Use of Revit Parameters to Define the Layer-Name

This is in fact a feature of the “Layer-Standards Definition” functionality described in the section Define Layer Standards.

Many Layer-Standards require to have additional information in the layer-name depending on certain features of an element. Examples are “bearing” or “non-bearing” structural elements, material information,positional information like “internal” or “external” for doors etc. In order to support this, it is possible to define layer components whose values are “parameter driven”. As this additional information os usually only required for certain categories, this also requires that it is possible to define layer components that are only applicable to certain categories, which is also possible.

The standard DWG Export funcionality also allows to use the value of parameters as part of the layer name by using a “layer modifier”, but this is not very elegant and it is also limited to very few built-in parameters like “Structural Usage”, “Fire Rating” and “Status”.

With the EDER-Tool, any parameter can be used to generate the value of a layer component.

Either the actual value of the parameter can be used as the vaule for a layer component or a “mapping-table” can be used to define the value for the layer component depending of the value of the paramter.

The use of “parameter-driven” layer components makes the use of the built in “layer modifier” feature of the standard export in Revit obsolete.