Building on the concepts covered in the previous video, this video addresses some of the challenges of working with nested lists or lists that contain lists as its items. First, it covers how a nested list is structured. Then, it shows how to adapt some of the same techniques from the previous video to run successfully in a nested list.
- [Instructor] In another video,…we imported data from an Excel spreadsheet,…which came into Dynamo as a nested list.…Now that we have a better understanding…of how nested lists are constructed,…let's dig into a few of the nodes…that'll help us manage the information…that's structured in this way.…In a previous example, we pointed to an Excel file…that was on our computer and we used the ImportExcel node…to read the data that was available on the table.…As we can see in the node preview…for the RestOfItems node,…what we have is a nested list, nine items long,…with each list consisting of five sub-items.…
Let's begin with a GetItem at index node,…what we used to previously depict…a specific piece of data from a list by its index.…We'll plug our nested list into the list input…and drop in a number node with the value set to one,…which would help us return the data…at index one of this list.…Looking now at the node preview,…it looks like we've extracted a list of data…rather than one single value.…Let's compare this output…
- Placing and connecting Dynamo nodes
- Working with data types and math functions
- Creating number lists and text strings
- Writing data to an Excel spreadsheet
- Filtering and sorting data
- Creating points, curves, surfaces, and solids
- Analyzing geometry
- Linking a Dynamo-driven SAT to Revit
- Placing Revit families with Dynamo
- Creating Revit views and sheets with Dynamo
Skill Level Beginner
Exercise files1m 21s
1. Getting to Know Dynamo
What is Dynamo?6m 9s
2. Working with Data
3. Constructing and Analyzing Geometry
Next steps2m 29s
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