In Rhino.Inside.Revit, you can select Revit elements using specific components that interface with the Revit API. Here's how you can select and work with Revit elements through Grasshopper and Rhino.Inside.Revit:

Referencing Elements

This component lets you select individual Revit elements directly from the model.

To use it:

1. Place the <Revit or Revit Elements> component from the Rhino.Inside.Revit tab in Grasshopper.
2. <Right-click> the component and select <Set One Element> or <Set Multiple Elements>
3. This will allow you to pick specific elements from the Revit model within the Rhino interface.
4. Once selected, these elements can be referenced and manipulated in Grasshopper.

Revit Components

Revit Elements Component

Mouse Right-click

Graphical Element to reference geometrical Revit elements - Source

Picker Components

In Rhino.Inside.Revit, "Picker" components are specialized tools within Grasshopper that allow users to interactively select elements from the Revit model and bring them into Grasshopper for further manipulation or analysis. These components act as a bridge between the Revit environment and Grasshopper, facilitating the selection of elements in an intuitive way.

• Selection and Interaction: Picker components help you interact with Revit elements, types, parameters, categories, and views directly within Grasshopper.
• Parametric Control: Once selected, these elements can be manipulated or queried parametrically in Grasshopper, allowing for powerful design workflows.
• Data Extraction: Pickers allow you to extract critical information like element parameters, geometry, and relationships from Revit into Grasshopper.

Filter Components

Filter components in Rhino.Inside.Revit provide powerful ways to manage large sets of Revit elements by refining selections based on filter rules, categories, parameters, types, views, or geometry. These components streamline workflows, enabling more targeted queries, and make working with complex models much more efficient.