All classes Dynamo for Revit Beginner Syllabus · Episode 4 of 7

Dynamo for Revit Beginner Class #4: Reading Element Parameters

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Episode four of the Dynamo for Revit series: reading element parameters, summing, and finding the maximum value. Content: Reading the Area parameter of all walls; Summing with Math.Sum; Finding the maximum value with List.MaximumItem; Complete Revit course from beginner to expert (BIM); Script creation services for Dynamo & BIM Revit modeling; A two-story house project file (.rvt) is available. Complete with rare PDFs

Software: Revit 2027 + Dynamo
Level: Beginner
Duration: ± 4 min
Series total: 28 min · 7 videos
Published: October 15, 2026

Episode 4 of 7 · view syllabus

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Dynamo for Revit Beginner Class #4: Reading Element Parameters: Cover: Dynamo for Revit Beginner Class #4: Reading Element Parameters

Dynamo for Revit Beginner Class #4: Reading Element Parameters: Before you start, step list, and Step 1: Open Dynamo from the Manage tab in Revit

Dynamo for Revit Beginner Class #4: Reading Element Parameters: Step 2–3: Create a new workspace with the New button

Dynamo for Revit Beginner Class #4: Reading Element Parameters: Step 4–5: Read Area parameter - Element.GetParameterValueByName

Dynamo for Revit Beginner Class #4: Reading Element Parameters: Step 6: Find the largest wall with List.MaximumItem

Dynamo for Revit Beginner Class #4: Reading Element Parameters: Done: Final Result and Further Practice

Cover: Dynamo for Revit Beginner Class #4: Reading Element Parameters

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Transcript

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Introduction

In this episode, we read data from Revit elements, the area of each wall, total area, up to the wall with the largest area. All without opening each property one by one. Let's get started. Hello! In this fourth episode, we read Revit element parameters with Dynamo.

Step 1: Open Dynamo from the Manage tab in Revit

Open Dynamo from the Manage tab in Revit, then click Launch Dynamo. Wait until the window opens. At the start page, click New to create an empty workspace.

Step 3: Select all project walls

Select all walls. Right-click on the canvas, search for node categories, select walls, then add All Elements of Category and connect the wires.

Step 4: Read the Area parameter - Element.GetParameterValueByName

Now read the area. Double-click on the canvas to create a code block, then type inside the quotes. This is the name of the area parameter in Revit. Add the element.get parameter value by name node. Connect the wall list to the element, and code block to the parameter name. The watch displays the area of each wall.

Step 5: Sum up all areas with Math.Sum

To sum up, add the mat.zoom node and connect the area list into it. The watch displays the total area of all walls, around 520 square meters.

Step 6: Find the largest wall with List.Maximum|tem

Which wall is the widest? Add the list.max node, connect the area list, and watch display the largest value.

Done! Revit parameters can be read automatically

Done! You can now read Revit parameters automatically. In the next episode, we will write parameters. Goodbye! Want to master Dynamo and Revit? Cerdas Inovasi Digital opens Revit and Dynamo courses, BIM modeling services and Dynamo script creation, as well as selling project files and Dynamo grabs from this tutorial series. Contact our WhatsApp or visit cerdasinovasidigital.com. See you in the next episode!

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Transcript

0:03Introduction

0:26Step 1: Open Dynamo from the Manage tab in Revit

1:13Step 3: Select all project walls

1:43Step 4: Read the Area parameter - Element.GetParameterValueByName

2:23Step 5: Sum up all areas with Math.Sum

2:49Step 6: Find the largest wall with List.Maximum|tem

3:17Done! Revit parameters can be read automatically

Ask the class material

My notes

Questions & answers

Your instructor

▶ Video Lesson

Recommended classes for you

Need more than a video?

Transcript

0:03Introduction

0:26Step 1: Open Dynamo from the Manage tab in Revit

1:13Step 3: Select all project walls

1:43Step 4: Read the Area parameter - Element.GetParameterValueByName

2:23Step 5: Sum up all areas with Math.Sum

2:49Step 6: Find the largest wall with List.Maximum|tem

3:17Done! Revit parameters can be read automatically

Ask the class material

My notes

Questions & answers

Your instructor

Introduction

Step 1: Open Dynamo from the Manage tab in Revit

Step 3: Select all project walls

Step 4: Read the Area parameter - Element.GetParameterValueByName

Step 5: Sum up all areas with Math.Sum

Step 6: Find the largest wall with List.Maximum|tem

Done! Revit parameters can be read automatically

Introduction

Step 1: Open Dynamo from the Manage tab in Revit

Step 3: Select all project walls

Step 4: Read the Area parameter - Element.GetParameterValueByName

Step 5: Sum up all areas with Math.Sum

Step 6: Find the largest wall with List.Maximum|tem

Done! Revit parameters can be read automatically