CN109345628A - A kind of model light-weight technologg method, apparatus and electronic equipment - Google Patents
A kind of model light-weight technologg method, apparatus and electronic equipment Download PDFInfo
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Abstract
The present invention relates to a kind of model light-weight technologg method, apparatus and electronic equipments, belong to Lightweight Technology field.The model light-weight technologg method, comprising: delete the non-critical information unrelated with model structure from acquired parametrization threedimensional model；The parametrization threedimensional model for deleting the non-critical information is subjected to the processing of geometric parameter polygonization, obtains grid model；Coding compression is carried out to the grid model based on lossless compression-encoding algorithm, obtains light weighed model.Model file amount of capacity can be greatly lowered under the premise of retaining original design intent in the application, improve the loading velocity and graphical rendering efficiency of threedimensional model.
Description
Technical field
The invention belongs to Lightweight Technology fields, and in particular to a kind of model light-weight technologg method, apparatus and electronics are set
It is standby.
Background technique
The threedimensional model of substation's Complex Power equipment mostly uses the modeling tools software such as Pro/E or CATIA to carry out at present
Digitization modeling design, the substation's Complex Power equipment 3D model data file capacity saved using such 3D modeling software
It is generally large, the memory space of several GB is generally taken up, with the increase of model complexity, data file capacity is even more into multiplication
It is long, very big inconvenience is brought to the duplication downloading of model, opening browsing, graphical rendering.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide a kind of model light-weight technologg method, apparatus and electronic equipments, to have
Effect ground improves the above problem.
The embodiment of the present invention is achieved in that
In a first aspect, the embodiment of the invention provides a kind of model light-weight technologg methods, comprising: from acquired parameter
Change and deletes the non-critical information unrelated with model structure in threedimensional model；The parametrization for deleting the non-critical information is three-dimensional
Model carries out the processing of geometric parameter polygonization, obtains grid model；Based on lossless compression-encoding algorithm to the grid model
Coding compression is carried out, light weighed model is obtained.
In a kind of optional embodiment with reference to first aspect, it is described from acquired parametrization threedimensional model delete with
The unrelated non-critical information of model structure, comprising: extract model file information from acquired parametrization threedimensional model；From
The non-critical information unrelated with model structure is deleted in the model file information.
In a kind of optional embodiment with reference to first aspect, the model file information include: coordinate system define information,
Geometry description information, characteristic parameter information, manufacture information, attribute information and history information；It is described from the model
The non-critical information unrelated with model structure is deleted in the file information, comprising: deletion and model from the model file information
The unrelated characteristic parameter information of structure, manufacture information, attribute information and history information.
In a kind of optional embodiment with reference to first aspect, based on lossless compression-encoding algorithm to the grid model into
Row coding compression, obtains light weighed model, comprising: based on Run- Length Coding, LZW coding, Huffman coding or Arithmetic Coding algorithm
Coding compression is carried out to the grid model, obtains light weighed model.
In a kind of optional embodiment with reference to first aspect, deletion and model from acquired parametrization threedimensional model
Before the unrelated non-critical information of structure, the method also includes: the parametrization threedimensional model is obtained using modeling tool.
Second aspect, the embodiment of the invention also provides a kind of model light-weight technologg devices, comprising: removing module is used
In the non-critical information unrelated with model structure of the deletion from acquired parametrization threedimensional model；Conversion module, for that will delete
In addition to the parametrization threedimensional model of the non-critical information carries out the processing of geometric parameter polygonization, grid model is obtained；Compression
Module obtains light weighed model for carrying out coding compression to the grid model based on lossless compression-encoding algorithm.
In a kind of optional embodiment in conjunction with second aspect, the removing module is also used to from acquired parametrization
Model file information is extracted in threedimensional model；And it is also used to delete from the model file information unrelated with model structure
Non-critical information.
In a kind of optional embodiment in conjunction with second aspect, the model file information include: coordinate system define information,
Geometry description information, characteristic parameter information, manufacture information, attribute information and history information, the removing module, also
For deleted from the model file information characteristic parameter information unrelated with model structure, manufacture information, attribute information and
History information.
In a kind of optional embodiment in conjunction with second aspect, the compression module is also used to based on Run- Length Coding, LZW
Coding, Huffman coding or Arithmetic Coding algorithm carry out coding compression to the grid model, obtain light weighed model.
The third aspect, the embodiment of the invention also provides a kind of electronic equipment, comprising: memory and processor, it is described to deposit
Reservoir is connected with the processor；The memory is for storing program；The processor is stored in the storage for calling
Program in device, to execute the method that any one possible embodiment in above-mentioned first aspect or first aspect provides
Model light-weight technologg method provided in an embodiment of the present invention, comprising: from acquired parametrization threedimensional model
Delete the non-critical information unrelated with model structure；The parametrization threedimensional model for deleting the non-critical information is subjected to geometry
The processing of parameter polygonization, obtains grid model；Coding compression is carried out to the grid model based on lossless compression-encoding algorithm,
Obtain light weighed model.The application deletes the non-key letter unrelated with model structure under the premise of retaining original design intent
Breath；Then the processing of geometric parameter polygonization is being carried out to the parametrization threedimensional model for deleting non-critical information；Finally to
To grid model carry out coding compression, obtain light weighed model, can be greatly lowered model file amount of capacity, improve three
The loading velocity of dimension module and graphical rendering efficiency.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood by implementing the embodiment of the present invention.The objectives and other advantages of the invention can be by written
Specifically noted structure is achieved and obtained in specification, claims and attached drawing.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose of the invention, feature and advantage will be more clear.In whole
Identical appended drawing reference indicates identical part in attached drawing.Attached drawing, emphasis deliberately are not drawn by actual size equal proportion scaling
It is to show the gist of the present invention.
Fig. 1 shows the structural schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Fig. 2 shows a kind of flow charts of model light-weight technologg method provided in an embodiment of the present invention.
Fig. 3 shows the flow chart of the step S101 in Fig. 2 provided in an embodiment of the present invention.
Fig. 4 shows a kind of module diagram of model light-weight technologg device provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.Furthermore term "and/or" in the application, only a kind of description is closed
Join the incidence relation of object, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A is deposited simultaneously
In A and B, these three situations of individualism B.
First embodiment
As shown in Figure 1, Fig. 1 shows the structural block diagram of a kind of electronic equipment 100 provided in an embodiment of the present invention.The electricity
Sub- equipment 100 includes: model light-weight technologg device 110, memory 120, storage control 130 and processor 140.
The memory 120, storage control 130, each element of processor 140 directly or indirectly electrically connect between each other
It connects, to realize the transmission or interaction of data.For example, these elements can pass through one or more communication bus or signal between each other
Line, which is realized, to be electrically connected.The model light-weight technologg device 110 includes at least one can be with software or firmware (firmware)
Form be stored in the memory 120 or be solidificated in the operating system (operating of the electronic equipment 100
System, OS) in software function module.The processor 140 is used to execute the executable module stored in memory 120,
Such as software function module or computer program that the model light-weight technologg device 110 includes.
Wherein, memory 120 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-
Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory,
EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory,
EEPROM) etc..Wherein, memory 120 is for storing program, and the processor 140 is after receiving and executing instruction, described in execution
Program, method performed by the electronic equipment 100 for the flow definition that aftermentioned any embodiment of the embodiment of the present invention discloses can answer
It is realized in processor 140, or by processor 140.
Processor 140 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor can be
General processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc.；It can also be digital signal processor (DSP), specific integrated circuit (ASIC), field-programmable gate array
Arrange (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented
Or disclosed each method, step and logic diagram in the execution embodiment of the present invention.General processor can be microprocessor
Or the processor is also possible to any conventional processor etc..
Above-mentioned electronic equipment 100 includes, but are not limited to PC (Personal computer, PC), intelligent hand
Machine, tablet computer, mobile internet surfing equipment (Mobile Internet Device, MID), personal digital assistant (Personal
Digital Assistant, PDA) etc. equipment.
Second embodiment
Referring to Fig. 2, being at a kind of model lightweight applied to above-mentioned electronic equipment 100 provided in an embodiment of the present invention
Reason method, the step of including to it below in conjunction with Fig. 2, are illustrated.
Step S101: the non-critical information unrelated with model structure is deleted from acquired parametrization threedimensional model.
Due to the parametrization three-dimensional modeling data file size that is obtained using the modeling tools such as Pro/E or CATIA generally compared with
Greatly, the memory space for generally taking up several GB, with the increase of model complexity, data file capacity is even more to be doubled and redoubled, and is given
The duplication downloading of model opens browsing, graphically renders and bring very big inconvenience.Therefore, from acquired parametrization in the application
Deleting the non-critical information unrelated with model structure in threedimensional model can be substantially under the premise of retaining original design intent
Degree reduces model file amount of capacity, improves the loading velocity and graphical rendering efficiency of threedimensional model.
As an alternative embodiment, being illustrated with step shown in Fig. 3 to this process.
Step S201: model file information is extracted from acquired parametrization threedimensional model.
Model file information is extracted from acquired parametrization threedimensional model, wherein model file information includes several
What information and non-geometry information, wherein non-geometry information includes manufacture information and attribute information etc.；Geological information includes: coordinate
System defines information, geometry description information, characteristic parameter information, history information etc..
Step S202: the non-critical information unrelated with model structure is deleted from the model file information.
After extracting model file information in acquired parametrization threedimensional model, deleted from the model file information
Except the non-critical information unrelated with model structure, that is, delete the feature unrelated with model structure from the model file information
Parameter information, manufacture information, attribute information and history information.
Step S102: the parametrization threedimensional model for deleting the non-critical information is carried out at geometric parameter polygonization
Reason, obtains grid model.
The parametrization threedimensional model that the non-critical information will be deleted carries out the processing of geometric parameter polygonization, i.e., to deleting
In addition to the parametrization threedimensional model after characteristic parameter information, manufacture information, attribute information and history information carries out geometric parameters
Number polygonization processing, obtains grid model.That is parameterized model is replaced with the grid model convenient for rendering, substantially dropped
The number of vertex and polygon quantity of low threedimensional model.
Wherein, it should be noted that parameterized model, which refers to, usually to be described in the three-dimensional model with parametric curve/face
The geometry of object.This mode is visual from power equipment although the geological information of power equipment can be defined accurately
This description precision is excessively high for changing control and being used interchangeably aspect, and the speed for causing model to load and render is greatly reduced.
Wherein, grid model is a kind of non-precision mould of geometry that object is approached using a large amount of polygonal patch
Type expression.The data structure of grid model is simple, is simply described with it to the geometric dimension of object, reduces three
The speed of number of vertex and polygon figurate number in dimension module, load and rendering under this model is superior to parameterized model.
Step S103: coding compression is carried out to the grid model based on lossless compression-encoding algorithm, obtains lightweight mould
Type.
After obtaining grid model, coding compression is carried out to the grid model based on lossless compression-encoding algorithm, thus
Light weighed model is obtained to smaller capacity.
Wherein, lossless compression-encoding algorithm can only generally obtain 2 to 5 times of compression ratio, but due to the file after its reduction
It can be identical with original, it is ensured that detail of information is undistorted.Therefore, very suitable for compressed text, program and to details
It is sensitive and do not allow the image data for occurring being distorted.
As an alternative embodiment, the lossless compression-encoding algorithm can for Run- Length Coding, LZW coding,
Huffman coding or arithmetic coding scheduling algorithm.
In the application, under the premise of retaining original design intent, model file amount of capacity can be greatly lowered, subtract
Lack number of vertex and the polygon quantity of threedimensional model to improve the loading velocity and graphical rendering efficiency of threedimensional model.
3rd embodiment
The embodiment of the present application also provides a kind of model light-weight technologg devices 110, as shown in Figure 4.The model lightweight
Processing unit 110 includes: removing module 111, conversion module 112 and compression module 113.
Removing module 111, it is unrelated with model structure non-key for being deleted from acquired parametrization threedimensional model
Information.The removing module 111 is also used to extract model file information from acquired parametrization threedimensional model；And
It is also used to delete the non-critical information unrelated with model structure from the model file information.The model file packet
Include: coordinate system defines information, geometry description information, characteristic parameter information, manufacture information, attribute information and historical record letter
Breath, the removing module 111 are also used to delete the characteristic parameter letter unrelated with model structure from the model file information
Breath, manufacture information, attribute information and history information.
Conversion module 112, it is more that the parametrization threedimensional model for that will delete the non-critical information carries out geometric parameter
The processing of side shapeization, obtains grid model.
Compression module 113 obtains light for carrying out coding compression to the grid model based on lossless compression-encoding algorithm
Quantitative model.The compression module 113 is also used to based on Run- Length Coding, LZW coding, Huffman coding or Arithmetic Coding algorithm
Coding compression is carried out to the grid model, obtains light weighed model.
Fourth embodiment
The embodiment of the present application also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program executes the step such as above-mentioned model light-weight technologg method when being run by processor
Suddenly.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
The technical effect of model light-weight technologg device 110 provided by the embodiment of the present invention, realization principle and generation
Identical with preceding method embodiment, to briefly describe, Installation practice part does not refer to place, can refer to preceding method embodiment
Middle corresponding contents.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, laptop, server or network equipment etc.) execute the whole of each embodiment the method for the present invention
Or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.It should be noted that, in this document, relational terms such as first and second and the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of model light-weight technologg method characterized by comprising
The non-critical information unrelated with model structure is deleted from acquired parametrization threedimensional model；
The parametrization threedimensional model for deleting the non-critical information is subjected to the processing of geometric parameter polygonization, obtains grid mould
Type；
Coding compression is carried out to the grid model based on lossless compression-encoding algorithm, obtains light weighed model.
2. the method according to claim 1, wherein it is described from acquired parametrization threedimensional model delete with
The unrelated non-critical information of model structure, comprising:
Model file information is extracted from acquired parametrization threedimensional model；
The non-critical information unrelated with model structure is deleted from the model file information.
3. according to the method described in claim 2, it is characterized in that, the model file information include: coordinate system define information,
Geometry description information, characteristic parameter information, manufacture information, attribute information and history information；It is described from the model
The non-critical information unrelated with model structure is deleted in the file information, comprising:
Deleted from the model file information characteristic parameter information unrelated with model structure, manufacture information, attribute information and
History information.
4. method according to any one of claim 1-3, which is characterized in that based on lossless compression-encoding algorithm to institute
It states grid model and carries out coding compression, obtain light weighed model, comprising:
Coding compression is carried out to the grid model based on Run- Length Coding, LZW coding, Huffman coding or Arithmetic Coding algorithm,
Obtain light weighed model.
5. according to the method described in claim 4, it is characterized in that, from acquired parametrization threedimensional model delete and model
Before the unrelated non-critical information of structure, the method also includes:
The parametrization threedimensional model is obtained using modeling tool.
6. a kind of model light-weight technologg device characterized by comprising
Removing module, for deleting the non-critical information unrelated with model structure from acquired parametrization threedimensional model；
Conversion module, the parametrization threedimensional model for that will delete the non-critical information carry out at geometric parameter polygonization
Reason, obtains grid model；
Compression module obtains lightweight mould for carrying out coding compression to the grid model based on lossless compression-encoding algorithm
Type.
7. device according to claim 6, which is characterized in that the removing module is also used to from acquired parametrization
Model file information is extracted in threedimensional model；And it is also used to delete from the model file information unrelated with model structure
Non-critical information.
8. device according to claim 7, which is characterized in that the model file information include: coordinate system define information,
Geometry description information, characteristic parameter information, manufacture information, attribute information and history information, the removing module, also
For deleted from the model file information characteristic parameter information unrelated with model structure, manufacture information, attribute information and
History information.
9. device according to claim 8, which is characterized in that the compression module is also used to based on Run- Length Coding, LZW
Coding, Huffman coding or Arithmetic Coding algorithm carry out coding compression to the grid model, obtain light weighed model.
10. a kind of electronic equipment characterized by comprising memory and processor, the memory and the processor connect
It connects；
The memory is for storing program；
The processor is for calling the program being stored in the memory, to execute as described in claim any one of 1-4
Method.
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| CN111930742A (en) * | 2020-07-23 | 2020-11-13 | 万翼科技有限公司 | Data storage method based on building information model BIM and related device |
| CN112862910A (en) * | 2021-04-26 | 2021-05-28 | 广东电网有限责任公司东莞供电局 | Method for compressing data of three-dimensional model of transformer substation |
| CN113656359A (en) * | 2021-08-03 | 2021-11-16 | 煤炭科学研究总院 | Method and device for lightening three-dimensional model, computer equipment and storage medium |
| CN116385668A (en) * | 2023-06-02 | 2023-07-04 | 北京数码大方科技股份有限公司 | CAD model light weight method, device and computer equipment |
| US11854145B2 (en) | 2020-04-08 | 2023-12-26 | Speed Technology Co., Ltd. | Octree-based three-dimensional building model LOD method |
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