The Building Coder

.NET Assembly and DirectShape Libraries

Two illuminating discussions on direct shapes, working with direct shape libraries, and handling Revit and third-party .NET assembly DLLs – DirectShapeType and AddExternallyTaggedGeometry – Referencing and avoiding conflict with Revit DLLs – SSSVG interactive SVG reference – Coding with eyes only... Read more →

Exploring ARM, ChatGPT, Nairobi and the TSP

I am still in Nairobi, Kenya, getting to know the lay of the land and team here, as well as setting up my new computer; meanwhile, OpenAI ChatGPT is making global waves and first explorative steps are being made to use it with the Revit API – Outings in Nairobi – ChatGPT in Kiswahili – for music and poetry mimicry – for Revit API – for Revit interaction – teaching about the birds and the bees – limitations and improvement – acrostic poem – VS2022 on MacBook Pro M1 with Parallels – Chasing the travelling salesman... Read more →

Compiling the Revit 2023 SDK Samples

I log my work compiling the new Revit 2023 SDK and setting up RvtSamples to load the external commands – Update the RevitSdkSamples repo – Set the Revit API references – Eliminate processor architecture mismatch warning – Set up RvtSamples – DatumsModification – ContextualAnalyticalModel – CivilAlignments... Read more →

RevitTemplates Update 1.7.0

Feedback appreciated on RevitTemplates update 1.7.0... Read more →

Installer Asset, FormIt and Quaternions

Notes on FormIt and its JavaScript API, the new automatically generated RevitLookup MSI installer asset, transformations and quaternions – FormIt API and geographical context – RevitLookup MSI installer asset – Transform and quaternions... Read more →

Revit 2022.1 SDK, RevitLookup Build and Install

Exciting news with a lot of changes to RevitLookup and The Building Coder samples – Revit 2022.1 SDK released – WallCrossSection vs. WallCrossSectionDefinition – RevitLookup build and install – Bye-bye lookup builds – The Building Coder samples revamped – Copy as HTML update – Image cleanup and a robot arm... Read more →

DLL as Resource and Multi-Version Add-Ins

Lots of options to implement multi-version add-ins and examples showing how to store DLL dependencies in your add-in resources – Migration assistant rocks – ExportCncFab 2022 – Multi-version Revit add-in – Deploying a DLL file as a resource... Read more →

Snooping Parts, C# Templates and Python Topics

A neat RevitLookup enhancement, powerful new Revit add-in template, and a couple of Python related topics – RevitLookup handles PartUtils – Nice3point Revit add-in C# template – IronPython hosting in C# add-in – Python 3, CPython, pyRevit and Dynamo... Read more →

Installer, List of Failures, Adjacent Rooms and Walls

We discuss enhancements to RevitLookup, a list of all built-in Revit failures, and a neat utility to determine all room-wall adjacencies – Adjacent rooms and walls – List of all built-in failures – Recent RevitLookup updates – RevitLookup installation... Read more →

Revit 2022 SDK and The Building Coder Samples

The Revit 2022 SDK is now available for download from the Revit Developer Centre autodesk.com/developrevit. I logged my experiences installing it, setting up RvtSamples, loading the SDK external commands, and migrating The Building Coder samples to the new release – First the logs – Revit 2022 SDK warnings – Setting up RvtSamples – The Building Coder samples migration – ParameterType and ForgeTypeId – O'Reilly answers... Read more →

Naughty Updaters, DIY Add-In Manifest, GD, AI, etc.

Lots of exciting discussion going on in the Revit API discussion forum and elsewhere – No redemption for naughty updaters – DIY Add-in manifest – Generative design in C# – AI identifies and classifies BIM elements in 2D sketch... Read more →

Addin File, Learning Python and IFC.js

Today, we look at the add-in manifest, learning Python and Dynamo, the status of the Revit Python shell and a useful stand-alone IFC viewer – Personalised add-in manifest – Learning Python and Dynamo – Quo vadis, RevitPythonShell? – IFC.js... Read more →

Preview, Code Signing and Element Type Predicates

A few interesting threads from the Revit API discussion forum and AI news – Revit add-in code signing YAML – Preview control rotates model – Element type predicates – AI ethics... Read more →

Setting up RvtSamples for Revit 2021

Another busy week so far – Loading all Revit 2021 SDK samples – Loading The Building Coder samples and labs – What database is best for Revit data?... Read more →

RevitLookup 2021 with Multi-Release Support

I hope you are happy and healthy and enjoyed your Easter eggs! During the holiday, I updated RevitLookup for Revit 2021, and Harry Mattison added his multi-release building enhancements into the main solution as well – Revit 2021 add-ins require .NET 4.8 – RevitLookup flat migration to Revit 2021 – Support for multi-release building... Read more →

DA4R, FindInserts, Deployment and SplitButton

So many interesting things going on in the Revit API discussion forum. Also, the newest DA4R recording is now available online – Forge Design Automation API for Revit recording – Design Automation for Revit supports IFC – What does the FindInserts includeShadows flag do? – Easiest solution to deploy add-in – Always show the same button in SplitButton... Read more →

DLL Conflicts and Replicating Schedule Sort Order

Today I highlight the following topics – I caved in to smartphone – Handling third party library DLL conflicts – Replicating schedule sort order... Read more →

Generating Graphics and Collecting Assets

Here are some relevant topics for today – Can you avoid generating graphics? – Read all thermal and physical assets – Collection of old add-in managers – Compiling an add-in without Revit installed – Xeokit 3D BIM and CAD viewer – Software development manager job opportunity... Read more →

Secret Series 2, CAD Link Status and DWG Blocks

Joshua Lumley shares video #2 in his secret series, access to the CAD link status string and block in DWG export – Secrets of Revit API coding part 2 – Video 2 in the secret series – Getting CAD link status – Making blocks in Revit DWG export... Read more →

TestRunner – Run Unit Tests in Revit

A new Revit add-in unit testing framework, a short note on support assembly locations, and an article on importing PDF files – Revit.TestRunner runs unit tests in Revit – Getting started with TestRunner – Unconfusing support assemblies – Importing PDFs made easy... Read more →

Rapid Prototyping, Testing and Deployment

The pyRevit rapid application development environment can be used for the entire add-in lifecycle, supporting rapid debugging, testing and deployment as well. I successfully implemented invoking an external command defined in a stand-alone Revit plugin assembly from pyRevit! It's proving extremely useful... Read more →

Close Doc and Zero Doc RvtSamples

Still getting up to speed with Revit 2020 and my new virtual machine that I set up for it... First, however, an interesting adaptation of RvtSamples to run in zero document state – RvtSamples adapted for zero document state – Migrating The Building Coder samples to Revit 2020 – Installing PowerTools Copy HTML Markup – Using PostCommand to close document... Read more →

What's New in the Revit 2020 API

The Revit 2020 API includes exciting enhancements for add-in developers, including numerous developer wishes and requests that have now been explicitly addressed – Information sources – Installation and migration from previous versions – What's new in previous versions – Detailed TOC of major changes and renovations – API Changes – API Additions... Read more →

The Revit 2020 FCS, API and SDK

Revit 2020 has been released, and we go through the same procedure as every year, looking at the DevDays online presentations highlighting the API news, getting the system requirements set up, installing, compiling the Revit SDK samples and setting up RvtSamples to load them – Revit 2020 first customer shipment – Revit 2020 DevDays Online – Setting up Windows 10 – Installing Revit 2020 and the new SDK – Visual Studio and .NET 4.7 – Compiling the Revit 2020 SDK samples – Setting up RvtSamples... Read more →

Revit Add-In Locations and BIM360 EU

I am just getting ready to leave for Darmstadt, for the Forge DevCon and German Autodesk University. Here are some quick recent topics I want to share before jumping on the train – BIM 360 Docs API change for European data centre access – Revit add-in locations – Autodesk AppStore bundle format – Juli Zeh über das Turbo-Ich – YouTube video subtitles and auto-translation... Read more →

Multi-Targeting Revit Versions, CAD Terms, Textures

Here comes another solution for efficiently compiling add-ins for multiple Revit version targets from one single code base, a note on resources for CAD term databases for consistent terminology translation, and a discussion on accessing custom texture maps in Forge and Revit – Multi-targeting Revit versions using TargetFrameworks – Further enhancement using the CSPROJ Import tag – CAD terminology resources for consistent translation – Showing a custom Revit texture map in the Forge Viewer... Read more →

Installing the Revit 2019 SDK April Update

After the significant struggle I had to compile the initial release of the Revit 2019 SDK samples and set up RvtSamples 2019, I am happy to report that installing and compiling the Revit 2019 SDK April 27 update is a lot easier – Downloading the April 27 SDK update – Initial compilation – 41 warnings – Processor architecture mismatch suppressed – 5 warnings – Update reference to RevitAPISteel.dll – 3 warnings – Setting up RvtSamples – Updated RvtSamples download... Read more →

Compiling the Revit 2019 SDK Samples

I installed Revit 2019 and compiled the Revit 2019 SDK. That was quite a struggle – Installing Revit 2019 – Installing the Revit 2019 SDK – Installing the .NET Framework 4.7 – Compiling the Revit 2019 SDK samples – Processor architecture mismatch warnings – DimensionLeaderEnd OutputPath missing – Numerous Revit API assembly reference conflicts – SampleCommandsSteelElements lacks components – AppearanceAssetEditing using deprecated API... Read more →

Pipe Fitting K Factor, Archi+Lab and Installer

Two recent Revit MEP related cases brought up some new information on the pipe K factor table and custom calculations for pipe fittings, the Forge DevCon class recordings are now available, and I discovered Konrad Sobon's wonderful archi+lab Revit API blog, which helps resolve an installation and setup issue – Pipe K factor table – Custom K factor calculation for pipe fittings – Dynamo code to change loss coefficient – Forge DevCon 2017 class recordings – Archi+Lab – Revit add-in installer and buttons... Read more →

Forge, Installed Version, Move Group, Name Filter

A biggish post rather late in the week... still answering too many cases – Forge for AEC demos and sample code – Determining the starting view – Detecting installed Revit version – Detecting installed C3D version – Moving items inside a detail group – Filtering for family instances and types by family name... Read more →

Revit versus Forge, Ids and Add-In Installation

Forge versus Revit programming – Access Revit BIM data and element ids from BIM360 – Unique IDs for Forge viewer elements – Edit and export Revit properties in Forge – Upcoming Forge accelerators – Updated Visual Studio Revit add-in wizard installation – Question on RevitLookup installation – RevitLookup cannot snoop everything... Read more →

Revit 2018 Visual Studio .NET Add-in Wizards

I updated the Visual Studio Revit C# and VB add-in templates for Revit 2018. They enable you to create a new C# or VB Revit add-in in Visual Studio with one single click on File > New > Project... > Visual Basic/Visual C# > Revit 2018 Addin and define a complete skeleton Revit add-in, ready to immediately compile and run, including an add-in manifest file, external application and external command. Just hit F5 to start debugging; the add-in manifest is installed, Revit launched and the command is immediately available... Read more →

RevitLookup 2018 and Forge DevCon CFP

Revit 2018 has been released. The Revit 2018 SDK is available from the Revit Developer Centre. I migrated RevitLookup and The Building Coder samples. Finally, the call for proposals has opened for the Forge DevCon at Autodesk University in Las Vegas – Revit 2018 Software Developers Kit – RevitLookup 2018 – The Building Coder samples 2018 – Forge DevCon call for proposals... Read more →

Add-In Templates Supporting Edit and Continue

Last week, I presented Andrey Bushman's new Visual Studio templates for Revit add-ins. Furthermore, we discussed many aspects of edit and continue in the past, including the solution to use the Add-in Manager. These two topics have now met and united, because Andrey added support for that and a bunch of other new functionality in his commit... Read more →

TextNote Rotation, DevCon, TensorFlow and Keras

The Forge DevCon developer conference has been happily united with Autodesk University, text note rotation is easy, and I continued my deep learning exploration for implementing a Revit API question answering system – Forge DevCon at AU – Setting TextNote rotation – TensorFlow and Keras – Updating restricted Python packages – Rules of machine learning... Read more →

NuGet Revit API Package

Most of the work of the year has been done, and it is time to settle down and clear out for the new. Tomorrow is the winter solstice, followed by Christmas and Yuletide, ending with the Twelfth Night. For me, this is a time of retreat, calm, reflection, and renewal of energy. Today brings a nice gift from Andrey Bushman – NuGet Revit API package – RevitLookup using the NuGet Revit API package – Creating a NuGet package from assembly DLLs – More NuGet packages... Read more →

Trusted Signature Motivation and Fishing

Topics for today – How does code signing of Revit add-ins increase security? – What happened to LoadCaseArray? – How and where to search for help on a Revit API question? – Dynamo 1.1 Update... Read more →

Visual Studio 2015 Revit 2017 Add-in Wizards

I updated the Visual Studio Revit C# and VB add-in wizards for Revit 2017. They enable you to create a new C# or VB Revit add-in in Visual Studio with one single click on File > New > Project... > Installed > Templates > Visual Basic/Visual C# > Revit 2017 Addin. The wizard creates a complete Revit add-in skeleton, ready to immediately compile and run. Just hit F5 to start debugging; the add-in manifest is automatically created, copied to the proper location, Revit launched in the debugger, and your shiny new add-in is available in the external tools menu... Read more →

The Building Coder Samples 2017

Last night, I migrated The Building Coder samples to Revit 2017 – Flat Migration – Updated RvtSamples Include File – Automatic Transaction Mode is Obsolete – Obsolete Plane Constructors and NewPlane Methods – Obsolete NewPlane Method Taking a CurveArray Argument – Replace View.SetVisibility by SetCategoryHidden – Use DirectShape ApplicationId and ApplicationDataId – All Obsolete Revit API Usage Eliminated... Read more →

Revit 2017, RevitLookup and SDK Samples

Revit 2017 was released yesterday. Here is the official Autodesk statement stating that Revit 2017 advances BIM for the future of designing buildings. I downloaded and installed my version from the Autodesk Revit family free trial web site. Let's look at what I did to install and first add-in compilation experiences – Uninstalling prior versions and cleaning the registry – Dummy API assembly folder for compiling samples – Resolving hiccups compiling Revit 2017 SDK samples – RevitLookup for Revit 2017... Read more →

.NET Runtime Security Blocks External Command

Here is a Revit API add-in installation issue that came up in various forms in the past and now again in the context of Windows 10 configuration: I have a plugin that has been working fine for all pre-Windows 10 platforms. Under Win10, the DLL loads into Revit.exe correctly. The add-in manifest contents are displayed correctly in the Revit UI. When I issue the command, however, nothing happens... Read more →

BIM 360 Docs, Add-In Folders, Stallman and Abc

I am going to the University of Bern this afternoon to listen to Richard Stallman speak For A Free Digital Society. Here are some other recent and not-so-recent topics – BIM 360 Docs – Richard Stallman in Switzerland – Is the abc conjecture proven? – Add-In Folders – BIM 360 Docs is the new Autodesk platform for construction document management. It provides web services to ensure that the entire project team is always building from the correct version of documents, plans, and models... Read more →

REX Add-In Development and Migration

It's been a while since I talked about REX. Some old dedicated posts include – The REX SDK – Extensions for Revit 2012 – REX Content Generator. More recent mentions occur in my discussion of a framing cross section analyser with and without REX and its migration to Revit 2015. Now the time has come for another look... Read more →

Revit Add-In Wizard GitHub Installer

I recently mentioned the unrestricted VendorId in Revit 2016, and pointed out that I would like to update the Visual Studio Revit add-in wizards accordingly. I now went ahead and did so, adding a couple of other enhancements as well along the way – oh, and I did some work on putting my personal calendar online, as well: Sharing a calendar via GCal, Google API, and GitHub Pages. Visual Studio Revit add-in wizards on GitHub. Updated VendorId tag value. Wizard... Read more →

Batch Processing, DWFx Links and Future-Proofing

The never-ending stream of Revit API topics continues. Today, let's look at: Unrestricted VendorId. Retrieving DWFx links. Batch processing Revit documents. Future-proofing The Building Coder samples. Recent Revit API AEC DevBlog posts: Delete custom family parameter. JoinGeometryUtils.JoinGeometry for walls and columns. Reading gross and rentable area elements. Unrestricted VendorId In the past, we recommended using an Autodesk registered developer symbol or RDS as your vendor id, stored in the add-in manifest VendorId tag (starting from the Revit 2012 extensible storage... Read more →

CopyElements, Revit 2016 Scalability, Python and Ruby

Here are a bunch of infos on and updates for Revit 2016, as well as some important hints on the use of the ElementTransformUtils.CopyElements method: CopyElements view argument is for 2D only Revit 2016 scalability enhancements Revit 2016 Python shell Revit 2016 Ruby shell RevitLookup for Revit 2016 CopyElements View Argument is for 2D only You should only use the ElementTransformUtils.CopyElements views argument when working with view dependent elements, i.e., 2D elements. This was pointed out by Arnošt Löbel in... Read more →

Add-in Migration to Revit 2016 and Updated Wizards

I updated my Visual Studio Revit C# and VB add-in wizards for Revit 2016. Before presenting them, a quick important note on how to approach resolving issues that you may encounter migrating your existing add-ins: Please read What's New in the Revit 2016 API! Revit add-in wizards for Revit 2016 Revit add-in wizard customisation Revit add-in wizard usage Download and installation Please Read What's New in the Revit 2016 API! Every major Revit API release so far enhanced the existing... Read more →

Autodesk View and Data API

I was away for a few days last week in the beautiful Italian speaking southern part of Switzerland. Back again, as usual, I am confronted with a host of Revit API issues. The most important event last week for me by far, though, was the release of the Autodesk View and Data API. Some of my Autodesk University related tasks and upcoming meetup events are also related to that: Autodesk View and Data API View and Data API presentations Autodesk... Read more →

Exchange Apps Webinar Recording and Resources

As you certainly know by now, the Autodesk Exchange Stores provide an efficient means to showcase and distribute your applications addressing a large world-wide audience. Furthermore, it is very easy. As krispy just said in this Revit API forum thread on creating an installer for a Revit application, "You can just zip up the files they require (dll, addin, etc.) and upload that... the exchange app team will create the installer for you. They are pretty good with telling you... Read more →

Debugging Revit 2014 API with Visual Studio 2013

The officially supported development platforms for Revit add-ins are Microsoft Visual Studio 2010 and Microsoft Visual Studio 2010 Express Edition. The important factor is really only the .NET environment, Microsoft .NET Framework 4.0. Of course, you can also use the built-in SharpDevelop development macro environment. This information comes directly from the horse's mouth, i.e. the Revit 2014 API Developers Guide – happily, back online again – section on requirements. The Revit Python Shell and Revit Ruby Shell, based on IronPython... Read more →