Schematic Model Manager
User Guide
Appendices
:
Appendix G: Configuration of Line Lists using Pseudo Attributes
: Line List Attributes and Comparison with the 3D Design
Line List Attributes and Comparison with the 3D Design
Schematic 3D Integrator can now optionally suppress the reporting of schematic and design hierarchy below main object type level. This allows Integrator to be used to check that pipelines are matched at SCPLINE/PIPE level. Where such a match occurs, appropriate element attributes may then be used in an attribute comparison.
This feature supports the comparison of a simplified schematic piping model, analogous to a line list, against a 3D model, without the need for a full Schematic SCPLIN/SCBRANCH/SCSEGMENT hierarchy. In addition a Release to 3D is not required for such a comparison to take place.
The configuration of this feature is carried out using the Line List Configuration tool.
User configurable Pseudo attributes have been added to the Design elements PIPE and BRANCH. These support the definitions of conditional rules to include/exclude PIPE and BRANCH elements from a comparison, and the derivation of pseudo values of use in this comparison. This configuration is carried out using the Line List Configuration attribute tool.
The LINE and BRANCH pseudo attributes are:
Element
Pseudo Attribute
Type
Purpose
PIPE BRANCH
LLENTRY
Bool
Determines if the PIPE and BRANCH should be used in a line list deliverable or in a comparison. Pipeline and Branch selection may be user defined using a rule configured using the Line List Configuration tool which conditionally sets this value, or it may be manually set.
PIPE BRANCH
LLFROM
Text
Derived value. Hold's the text which indicates the source of the pipeline and branch. The method used to derive the content is user defined using the Line List Configuration Tool
BRANCH
LLTBRANCH
Text
Derived value. This is the BRANCH element where the main flow from the current branch terminates or leaves the current PIPE. This enables the user to access the attributes at the end of the line list entry such as the terminating BORE size (TBORE OF LLTBRANCH)
PIPE BRANCH
LLTO
Text
Derived Value. Hold's the text which indicates the destination of the pipeline and branch. The method used to derive the content is user defined by using the Line List Configuration tool.
The following example illustrates how a SCPLINE LLFROM and LLTO prefix value may be conditionally set where that element has been sourced from an Excel import containing a simplified piping connectivity model analogous to a line list.
The value of the UDA :Pmgdesc is used both to identify SCPLINE elements which have been sourced from such an import, and to derive the LLFROM and LLTO prefix value. This allows the LLFROM and LLTO attributes to be included in a simple line list based 2D/3D comparison using Schematic 3D Integrator, to be identified.
The above rule will set the prefix of LLFROM and LLTO pseudo attributes for a SCPLINE to LINELIST, where the element pseudo attribute :Pmgdesc is equal to the text value LINELIST.
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