This has three inputs: an element list, a single parameter name, and a list of values to set to that parameter. The two lists should match in length for predictable results. The values must match the data type allowed by the parameter in Revit. After setting the values, this node returns the now-modified elements as an output.
This List management node will take two lists, and will incrementally take away one list from the other. If you have ListA=1,1,1,1,1 and ListB=1,1,1 and feed them to this node, you should get ListC=1,1. It is used when you want to compare two lists that may have very similar item values. In the example below, it is used to take one single View away from a list of views (notice the different lengths of resulting list).
Send Revit elements to this node and it will delete them. It will also report items that it can’t delete. It is very useful for project cleanup tasks.
This node simply takes a View list, then filters the View Names by two different ‘inclusion’ criteria. Then, any views that have both those criteria present in the View Name are returned in the Output.
This node will take an element, get its location, place a Camera view at that location and use two given Parameters from the element in the resulting View Name. It will also use the Element Id in the View Name.
This node will collect objects by doing a wildcard ‘contains’ search on part of the Link Filename, and then using the Built-in Category Name to collect the desired objects. It can be used with the ‘convert…’ node below to allow human readable category name input as string.
This node provides a base list of Revit Categories and allows the Dynamo user to pick a Category. It then passes a special Category object as an output.
Dynamo Nodes 