CN107229426A - The compression of BIM model datas, restoring method and device - Google Patents
The compression of BIM model datas, restoring method and device Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
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- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
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Abstract
The invention discloses a kind of compression of BIM model datas, restoring method and device, belong to BIM modelling techniques field.Methods described includes：Components all in BIM model datas are obtained, the component is assigned and numbered, wherein, identical component is assigned and is identically numbered；According to the numbering, the corresponding geological information of compression storage forms component numbering dictionary, wherein, to being identically numbered a corresponding geological information of compression storage；All corresponding non-geometry informations of numbering of compression storage and vector information, form component numbered list.The present invention is assigned to the component in BIM model datas and numbered, identical components assign same numbering, when corresponding geological information is numbered in storage, same numbering only stores a corresponding geological information, the corresponding non-geometry information formation component numbering dictionary of all numberings is stored, the geological information for repeating to store identical numbering is avoided, so that substantial amounts of reduce compression data storage amount.
Description
Technical field
The present invention relates to BIM modelling techniques field, more particularly to a kind of compression of BIM model datas, restoring method and device.
Background technology
BIM models are BIM (Building Information Modeling) abbreviations, are a kind of buildings
Architecture information, can be digitized by Life cycle information system management technology, and be used as base using this digital information model
Plinth, the simulation for carrying out each stage is built, with visualization, harmony, simulation, optimization property and can to go out figure etc. five big substantially
Feature.The final form of expression of BIM models is visual various dimensions, multi-functional, multiduty computer graphics model.So
Model is showed on the display device in the form of various dimensions, multi-functional, multiduty normatron figure.Current
BIM model data files, save complete geological information and non-geometry information, data volume is than larger, using technologies such as ZIP
Data volume can not be effectively compressed, data volume is more huge so that large bandwidth is taken in transmitting procedure, it is not good in network speed by it
In the case of, have a strong impact on transmission rate.
The content of the invention
It is a primary object of the present invention to propose a kind of BIM model datas compression, restoring method and device, it is intended to solve existing
Have in technology that BIM model datas amount is larger so that large bandwidth is taken in transmitting procedure, the problem of being unfavorable for data transfer.
In a first aspect, the present invention proposes a kind of BIM model datas compression method, methods described includes：
Components all in BIM model datas are obtained, the component is assigned and numbered, wherein, identical component assigns phase
Same numbering；
According to the numbering, the corresponding geological information of compression storage forms component numbering dictionary, wherein, identical is compiled
Number a corresponding geological information of compression storage；
All corresponding non-geometry informations of numbering of compression storage and vector information, form component numbered list.
Second aspect, the present invention proposes a kind of BIM model datas compression set, and described device includes：
Component numbering module, for obtaining components all in BIM model datas, assigns to the component and numbering, wherein,
Identical component is assigned and is identically numbered；
Component numbering dictionary formation module, for according to the numbering, the corresponding geological information of compression storage to form component
Numbering dictionary, wherein, to being identically numbered a corresponding geological information of compression storage；And
Component numbered list formation module, for compressing all corresponding non-geometry informations of numbering of storage and vector letter
Breath, forms component numbered list.
The third aspect, the present invention proposes a kind of BIM model datas restoring method, and methods described includes：
Component numbered list and component numbering dictionary are decompressed respectively；
According to the component numbered list, the corresponding geological information of numbering, the component are read in component numbering dictionary
Numbered list includes：The corresponding non-geometry information of all numberings and vector information, the component numbering dictionary include：It is described to compile
Number corresponding geological information；
According to the corresponding geological information of the numbering and non-geometry information, the geometry and non-geometric letter of component are generated
Breath, and according to the spatial positional information of vector information reduction component.
Fourth aspect, the present invention proposes a kind of BIM model datas reduction apparatus, and described device includes：
Decompression module, for decompressing component numbered list and component numbering dictionary respectively；
Geological information read module, for according to the component numbered list, numbering pair to be read in component numbering dictionary
The geological information answered, the component numbered list includes：The corresponding non-geometry information of all numberings and vector information, the structure
Part numbering dictionary includes：It is described to number corresponding geological information；And
Component generation module, for according to the corresponding geological information of the numbering and non-geometry information, generating the several of component
What shape and non-geometry information, and according to the spatial positional information of vector information reduction component.
On the one hand, a kind of BIM model datas compression method and device proposed by the present invention, to the structure in BIM model datas
Part assigns numbering, and identical components assign same numbering, and when corresponding geological information is numbered in storage, same numbering only stores portion
Corresponding geological information, the corresponding non-geometry information formation component numbering dictionary of all numberings is stored, it is to avoid repetition is deposited
The geological information of identical numbering is stored up, so that substantial amounts of reduce compression data storage amount.
On the other hand, a kind of BIM model datas restoring method and device proposed by the present invention, decompression component numbered list are obtained
The numbering and corresponding non-geometry information and vector information of component are taken, and by component numbered list reading element numbering dictionary
Geological information, so as to generate the geometry and non-geometry information of component, and reduce the spatial positional information of component, without
The geological information of identical numbering is stored one by one, is that corresponding geological information can be read using component numbered list, it is to avoid repeated
Geological information takes transmitted data amount, and data space.
Brief description of the drawings
Fig. 1 is a kind of method flow diagram of BIM model datas compression method provided in an embodiment of the present invention；
Fig. 2 is the side of compression storage geological information in a kind of BIM model datas compression method provided in an embodiment of the present invention
Method flow chart；
Fig. 3 is a kind of schematic diagram of BIM model datas compression set provided in an embodiment of the present invention；
Fig. 4 is a kind of method flow diagram of BIM model datas restoring method provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of BIM model datas reduction apparatus provided in an embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in figure 1, the embodiment of the present invention proposes a kind of BIM model datas compression method, including：
Step 101, components all in BIM model datas are obtained, component is assigned and numbered, wherein, identical component is assigned
Give and being identically numbered.
Step 102, according to numbering, the corresponding geological information of compression storage forms component numbering dictionary, wherein, to identical
A corresponding geological information of numbering compression storage.
Step 103, all corresponding non-geometry informations of numbering of compression storage and vector information, form component numbering row
Table.
In a step 101, BIM model datas are obtained, the BIM model datas are original BIM model datas, including are owned
Component, and each component geological information, non-geometry information, and spatial positional information, wherein, the geological information bag of component
Include geometry and define information and geometry information, it is the definition to geometry, such as one that the geometry, which defines information,
The component of individual triangle, its geometry define information be three sides of a triangle length information, and three summits folder
Angle number information, and geometry information is geometry of the component in BIM model datas.Getting BIM model datas
Afterwards, component all in BIM model datas is assigned and numbered, rule of its imparting numbering assigns identical for identical component and compiled
Number, where like component is geometry information identical component, for example, triangular all in BIM model datas
Part all assigns numbering 1, and the triangular member that these numberings are 1 is only that geological information is identical, but non-geometry information can not
It is identical, numbered by assigning, identical component is entered into row set.
In a step 102, it will be numbered in previous step by being assigned to component, identical component entered into row set, due to
Identical component, which is imparted, to be identically numbered, and corresponding geological information is identical, therefore, according to numbering, compression storage correspondence
Geological information, formed component numbering dictionary, the component numbering dictionary be specially will number with corresponding geological information formed reflects
The component numbering dictionary of relation is penetrated, corresponding geological information can be found by numbering, wherein, deposited to being identically numbered compression
A corresponding geological information is stored up, without carrying out repeating storage to the corresponding geological information of identical numbering, is reduced multiple identical
Component geological information carry out repeat storage operation, and reduce largely repeat data.
In step 103, component numbering dictionary is simply individually stored the geological information of component, because identical structure
Its geological information of part is identical, still, and its non-geometry information and vector information can be differed, therefore, for the non-geometric of component
Information and vector information need to store one by one, and to ensure the accuracy and integrality of BIM model datas, compression storage is all
Corresponding non-geometry information and vector information are numbered, the numbering of component is reflected with corresponding non-geometry information and vector information formation
Relation is penetrated, so as to form component numbered list.
The component in BIM model datas is assigned in embodiments of the present invention and being numbered, identical components assign same numbering,
When corresponding geological information is numbered in storage, same numbering only stores a corresponding geological information, and all numberings are corresponding non-
Geological information formation component numbering dictionary is stored, it is to avoid repetition stores the geological information of identical numbering, so that substantial amounts of subtract
Compression data storage amount is lacked.
Further, in BIM model datas, the spatial positional information of component is obtained, spatial positional information is converted to
Vector information.
Specifically, in BIM model datas, the corresponding spatial positional information of each component contains component in BIM models
Residing locus in data,, can be by space bit in order to further reduce data volume when compressing BIM model datas
Confidence breath is converted to vector information and expressed.
As shown in Fig. 2 the embodiment of the present invention proposes compression storage geological information in a kind of BIM model datas compression method
Method, including：
Step 201, the data volume of geological information is obtained.
Step 202, when data volume is less than preset data amount, only compression storage geometry defines information.
Step 203, when data volume is higher than preset data amount, while compressing storage geometry defines information and geometric form
Shape information.
In embodiments of the present invention, in BIM model datas, the geological information of component defines information and several including geometry
What shape defines information, and it is the definition to geometry that the geometry, which defines information, the component of such as one triangle, and its is several
What shape defines the length information that information is three sides of a triangle, and three summits angle number of degrees information, and geometric form
Shape information is geometry of the component in BIM model datas, for simple component, because its geometry is more simple
Single, the geometry of component can be just reduced directly out by defining information by geometry, and for complicated component, be led to
Cross geometry define information be merely able in primary member the length of side, number and angle etc. define information, but can not can be from upper
State geometry and define information architecture and go out geometry, therefore the geometry information of complicated component is indispensable, in order to enter
The reduction data volume on one step ground, the data volume for geological information is less than the component of preset data amount, it is believed that it is structure
Simple component, the data volume for geological information is higher than the component of preset data amount, it is believed that it is baroque structure
Part, only compression storage geometry can define information for component simple in construction, be pressed simultaneously for baroque component
Contracting storage geometry define information and geometry information, with further reduce memory data output while, effectively
Ensure the integrality and accuracy of data.
As shown in figure 3, the embodiment of the present invention proposes a kind of BIM model datas compression set, including：
Component numbering module 31, for obtaining components all in BIM model datas, assigns to component and numbering, wherein, phase
Same component is assigned and is identically numbered；
Component numbering dictionary formation module 32, for according to numbering, the corresponding geological information of compression storage to form component and compiled
Number dictionary, wherein, to being identically numbered a corresponding geological information of compression storage；And
Component numbered list formation module 33, for compressing all corresponding non-geometry informations of numbering of storage and vector letter
Breath, forms component numbered list.
Wherein, component numbering module 31, obtains BIM model datas, and the BIM model datas are original BIM model datas,
Including all components, and each component geological information, non-geometry information, and spatial positional information, wherein, component it is several
What information defines information and geometry information including geometry, and it is that geometry is determined that the geometry, which defines information,
Justice, the component of such as one triangle, its geometry defines the length information that information is three sides of a triangle, and three
The angle number of degrees information on summit, and geometry information is geometry of the component in BIM model datas.Getting BIM
After model data, component all in BIM model datas is assigned and numbered, it assigns the rule of numbering and assigned for identical component
It is identically numbered, where like component is geometry information identical component, for example, all in BIM model datas
Triangular member all assigns numbering 1, and the triangular member that these numberings are 1 is only that geological information is identical, but non-geometric is believed
Breath can be differed, and numbered by assigning, identical component is entered into row set.
Component numbering dictionary formation module 32, will be numbered by being assigned to component in previous step, identical component is entered
Row set, is identically numbered because identical component is imparted, and corresponding geological information is identical, therefore, according to numbering, pressure
The corresponding geological information of contracting storage, forms component numbering dictionary, the component numbering dictionary is specially will numbering and corresponding geometry
The component numbering dictionary of information formation mapping relations, can find corresponding geological information by numbering, wherein, to identical
A corresponding geological information of numbering compression storage, without carrying out repeating storage to the corresponding geological information of identical numbering, is reduced
The geological information of multiple identical components repeat the operation of storage, and reduces the data largely repeated.
Component numbered list formation module 33, component numbering dictionary is simply individually stored the geological information of component,
Because its geological information of identical component is identical, still, its non-geometry information and vector information can be differed, therefore, for
The non-geometry information and vector information of component need to store one by one, to ensure the accuracy and integrality of BIM model datas, pressure
Contracting all corresponding non-geometry information of numbering of storage and vector information, by the numbering of component with corresponding non-geometry information and to
Information formation mapping relations are measured, so as to form component numbered list.
The component in BIM model datas is assigned in embodiments of the present invention and being numbered, identical components assign same numbering,
When corresponding geological information is numbered in storage, same numbering only stores a corresponding geological information, and all numberings are corresponding non-
Geological information formation component numbering dictionary is stored, it is to avoid repetition stores the geological information of identical numbering, so that substantial amounts of subtract
Compression data storage amount is lacked.
Further, component numbered list formation module 33 includes：
Vector information modular converter, in BIM model datas, the spatial positional information of component being obtained, by space bit
Confidence breath is converted to vector information.
Specifically, in BIM model datas, the corresponding spatial positional information of each component contains component in BIM models
Residing locus in data,, can be by space bit in order to further reduce data volume when compressing BIM model datas
Confidence breath is converted to vector information and expressed.
As shown in figure 4, a kind of BIM model datas restoring method provided in an embodiment of the present invention, including：
Step 401, component numbered list and component numbering dictionary are decompressed respectively；
Step 402, according to component numbered list, the corresponding geological information of numbering, component are read in component numbering dictionary
Numbered list includes：The corresponding non-geometry information of all numberings and vector information, component numbering dictionary include：Numbering is corresponding
Geological information；
Step 403, according to corresponding geological information and non-geometry information is numbered, the geometry and non-geometric of component are generated
Information, and according to the spatial positional information of vector information reduction component.
In step 401, component numbered list and component numbering dictionary are decompressed respectively, because identical component imparts phase
Same numbering, and corresponding geological information is identical, and component numbering dictionary is specially to form numbering with corresponding geological information
The component numbering dictionary of mapping relations, can find corresponding geological information by numbering, wherein, to being identically numbered compression
Store a corresponding geological information；Component numbered list contains the non-geometry information and vector information of each component, because
Its geological information of identical component is identical, still, and its non-geometry information and vector information can be differed, therefore, for component
Non-geometry information and vector information need to store one by one.
In step 402, according to component numbered list, the corresponding geological information of numbering is read in component numbering dictionary,
Because component numbered list includes the numbering of all components, therefore, read using component numbered list in component numbering dictionary
The corresponding geological information of numbering is taken to ensure that each component can get corresponding geological information, component numbered list bag
Include：The corresponding non-geometry information of all numberings and vector information, component numbering dictionary include：Number corresponding geological information.
Further, according to numbering, component numbered list is ranked up；
For being identically numbered, corresponding geological information is read in circulation in component numbering dictionary.
Specifically, due in component numbered list, including much it is identically numbered, by way of sequence, can causes
It is identically numbered into row set, contributes in component numbering dictionary circulation to read corresponding geological information, it is to avoid each need
The speed of geological information is read in the process to be searched according to numbering, increase, so as to improve the reduction effect of BIM model datas
Rate.
In step 403, after reading corresponding geological information in component numbering dictionary, and in component numbered list
Non-geometry information, generate component geometry and non-geometry information, and according to vector information reduce component locus
Information.
Further, when geological information includes：When geometry defines information, information is defined according to geometry, generated
The geometry of component；
When geological information includes：When geometry defines information and geometry information, information is defined according to geometry
And geometry information, generate the geometry of component.
In embodiments of the present invention, in BIM model datas, the geological information of component defines information and several including geometry
What shape defines information, and it is the definition to geometry that the geometry, which defines information, the component of such as one triangle, and its is several
What shape defines the length information that information is three sides of a triangle, and three summits angle number of degrees information, and geometric form
Shape information is geometry of the component in BIM model datas, for simple component, because its geometry is more simple
Single, the geometry of component can be just reduced directly out by defining information by geometry, and for complicated component, be led to
Cross geometry define information be merely able in primary member the length of side, number and angle etc. define information, but can not can be from upper
State geometry and define information architecture and go out geometry, therefore the geometry information of complicated component is indispensable, for knot
The simple component of structure, its geological information only includes geometry and defines information, and structure can be generated by defining information according to geometry
The geometry of part, for complicated component, its geological information includes：Geometry defines information and geometry letter
Breath according to geometry, it is necessary to define information and geometry information, the geometry of generation component.
In embodiments of the present invention, decompression component numbered list obtain component numbering and corresponding non-geometry information and to
Information is measured, and by the geological information in component numbered list reading element numbering dictionary, so as to generate the geometry of component
And non-geometry information, and the spatial positional information of component is reduced, the geological information without storing identical numbering one by one utilizes structure
Part numbered list is that corresponding geological information can be read, it is to avoid the geological information repeated takes transmitted data amount, and data are deposited
Store up space.
As shown in figure 5, a kind of BIM model datas reduction apparatus provided in an embodiment of the present invention, including：
Decompression module 51, for decompressing component numbered list and component numbering dictionary respectively；
Geological information read module 52, for according to component numbered list, numbering correspondence to be read in component numbering dictionary
Geological information, component numbered list includes：The corresponding non-geometry information of all numberings and vector information, component numbering dictionary
Including：Number corresponding geological information；And
Component generation module 53, for according to corresponding geological information and non-geometry information is numbered, generating the geometry of component
Shape and non-geometry information, and according to the spatial positional information of vector information reduction component.
Decompression module 51, decompresses component numbered list and component numbering dictionary, because identical component imparts phase respectively
Same numbering, and corresponding geological information is identical, and component numbering dictionary is specially to form numbering with corresponding geological information
The component numbering dictionary of mapping relations, can find corresponding geological information by numbering, wherein, to being identically numbered compression
Store a corresponding geological information；Component numbered list contains the non-geometry information and vector information of each component, because
Its geological information of identical component is identical, still, and its non-geometry information and vector information can be differed, therefore, for component
Non-geometry information and vector information need to store one by one.
Geological information read module 52, according to component numbered list, reads numbering corresponding several in component numbering dictionary
What information, because component numbered list includes the numbering of all components, therefore, using component numbered list in component numbering word
The corresponding geological information of numbering is read in allusion quotation can ensure that each component can get corresponding geological information, component numbering
List includes：The corresponding non-geometry information of all numberings and vector information, component numbering dictionary include：Number corresponding geometry
Information.
Further, geological information read module 52 includes：
List ordering module 521, for according to numbering, being ranked up to component numbered list；And
Read module 522 is circulated, for for being identically numbered, corresponding geometry to be read in circulation in component numbering dictionary
Information.
Specifically, due in component numbered list, including much it is identically numbered, by way of sequence, can causes
It is identically numbered into row set, contributes in component numbering dictionary circulation to read corresponding geological information, it is to avoid each need
The speed of geological information is read in the process to be searched according to numbering, increase, so as to improve the reduction effect of BIM model datas
Rate.
Component generation module 53, after reading corresponding geological information in component numbering dictionary, and component numbering row
Non-geometry information in table, generates the geometry and non-geometry information of component, and according to the space of vector information reduction component
Positional information.
In embodiments of the present invention, decompression component numbered list obtain component numbering and corresponding non-geometry information and to
Information is measured, and by the geological information in component numbered list reading element numbering dictionary, so as to generate the geometry of component
And non-geometry information, and the spatial positional information of component is reduced, the geological information without storing identical numbering one by one utilizes structure
Part numbered list is that corresponding geological information can be read, it is to avoid the geological information repeated takes transmitted data amount, and data are deposited
Store up space.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or device including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in process, method, article or the device of key element.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are to cause a station terminal equipment (can be mobile phone, computer, clothes
It is engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of BIM model datas compression method, it is characterised in that methods described includes step：
Components all in BIM model datas are obtained, the component is assigned and numbered, wherein, identical component assigns identical
Numbering；
According to the numbering, the corresponding geological information of compression storage forms component numbering dictionary, wherein, to being identically numbered pressure
A corresponding geological information of contracting storage；
All corresponding non-geometry informations of numbering of compression storage and vector information, form component numbered list.
2. BIM model datas compression method according to claim 1, it is characterised in that described according to the numbering, compression
Corresponding geological information is stored, component numbering dictionary is formed, wherein, believe being identically numbered a corresponding geometry of compression storage
The step of breath, including：
Obtain the data volume of the geological information；
When the data volume is less than preset data amount, only compression storage geometry defines information；
When the data volume is higher than preset data amount, while compressing storage geometry defines information and geometry letter
Breath.
3. BIM model datas compression method according to claim 1, it is characterised in that the compression stores all volumes
Number corresponding non-geometry information and vector information, the step of forming component numbered list, including：
In BIM model datas, the spatial positional information of the component is obtained, the spatial positional information is converted into vectorial letter
Breath.
4. a kind of BIM model datas compression set, it is characterised in that described device includes：
Component numbering module, for obtaining components all in BIM model datas, assigns to the component and numbering, wherein, it is identical
Component assign be identically numbered；
Component numbering dictionary formation module, for according to the numbering, the corresponding geological information of compression storage to form component numbering
Dictionary, wherein, to being identically numbered a corresponding geological information of compression storage；And
Component numbered list formation module, for compressing all corresponding non-geometry informations of numbering of storage and vector information, shape
Into component numbered list.
5. BIM model datas compression set according to claim 4, it is characterised in that the component numbered list is formed
Module includes：
Vector information modular converter, in BIM model datas, the spatial positional information of the component being obtained, by the sky
Between positional information be converted to vector information.
6. a kind of BIM model datas restoring method, it is characterised in that methods described includes step：
Component numbered list and component numbering dictionary are decompressed respectively；
According to the component numbered list, the corresponding geological information of numbering, the component numbering are read in component numbering dictionary
List includes：The corresponding non-geometry information of all numberings and vector information, the component numbering dictionary include：The numbering pair
The geological information answered；
According to the corresponding geological information of the numbering and non-geometry information, the geometry and non-geometry information of component are generated, and
The spatial positional information of component is reduced according to the vector information.
7. BIM model datas restoring method according to claim 6, it is characterised in that methods described also includes：
According to the numbering, the component numbered list is ranked up；
It is identically numbered for described, corresponding geological information is read in circulation in the component numbering dictionary.
8. BIM model datas restoring method according to claim 6, it is characterised in that methods described also includes：
When the geological information includes：When geometry defines information, information is defined according to the geometry, the structure is generated
The geometry of part；
When the geological information includes：When geometry defines information and geometry information, defined according to the geometry
Information and geometry information, generate the geometry of the component.
9. a kind of BIM model datas reduction apparatus, it is characterised in that described device includes：
Decompression module, for decompressing component numbered list and component numbering dictionary respectively；
Geological information read module, for according to the component numbered list, numbering being read in component numbering dictionary corresponding
Geological information, the component numbered list includes：The corresponding non-geometry information of all numberings and vector information, the component are compiled
Number dictionary includes：It is described to number corresponding geological information；And
Component generation module, for according to the corresponding geological information of the numbering and non-geometry information, generating the geometric form of component
Shape and non-geometry information, and according to the spatial positional information of vector information reduction component.
10. BIM model datas reduction apparatus according to claim 9, it is characterised in that the geological information read module
Including：
List ordering module, for according to the numbering, being ranked up to the component numbered list；And
Read module is circulated, for being identically numbered for described, circulation is read corresponding several in the component numbering dictionary
What information.
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