OpenStudio is a cross-platform collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance.
E+ has capabilities to point these objects to a CSV file, but OS SDK doesn't have it implemented.
We've added the fields but they are just reserved for potential future implementation at the moment. There is no getter/setter for it, nor a constructor that accepts an ExternalFile, and that's because we didn't add this capability when we replaced Table:MultiVariableLookup with Table:Lookup / Table:IndependentVariable (which didn't have the ExternalFile option) in https://github.com/NREL/OpenStudio/pull/4652.
[...]
, !- External File Name
, !- External File Column Number
, !- External File Starting Row Number
[...]
## Possible Implementation
Constructor that takes ExternalFile. Getters/Setters for Column Number, Start Row number.
Unclear how we enforce correspondance of ExternalFile between Table:Lookup and Table:IndependentVariable(s).
Enhancement Request
E+ has capabilities to point these objects to a CSV file, but OS SDK doesn't have it implemented.
We've added the fields but they are just reserved for potential future implementation at the moment. There is no getter/setter for it, nor a constructor that accepts an ExternalFile, and that's because we didn't add this capability when we replaced Table:MultiVariableLookup with Table:Lookup / Table:IndependentVariable (which didn't have the ExternalFile option) in https://github.com/NREL/OpenStudio/pull/4652.
Detailed Description
Originally reported by @Ski90Moo at https://github.com/NREL/OpenStudio/issues/5067
TableLookup: https://bigladdersoftware.com/epx/docs/23-2/input-output-reference/group-performance-tables.html#field-external-file-name
Table:IndependentVariable: https://bigladdersoftware.com/epx/docs/23-2/input-output-reference/group-performance-tables.html#field-external-file-name-1
Both have these fields: