Applies To Product(s): OpenPlant Modeler Version(s): 08.11.09.XXX (SS5) | 08.11.11.XX (SS6) Environment: Windows 7/8.1/10 (64 bit) Area: Component Subarea: Data Original Author: Harpreet Singh, Bentley Product Advantage Group Background Requirement is to calculate the property value with the help of EC Expression. In this example, we will calculate a property based on formula using EC Expression on Directional Pipe guide. Steps to Accomplish Launch class editor and load OpenPlant_Catalogue.01.07 schema. This schema is located in C:\ProgramData\Bentley\OpenPlantModeler V8i\WorkSpace\OPModeler\schemas folder. Go to AP_3D_COMPONENT_TABLE class as shown below. Right click and select Add Derived Class option from context menu. Name the class as AP_3D_DIRECTIONAL_PIPE_GUIDE as shown below. Switch to properties tab and add new property. Name the property GUIDE_LENGTH and change the property Type Name to "double" as shown below. Note: GUIDE_LENGTH is the column name in Spec Table. Add another property NOMINAL_SIZE and change the TypeName to "double". Save the changes in the schema and load OpenPlant_3D schema from your project schemas. This schema is generally located in C:\ProgramData\Bentley\OpenPlantModeler V8i\WorkSpace\Projects\%Project_Name%\Dataset\schemas folder. Go to DIRECTIONAL_PIPE_GUIDE class and switch to properties tab. Add new property BOX_TEST. Note: If you make this a "double property", you can do that by changing the TypeName field. Add custom attribute "OpenPlant_Physical_Catalogue_Property_Map" on this property. Right click on EC Expression field and select "Add Element" option. Add below expression in EC Expression field. COMPONENT_TABLE.NOMINAL_SIZE + (COMPONENT_TABLE.GUIDE_LENGTH*2) Save the changes and verify the result by placing directional pipe guide in the model. See Also Comments or Corrections? Bentley's Product Advantage Group requests that you please confine any comments you have on this Wiki entry to this Comments or Corrections?" section. THANK YOU!
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