CN106355640A - Ground-underground three-dimensional integrated space processing method and system - Google Patents
Ground-underground three-dimensional integrated space processing method and system Download PDFInfo
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Abstract
The invention discloses a ground-underground three-dimensional integrated space processing method and system. The ground-underground three-dimensional integrated space processing method comprises the steps of stretching and modeling two-dimensional graphs based on data of two-dimensional underground space facilities and automatically constructing three-dimensional models of underground space facilities; intersecting and clipping the top interfaces of three-dimensional models of ground space facilities and three-dimensional models of underground space facilities by reference to terrain of the ground space facilities to realize seamless integrated modeling of ground space facilities and underground space facilities and acquire the ground-underground three-dimensional integrated model; establishing a three-dimensional reference plane in a plurality of levels, judging space location relations between viewpoints and the three-dimensional space reference plane by ray discrimination, smoothing the process of viewpoint switch and realizing a smooth transition browse of ground and underground three-dimensional scenes. The ground-underground three-dimensional integrated space processing method and system is applied to enhance model generating efficiency, realize integrated expression of ground space and underground space and improve user experience.
Description
Technical field
The present invention relates to GIS-Geographic Information System field, the more particularly, to a kind of process side in above and below ground three-dimensional integratedization space
Method and system.
Background technology
21 century is the century of underground space development, and urban underground space resource is as the important natural money in city
Source, has an important impact to the economic construction in city, civil defence construction, environmental construction and sustainable development, the opening of the underground space
Send out using the support be unableing to do without existing urban underground space information and three-dimensional spatial analysis DSS.
Existing city is on the ground or underground space three-dimensional management system there is a problem of following aspects: 1. research contents
Aspect, aboveground space is isolated with underground space facility: the object of study of existing aboveground space three dimension system is mainly earth's surface landform
And texture, and superstructure and related facility, and geo-logical terrain data three in underground space three dimension system or independent
Maintain system, or independent underground utilities three dimension system, or independent underground people's air defense or traffic engineering three dimension system.2. three-dimensional
Data modeling aspect is it is impossible to realize the integrated modelling of ground-earth's surface-underground space object: as three dimensions being represented based on face
Although being easy to according to model that surface shows, texture mapping data updates, it is difficult to spatial analysis, and the mould showing based on body surface
Although type can be used to, and expression is complicated, heterogeneous object, and is easy to spatial operation and analysis, its data volume is big, calculate
Method is complicated, construction difficulty is big, geometric accuracy is not high, 3-D graphic output effect is poor.3. data structure expression aspect, existing three
Dimension gis (geographic information system, GIS-Geographic Information System) spatial data structure, one is cannot table simultaneously
Reach ground, earth's surface, the multiple spatial object in underground, two is to be difficult in same viewport simultaneously to ground, the multiple sky of earth's surface and underground
Between object implementatio8 visualization and the browsing and analyzing of correlation.4. systemic-function aspect, three-dimensional visualization effect and powerful
Spatial analysis functions are difficult to and deposit: because existing three-dimensional gis Spatial Data Model theory and technology is still immature, lead at present
The three dimensions modeling ability of upper underground SPACE/MA and three-dimensional spatial analysis ability are all extremely weak
Content of the invention
The purpose of the embodiment of the present invention is to provide processing method and the system in a kind of above and below ground three-dimensional integratedization space,
Realize the integration expression of above and below ground threedimensional model.
For achieving the above object, embodiments provide a kind of process side in above and below ground three-dimensional integratedization space
Method, comprising:
According to the data of two-dimentional underground space facility, X-Y scheme is stretched and moulding, automatically built the underground space
The threedimensional model of facility；
With the landform of aboveground space facility as reference, by the threedimensional model of aboveground space facility and the three of underground space facility
The top interface of dimension module carries out asking friendship cutting, and the Seamless integration- realizing aboveground space facility with underground space facility models,
Obtain above and below ground three-dimensional integratedization model；
Set up the three dimensions plane of reference of multiple levels, viewpoint and described three dimensions reference are judged by ray diagnostic method
The spatial relation in face, automatically switch different spatial scenes and viewpoint, and the process of smooth viewpoint switch, realizes ground Shangdi
Lower seamlessly transitting of three-dimensional scenic browses.
Preferably, methods described also includes:
According to hardware condition data process content, to the drafting time needing each model drawn in each frame picture
It is predicted；
The importance of the visuality of combination model and model calculates the factor, and the importance of each model in picture is carried out
Calculate；
Drafting time prediction result according to model and importance result of calculation, select suitable details for each model
Level, so that total drafting time of each frame picture is without departing from default threshold value.
Preferably, methods described also includes:
Carry out integrated analysis based on multiple underground space data, described integrated analysis include spatial measuring analysis,
Quality layer analysis, pipeline and structures comprehensive analysis and one or more of pipeline and geo-logical terrain comprehensive analysis.
Preferably, methods described also includes:
By way of light-maps, billboarding, cartoon grain and translucentization, key area is fabricated to finely
Scene, realizes the three-dimensional range in scene in the way of incarnation.
Preferably, described above and below ground three-dimensional integratedization model adopts the data tissue of tree-shaped data structure and layering,
Shown using loosely-coupled mode between different types of model.
Correspondingly, present invention also offers a kind of processing system in above and below ground three-dimensional integratedization space, comprising:
Underground space MBM, for the data according to two-dimentional underground space facility, X-Y scheme is carried out stretching and
Moulding, builds the threedimensional model of underground space facility automatically；
Integrated moulding module, for the landform of aboveground space facility as reference, by the threedimensional model of aboveground space facility
Carry out asking friendship cutting with the top interface of the threedimensional model of underground space facility, realize aboveground space facility and set with the underground space
The Seamless integration- modeling applied, obtains above and below ground three-dimensional integratedization model；
Scene transition module, for setting up the three dimensions plane of reference of multiple levels, judges viewpoint by ray diagnostic method
With the spatial relation of the described three dimensions plane of reference, automatically switch different spatial scenes and viewpoint, and smooth viewpoint is cut
The process changed, realizes seamlessly transitting of above and below ground three-dimensional scenic and browses.
Preferably, described system also includes:
Draw time prediction module, for according to hardware condition data process content, needing to paint in each frame picture
The drafting time of each model of system is predicted；
Importance computing module, the importance of the visuality for combination model and model calculates the factor, in picture
The importance of each model is calculated；
Level of detail chooses module, for the drafting time prediction result according to model and importance result of calculation, is
Each model selects suitable level of detail, so that total drafting time of each frame picture is without departing from default threshold value.
Preferably, described system also includes:
Integrated analysis module, for carrying out integrated analysis, described integrated analysis based on multiple underground space data
Including spatial measuring analysis, geo-logical terrain analysis, pipeline and structures comprehensive analysis and pipeline and geo-logical terrain comprehensive analysis
One or more of.
Preferably, described system also includes:
Simulation browsing module, for, by way of light-maps, billboarding, cartoon grain and translucentization, inciting somebody to action
Key area is fabricated to fine scene, realizes the three-dimensional range in scene in the way of incarnation.
Preferably, described above and below ground three-dimensional integratedization model adopts the data tissue of tree-shaped data structure and layering,
Shown using loosely-coupled mode between different types of model.
Present invention employs rule-based algorithm, according to two-dimentional underground space facility data, X-Y scheme is stretched
And moulding, automatically build threedimensional model in real time, improve the formation efficiency of model.Top by ground model and subsurface model
Bed boundary ask friendship cutting, ground model and subsurface model are carried out Seamless integration- modeling, realize the one of multi-class spatial entities
Bodyization is expressed, and is conducive to lifting entirely to descend the representability of spatial scene.Meanwhile, the present invention is also based on the multi-layer plane of reference, profit
With the three-dimensional space position relation of ray diagnostic method judgment models, automatically switch the different plane of references and viewpoint, realizes ground Shangdi
Lower seamlessly transitting of scene browses, and is conducive to strengthening Consumer's Experience.
Brief description
Fig. 1 is the method stream of the embodiment of the processing method in above and below ground three-dimensional integratedization space that the present invention provides
Cheng Tu；
Fig. 2 is the method for another embodiment of processing method in above and below ground three-dimensional integratedization space that the present invention provides
Flow chart；
Fig. 3 is that the structure of the embodiment of the processing system in above and below ground three-dimensional integratedization space that the present invention provides is shown
It is intended to.
Fig. 4 is the structure of another embodiment of processing system in above and below ground three-dimensional integratedization space that the present invention provides
Schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, it is an embodiment of the processing method in above and below ground three-dimensional integratedization space that the present invention provides
Method flow diagram.
As shown in figure 1, the processing method in described above and below ground three-dimensional integratedization space includes:
S11, according to the data of two-dimentional underground space facility, is stretched to X-Y scheme and moulding, automatically builds underground
The threedimensional model of space facility.
Present invention employs rule-based algorithm, according to two-dimentional underground space facility data, 2-D data is drawn
Stretch and the shape handles, generate three-dimensional data in real time., by subway centrage, width, height and shape taking subway tunnel as a example
Information such as (as spindle, arch and rectangles etc.), generates three-dimensional subway tunnel model in real time.Though the threedimensional model that automatization builds
So full and accurate not as refined model, but reflect the utilization power of the underground space, calculation can be measured accordingly and analyzed,
It is equally truly useful data, these Data Sources extensively, are easy to automatic business processing simultaneously, can be used as the important number of system
According to source.In the present embodiment, the threedimensional model of aboveground space facility can be modeled using existing method, is such as swashed based on three-dimensional
Three-dimensional modeling method of photoscanning etc., the present invention is not construed as limiting to this.
S12, with the landform of aboveground space facility as reference, by the threedimensional model of aboveground space facility and underground space facility
The top interface of threedimensional model carry out asking friendship cutting, the Seamless integration- realizing aboveground space facility with underground space facility is built
Mould, obtains above and below ground three-dimensional integratedization model.
Due to the threedimensional model of aboveground space facility, (following abbreviation grounds model, including superstructure model and ground scape
See model etc.) it is with reference to setting up with the landform of earth's surface, and threedimensional model (following abbreviation subsurface model, the bag of underground space facility
Include subsurface formations model and underground structure model etc.) top interface be also earth's surface landform, subsurface model and ground mould
May have such problems as intersecting and gap between type.Therefore, ground of the present invention model and subsurface model ask being essentially of friendship
Two relief models ask friendship.For example, in the middle of being embodied as, with the landform of superstructure model as reference, ground can be built
The top interface building model with subsurface formations model carries out asking friendship cutting, realizes superstructure model and subsurface formations model
Seamless integration- models.
In the middle of being embodied as, carry out the integrated moulding of ground target and landform first, first set up above-ground structures
Threedimensional model, then above-ground structures base profile point is updated relief model as constraint.The threedimensional model of underground space facility
Top interface be updated relief model, geometrical constraint is used as by updated relief model, to underground structure
Model and subsurface formations model modeling, using landform as top tangent plane cutting, are realized superstructure model and are set with the underground space
Apply model Seamless integration-.
Wherein, geologic body is made up of with lower layer plane and border stratum corresponding upper layer plane；To regular layer
Shape stratum, can directly use multilamellar tin (triangulated irregular network, TIN) modeling；
To irregular stratum, can be sorted in stratum and give code name, make each boring in stratum can not repeat to pass through certain class stratum,
The overall penetrating ground of boring will in order, and that is, between arbitrary neighborhood boring, the line of respective layer position must not intersect.
Above and below ground three-dimensional integratedization model is organized using the data using tree-shaped data structure and layering, ground,
Layer, boring and pipeline etc. represent different leaf nodes respectively.Shown using loosely-coupled mode between different types of model
Show, ground, stratum, boring and pipeline can show simultaneously, need to carry out Loosely coupled also according to analysis.
S13, sets up the three dimensions plane of reference of multiple levels, judges viewpoint and described three dimensions by ray diagnostic method
The spatial relation of the plane of reference, automatically switch different spatial scenes and viewpoint, and the process of smooth viewpoint switch, realizes ground
Seamlessly transitting of upper underground three-dimensional scenic browses.
For two spaces region above and below the ground, traditional three-dimensional gis software is typically divided by the method switching space
Do not express two spaces above and below the ground to express it is impossible to aboveground space and underground space object are carried out with integration, and on ground
Due to there are the multiclass spatial entities such as structures and geo-logical terrain in lower space, the more flexible visual angle degree of freedom of needs could be more suitable
Freely operatively descend three dimensions.The present invention is by setting up the three dimensions plane of reference of multiple levels (as above and below ground space is cut
The landform plane of reference dividing), ((send a ray from viewpoint to judge to close with the locus of threedimensional model by ray diagnostic method
System)) judge three-dimensional space position relation, judge that current view point is on the ground or in underground, when close to critical reference face, from
Move and raise or reduce viewpoint, switch different spatial scenes, automatic switchover viewpoint simultaneously, and the process of smooth viewpoint switch.
As can be seen here, present invention employs rule-based algorithm, according to two-dimentional underground space facility data to X-Y scheme
Shape is stretched and moulding, automatically builds threedimensional model in real time, improves the formation efficiency of model.By ground model and underground
The top interface of model ask friendship cutting, ground model and subsurface model are carried out Seamless integration- modeling, realize multi-class sky
Between entity integration expression, be conducive to lifting entirely to descend the representability of spatial scene.Meanwhile, the present invention is also based on multi-layer
The plane of reference, using the three-dimensional space position relation of ray diagnostic method judgment models, automatically switch the different plane of references and viewpoint, real
Seamlessly transitting of existing above and below ground scene browses, and is conducive to strengthening Consumer's Experience.
Referring to Fig. 2, it is another embodiment of the processing method in above and below ground three-dimensional integratedization space that the present invention provides
Method flow diagram.The present embodiment further includes on the basis of embodiment illustrated in fig. 1:
S14, according to hardware condition data process content, to the drafting needing each model drawn in each frame picture
Time is predicted.
S15, the importance of the visuality of combination model and model calculates the factor, the importance to each model in picture
Calculated.
S16, the drafting time prediction result according to model and importance result of calculation, it is suitable to select for each model
Level of detail, so that total drafting time of each frame picture is without departing from default threshold value.
For the online real-time visual application of above and below ground three-dimensional integratedization model, the present invention proposes a kind of prescribing a time limit certainly
Adapt to visual technological frame, selective analysiss wherein have a strong impact on the data loading drawing frame per second and the phase drawing two stages
Pass factor, and set up a kind of time Estimate model of quantification, according to the hardware condition data process content of system, to each
In frame draw scene content required for time carry out Accurate Prediction, for Automatic adjusument data load and drawing process provide according to
According to.Propose the visual concept of model, and itself and the object importance pre-setting are calculated the factor and be used in combination, to realize
The details of important object is kept as far as possible in the case of the limited time；Propose self adaptation lod (levels of in limited time
Detail, level of detail) selection algorithm, the drafting time Estimate according to object and importance result of calculation, for the choosing of each model
Select suitable lod level so that total drafting time keeps within the budget.
By the adaptive visualization method in limited time of model, improve the frame rate that three-dimensional scenic browses, and same
Individual viewpoint, scene domain loading performance greatly enhances.For example, ground model, underground utilities can be loaded under current view point simultaneously
Model and underground building thing model, in 3 square kilometres of the upper scheduling of common pc (personal computer, personal computer)
Data, can reach the frame rate of 22fps.
S17, carries out integrated analysis based on multiple underground space data, and described integrated analysis include amount of space point counting
Analysis, geo-logical terrain analysis, pipeline and structures comprehensive analysis and one or more of pipeline and geo-logical terrain comprehensive analysis.
Using the present invention, can achieve two dimension with three-dimensional Modelandstructure of Data integrated, based on spatial database
The management of two dimension and three-dimensional data, the aspect such as directly operate two-dimentional gis to analyze in high-end three dimensional analysis and modeling, three-dimensional environment
Function, can be added arcsde (Spatial Data Engine of arcgis) data in real time or be linked with 2d gis.In two three-dimensional integratedization
Under technical system, the major part of two-dimentional gis inquires about (including attribute query, space querying), analytic function can be in system
Use in three-dimensional environment.
The analysis of described spatial measuring includes that vertical dimension amount is calculated, ground surface accumulated amount is calculated, pipeline segmentation statistical analysiss and oneself
Definition region pipeline statistical analysiss etc..Described geo-logical terrain analysis includes geological stratification layer peeled off analysis and geologic body inner excavation tunnel
Analysis etc., underground space analysis is not only the analysis for underground utilities or geological stratification, but a comprehensive problem,
Such as excavate analysis, not only it is to be understood that needing migrated how many pipelines, simultaneously need to knowing cut out how many earth volumes.There is iing ground
The place of ferrum, simultaneously it will also be appreciated that this excavation can or can not impact to subway tunnel, therefore although being a same excavation
Operation, needs to obtain substantial amounts of Informational support, different pieces of information model is analyzed.Described pipeline and structures comprehensive analysis bag
Include earth's surface and excavate analysis and tunnel excavation analysis etc..Described pipeline and geo-logical terrain comprehensive analysis include excavated-in t4 analysis etc..
S18, by way of light-maps, billboarding, cartoon grain and translucentization, key area is fabricated to
Fine scene, realizes the three-dimensional range in scene in the way of incarnation.
The present invention can accurately show earth's surface building, Municipal Component, underground utilities, and other equipment facility, passes through
Light-maps, make scene have static effect of shadow very true to nature, by billbord (billboarding), cartoon grain and
The technology such as translucent, it is possible to achieve multiple special type such as lamellar tree, fountain, fireworks, water ripples, billboard, glass effects and hollow out,
Strengthen sense of reality.Key area, building and programme etc. can be fabricated to fine scene, independent control.For line of vector dough-making powder,
The present invention provides both of which, including vector drawing pattern and real-time Rasterization pattern, supports translucent, gradual change, automatically patch ground
With color setting etc., be simultaneous for vector, can carry out marking with pasting.True man walking, run and jumping in the scene can be simulated, realize
Three-dimensional community based on true geographical environment.Meanwhile, also support that the multi-motion objects such as simulated automotive, aircraft and steamer exist
Roaming on the spot in scene.
Referring to Fig. 3, it is the processing system in the above and below ground three-dimensional integratedization space that the present invention provides.The present embodiment and Fig. 1
The ultimate principle of shown embodiment of the method is consistent, and the correlation that part can be found in embodiment illustrated in fig. 1 is not described in detail in detail in the present embodiment
Description.
The processing system in described above and below ground three-dimensional integratedization space includes:
Underground space MBM 31, for the data according to two-dimentional underground space facility, stretches to X-Y scheme
And moulding, automatically build the threedimensional model of underground space facility；
Integrated moulding module 32, for the landform of aboveground space facility as reference, by the three-dimensional mould of aboveground space facility
Type carries out asking friendship cutting with the top interface of the threedimensional model of underground space facility, realizes aboveground space facility and the underground space
The Seamless integration- modeling of facility, obtains above and below ground three-dimensional integratedization model；
Scene transition module 33, for setting up the three dimensions plane of reference of multiple levels, judges to regard by ray diagnostic method
Put the spatial relation with the described three dimensions plane of reference, automatically switch different spatial scenes and viewpoint, and smooth viewpoint
The process of switching, realizes seamlessly transitting of above and below ground three-dimensional scenic and browses.
Preferably, described above and below ground three-dimensional integratedization model adopts the data tissue of tree-shaped data structure and layering,
Shown using loosely-coupled mode between different types of model.
Referring to Fig. 4, it is another embodiment of the processing system in above and below ground three-dimensional integratedization space that the present invention provides
Structural representation.The ultimate principle of the present embodiment is consistent with embodiment illustrated in fig. 2, and the present embodiment China does not describe part in detail and can join
Associated description in embodiment as shown in Figure 2.
The present embodiment further includes on the basis of embodiment illustrated in fig. 3:
Draw time prediction module 34, for according to hardware condition data process content, needing in each frame picture
The drafting time of each model drawn is predicted；
Importance computing module 35, the importance of the visuality for combination model and model calculates the factor, to picture
In the importance of each model calculated；
Level of detail chooses module 36, for the drafting time prediction result according to model and importance result of calculation,
Select suitable level of detail for each model, so that total drafting time of each frame picture is without departing from default threshold value.
Further, described system also includes:
Integrated analysis module 37, for carrying out integrated analysis, described integration point based on multiple underground space data
Analysis includes spatial measuring analysis, geo-logical terrain analysis, pipeline and structures comprehensive analysis and pipeline and geo-logical terrain total score
One or more of analysis.
Simulation browsing module 38, for by way of light-maps, billboarding, cartoon grain and translucentization,
Key area is fabricated to fine scene, realizes the three-dimensional range in scene in the way of incarnation.
In sum, integrated use virtual reality of the present invention, three-dimensional visualization and spatial analysis, gis, data base, three-dimensional
The advanced information technology such as laser scanning, for different space establishment types, using different modeling methods, is simultaneously based on tree
The data structure of shape, the data tissue of layering, the data exhibiting such as standardized xml form and Storage Techniques are it is achieved that ground
City threedimensional model (building, road and greenery patches etc.), the topography and geomorphology (dem+dom) of earth's surface, the space facility (buried pipe of underground
Line, geo-logical terrain, subway, apm and other underground installation) integrated modelling, not only there is good three-dimensional visualization effect
Really, and there is powerful three-dimensional spatial analysis and decision support function.It is not only the planning in above and below ground space in region, set
Meter, construction and operation maintenance management provide accurately full and accurate spatial information, and provide for the rational exploitation and utilization of the underground space
One visual Spatial Decision Platform.
It should be noted that, system embodiment described above is only schematically, wherein said as separating component
The unit illustrating can be or may not be physically separate, as the part that unit shows can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to actual
Need to select the purpose to realize this embodiment scheme for some or all of module therein.In addition, the device that the present invention provides
In embodiment accompanying drawing, the annexation between module represents there is communication connection between them, specifically can be implemented as one or
A plurality of communication bus or holding wire.Those of ordinary skill in the art are not in the case of paying creative work, you can to understand
And implement.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can borrow
Software is helped to add the mode of necessary common hardware to realize naturally it is also possible to include special IC, specially by specialized hardware
To be realized with cpu, private memory, special components and parts etc..Generally, all functions of being completed by computer program can
Easily realized with corresponding hardware, and, the particular hardware structure for realizing same function can also be multiple many
Sample, such as analog circuit, digital circuit or special circuit etc..But, more for the purpose of the present invention in the case of software program real
It is now more preferably embodiment.Based on such understanding, technical scheme is substantially made to prior art in other words
That contributes partly can be embodied in the form of software product, and this computer software product is stored in the storage medium that can read
In, as the floppy disk of computer, u disk, portable hard drive, read only memory (rom, read-only memory), random access memory
Device (ram, random access memory), magnetic disc or CD etc., including some instructions with so that a computer sets
Standby (can be personal computer, server, or network equipment etc.) executes the method described in each embodiment of the present invention.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by described scope of the claims.
Claims (10)
1. a kind of processing method in above and below ground three-dimensional integratedization space is it is characterised in that include:
According to the data of two-dimentional underground space facility, X-Y scheme is stretched and moulding, automatically built underground space facility
Threedimensional model；
With the landform of aboveground space facility as reference, by the three-dimensional mould of the threedimensional model of aboveground space facility and underground space facility
The top interface of type carries out asking friendship cutting, realizes the Seamless integration- modeling of aboveground space facility and underground space facility, obtains
Above and below ground three-dimensional integratedization model；
Set up the three dimensions plane of reference of multiple levels, viewpoint and the described three dimensions plane of reference are judged by ray diagnostic method
Spatial relation, automatically switch different spatial scenes and viewpoint, and the process of smooth viewpoint switch, realizes above and below ground three
Seamlessly transitting of scene of dimension browses.
2. above and below ground as claimed in claim 1 three-dimensional integratedization space processing method it is characterised in that methods described also
Including:
According to hardware condition data process content, the drafting time needing each model drawn in each frame picture is carried out
Prediction；
The importance of the visuality of combination model and model calculates the factor, and the importance of each model in picture is counted
Calculate；
Drafting time prediction result according to model and importance result of calculation, select suitable levels of detail for each model
Secondary, so that total drafting time of each frame picture is without departing from default threshold value.
3. above and below ground as claimed in claim 1 three-dimensional integratedization space processing method it is characterised in that methods described also
Including:
Carry out integrated analysis based on multiple underground space data, described integrated analysis include spatial measuring analysis, quality
Layer analysis, pipeline and structures comprehensive analysis and one or more of pipeline and geo-logical terrain comprehensive analysis.
4. above and below ground as claimed in claim 1 three-dimensional integratedization space processing method it is characterised in that methods described also
Including:
By way of light-maps, billboarding, cartoon grain and translucentization, key area is fabricated to fine field
Scape, realizes the three-dimensional range in scene in the way of incarnation.
5. the above and below ground three-dimensional integratedization space as described in any one of Claims 1 to 4 processing method it is characterised in that
Described above and below ground three-dimensional integratedization model adopts the data tissue of tree-shaped data structure and layering, between different types of model
Shown using loosely-coupled mode.
6. a kind of processing system in above and below ground three-dimensional integratedization space is it is characterised in that include:
Underground space MBM, for the data according to two-dimentional underground space facility, is stretched to X-Y scheme and moulding,
Automatically build the threedimensional model of underground space facility；
Integrated moulding module, for the landform of aboveground space facility as reference, by the threedimensional model of aboveground space facility with ground
The top interface of the threedimensional model of lower space facility carries out asking friendship cutting, realizes aboveground space facility and underground space facility
Seamless integration- models, and obtains above and below ground three-dimensional integratedization model；
Scene transition module, for setting up the three dimensions plane of reference of multiple levels, judges viewpoint and institute by ray diagnostic method
State the spatial relation of the three dimensions plane of reference, automatically switch different spatial scenes and viewpoint, and smooth viewpoint switch
Process, realizes seamlessly transitting of above and below ground three-dimensional scenic and browses.
7. the processing system wanting above and below ground three-dimensional integratedization space as described in 6 as right is it is characterised in that described system is also wrapped
Include:
Draw time prediction module, for according to hardware condition data process content, to need in each frame picture to draw
The drafting time of each model is predicted；
Importance computing module, the importance of the visuality for combination model and model calculates the factor, in picture each
The importance of model is calculated；
Level of detail chooses module, for the drafting time prediction result according to model and importance result of calculation, for each
Model selects suitable level of detail, so that total drafting time of each frame picture is without departing from default threshold value.
8. the processing system wanting above and below ground three-dimensional integratedization space as described in 6 as right is it is characterised in that described system is also wrapped
Include:
Integrated analysis module, for carrying out integrated analysis based on multiple underground space data, described integrated analysis include
In spatial measuring analysis, geo-logical terrain analysis, pipeline and structures comprehensive analysis and pipeline and geo-logical terrain comprehensive analysis
One or more.
9. the processing system wanting above and below ground three-dimensional integratedization space as described in 6 as right is it is characterised in that described system is also wrapped
Include:
Simulation browsing module, for by way of light-maps, billboarding, cartoon grain and translucentization, by emphasis
Region is fabricated to fine scene, realizes the three-dimensional range in scene in the way of incarnation.
10. the processing system in the above and below ground three-dimensional integratedization space as described in right wants 6～9 any one is it is characterised in that institute
State the data tissue that above and below ground three-dimensional integratedization model adopts tree-shaped data structure and layering, adopt between different types of model
Shown with loosely-coupled mode.
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| CN111368018A (en) * | 2020-03-10 | 2020-07-03 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Underground space resource management system |
| CN111476896A (en) * | 2020-03-24 | 2020-07-31 | 清华大学 | Panoramic three-dimensional modeling method for urban overground and underground buildings and personnel |
| CN113379913A (en) * | 2021-07-02 | 2021-09-10 | 中煤航测遥感集团有限公司 | Underground space generation method and device and computer equipment |
| CN114648545A (en) * | 2022-03-23 | 2022-06-21 | 航天科工通信技术研究院有限责任公司 | Three-dimensional structure analysis method and device |
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| CN109472866A (en) * | 2018-10-17 | 2019-03-15 | 四川省地质工程勘察院 | A kind of modeling method of big geology Building Information Model |
| CN111159451A (en) * | 2019-12-18 | 2020-05-15 | 广州地理研究所 | Power line point cloud dynamic monomer method based on spatial database |
| CN111368018A (en) * | 2020-03-10 | 2020-07-03 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Underground space resource management system |
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| CN111476896B (en) * | 2020-03-24 | 2023-03-21 | 清华大学 | Panoramic three-dimensional modeling method for urban overground and underground buildings and personnel |
| CN113379913A (en) * | 2021-07-02 | 2021-09-10 | 中煤航测遥感集团有限公司 | Underground space generation method and device and computer equipment |
| CN113379913B (en) * | 2021-07-02 | 2023-09-26 | 中煤航测遥感集团有限公司 | Underground space generation method and device and computer equipment |
| CN114648545A (en) * | 2022-03-23 | 2022-06-21 | 航天科工通信技术研究院有限责任公司 | Three-dimensional structure analysis method and device |
| CN114648545B (en) * | 2022-03-23 | 2024-10-01 | 航天科工通信技术研究院有限责任公司 | Three-dimensional structure analysis method and device |
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