CN105468869A - Topological relation analysis method of PDS (Plant Design System) model - Google Patents
Topological relation analysis method of PDS (Plant Design System) model Download PDFInfo
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- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G06—COMPUTING; CALCULATING OR COUNTING
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Abstract
The invention provides a topological relation analysis method of a PDS model, comprising steps as follows: S1, defining topological relation data structures of a PDS; S2, obtaining the graphic file path corresponding to every model in a PDS project; S3, sequentially scanning a graphic file corresponding to the PDS model to obtain the graphic elements in the file representing model elements; S4, obtaining feature codes for determining element identities; S5, obtaining the key point coordinates of the elements for carrying out topological relation analysis; repeating steps S2 to S5; S6, finding out the topological relations of all elements through the key point coordinates. According to the topological relation analysis method of the PDS model provided by invention, all professional topological relations in the PDS model such as pipelines, devices and bridges can be obtained automatically; the relations are stored in a database; the unstructured graphic information is converted into the structured data in the database; therefore the flexibility and readability of the topological relation data of the PDS model are promoted remarkably.
Description
Technical field
The present invention relates to three-dimensional model disposal route, be specifically related to a kind of topological relation analytic method of PDS model.
Background technology
PDS (PlantDesignSystem) is the Three-dimensional Design Software of a extensive utilization.PDS software, as a collaborative design system that is integrated, multi-specialized participation, can help each professional designer to carry out three-dimensional modeling and design review (check) (DR) fast, substantially increase work efficiency and designing quality.In chemical industry and energy industry, PDS software is widely used and has had countless successful story.
Along with computer technology is advanced by leaps and bounds and the continuous propelling of industrial automation process, design and analysis integration becomes trend of the times.Topological relation in model to be stored in graphic file but not in database by PDS, non-structured data make topological relation data acquisition underaction, and the topological relation data of three-dimensional model are extremely important for follow-up analytical calculation, this just causes PDS software and subsequent analysis software directly cannot carry out data interaction, and needs to carry out interface exploitation.Found there is no ripe PDS model topology relation decomposing software in the market by investigation.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of topological relation analytic method of PDS model.
The topological relation analytic method of PDS model comprises the following steps:
S1, definition PDS topological relation data structure, data structure can all topological relations of complete representation each PDS parts;
S2, obtains each model graph of a correspondence file path in PDS project;
The graphic element of S3, order scanning PDS model graph of a correspondence file acquisition file internal representative model element, wherein PDS model graph of a correspondence file is DGN file;
S4, the graphic element of corresponding model element, obtains its condition code and is used for determining element identity;
S5, the graphic element of corresponding model element, the key point coordinate obtaining element is used for carrying out topological relation analysis;
Repeat S2 to S5, until the DGN file scan of whole PDS project is complete, in this project, the condition code of all elements and key point coordinate are all detected;
S6, finds out the topological relation of all elements by key point coordinate matching, in the topological relation data structure stored in S1 definition, and form structural data stored in database.
Preferably, each model graph of a correspondence file path should be found in the acquisition PDS model corresponding diagram shape file path of described S2 from the database corresponding data table of PDS project.
Preferably, the order scanning patter file internal model element of described S3 comprises the following steps:
S3.1, extracts all elements from graphic file, due to the element necessarily graphic element of PDS, so filter out all non-graphic elements in scanning, only retains all graphic elements;
S3.2, the element representing PDS model element is found in the graphic element obtained after scanning, remove rubbish element, criterion is whether there is DMRSLinkage (PDS software is attached to the condition code on graphic element) in element, if existed, be PDS model element, do not exist, be rubbish element and remove.
Preferably, the acquisition condition code determination element identity of described S4 comprises the following steps:
S4.1, according to the difference of graphic element kind, judges to read the method for elemental characteristic code and reads the condition code DMRSlinkage of element;
S4.2, if pipeline or crane span structure specialty, also should from DMRSlinkage the DMRSlinkage of the corresponding center line of obtaining widget, for obtaining storage attribute information on centerline.
Preferably, the key point coordinate of the acquisition element of described S5 comprises the following steps for the analysis carrying out topological relation:
S5.1, according to the difference of graphic element kind, judges the memory location of key point coordinate, and as coneelement, then key point is two end face coordinates;
S5.2, according to the judged result of S5.1, obtains key point coordinate, and stored in the topological relation data structure defined.
Compared with prior art, the present invention has following beneficial effect:
1, the topological relation analytic method of PDS model provided by the invention, the topological relation of whole specialties of pipeline, equipment, crane span structure etc. can be comprised in automatic acquisition PDS model, and stored in a database, non-structured graphical information is converted into the structural data in database, thus the dirigibility of the topological relation data of PDS model and readability are promoted significantly, it also avoid follow-uply needs overlapping development when using PDS model topology relation data and manual labor, greatly promotes design efficiency and quality.
2, the topological relation analytic method of PDS model provided by the invention, for PDS software and other software interfaces provide Data safeguard.
3, the topological relation analytic method of PDS model provided by the invention, whole process automatically completes, and without the need to human intervention, easy and simple to handle, production efficiency is high.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the topological relation analytic method of the PDS model meeting the preferred embodiment of the present invention.
Fig. 2 meets the single graphic file acquisition graphic element condition code of the preferred embodiment of the present invention and the schematic flow sheet of key point coordinate.
Fig. 3 is the schematic flow sheet being completed topological relation structural model by key point matching algorithm meeting the preferred embodiment of the present invention.
Fig. 4 is pipeline connection diagram.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, the topological relation analytic method of PDS model comprises the following steps:
S1, definition PDS topological relation data structure, data structure can all topological relations of complete representation each PDS parts, and therefore this data structure needs component type and the element identity that can not only reflect self, also will can reflect the annexation of current elements and other elements.
S2, obtains each model graph of a correspondence file path in PDS project.The store path of graphic file has detailed record in the database of PDS project, in the pd table of concrete record position in PDS database.Wherein the graphic file of PDS software is the DGN file of Microstation software creation.
The graphic element of S3, order scanning PDS model graph of a correspondence file acquisition file internal representative model element.In scanning process, can ignore for the non-graphic element in DGN file, because the element of PDS can be only graphic element; Simultaneously, for the graphic element without any linkage data link, also can ignore, because the element inside PDS model all can have Data-Link to fetch the relevance ensureing graphic element and database, therefore scanning what obtain in S3 should be all graphic element with data link.
S4, the graphic element of corresponding model element, obtains its condition code and is used for determining element identity, and condition code is also graphic element and the connection bridge storing attribute data in a database simultaneously.Wherein condition code is stored in the DMRSlinkage of graphic element, and each element for each model has unique condition code corresponding with it.For pipeline and crane span structure specialty, the graphic element of its parts contains multiple DMRSlinkage, first condition code representing himself, all the other then represent the condition code of the center line corresponding with it, as long as therefore find center line consistent with the center line condition code in parts in model, just parts and center line can be associated together.As shown in Figure 4, " linkage2 " of 01 should equal " linkage1 " of 02, just parts can be mapped with center line in this way.
S5, the graphic element of corresponding model element, the key point coordinate obtaining element is used for carrying out topological relation analysis.Here key point coordinate refers to the extreme coordinates of each element, can be known topological relation and the volume coordinate of self of element and other elements by end face coordinate.
Corresponding different specialties, the key point coordinate obtain manner of its model element is also different.Key point coordinate how is obtained below for the duct element introduction of tube profession.
For duct element, its graph of a correspondence element is simple elements coneelement, and therefore its end face coordinate is exactly two end face coordinate center1 and center2 of cylinder.
By S4 and S5, the topological relation relevant information of each element can be obtained, add S3, then can obtain the topological relation relevant information of all elements in each model.Process flow diagram corresponding to these three steps of S3, S4, S5 as shown in Figure 2.
Then repeat S2 to S5, until the DGN file scan of whole PDS project is complete, in this project, the condition code of all elements and key point coordinate are all detected.Due to for each model, not all element is all connected with model inner member, must have the annexation between model, therefore must complete the acquisition of the topological relation information of all elements of whole project, could generate complete topological relation.
Finally, carry out S6, found out the topological relation of all elements by key point coordinate matching, in the topological relation data structure stored in step S1 definition, and form structural data stored in database.The whole process of S6 as shown in Figure 3, first the topological relation information data of all elements in the project that obtained is read, then the topological relation information data (i.e. the condition code of each element and end face coordinate) of each element is read one by one, process is each end face coordinate of corresponding current elements, the coordinate points whether having coupling is found in the topological relation confidence data of whole project, if match point does not have, then when front end face is unsettled, if there is a coordinate points coupling, then current elements is connected with this element, if have more than a coupling, then there is configuration errors and record, until all end faces of current elements have all carried out coupling, then the topological relation of current elements obtains, proceed to next element, such circulation is until all elements all complete the acquisition of topological relation information.As shown in Figure 4, if pipeline is connected with elbow, then " cp2location " 04 of pipeline should be consistent with " cp1location " 05 of elbow.Finally by the topological relation data that complete stored in database, make non-structured PDS topological relation be converted into structurized database data, add dirigibility and the expansion of program.
Compared with prior art, the present invention has following beneficial effect:
1, the topological relation analytic method of PDS model that provides of the present embodiment, the topological relation of whole specialties of pipeline, equipment, crane span structure etc. can be comprised in automatic acquisition PDS model, and stored in a database, non-structured graphical information is converted into the structural data in database, thus the dirigibility of the topological relation data of PDS model and readability are promoted significantly, it also avoid follow-uply needs overlapping development when using PDS model topology relation data and manual labor, greatly promotes design efficiency and quality.
2, the topological relation analytic method of PDS model that provides of the present embodiment, for PDS software and other software interfaces provide Data safeguard.
3, the topological relation analytic method of PDS model that provides of the present embodiment, whole process automatically completes, and without the need to human intervention, easy and simple to handle, production efficiency is high.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Those skilled in the art can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. a topological relation analytic method for PDS model, is characterized in that, comprise the following steps:
S1, definition PDS topological relation data structure, data structure can all topological relations of complete representation each PDS parts;
S2, obtains each model graph of a correspondence file path in PDS project;
The graphic element of S3, order scanning PDS model graph of a correspondence file acquisition file internal representative model element, wherein PDS model graph of a correspondence file is DGN file;
S4, the graphic element of corresponding model element, obtains its condition code and is used for determining element identity;
S5, the graphic element of corresponding model element, the key point coordinate obtaining element is used for carrying out topological relation analysis;
Repeat S2 to S5, until the DGN file scan of whole PDS project is complete, in this project, the condition code of all elements and key point coordinate are all detected;
S6, finds out the topological relation of all elements by key point coordinate matching, in the topological relation data structure stored in S1 definition, and form structural data stored in database.
2. the topological relation analytic method of PDS model as claimed in claim 1, it is characterized in that, each model graph of a correspondence file path should be found in the acquisition PDS model corresponding diagram shape file path of described S2 from the database corresponding data table of PDS project.
3. the topological relation analytic method of PDS model as claimed in claim 1, it is characterized in that, the order scanning patter file internal model element of described S3 comprises the following steps:
S3.1, extracts all elements from graphic file, due to the element necessarily graphic element of PDS, so filter out all non-graphic elements in scanning, only retains all graphic elements;
S3.2, finds the element representing PDS model element in the graphic element obtained after scanning, remove rubbish element, criterion is whether there is DMRSLinkage in element, if existed, is PDS model element, does not exist, and is rubbish element and removes.
4. the topological relation analytic method of PDS model as claimed in claim 1, it is characterized in that, the acquisition condition code determination element identity of described S4 comprises the following steps:
S4.1, according to the difference of graphic element kind, judges to read the method for elemental characteristic code and reads the condition code DMRSlinkage of element;
S4.2, if pipeline or crane span structure specialty, also should from DMRSlinkage the DMRSlinkage of the corresponding center line of obtaining widget, for obtaining storage attribute information on centerline.
5. the topological relation analytic method of PDS model as claimed in claim 1, it is characterized in that, the key point coordinate of the acquisition element of described S5 comprises the following steps for the analysis carrying out topological relation:
S5.1, according to the difference of graphic element kind, judges the memory location of key point coordinate;
S5.2, according to the judged result of S5.1, obtains key point coordinate, and stored in the topological relation data structure defined.
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| CN109117564A (en) * | 2018-08-22 | 2019-01-01 | 上海核工程研究设计院有限公司 | A kind of system and method for PDS threedimensional model conversion RELAP5 model |
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| CN111368381B (en) * | 2020-03-06 | 2024-02-23 | 上海天麦能源科技有限公司 | Intelligent information processing method and system for water pipe network |
| CN114896792A (en) * | 2022-05-16 | 2022-08-12 | 上海核工程研究设计院有限公司 | S3D air duct model space topological relation analysis and topological network model establishment method |
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