How To Change Revit Units To Metric

A few new aspects of the Revit 2022 unit treatment API and ForgeTypeId usage – FixtureUnit ParameterType – Revit 2022 unit of measurement handling API in Dynamo – String values for Forge units – Unit of measurement conversion without knowing – How will we live together?... Read more →

Revit 2022 has been released. Two of import features are parameter API enhancements and born PDF export functionality – Supersede deprecated ParameterType with ForgeTypeId – Multi-target 2021 and 2022 using MSBuild – PDF export default paper format can fail – PDF export output file naming – Five beginner mistakes... Read more →

The week is coming to an end all likewise quickly... here are some compelling topics before we enter the weekend – Explaining texture UV mapping using AVF – Más Allá de Dynamo Spanish-language book – A detailed 3D model of a man cell... Read more →

Topics for today – Revit 2021 DisplayUnitType – Eliminated TBC samples deprecated API usage – Calculating the elbow centre – FireRevit identifies room location for burn down escape routes... Read more than →

The Revit update release is now available, and some insights on normalising UVs in the custom exporter – The Revit 2021.i update – Normalising UVs in custom exporter – Ready upwards your ain free VPN server... Read more →

Lots of exciting items to share – No cost for Autodesk Academy 2020 – AU voting suggestion – Modeless Revit add-ins – Virtual AEC and BIM360 hackathon – Practise non print by category – Using the new unit API to display length of multiple lines – Job opening in Developer Advocacy and Back up – Intro to synchronous versus async programming... Read more →

I am besides busy! Ouch! Here are merely a few of today'due south topics – BIM360 Question? Join Accelerator! – What language to choose for a Revit Add-In? – The Building Coder samples 2021 migration... Read more →

Unfortunately, the new unit type name functionality tin cause a trouble loading a family with a type catalogue – Unit type update affects family unit type catalogue loading – New FreeCodeCamp courses – Padlocking The Building Coder... Read more than →

Today, we discuss duplicating legend components in Python, my own non-API Python work and some undocumented utility methods – Duplicate legend component in Python – Convert latitude and longitude to metres in Python – UIFrameworkService utility methods – Exceptions should exist exceptional... Read more than →

I but helped address a wish in the Revit Idea Station. I likewise started taking a class on AI, designed for absolutely everybody – Single-click imperial and metric project unit of measurement toggle – Solution – Elements of AI – crash course for everyone – Zhonghu solo music... Read more →

Let'due south highlight a few recent threads from the Revit API give-and-take forum. Before getting to those, a quick pointer to the DevDays Online recording from last week – DevDays online presentations on Revit API updates – External command with ribbon push button sample – RevitAddinKeyNoteSystem keynote managing director – REX extensions versus Revit add-ins – Reloading Revit links from user selected binder – Converting all parameter values to metric... Read more →

Slabs created by an add-in are displayed perfectly in Revit 2015. In Revit 2016, they are not. What tin can be the trouble? These slabs are located at an exorbitant altitude from the origin. Relocating them closer to the origin resolves the trouble... Read more →

I completed the presentation and recording of my presentation yesterday on Rational BIM programming using Revit and Forge at Autodesk University in Darmstadt, Deutschland – 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 cocky-taught – TotalPressureLoss units... Read more →

Håvard Dagsvik of Symetri implemented code to automatically generate a dictionary mapping the Revit DisplayUnitType to corresponding UnitSymbolType display strings. The programmer guide describes these classes like this – UnitType – type of physical quantity to be measured, for example length or strength (UT_Length or UT_Force) – DisplayUnitType – units and display format used to format numbers as strings or convert units (i.e. DUT_METERS) – UnitSymbolType – unit of measurement symbol displayed in the formatted string representation of a number to indicate the units of the value (i.e. UST_M)... Read more →

Hither comes a quick description of the units used for the UnitWeight congenital-in parameter PHY_MATERIAL_PARAM_UNIT_WEIGHT. One example usage is to calculate the total weight of rebars in a project... Read more →

Let's veer away from the Revit API for a moment and take a look at family unit blazon catalogues, since questions on those pop upwards regularly in connection with programming as well: Programmatic blazon catalogue creation Tweaking type catalogue behaviour Type catalogue parameters Type catalogue units Programmatic Blazon Catalogue Creation Question: Is at that place any API support (function) to create type catalogues? Reply: As far as I know, there are two ways to create type catalogues, and both are programmatically attainable: Create... Read more than →

Hither are some more pointers for getting started generating family unit definitions and RFA files programmatically: Family types and parameters Imperial internal Revit database length units Programmatically generating Revit family RFA files I am writing this from the Greek island of Euboea, on which I already visited Limni or Λιμνι on the due north end a couple of years ago. This time, I am heading towards its east and south end instead, on my way to the 2nd I dearest 3D –... Read more than →

We completed the Berlin hackathon final weekend, and many other noteworthy and heady things are going on, concerning the Revit API, the 3D spider web viewers, web services and more: Berlin hackathon projects and winners Avoid unnecessary unit conversion 3D viewer news AutoCAD as a web service Collada STL ADVA export settings RvtVa3c update Berlin Hackathon Projects and Winners The Berlin hackathon completed and the winners were announced last weekend. I took notes of iv teams' project presentations: US4, us 4... Read more than →

How tin I determine the exact width of a Revit text annotation? This is the topic of the Revit API word thread on textnote width calculate minimum. We worked through a whole serial of implementation attempts, by and large suggested by Scott Wilson, who also finally suggested the one that currently seems to exist optimal and most perfect: Question: When creating a new TextNote I'thousand given the selection to give the TextNote a LineWidth Property. I understand this is the 1:1 scale... Read more →

I recently discussed how to generate unit of measurement abbreviations, both using a hard coded list and automatically generating them from the UnitSymbolType enumeration values. I implemented the CmdDutAbbreviation command in The Building Coder samples to test these abbreviations, and too enhanced information technology to brandish the Display Unit Type to Unit Types mapping that nosotros added in the meantime. Victor Chekalin, or Виктор Чекалин, reacted to this analysis and adds: Thank you for your investigation. But... In that location is a big 'but' :-)... Read more than →

It is getting rather cold and wet and dreary exterior now, so I spent some time answering the post-obit excellently documented developer query on relating the coordinates of a linked file with its host. But equally I was virtually to publish information technology, Kon raised the very aforementioned issue in a comment on the recent discussion on accessing private elements in linked projects: "When I effort to chronicle the 'internal' XYZ LocationPoint of the linked certificate to the primary model, they... Read more →

Yesterday, we looked at unit abbreviations and some other aspects of the new Revit 2014 Unit API. I mentioned that one might exist able to utilise the FormatUtils.Format or UnitFormatUtils.Format methods to generate a string representation of a given numeric value, extract a unit of measurement abbreviation from it, and that I was not looking further at that option, defective a UnitType to feed it with, only having a DisplayUnitType to work with. That led me to wonder whether there might be... Read more →

Today, nosotros look at determining the units for a given parameter, and specifically providing a suitable unit abridgement for information technology. The Revit 2014 API introduced a new Unit API with a large number of enhancements to complete and simplify unit of measurement treatment bug, and I have not yet explored all of them in depth. Hither is the overview of information technology from What's New in the Revit 2014 API: Units API The API for Units in Revit has been expanded and inverse.... Read more →

Here are a couple of contempo interesting questions that came up: Curve Length versus ApproximateLength Potential SetRaiseWithoutDelay workaround Unit treatment improvements Self-contained RevitPythonShell deployment Bend Length versus ApproximateLength Question: What is the difference between the Curve Length and ApproximateLength properties, please? I am using them to obtain an arc wall length. Equally far every bit I tin tell, the result is exactly the same, and so which one should I ordinarily use? Answer: All Revit geometry curves are parameterised. A bend is... Read more →

I started migrating The Building Coder samples to Revit 2014. Funnily enough, on the exact aforementioned date as last year for the previous version. The changes are very small this time around. Furthermore, I am well prepared, since I recently intentionally eliminated all compiler warnings and deprecated calls compiling the code for Revit 2013. Outset, however, a movie or three from my ski bout concluding weekend over Il Chapütschin (3386 m) and La Sella (3584 m) in the Swiss Engadin.... Read more →

Here is a typical question from a Revit API newbie that prompts me to reiterate some of import basic beginner data on units and the RevitLookup tool for exploring the Revit database: Question: How tin can I retrieve the length and mass units from a Revit certificate? Answer: The internal Revit database length unit of measurement is e'er purple feet. That cannot be changed, so there is you answer for that. Similarly, the internal database unit for weight is kg, as far every bit I... Read more →

Here is a Revit 2013 update of the Revit 2011 unit conversion utility, originally posted and described for Revit 2010, by Harry Mattison. In his own words: I was looking at the smashing unit conversion utility and created a new version upgraded to Revit 2013 that I idea y'all readers might relish. I ran into one issue that required a code enhancement to take hold of an exception thrown by many parameters, such as HVAC_Temperature, HVAC_Slope, etc. The remainder of the code... Read more →

Happy New year's day of the Dragon! Elevation: Happy New year's day! Bottom: Lucky Peace! The Chinese dragon is the symbol of emperor and ability. Thanks to Joe Ye and nipic.com for the image and translation! Besides programming Revit and climbing mountains, I besides like climbing copse: Returning to the Revit API, the topic of units is a recurring theme, and here information technology is over again rearing its cute head in the context of bespeak cloud data access: Question: I am working on... Read more →

AU went very well for me, and I think this was the i I liked most of all so far, to my ain surprise. Now I am already at the next briefing in Moscow, from where I keep to Tel Aviv tomorrow. December is always my monster travelling month, and I never go to prepare for Christmas or savor the dark and cosy celebration of Appearance. Merely I actually did have fun and enjoy AU in Las Vegas. Sunday morning... Read more →

To first off this week, here is a pretty useless question that still seems to be of great interest to many people: Question: Odd question perhaps, but why does Revit internally work in imperial units? Respond: I practise not detect your question odd at all; many others wonder that every bit well, I am sure. Briefly, I would hazard that the answer is simply that this is a religious question, or a question of taste, or historically evolved. Does that satisfy... Read more →

Quite a while back, I published a unit conversion utility for Revit 2010. Allow's take a fresh look at that, and also at a couple of new Revit blogs. We discussed a couple of other bug related to units since and so, such as the unit of measurement suffix and ProjectUnit SDK sample and a wait at voltage units. The latter as well includes an overview of another unit related posts. Anyway, Rod Howarth picked upwards on the unit converter utility and ported... Read more →

I returned from a beautiful little mount hike to the lake, laissez passer and mountain of Piz Lunghin. One very special aspect of this place is that it is Europe'due south one and only triple watershed, with rivers flowing all the way to the Due north Ocean, Blackness Sea and Mediterranean. Some other special attribute of my hike was spending the dark outside on the mountain, with a wonderful articulate sky and the almost full moon in sub-zero temperatures (Celsius). Returning over again to... Read more than →

We are even so on the Pantagruel, currently sailing from Kingdom of norway to the w coast of Sweden. Here is a view from Preikestolen down into Lysefjord, where we went for a hike before leaving the Stavanger expanse: Here are some of usa on deck the kickoff day: That was earlier getting out onto the open up sea and into higher winds, causing us to feel a lot less chirpy: The conditions has been pleasant all the time, only the wind is very... Read more →

I am still in Thailand, flying abode this evening. Still, I had time to go through some email today, and picked up lots of interesting tidbits. Allow me start with this one: Question: When I use the sample code from the Revit API help file RevitAPI.chm to create a NewFootPrintRoof, the gradient is set to 0.5 radians. This results in a slope of 26.57 degrees for the newly created roof. This value is incorrect, even so, since 0.v radian equals about 28.65... Read more →

The last day earlier DevCamp! I am happy to note that the articles on grabbing a webcam epitome and displaying information technology on a Revit chemical element face up were and so popular ... I will be demonstrating that and other samples using the Idling event and modeless dialogues at DevCamp. Meanwhile, hither is an interesting footling item that my colleagues Jorgen Dahl and Martin Schmid (who by the way published a book on AutoCAD MEP 2010) dug upwards, another nugget of data on... Read more →

The Western European DevDays conference tour has begun, and I volition be presenting and travelling all calendar week, leaving very picayune fourth dimension to spend blogging or responding to comments. I visited relatives in London the preceding weekend, and took some time to write and mail this earlier the real crisis began. Several previous posts deal with various aspects of unit handling in the Revit API: Units. Formatting unit of measurement strings. Unit types and format options. Unit conversion. Unit Suffix and the ProjectUnit... Read more than →

Later a wonderful weekend in the Swiss alps climbing the Diechterhorn, here is a follow-upwardly explanation by Jeremy Sawicki of Autodesk on the difference between DisplayUnitType and UnitSymbolType in continuation of our last give-and-take on the unit suffix. Question: What is the exact difference between DisplayUnitType and UnitSymbolType, please? For instance, the default project unit of measurement settings on my arrangement for a length are DUT_Millimetres and UST_None ... I wonder what exactly that means? As well, can you suggest a style to... Read more →

We delved into diverse aspects of units in several previous posts: Basics on units. Formatting unit strings. Unit types and format options. Unit of measurement conversion. And still the topic is non exhausted. Hither is a new point to consider: Question: Is there a fashion to retrieve the unit for a parameter? I tin read a parameter'due south value and its Brandish Unit Type simply not the unit'south symbol, the brandish cord suffix used to represent the unit in the user interface. For... Read more →

Question: I need to get the string value displayed in the Revit user interface for some parameters whose values only contain an integer value, such equally: Wall Role: the API returns an integer value, whereas the UI displays "Outside". Wrapping at Inserts: once more, the API returns an integer value, whereas the UI displays "Both". Is there a general mode to get a mapping between the integer values and the display strings for all such items in Revit? Respond: For a... Read more →

Here is a useful and instructive reader-contributed unit conversion utility which has been submitted for addition to the official Revit SDK samples. Nosotros discussed the Revit unit handling in ane of the very starting time posts to this web log. Ane primary signal discussed there is the fact that Revit internally uses a fixed set up of internal database units which cannot be changed. For example, all lengths are measured in feet. The post mentions the elementary unit of measurement converter provided past the MidasLink... Read more →

Now let us get back to really practical things again, afterwards the applied notes on impractical things, and the more or less practical boot camp note. Question: I have a CurveArray object containing data defined in inches. Now I demand to scale it to feet in order to feed it into a Revit API method to create an extrusion. How tin I perform this scaling operation? I would obviously prefer not having to rebuild the entire CurveArray. How does one... Read more than →

A couple of cases dealing with issues apropos pocket-size dimensions in Revit were recently raised by Toste Wallmark of Tecton Limited and Henrik Bengtsson of Lindab: Minimal length required when calling NewLineBound. Minimal possible family component dimension. Minimum scaling factor for note family symbol. Minimal Length in NewLineBound Question: I take discovered that NewLineBound throws System.ArgumentException "Value does not fall within the expected range" when the values are shut or very shut. Is that an expected behaviour in this instance?... Read more →

This is the final Verona installment, discussing the last remaining topic raised in the Revit API training in Verona the calendar week earlier terminal, on creating new axle types and inserting axle instances through the API. Similar to the exploration concerning columns, nosotros explored the post-obit topics: Retrieving all matching family elements in current document in order to bank check whether the family we are interested in is loaded. Exploring the results of using a FamilyFilter. Loading a new family, if non... Read more →

Here I go along the discussion of another of the topics that were raised in the Revit API training in Verona final week, on creating new column types and inserting column instances through the API. We explored the following topics: Retrieving all family elements in current document in order to check whether the family nosotros are interested in is loaded. Exploring the results of using a FamilyFilter. Loading a new family, if non already nowadays. Creating a new family symbol, i.e.... Read more →

Here I continue the discussion of i of the topics that were raised in the Revit API training in Verona concluding week. We tin combine the ii give-and-take strands analysing wall areas and compound wall layers to summate the volumes of each individual layer in a compound wall. In our initial thought for implementing this, nosotros thought of making utilise of the wall area that we calculated ourselves from the appropriate confront of the wall'due south solid geometry. Whatever method we... Read more →

Here is a question from Matt Mason and some exhaustive research results past Saikat Bhattacharya of Autodesk on unit types and their format options. To provide some context, UnitType is an enumeration listing all the unit of measurement types supported past Revit. The FormatOptions class is used to manage data for the ProjectUnit.FormatOptions property, which returns a FormatOptions instance containing the user's current projection unit settings for each UnitType queried. Through the project units and the format options management, each unit blazon... Read more →

What methods tin I use to create a properly formatted unit of measurement string according to the project units? If the value you are formatting resides in a Revit parameter, the answer is simple and a complete solution immediately provided past the Revit API. On one hand, the Parameter class provides the following public methods to read and write its parameter value: AsDouble: Provides admission to the double precision number inside the parameter. AsElementId: Provides access to the element id stored inside... Read more →

In the previous postal service, we noted that the area parameter for a wall had a numerical value of 283.65 on one hand, but a string representation of '26.352 chiliad²' on the other. The reason for these 2 different values is that Revit internally works with a fixed ready of database units for different measurement types. These internal database units cannot be changed. All raw database values obtained from attributes volition always be returned and expected in database units. Some of... Read more →