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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<title>IfcOpenShell - The open source IFC toolkit and geometry engine</title>
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<!--
// Preserved for posterity from the original website. This joke never gets old.
Q: What's with the name? Ifc Opens Hell?
A: No, you're not reading it correctly. An IfcOpenShell is one of the ways geometry can be described inside an Ifc file. Since the name reflects on the Ifc part, the open source part and the geometry part of the project, we figured we'd pick this as our name. PS: No, we're not called openIfcShell either
Q: Ok, so how do you make money with this?
A: We don't. Are you? How about sharing some of the pie or help out with development or testing!
-->
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<h1 class="wow fadeInUp delay-0-2s"> IfcOpenShell </h1>
<h2 class="up-title wow fadeInUp delay-0-4s"> The open source IFC toolkit <br> and geometry engine </h2>
<p class="wow fadeInUp delay-0-6s">
IfcOpenShell helps you develop digital platforms for the built environment. <br>
Read, write, and modify Building Information Models using IFC, <br>
a diverse digital language from design to construction and beyond.
</p>
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<h3>
A library you can rely on
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<p>
Developed by a community of hundreds of developers and trusted to deliver many AEC technologies that power our industry.
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Any technology stack
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Build with Windows, Mac, or Linux, in C++ or Python. Deploy headless server tools, or author IFC natively with a rich graphical interface.
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All schemas and formats
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Support IFC2X3, IFC4, IFC4X3, or load your own at run-time. Read and write IFC-SPF, IFCJSON, IFCXML, IFCHDF5, and IFCSQL.
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Native IFC authoring API
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High level API for hundreds of tasks. Perform complex authoring like copying objects, cost calculation, or 4D simulation with one line of code.
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Robust geometry
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Convert parametric geometry into explicit geometry for any CAD system from booleans to complex sweeps.
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Generate and annotate 2D drawings from 3D geometry with ease. Preserve drawing semantics and link model data to and from drawing symbols.
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Ecosystem of tools
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Clash detection, model comparison, and conversion to over 10 other formats. Integrate with technologies like IDS, BCF, and bSDD, and more.
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Easy to use
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Extensive documentation, user guides, academic courses, and a vibrant user community to help you begin your journey.
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<h3> Let's get started </h3>
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<div class="item" >
<pre>
<span class="orange-color"># Load and edit a wall name</span>
import <span class="green-color">ifcopenshell</span>
model = ifcopenshell.<span class="green-color">open</span>('model.ifc')
walls = model.<span class="green-color">by_type</span>('IfcWall')
walls[0].Name = 'My wall'
model.<span class="green-color">write</span>('updated-model.ifc')
</pre>
</div>
<div class="item" >
<pre>
<span class="orange-color"># Properties, type, and location of a door</span>
import <span class="green-color">ifcopenshell.util.element</span> as <span class="green-color">util</span>
door = model.<span class="green-color">by_type</span>("IfcDoor")[0]
prop_sets = util.<span class="green-color">get_psets</span>(door)
door_type = util.<span class="green-color">get_type</span>(door)
location = util.<span class="green-color">get_container</span>(door)
</pre>
</div>
<div class="item" >
<pre>
<span class="orange-color"># Create a wall on the site</span>
import <span class="green-color">ifcopenshell.api.root</span>
import <span class="green-color">ifcopenshell.api.spatial</span>
site = <span class="green-color">ifcopenshell.api.root.create_entity</span>(
model, ifc_class="IfcSite")
wall = <span class="green-color">ifcopenshell.api.root.create_entity</span>(
model, ifc_class="IfcWall")
<span class="green-color">ifcopenshell.api.spatial.assign_container</span>(
model, relating_structure=site, products=[wall])
</pre>
</div>
</div>
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<div class="owl-carousel owl-theme">
<div class="item" >
<pre>
// C++ example 1
</pre>
</div>
<div class="item" >
<pre>
// C++ example 2
</pre>
</div>
<div class="item" >
<pre>
// C++ example 3
</pre>
</div>
</div>
</div>
<div class="tabContent">
<div class="owl-carousel owl-theme">
<div class="item" >
<pre>
<span class="orange-color"># Convert a model to different formats</span>
$ <span class="green-color">IfcConvert</span> model.ifc model.glb
<span class="orange-color"># Multicore processing</span>
$ <span class="green-color">IfcConvert</span> model.ifc model.dae
<span class="orange-color"># Filters and operations</span>
$ <span class="green-color">IfcConvert</span> --model-offset "10000;10000;0" \
model.ifc model.dae
</pre>
</div>
<div class="item" >
<pre>
<span class="orange-color"># Check BIM requirements</span>
$ <span class="green-color">ifctester</span> specs.ids model.ifc
<span class="orange-color"># Produce reports</span>
$ <span class="green-color">ifctester</span> -r Html -o out.html test.ids bldg.ifc
</pre>
</div>
<div class="item" >
<pre>
<span class="orange-color"># Compare models</span>
$ <span class="green-color">ifcdiff</span> old.ifc new.ifc
<span class="orange-color"># Schedule objects in a spreadsheet</span>
$ <span class="green-color">ifccsv</span> -i input.ifc -c out.csv -q ".IfcWall"
<span class="orange-color"># Clash detection</span>
$ <span class="green-color">ifcclash</span> -o results.json clashsets.json
</pre>
</div>
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<h4> Choose your hammer </h4>
<ul class="choose-list">
<li>
<a class="tab whiteborder">
I know Python
</a>
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I know C++
</a>
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I'm a CLI whiz
</a>
</li>
</ul>
<p>
Learn more in our <a href="https://docs.ifcopenshell.org"><span>documentation</span>.</a>
</p>
</div>
</div>
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Cyril Waechter BIM Insight
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BIMvoice
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