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IN THE PIPES

How to customize an unique double tag in AutoCAD P&ID

Bernd Gerstenberger
February 13, 2015

By default the line number has to be unique for the whole project in a pipeline segment tag. For some reasons you want to customize that two properties in combination have to be unique in a pipeline segment tag. How can you do this?

For example a pipeline segment was already inserted with property A which has value "1" and property B with the value "a". So the tag is 1-a. The next pipeline segment tag can have values like 1-b or 2-a but not 1-a.

To get the solution you have to know that only these properties in combination have to be unique which are part of the tag-definition of the pipeline group. So you have to modify the tag-definition of the pipeline group. In the example below the "Service" was added to the tag definition of the pipeline group:

Tag_pipelinegroup

Afterwards you have to ensure that both properties are inherited to the pipeline segment class and that both properties are used in the pipeline segment tag:

Tag_pipelinegroup2

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    Bernd Gerstenberger

    Bernd has worked for Autodesk Product Support since 2010. His main role quickly moved from supporting vanilla AutoCAD and Install & Licensing to providing technical support for AutoCAD Plant 3D and AutoCAD P&ID for both customers and partners. Currently he is the Knowledge Domain Expert for AutoCAD Plant 3D at Autodesk. Before his time at Autodesk he gained extensive experience over many years working in different sections of the IT industry: CAD-administration, network administration, database development, plot management, programming, project management, PDM-administration, GIS-applications and workflow systems with different products.

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