Tag Archives: Dynamo

BIMxHTML v0.0.8 – More Custom Nodes to Generate Google Charts

It looks like there has been some interest in the BIMxHTML Dynamo package and its encouraged me to develop some custom nodes to simplify the display of Google Charts using pure Dynamo.

The Custom Nodes

Download the sample files below to get a good example of how to use these nodes. Essentially, they output an entire web page and as of today the intent is to use them in the iframes of a dashboard.

Data Set – Quantities of Family Types.dyf

Use this node to build a dictionary of family types of any given category. The output is actually a list of sublists which contain the [key, value] pairs as [family type, quantity]. For example:  [Diffuser24x24, 17].

This node is helpful to use for the input of any of the Google Chart nodes.

Create a data set for use as input to the BIMxHTML nodes.

Generate Web Page – Google Pie Chart.dyf

Creates the complete web page to display a responsive pie chart based on the Google Charts API. The intent for the HTML file is to reference it in an iframe for a dashboard (more on that to come).

Refer to the Google Charts documentation for options input.

Create the HTML for a Google Pie Chart.

Generate Web Page – Google Bar Chart.dyf

This node takes the same exact input as the Pie Chart node and outputs a bar graph.

Refer to the Google Charts documentation for options input.

Create the HTML for a Google Bar Chart.

Sample Files

Refer to the sample Dynamo graphs below to get a better idea of how to use these nodes. Dashboard-Mech.html is currently the best example because it displays a pie chart, a bar chart, and a table – all generated directly from Dynamo.

BIMxHTML-Examples-v0-2.zip (21 downloads)
A dashboard generated using Revit, Dynamo, Bootstrap, and Google Charts.
A dashboard generated using Revit, Dynamo, Bootstrap, and Google Charts.

BIMxHTML – A Dynamo Package to Generate Web Pages

All of the excitement revolving around generating dashboards using Power BI made me wonder: Can we leverage Dynamo to create web pages that display data directly from a Revit model? The goal would be to create a powerful, free alternative to generating web-based content using simple HTML code.

Needless to say, the gears have been turning and I have been experimenting. With that said, I have published my first Dynamo package, BIMxHTML, which will eventually have several nodes to display content on a web page using very basic HTML. I have been playing with Twitter Bootstrap and Google Charts so far.

Update: New nodes have been published to v0.0.8 which streamline the creation of Google Charts. Read up on the nodes here:

For now a single node is included in the BIMxHTML package: Generate Web Page.

Using Dynamo node to create a static HTML web page.

The inputs for Generate Web Page contain several default values for configuring the <head> of the web page. I have also included inputs to allow users to link to external CSS stylesheets and JavaScript files or embedded code for custom <style> or <script> tags. All without managing the template’s HTML directly.

I have a sample model and graph for you to see the node in action available for download below.

Use Dynamo to generate a static HTML web page.
Sample Dynamo graph using BIMxHTML nodes to create an HTML web page.

Sample Files Explained

There are a few sample graphs included in the download below. Please keep in mind that these are extremely early examples of the possibilities of using Dynamo to extract Revit data and output HTML for display in any modern browser. Currently, I have been experimenting with a combination of Twitter Bootstrap and Google Charts, but if you have any suggestions on other frameworks or analytics tools, please make a suggestion in the comments below.

Table Sample.dyn (TableTest.html)

Creates a list with parameter values as sublists.

  1. Using Python, the HTML code for a table is generated using each list item as a table row and each sublist item as a column value. Note: a custom node will be added to this package to handle this in the near future.
  2. Finally, the Generate Web Page node from the BIMxHTML package creates the entire web page’s code and then writes the code to an external HTML file.

Google Charts – Pie Chart.dyn (Air Terminals.html / Ducts.html)

Creates an HTML page containing a Google Charts pie chart displaying the quantity of family types per category.


A sample Bootstrap layout which uses iframes to display the pie charts generated from Google Charts – Pie Chart.dyn.

Use Dynamo and Revit to create a free alternative to Power BI
A dashboard generated using Dynamo, Revit, Twitter Bootstrap, and Google Charts.


Would these tools help you with your workflows? Do you have any suggestions on how I can improve on these? Would you like to help contribute? Please leave your questions and comments below.

BIMxHTML-Sample-Files-1.zip (85 downloads)

Hello Dynamo World!

In learning every new programming language, it is customary to start with a “Hello world!” application. Although visual, Dynamo is a scripting tool as well, so I thought this would be a great first step for folks who are new to Dynamo.

In this post, we demonstrate how to display “Hello world!”  in the Revit application in two ways:

  1. Displaying a TaskDialog in Revit using a combination of Dynamo and Python.
  2. Adding a TextNote to a view using only out-of-the-box (OOTB) nodes.

Hello World Using Dynamo and Python

Hello world Dynamo graph

The image above shows the completed graph (download below). Most of the work is done within the Python script which uses two inputs as variables.

Insert a Python Script node.

Once the node is placed in your graph, you will need to click the “+” button to add an additional input.

Python script node in Dynamo to show a task dialog in Revit.

After adding the second input, you should see IN[1] as shown below.

Python script in Dynamo to show a task dialog in Revit.

Add strings to your input.

For this example, I’ve shown two different nodes that you can use to output strings in Dynamo. The String node outputs a string from the value that you insert into the node (Hello). The Code Block node must include double quotes and a semicolon to output a string (“Hello world!”;).

In computer programming, a string data type is a set of characters. This can be in the form of a sentence or a file path, and can contain special characters and/or spaces. Strings are typically enclosed using double quotes.

Connect the nodes to the inputs as shown below.

Hello world Dynamo graph

Insert code to the Python Script node.

To open the code editor in Dynamo, double-click on the blank area of the node as highlighted below.

Edit a python script in Dynamo

Insert the code below to the code editor. Note that we are including the Autodesk.Revit.UI namespace in order to use the TaskDialog.Show() method from the Revit API.

I highly recommend that you type this code in rather than copy/pasting. It will help you start to understand Python’s syntax.

import clr
from Autodesk.Revit.UI import TaskDialog

windowTitle = IN[0]
windowMessage = IN[1]

messageDialog = TaskDialog
OUT = messageDialog.Show(windowTitle, windowMessage)

If your Dyn is set to run automatically (it is by default)  you should immediately see the dialog box pop up in Revit. If set to manual, click the Run button in the bottom left of Dynamo to run the script.

Here is a link to the Dynamo graph used in this example:
HelloWorld.dyn (58 downloads)

Hello World with OOTB Nodes

Dynamo BIM - Hello World in Revit

The image above is the completed graph (download below) and will create a TextNote in the Revit view of your choice.

1) TextNote.ByLocation
This node does all of the work. It will place a text element in the view that you choose. The node has several inputs, but for this example we will only use the first four inputs.

2) Views
A node that provides a drop down menu of all of the views in your project. Choose a floor plan view in your active model as you follow this example.

3) Point.ByCoordinates
This node outputs a Point based the x, y, z inputs. For this example, I’ve shown three different nodes that you can use to generate number values: 4) Number , 5) Code Block, and 6)Number Slider

7) String
The value in the String node goes into the “text” input for the content of the text note element in the Revit view.

8) String
The value in this String node goes into the “alignment input”

Here is a link to the Dynamo graph used in this example:
Hello World - Text (75 downloads)

Questions? Post your comments below!

Seattle Dynamo User Group

Rather than hosting a Dynamo training session in the greater Seattle area, we decided to organize and sponsor the Seattle Dynamo User Group Meetup! The meetup group was only formed on February 1, 2017 and we already have 17 members.

We will schedule the first meetup as soon as we have speaker and a venue in place. We are currently searching for both, so please let us know if you can help us find either of the two.

We are extremely excited to lead this community! Here’s to sharing, learning, and networking with other Dynamo users in Seattle.

Seattle Dynamo User Group

Seattle, WA
20 Members

Are you interested in using Dynamo to streamline workflows, build complex geometry, or harness BIM data? Join us to learn and share experiences about this exciting new visual …

Check out this Meetup Group →


Use Dynamo to delete all views in Revit

I have been working on a Dynamo Workflow that will purge out all views and sheets from a Revit model. Yes, there are several add-ins that currently accomplish this task, however I eventually want to create a “Super Purge” Workflow that will purge a model of all views, sheets, and elements for me. More on that to come.


  • Clockwork
  • Springs
  • Dynamo

The Workflow

Use Dynamo to delete all views in Revit.

The SetDifference node is grabbing all views in the current document from the Document.Views node and removes the  user-specified view to keep in the model from the Views node. Note that Revit maintains the requirement to have at least one view within a project.

Then, the Springs.Doc.DeleteElements node deletes all views (except for the one chosen in step one).


Dynamo - Delete all Views (326 downloads)

Special Thanks

A special thanks goes out to the good folks at DynamoBIM.com for helping me out with this solution.

Coming Soon: Dynamo training in Seattle, San Francisco

We are extremely excited to announce that we will be hosting our first Dynamo training session in January 2017. The class is intended for Revit users who would like to leverage Dynamo to eliminate repetitive tasks and build complex geometry in Revit.

The class will be held in either Seattle, Bellevue, or San Francisco – location is TBD. Subscribe to our mailing list above if you would like to be notified of any updates regarding the upcoming Dynamo training session in Seattle, Washington.

Copy a Legend to Multiple Sheets in Revit

The good folks over at Boost Your BIM have posted a macro for copying a legend to multiple sheets. It works really well, but I wonder if anyone would like to take on the challenge of doing something similar in Dynamo.

public void legendOnSheets()
    Document doc = this.ActiveUIDocument.Document;
    // create list of element ids for the sheets that will get the legends
    List<ElementId> sheetIds = new List<ElementId>();
    // use SheetNumber to find the desired sheets
    // add each sheet to the list of sheet ids
    sheetIds.Add(new FilteredElementCollector(doc)
        .FirstOrDefault(q => q.SheetNumber == "A101").Id);
    sheetIds.Add(new FilteredElementCollector(doc)
        .FirstOrDefault(q => q.SheetNumber == "A102").Id);                
    sheetIds.Add(new FilteredElementCollector(doc)
        .FirstOrDefault(q => q.SheetNumber == "A103").Id);    
    // find the legend to put on the sheets
    // use ViewType.Legend and the view name to find the legend view
    Element legend = new FilteredElementCollector(doc)
        .FirstOrDefault(q => q.ViewType == ViewType.Legend && q.Name == "Legend 1");
    // create a transaction so that the document can be modified
    using (Transaction t = new Transaction(doc, "Legends on Sheets"))
        // start the transaction
        // loop through the list of sheet ids
        foreach (ElementId sheetid in sheetIds)
            // create a new viewport for the legend on each sheet
            // place the legend view at the 0,0,0 location on each sheet
            // user will need to move the legend to the desired location
            Viewport.Create(doc, sheetid, legend.Id, new XYZ(0,0,0));
        // commit the changes

Dynamo Workflow: Change your sheet parameters with one click.


If you’ve submitted drawings using Revit sheets in the past, you’ve undoubtedly run into the issue where some of your “Checked by” and “Designed by” parameters say “Author”. As far as I know, there is no easy way to change them all globally from within Revit.

I’ve created a simply Dynamo Workflow that will change all of these sheet parameters in a batch. This is a great Workflow for beginners because it is so simple and easy to follow and dissect.

In the future, I will further breakdown the workflow to help beginners understand exactly what Dynamo is doing when this Workflow is run.

Sheet-Initials.dyn.zip (116 downloads)