 three-dimensional underground space full feature model real-time browsing method, it is characterized in that, space gengon data structure is carried out in described formation three-dimensional model step play up visual in visual concrete steps of playing up be: by unitized for stratigraphic signature legend process; Coordinate of each point of foundation model and the axis in face, coordinate place, the normal coordinate of coordinates computed; Texture coordinate or color coordinates is calculated according to normal coordinate; Texture or color are set.

10. one according to claim 4 three-dimensional underground space full feature model real-time browsing method, is characterized in that, the concrete steps of described stratum adjustment are: