Input of PlantWAVE :
Design database :
PlantWAVE uses PDMS design database (model) as inputs. These design data are the piping design data, equipment design data, structural design data and HVAC design data. Each item of design data is defined geometrically in PDMS as a collection of basic 3D shapes known as primitives. These primitives is used for the background graphics of the drawing and used to calculate the geometric relationship for understanding the geometry.
Design Attributes :
Design attributes are the input of PlantWAVE also. These attributes that are general attributes and special attributes include the non-geometric information of design models. PlantWAVE extracts the information from the design attributes by applying them to the design models. In addition to their standard attributes, elements may have one or more Userdefined Attributes (UDAs). The UDAs can be used for the annotations by user¡¯s option in PlantWAVE option stage.
Catalogue DB :
It contains physical information about standard piping and structural components available in a PDMS project. The catalogue DB is also the input of PlantWAVE in case that PlantWAVE generates 2D hidden drawing directly without using PDMS drawings. If user wants to use the drawing that was created by PDMS, catalogue DB will not be used.
How to be extracted :
The input data are extracted from the PDMS database by the PlantWAVE pre-processor, which was written in PDMS DARs (Data Access Routine) and PML (Programmable Macro Language). The pre-processor is executed by the command of PlantWAVE¡¯s user interface with the given condition and option values.
PlantWAVE consists of the following 4 main processors :
Pre Processor :
Pre processor reads the design model and attributes that are referenced in the drawing. There is more than one view in the drawing in general. All the data are extracted and distributed to the related views. The extracted data is refined and forwarded to HSR processor.
At this point, all the coordinates are the model coordinates. They should be transformed into the drawing coordinates by considering the view direction, view scale, view rotation in the drawing.
In general, there are 5 kinds of design models to be read as follows:
¨ª Piping design model
¨ª Equipment design model
¨ª Structure design model
¨ª HVAC design model
¨ª Electric cable tray design model
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