Chapter 03 - Task 1 - 🟩 Create and Connect a List of Number
💡 Goal: Understand list creation and numeric data flow.
● Task:
Create a list of numbers from 1 to 10, by 2 ways and verify how Dynamo groups them as one data stream.
● Expected Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Tags: #lists #dataflow #numbers
Related Lessons:
#CH3_L1 (Nodes – Place Node / Connect Inputs and Outputs)
#CH3_L5 (Lists – Create List / Sequence of Numbers)
#CH1_L3 (Parameters and Lists)
Chapter 03 - Task 2 - 🟩 Create a List of Points
💡 Goal: Generate geometry from list data.
● Task:
Use a list of X-coordinates (0 → 4) and constant Y and Z = 0 to create 5 points along the X-axis.
● Expected Output:
Five points in a straight line along X.
Tags: #geometry #points #lists #dataflow
Related Lessons:
#CH5_L1 (Points – Creating Point / Matrix of Points)
#CH3_L5 (Lists – Sequence of Numbers and Mapping to Geometry)
#CH3_L1 (Nodes – Connecting Wires and Watch Results)
Chapter 03 - Task 3 - 🟩 Access Specific Items by Index
💡 Goal: Extract individual items from a list.
● Task:
Copy this list in the code block ["Hello", [8, [1, 2], ["Dynamo"]], 9], and get the world "Hello", and the word "Dynamo", they try to merge those strings together in one sentence.
● Expected Output:
"Hello Dynamo"
Tags: #lists #indices #geometry #accessingdata
Related Lessons:
#CH3_L5 (Lists – Index Of / Sub-Lists / Access Items)
#CH1_L4 (Programming Concepts – Indices and Logic Operations)
Chapter 03 - Task 4 - 🟩 Reverse a List
💡 Goal: Change item order.
● Task:
Reverse the sequence of the list [1, 2, 3, 4, 5].
● Expected Output:
[5, 4, 3, 2, 1]
Tags: #lists #order #manipulation
Related Lessons:
#CH3_L5 (Lists – Reverse / Sort / Manipulate Order)
#CH1_L3 (Parameters and Lists – Data Structure Basics)
Chapter 03 - Task 5 - 🟨 Combine Two ListS
💡 Goal: Pair related data between lists.
● Task:
Create one list of room names ["Living", "Kitchen", "Bath"] and another of areas [25, 15, 10]; combine them into single strings like “Living = 25”.
● Expected Output:
["Living = 25", "Kitchen = 15", "Bath = 10"]
Tags: #lists #conditional #safety
Related Lessons:
#CH3_L5 (Lists – Combine / Union / Zip Items)
#CH1_L4 (Programming Concepts – String Concatenation and Logic)
Chapter 03 - Task 6 - 🟨 Flatten Nested Lists
💡 Goal: Simplify multi-level list structures.
● Task:
Start with [[1, 2, 3], [4, 5, 6]] and flatten it into a single list.
● Expected Output:
[1, 2, 3, 4, 5, 6]
Tags: #lists #nesting #flatten #levels
Related Lessons:
#CH3_L5 (Lists – Flatten / Chop / Deconstruct)
#CH1_L3 (Parameters and Lists – Nested Structures)
Chapter 03 - Task 7 - 🟨 Map an Operation to a List
💡 Goal: Apply the same function to every item in a list.
● Task:
Given [2, 4, 6, 8], double each number to produce a new list.
● Expected Output:
[4, 8, 12, 16]
Tags: #lists #map #iteration #function
Related Lessons:
#CH3_L5 (Lists – Map and Iteration through Operations)
#CH1_L4 (Programming Concepts – Loops and Iteration Logic)
Chapter 03 - Task 8 - 🟨 Experiment with Lacing
💡 Goal: Explore how Dynamo handles lists of different lengths.
● Task:
Create two lists of lengths 3 and 5 and connect them through a math operation; observe results for Shortest, Longest, and Cross-Product lacing.
● Expected Output:
Shortest = 3 results, Longest = 5, Cross-Product = 15.
Tags: #revit #parameters #rooms #lists
Related Lessons:
#CH4_L6 (Lacing – Shortest / Longest / Cross Product Modes)
#CH3_L5 (Lists – Sequence Matching and Structure)
#CH2_L2 (Dynamo Interface – Geometry Preview and Interaction)
Chapter 03 - Task 9 - 🟨 Create Points from Two Lists
💡 Goal: Combine parallel lists into geometry.
● Task:
Use X-list (0 → 4) and Y-list (0 → 4) to create points at matching coordinates (X,Y).
● Expected Output:
Points (0,0), (1,1), (2,2), (3,3), (4,4).
Tags: #geometry #lists #combine #coordinates
Related Lessons:
#CH5_L1 (Points – Point.ByCoordinates)
#CH3_L5 (Lists – Combine Parallel Data)
#CH3_L1 (Nodes – Connecting Inputs and Outputs)
Chapter 03 - Task 10 - 🟨 Extract Revit Element Parameter Li
💡 Goal: Access structured data from the model.
● Task:
Collect all walls in Revit and extract two parameters — Length and Area — as separate lists.
● Expected Output:
Equal-length lists of numeric values for each parameter.
Tags: #revit #parameters #lists #elements
Related Lessons:
#CH3_L6 (Revit Nodes – Get Parameters for Elements or Families)
#CH1_L2 (Data Types & Revit API Objects)
#CH4_L1 (Selections – Select from Revit by Type or Family)
Chapter 03 - Task 11 - 🟨 Filter Revit Elements by Parameter
💡 Goal: Apply list filtering logic to model data.
● Task:
Using the wall length list from Task 11, filter only walls longer than 5 meters.
● Expected Output:
List of wall elements meeting the condition.
Related Lessons:
#CH4_L2 (Filtering – Filter by Condition / Parameter)
#CH3_L6 (Revit Nodes – Parameter Manipulation)
#CH1_L4 (Programming Concepts – Conditional Logic)
Chapter 03 - Task 12 - 🟥 Merge Multiple Parameter Lists int
💡 Goal: Combine complex Revit data into a readable format.
● Task:
For all walls, collect Length, Area, and Type Name parameters, then merge them into a single structured list or table for export.
● Expected Output:
[["Wall1", 5200, 14.5], ["Wall2", 3600, 9.7], ...]
Related Lessons:
#CH3_L6 (Revit Nodes – Get Multiple Parameters)
#CH3_L5 (Lists – Combine / Merge Lists)
#CH4_L10 (Reading and Writing Excel – Transposing and Exporting Data)
Chapter 03 - Task 13 - 🟥 Find Maximum and Minimum Values in
💡 Goal: Analyze data inside lists.
● Task:
From a list of wall lengths, find the maximum and minimum values and highlight the corresponding elements in the Revit model.
● Expected Output:
One “Longest Wall” and one “Shortest Wall” highlighted.
Tags: #revit #analysis #lists #minmax
Related Lessons:
#CH3_L5 (Lists – Max / Min / Unique Items)
#CH3_L6 (Revit Nodes – Highlight Elements by Parameter Value)
#CH4_L10 (Reading and Writing Excel – Data Reporting)
Chapter 03 - Task 14 - 🟥 Filter Elements by Two Parameters
💡 Goal: Combine multiple filters to refine selection.
● Task:
Collect all walls, then filter those whose Area > 15 m² and Length > 5 m.
● Expected Output:
Only walls satisfying both conditions remain.
Tags: #revit #filter #andlogic #lists
Related Lessons:
#CH4_L2 (Filtering – Boolean and Compound Filters)
#CH3_L6 (Revit Nodes – Parameter Filtering in Model Data)
#CH1_L4 (Programming Concepts – And/Or Logic)
