The Building Coder

Autodesk University Past and Future

Quick notes on the best speakers at the last event in Las Vegas, and your chance to become one of them at the next in London – Best AU Speakers in Las Vegas 2017 – CFP for Autodesk University London 2018... 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 →

Revit API Panel @ AU Las Vegas 2017

Notes on the questions and answers at the Revit API panel at Autodesk University in Las Vegas November 2017 – Description – Previous panels – Panel members – Learning objectives – Questions and answers – Recording and materials... Read more →

Modifying Material Visual Appearance

Question: How can I set the Material Render Appearance through the API? I can see there is the Autodesk.Revit.DB.Visual.Asset class, but how do I add to the list of Autodesk.Revit.DB.Visual.AssetProperty objects for a new material? Answer: The good news is that this is possible in Revit 2018.1 using the Visual Materials API. Check out Boris Shafiro's class at AU to learn about it... Read more →

Forge DevCon Highlights

A "don't miss" list of the main highlights and a heads-up on some of the biggest happenings – See into the future of Forge with partner and executive keynotes – Choose from over 50 AU classes on ways to take advantage of cloud solutions – Visit the Village, an exclusive exhibit open only to Forge DevCon attendees – Demo and witness first hand the new AR/VR Toolkit – Get to know Amazon Web Services through these classes and exhibits... Read more →

Forge DevCon in Las Vegas

My plans changed and I will not be visiting Las Vegas this year after all. The most important participants in the Revit API session that I was preparing to host are the members of the Revit development team, anyway. I very strongly urge you to not miss the chance to attend both AU and the preceding Forge developer conference, though – Forge DevCon highlights and reasons to join your peers – Sneak peek at the Forge DevCon keynotes – Visit the exclusive Forge DevCon village on Monday – Get one on one with Amazon Web Services – Decide now... Read more →

AU Recording, Books, Education and Units

I completed the presentation and recording of my presentation yesterday on Rational BIM programming using Revit and Forge at Autodesk University in Darmstadt, Germany – Rational BIM Programming recording – Pleasant walks in the Odenwald – Some of my favourite recent books – Where to continue after finishing school – New AlphaGo Zero is completely self-taught – TotalPressureLoss units... Read more →

Rational BIM Programming at AU Darmstadt

I am attending Autodesk University in Darmstadt, Germany, and putting the final touches to my presentation tomorrow on Rational BIM programming using Revit and Forge. Here are the slides and the handout document in their current state in PDF format – Slide deck – Handout document – For your convenience, here is the full text of the latter as well... Read more →

Forge DevCon at AU in Darmstadt and Las Vegas

I'll be attending the two Autodesk University conferences in Darmstadt, Germany, October 17-18, and Las Vegas, USA, November 14-16. Both of these are preceded by a Forge DevCon developer conference. You may be interested only in Revit and its API or other desktop oriented programming and asking yourself why you should care about Forge and all that cloud stuff. If so, you might want to expand your horizon and take a look at Stephen Preston's analysis and explanation in his article on 'developing for Autodesk desktop software? Here's why you should care about Forge DevCon (and Autodesk University)'... 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 →

Dockable Pane, Point Cloud, AI, BIM360, Forge, AU

Summer is here. Autodesk shut down for the first week of July. I went on a few mountain hikes. Explorations to apply artificial intelligence in construction projects are under way. World-wide Autodesk University, Forge Accelerator and BIM360 events have been announced – Forge accelerators in India and France – BIM 360 online hackathon – BIM 360 integration and partnering webinar recording – Call for add-in developers using dockable pane and point cloud engine – Forge at Autodesk University in China, Japan, Germany and Las Vegas – Deep learning analyses photos and videos of industrial sites... Read more →

Women Coders, Forge and Revit API Docs Updates

Updates on Revit 2017, Revit 2018, and above all our treasured Revit API Docs. Plus, the clock is running now on two Forge enhancements. Finally, notes on DevCon, AU, female coders and the Women Who Code conference – Revit 2018 added to Revit API Docs – Revit 2018.0.1 hot fix – Revit 2017.2.1 update – Forge scopes enforcement by May 22 – Forge View and Data API countdown – Forge DevCon call for speakers is open – Autodesk University call for proposals – Five Autodeskers speak at Women Who Code... 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 →

Events, UV Coordinates and Rooms on Level

A lot of interesting solutions were shared in the Revit API discussion forum and private email messages during my absence last week, and several exciting events are looming – Forge Accelerator in Gothenburg – AEC Hackathon in Munich – Autodesk University in London – Retrieve and map texture UV coordinates exporting geometry and material – Collect all rooms on a given level... Read more →

RevitLookup and DevDays Online API News

Unprecedented exciting information to share with you today! DevDays Online recordings are available right now, before the product launch! Furthermore, we are proud to present another little update of the revamped version of RevitLookup – Forward-looking DevDays Online API news – Revit API news for the next major release – Revit API news slide deck contents – Must do – New functionality – Revit roadmap – RevitLookup enhancements... 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 →

AU in London and Deep Learning

I took a first look at deep learning for question answering systems. Before that, I share some news on AU in Europe, thoughts on UI and innovation, and point out a useful Revit API feature for converting a Hermite spline to Bezier – Autodesk University in London – Rules of thumb for change agents – Invisible user interfaces – Conclusions from lexical analysis of top news stories – Converting a Revit Hermite spline to Bezier or NURBS – Lots of literature on deep learning... Read more →

Material Shared Parameters and ADN Xtra Labs

How to attach a shared parameter to Material elements? – Updated ADN Xtra labs to remove all deprecated API usage – A new addin that creates and populates a shared parameter to provide material information for each element – Autodesk University 2016 class materials have now been posted, including the recording of my session on connecting desktop and cloud – Linking Material elements to external database entries – Binding a shared parameter to elements – Attaching a shared parameter to Material elements – Create and populate a shared parameter ForgeMaterial – Cornelius story – cured by natural remedies... Read more →

1500 Posts, DevDay and Storing a Dictionary

Welcome to The Building Coder post number 1500! I returned safe and sound to Europe from Autodesk University 2016 in Las Vegas and recuperated from jetlag over the weekend. Today I discuss upcoming events, new simple samples to embed a Forge viewer in a web page or blog post, and strategies to embed a dictionary into the Revit database – DevDay Europe in Munich – AEC Symposium in New York – Embedding a Forge viewer – Storing a dictionary in the Revit database... Read more →

AU Day Two, IFC and Revit API Panel

The second day. I finally got to attend Angel Velez' IFC class – it always clashed with my own in previous years – followed by the product keynote and the Revit API panel discussion – Angel Velez on IFC – Product keynote – Revit API panel – Panel members – Questions and answers – Notes from previous Revit API panel sessions – Session materials... Read more →

AU Day One, Keynote and DevLab

Today Autodesk University started up for real. For me personally, the morning was occupied with booth preparation, the exciting keynote presentations and the afternoon DevLab Q&A – Autodesk University Keynote – Jeff Kowalski, CTO – Machine learning – Generative design – Virtual reality – Robotic systems – Exciting times – Guest Speakers Christian Benimana and Anna Nixon – Carl Bass, CEO – DevLab – Forge Pricing – Cl3ver, Chaos Group and V-Ray... Read more →

DevDay Conference at Autodesk University

Yesterday afternoon, I checked into the Venetian hotel for AU and the preceding DevDay conference – Desert day and night versus hotel morning – DevDay general session and Forge – AEC breakout – Revit API news, roadmap and idea station – BIM 360 – InfraWorks 360 and Civil 3D – Forge's first birthday party... Read more →

BIM@TuDa, DevDays, Forge News and More Events

I am in Darmstadt preparing the Forge and BIM presentation and hands-on workshop at Technische Universität Darmstadt, Institut für Numerische Methoden und Informatik im Bauwesen, the institute for numerical methods and computer science in the construction industry at the technical university here. Many other larger events are coming up after this – BIM@TuDa agenda – Getting started with Dynamo – Forge news – New Forge resources – Forge events and community – DevDays – Developer Day conferences and accelerators... Read more →

AU, Revit 2017.1 SDK and REX FreezeDrawing

I returned from the Munich Forge accelerator, travelling back to Switzerland by train. For ecological reasons, I prefer to avoid flying whenever I possibly can. Last Friday was the deadline for submitting my Autodesk University handout, so that kept me busy. I still need to improve it a bit, and I hope a post-deadline update is feasible. I am presenting two classes, and I have a special discount to offer you. Lots of other things are happening as well – My classes at Autodesk University – $400 AU registration discount – Revit 2017.1 SDK – REX SDK FreezeDrawing sample – Determining the height of a column... Read more →

Need to Commit Twice, Roomedit3dv3 and Forge

Lots of exciting news for today, like every day, once again on the pure Revit API, connecting the desktop and the cloud, and Autodesk Forge – Isolating an element in a newly created view requires two transactions – Forge research enquiry – Connecting desktop and cloud – Roomedit3dv3 live – Could you demo this remotely? – Connecting desktop and cloud draft handout – Table of contents... Read more →

MacroManager, Materials and Getting Started

I am answering Revit API discussion forum threads and developer cases like crazy. Instead, as usual at this time of the year, I should be focussing and putting higher priority on the exciting upcoming events. I keep promising myself to do so and stop answering cases. Then I address just one more... Here are some of the upcoming events and recent Revit API issues – Events – Forge Accelerators, DevDay, RTC and AU – Accessing the MacroManager to Delete Document Macros – Getting Started and Changing the Colour of a Wall – Getting Started and Using the Visual Studio Revit Add-In Wizard Auto-Installer... Read more →

Forge and Autodesk University Call for Proposals

In the beginning of the week, I listed my things to do next, including the most important and exciting one, attending and presenting at the Forge DevCon developer conference in San Francisco June 15-16. My to-do list also includes the Forge accelerators being held in Barcelona May 16-20 and in San Francisco June 19-24. Now the calls for proposals have opened for both Autodesk University and the Forge accelerator in San Francisco... Read more →

External Services

It's been a while since I talked about External Services. The External Services framework was initially introduced and used sparingly in the Revit 2013 MEP API. In Revit 2014, the IFC export was moved to an external service and I presented the user-defined MEP calculation sample, later moved to GitHub. The framework for handling referenced file resources is also implemented as an external service. The motivation to continue this discussion now was given by Arnošt Löbel's class SD10752 on Revit External Services at Autodesk University 2015 in Las Vegas... Read more →

AU, IoC, Banks and Not To Delete While Iterating

Autodesk University is already nearing its end. It went by so fast! I attended a bunch of brilliant classes, took notes during Cyrille Fauvel's cloud and mobile expert panel, and successfully presented my own two, the Revit API expert panel and connecting desktop and cloud. That led to a completely different topic – SpatialElementGeometryCalculator bug fix – do not delete while iterating – SpatialElementGeometryCalculator migration to Revit 2016 – IoC, the Internet of Cows – Two nice Iain Banks Quarry quotes... Read more →

AU Keynote and Revit API Panel

The first day at Autodesk University was jam-packed full and exciting as always. My main highlights were – The Keynote session – The DevHack – Arnošt Löbel's class SD10752 on Revit External Services – The Revit API panel... Read more →

DevDay@AU and Using a Custom Exporter for 2D

Several developers recently asked how to export 2D shapes through a custom exporter. I recently discussed this issue with Arnošt Löbel and below present a summary and combination of several different conversation threads on the topic. First, let me mention that I arrived safe and sound at Autodesk University. I travelled on my birthday last week, so I was upgraded to fly in style – in a sledge – sleeping in the desert – DevDay@AU... Read more →

Connecting Desktop and Cloud at AU and DevDays

I am still working on my Autodesk University preparations, and, as always, lots of Revit API cases, both from ADN and Revit discussion forum threads. Let's look at the current state of affairs regarding AU, DevDays, and two of those threads – AU 2015 – Connecting Desktop and Cloud for AEC – Regeneration invalidates all geometry – Autodesk DevDays 2015 and Cloud Accelerator Week... Read more →

Flatten All Elements to DirectShape

I am still busy preparing my presentations for Autodesk University and making slow progress due to handling too many Revit API issues in between. And blogging, as well. Here is a new cool sample contributed by Nikolay Shulga, Senior Principal Engineer in the Revit development team. In his own words – Name: Flatten – Motivation: I wanted to see whether DirectShapes could be used to lock down a Revit design – remove most intelligence, make it read-only, perhaps improve performance – Spec: converts full Revit elements into DirectShapes that hold the same shape and have the same categories – Implementation: see below – Cool API aspects: copy element’s geometry and use it elsewhere – Cool ways to use it: lock down your project; make a copy of your element for presentation/export – How it can be enhanced: the sky is the limit... Read more →

Connecting Desktop and Cloud, Room Editor Update

Last week, I listed my three Revit Technology Conference classes on connecting the desktop and the cloud, The Building Coder chatroom, and published the full detailed handout of the lab on getting started with Revit macros. This week, I published the notes from the Revit API panel Q&A. So what do we have left to talk about? Oh yes, connecting the desktop and the cloud. That is actually the most interesting of the three, and also the topic of my Autodesk University session – Connecting the desktop and the cloud – Message and Takeaway – The 2D cloud-based round-trip room editor – FireRating in the cloud – The CompHound component tracker – Dotty animated 3D assembly instructions – Conclusion... Read more →

Autodesk DevDays 2015 and CAD Trends

I am back from my vacation in Andalusia. Time to get through the email backlog and back to productive work again. No, not at all, time to get ready for the Revit Technology Conference next week, all-too-quickly followed by Autodesk University and the Autodesk DevDays 2015. Oh dear, in a hurry again. Time flies! The DevDays format is significantly changed from previous years – Autodesk DevDays 2015 with Accelerators – Kean's hsbcad Wood Construction Customer Visit – CAD Trends... Read more →

SVG, In-Memory Family, RevitLookup BoundingBox

The cloud accelerator kept me busy last week, I am working hard on the CompHound project and documenting that work on The 3D Web Coder. Besides that, I submitted several enhancements to various Revit add-in projects. Here are some of my recent activities – CompHound component tracker project development – RevitLookup displays element bounding box – SvgExport for Revit 2016 – In-memory family creation and structural stiffener migration from 2012 to 2016... Read more →

FireRating in the Cloud and RevitLookup Update

I am currently working intensely at the Autodesk Cloud Accelerator in Prague. I spent a lot of my time so far enhancing the FireRating in the Cloud sample. – FireRating in the Cloud enhancements – RevitLookup update to handle null analytical model – Retrieving all model elements... Read more →

Connecting Desktop, Cloud, Lines and Grid Segments

The call for Autodesk University proposals closes today, May 26th, and I quickly submitted my second one before the deadline falls. I also have another contribution from Magson Leone to share with you, a little helper function for calculating (unbounded) grid line intersections: Autodesk University proposal – connect desktop and cloud Intersection of Unbounded Lines Autodesk University Proposal – Connect Desktop and Cloud As said, the AU 2015 call for proposals ends today, so now is your last chance to... Read more →

Autodesk University, Q1, ADN Labs and Wizard Update

I submitted my yearly Autodesk University proposal for the Revit API expert panel. Time for you to submit yours as well. The call for proposals closes in one week – the deadline is May 26th. Besides that, here are some other things I want to point out: Titbits from the Q1 report Autodesk University proposals ADN Revit API labs training material for Revit 2016 Updated Visual Studio add-in wizards for Revit 2016 Titbits from the Q1 Report Autodesk posted a... Read more →

From Hack to App – OBJ Mesh Import to DirectShape

I already took a couple of looks at the DirectShape element in the past: DirectShape Performance and Minimum Size DirectShape versus Families, Category and Texture A much deeper investigation was prompted by Eric Boehlke of truevis.com, knowledgeable in architecture and above all in photogrammetry. Eric visited the DevHack at Autodesk University in December 2014. Together, right there and then, we put together a prototype Revit add-in that reads an OBJ file and creates a DirectShape element from it. Eric continued... Read more →

Back from The Conference Tour and Wrapping Up

Things have been a bit hectic the last couple of weeks, just like every December, what with Autodesk University and the DevDays Conferences. I am still cleaning up various open issues and looking forward to settling down into Christmas real soon now. Here are a couple of items to share from the last few days: AU 2014 classes online Family type preview images InfraWorks 360 REST API Moscow DevDays, Meetups and Hackathon Milano JavaScript Meetup I Love 3D More Wrapping... Read more →

The Revit API Panel at Autodesk University

The Revit API expert panel session took place directly after the keynote session... Read more →

Autodesk University Keynotes

Here are some notes I took this morning at the keynote presentations by Jeff Kowalski, Carl Bass and Emily Pilloton: Jeff Kowalski Carl Bass Emily Pilloton Jeff and Carl expanded Jeff Kowalski Machine learning and generative design. Identify existing components and their relationships. Tell the computer not what to do and how to design, but give it the goal we want to achieve. Computationally grow structures. Two new kinds of technology: intelligent taxonomies: build new work on all the best... Read more →

DevDays Conference at Autodesk University

Today we held the DevDay Conference at AU. Exciting stuff. Before getting to that, let me add one little Revit API exploration that I performed much later in the day, getting closer to midnight, after the ADN party; prompted by my colleague Katsuaki Takamizawa in Japan, I migrated the old Revit 2012 GeometryPartsAnalyzer add-in analysing detailed part layer geometry by splitting selected walls into parts in a temporary transaction using PartUtils.CreateParts to Revit 2015. GeometryPartsAnalyzer retrieving detailed wall layer geometry... Read more →

The DevDays 2014 Conferences Have Started

Our tour of DevDays 2014 developer conferences in 16 cities around the world from November through January has started. Our indefatigable leader Jim Quanci is already on the road, this time accompanied by Philippe Leefsma, attending all of the venues world-wide. I will 'just' be attending the DevDay conference at Autodesk University in Las Vegas and all the Western European venues: Paris, London, Gothenburg, Munich and Milano. Here is Daniel Du presenting the zero client WebGL based Autodesk View and... Read more →

Autodesk Open Source All Over – Germany and Japan

Here are some notes on Autodesk Open Source involvement from AU Germany, the Japan hackathon, and two other nice topics for today: Autodesk University Germany Japanese View and Data API hackathon projects CAD Term Translation Cool presentation gimmick Autodesk University Germany In the keynote session, Carl Bass introduced Spark, Autodesk's new 3D printer and total commitment to open source: Connected – Spark connects digital information to 3D printers in a new and streamlined way, making it easier to visualize and... Read more →

Worksharing and Duplicating Element Geometry

I had two more interesting email conversations on Revit API questions, on add-ins in a worksharing environment and duplicating element geometry for detailing and fabrication. Actually, both of these topics have been discussed in the past, so a lot of the work I did was to dig out the existing material again to make these developer partners happy. Today I therefore have an opportunity to talk about the Revit API and nothing but the Revit API again for a change,... Read more →

Autodesk View and Data API Notes and Samples

Here is a summary of my notes from three presentations on the Autodesk View and Data API given by Cyrille Fauvel and Philippe Leefsma, in the two introductory workshops at HackZurich on Friday evening, October 10 and at HackaBxl in Brussels on October 17. Philippe also presented a very nice and absolutely minimal basic viewer sample in node.js demonstrating how to implement a private web service to obtain the authorisation token without exposing your key and secret in your JavaScript... Read more →

ADVA Webinar, Free Student Software and AU

Here are pointers to some relevant non-API news items of interest: Free webinar introducing the new Autodesk View and Data API Free Autodesk software for all students everywhere AU class enrolment Free Webinar – Introducing the new Autodesk View and Data API We already held a webinar on the new Autodesk View and Data API in September. Here are the old description and full details of that, and, for the first time, we proudly present the detailed notes of the... Read more →

Events, Again, and Creating an Extrusion Roof

Jon and Scott Wilson discussed some issues creating extrusion roofs on arbitrary planes in the Revit API discussion forum in the past couple of days. One neat spin-off is a simple little external command that shows the basic use of the NewExtrusionRoof method, so I took the opportunity of adding that to The Building Coder samples. Before getting to the details of that, here is a little update on the upcoming events: October hackathons and AU Germany Autodesk University in... Read more →