17 minute read
Autodesk Infrastructure Modeler 2012
Autodesk Infrastructure Modeler
Autodesk’s new conceptual design tool enables planners and engineers to consider geospatial, civil and architectural data together in an interactive 3D environment.
by greg corke
Autodesk has a huge portfolio for visualisation when some will be rejectof Architecture, Engineering, ed out of hand. Construction (AEC) software, At these early stages of design you need to but most of its products are be able to explore different alternatives, focused on the detailed design phase. They quickly, and present your ideas in an interacare about creating dimensionally accurate tive 3D environment that can be easily underdrawings and models, and stood by non-technical users. products like AutoCAD, Revit and AutoCAD Civil 3D do this very well. For conceptual design Autodesk Infrastructure Modeler 2012 Autodesk Infrastructure Modeler (AIM) is a new product that has been specifically developed to cater for concepthough, a product with a less Supplier Autodesk tual design for infrastructure rigid toolset can enable greater Price £5,500 projects. According to productivity. When planning Autodesk, it is ideal for civil a new site layout, for example, engineering, transportation, you do not want to get bogged down in and urban planning projects of all sizes, but details. There is little point spending hours the software could find itself equally at home modelling rigid alignments and earth- in an architectural practice wanting to put a works and rendering multiple proposals building design in the context of a 3D site.
The key thing about AIM is that it is incredibly easy to use. You hardly need any CAD skills to use it — it is a breeze compared to AutoCAD Civil 3D. In many ways, it is like SIM city, the classic city-building game — lots of dragging and dropping from libraries, while grips make it easy to adjust geometry.
But there is a whole lot more to AIM than simply providing a representation of a design. While it is great for knocking up concepts in hours, or even minutes, it can also see a project right through to its as-built stage. Over time, concept models can be replaced by detailed designs to create living, breathing asset models. AIM can even be used for city scale modelling, a use case which was originally championed by the software’s Autodesk Labs test bed technology, Project Galileo.
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Autodesk Infrastructure Modeler 2012
Setting the scene The starting point for any project is to provide the context for the new design. To do this AIM can bring in data from a variety of sources, including, CAD, GIS (Geographic Information System), and a wide range of terrain and imagery file formats.
A good starting point is a digital terrain model over which aerial photography, CAD or GIS data can be draped, referenced to the same co-ordinate system. 2D data can quickly be turned into a 3D model. At the conceptual stage of a city planning project, for example, the planner may be happy giving all buildings an arbitrary height of, say, 10m. Individual buildings can then be tweaked by pulling on grips or dialing in specific values.
When a more accurate base model is required, detailed datasets that feature specific building heights are also available off the shelf. These are derived from LiDAR or stereo imaging data, but costs can be high.
AIM can be used to visualise a wide range of data defined in GIS systems like AutoCAD Map, ESRI ArcGIS or Bentley Map. For example, conservation areas, those earmarked for regeneration, or properties that would be impacted by noise pollution from a proposed road.
Some off-the-shelf GIS datasets already come with attribute data, Ordnance Survey Mastermap data for example classifies buildings by commercial or residential use. Modelling design concepts AIM includes a range of modelling tools for quickly laying out roads, underground utility pipelines, housing plots, buildings and land and water features. They are incredibly easy to use and simple proposals can be knocked up in minutes.
As design features are added they automatically follow the terrain, but can be easily adjusted to sit above (bridges) or below the surface (pipes). 2D and 3D designs can also be brought in easily from CAD systems via DWG. All geometry — existing and proposed — can be tweaked by pushing and pulling on grips. Terrain can also be adjusted. We are not talking about accurate civil engineering grading here though; it is really just for visualisation purposes — flattening a sloped site to create a pad for a building, for example.
Design features can be stylised by dragging and dropping items from a library. These include road types (single carriageway, dual carriageway), textures for the sides of buildings, bridges, tunnels and land features such as parks, lakes or car parks. There is also a library of street furniture, including road signs, lampposts, bus stops and trees. Any 3ds Max or Revit model can also be dropped into the catalogue and re-used. With a little bit of attention, models can be made to look quite visually appealing.
AIM’s conceptual design tools are intentionally basic so they are easy to use, but the
1 Autodesk Infrastructure Modeler can be used to visualise entire towns or cities, using a combination of imported data and built-in modelling tools. 2 Masterplanning for a medical campus 3 City of Le Havre, France. Data Courtesy of Le Havre 4 Users can drag and drop different road styles from the builtin library. Image courtesy of bimontherocks. typepad.com
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objects they create are semiintelligent. For example, a junction is automatically generated when a road intersects with another road. The system will automatically remove any street furniture — lampposts or street signs — that would interfere with the new design.
For architects and city planners, the system includes some basic building design tools, but AIM is not great for anything more than simple 4 massing studies. To add more detail, conceptual models can be brought in from Autodesk’s Project Vasari or Google SketchUp Pro via Autodesk’s FBX format. Detailed designs can be imported from Revit or 3ds Max Design. Presentations AIM is perfect for presentations and a great tool for communicating proposals. Models can be navigated in real time using Autodesk’s view cube, and because designs can be edited in a flash, it would be perfect for bringing more interaction to client meetings or public consultations — rather than suffering ‘death by PowerPoint’.
The software has a built-in proposal management tool, so design variants do not have to be stored as separate files. This not only makes it easy to present ideas — three different layouts for a site, for example — but makes file management a lot easier.
There are some other presentation features. Time can be incorporated into the model and assets given start and termination dates, so you can see how a project will change over time. It is no NavisWorks Timeliner, which is used for construction simulation, but a useful way of communicating how a site may develop over time nonetheless.
Custom tool tips can be added to assets, which reveal themselves when you hover the cursor over them. This could be simple attribute information, but can also feature thumbnail images, web links, or direct links to files — PDFs, TIFs, AVIs or even Revit files. With a little bit of time investment, this could become a really powerful feature to reveal more detail about a design.
At present there is no standalone viewer for AIM, but the good news is Autodesk is developing a technology for sharing models online. Available on its Autodesk Labs site (labs. autodesk.com) Project Galileo Online enables users to publish AIM models to Autodesk’s cloud, and invite others to access, download, and commit changes to shared models.
Not all ‘Labs’ technology makes it into shipping products, but we’d be very surprised if this doesn’t graduate in some form or another. It would be an extremely powerful way of getting stakeholders more involved in a project and perfect for public consultations. Imagine being able to navigate around a model to see the true impact of a design proposal from all angles and give feedback in context — all without having to use up an expensive software license. Animations do a good job of telling a story, and AIM can be used to put together AVIs in a flash, but you can’t beat an interactive environment. From concept to as-built While AIM is purpose-built for conceptual design, things do not have stop at this early stage. As a project evolves, concept models can be replaced with detailed design models. Then, once a project has been completed, AIM can be used to help manage constructed assets. Here, the custom tool tips can perform a very powerful role of providing a gateway
Terrain data
AIM is all about 3D visualisation, so some form of digital terrain data is really a necessity to get the most of out the system. There’s a whole range of 3D datasets available in the UK, from the likes of Bluesky (www.bluesky-world. com), emapSite (emapsite.com) and getmapping (www2.getmapping.com), some of which are available for as little as £50 per sq km. Prices vary according to accuracy, and for conceptual design some of the less accurate datasets will do a good job. You can mix and match datasets, so more detailed datasets could be bought for specific areas of interest, while lower resolution terrain models can be used for context. It should be pointed out here though that AIM is not designed to be used for the preparation of 3D terrain models – this should be done with a dedicated package such as AutoCAD Civil 3D. One of the aforementioned data providers will be able to offer advice.
to as-built information. Everything in IM is written directly to a SQLite database, which means there are good connections to most third party GIS systems. AIM also offers a direct link to AutoCAD Map and AutoCAD Civil 3D, which is good for workflow. Users can swap seamlessly between AIM and Civil 3D without having to export or shut down model files. A road design can be started in AIM and developed further in AutoCAD Civil 3D. There are no rigid check in/ check out processes and with good communication within the design team, both can be carried out in parallel, simply press F5 and the road alignment will instantly update in AIM.
For sharing architectural data the process is manual and as a design evolves, files can be swapped in and out manually, via Autodesk’s FBX format. Level of detail needs to be considered here though. Bringing in detailed models for an entire housing estate is likely to slow the system down, so models may need to be simplified prior to import. Conclusion Autodesk Infrastructure Modeler is a powerful conceptual design tool. It offers an environment where all types of data, geospatial, architectural, civil, can be considered together, presented in an interactive 3D environment that is easy for anyone to understand.
The software also scores highly on its usability. Even those with only a modicum of CAD experience should be able to pick it up in a matter of hours. With its intuitive design and editing tools, new proposals can quickly be explored, making design reviews or client meetings much more interactive.
AIM is great for exploring initial proposals in context, but can also see a project all the way through to the as-built stage. AutoCAD Civil 3D can be used to develop the detailed design, complete with cut and fill, and then be brought back seamlessly into AIM. Architectural massing models can be replaced by detailed Revit models.
With such big benefits from linking to Autodesk’s design apps, it may not be the best time to be buying AIM, which costs £5,500 a license. Launched in Summer 2011, mid-way through Autodesk’s yearly update cycle, it did not make it into Autodesk’s infrastructure design or Building Design suites. It could be worth waiting until Spring 2012, when the 2013 suites are announced to see if you get more for your money — though Autodesk suites do offer less flexibility as all software has to run off a single machine.
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Review Autodesk Cloud
Last September Autodesk announced the launch of its cloud-based services, offering free features and additional benefits for subscription customers.
by Martyn Day
Ihave been following Autodesk’s cloud aspirations for some time now. While initial experiments involved running desktop applications on remote servers (Project Twitch) the reality of this happening is clearly some way off. More recently, the company has released capabilities that would add to its existing desktop applications. Autodesk Cloud is the first offering that enables designs to be accessible everywhere with some of these really useful applications.
Autodesk Cloud is your own personal internet hard drive. It is free to sign up and get 1GB of space on the cloud. As it is always on the web server these files are available anywhere there is a computer attached to the Internet and security is provided by email and password log in. With Autodesk expanding iOS and Android-based applications, drawings and design documents are also available through the cloud on smart phones and tablets. In this capacity, you can think of Autodesk Cloud as a USB stick you can’t lose.
Using a drag and drop web interface, files can be uploaded, shared, viewed or edited in AutoCAD WS, a web delivered view and editing tool. It is possible to make a folder structure, share privately or publicly, update a version, see the document activity (history) and assign categories. Unlike most previous Autodesk web offerings, this is not just limited to Internet Explorer but all contemporary browsers.
If you are working with a tablet or smartphone, by using the free Autodesk Design Review Mobile App it is possible to access drawings stored on the cloud anywhere that you can get a wi-fi connection or good 3G signal.
All this capability is available for free. The only thing the service does not support is the editing of 3D models in AutoCAD WS but I am assured this is coming. It is possible to load 3D DWGs into the cloud for others to download and use in their CAD systems. Subscription enhancements Autodesk subscription has a whole lot more on offer. First off, there is more space, 3GB per user, so that means more drawings.
Users of Autodesk Suites will get a mix of applications based on the suite they purchased. For AEC the key additional cloud capabilities are rendering, energy analysis and collaboration.
The most popular application is cloud rendering. This enables the creation of photorealistic visualisations to be generated using
powerful remote servers, leaving the desktop PC free from the heavy workload. The cloud renderer is accessed from within applications such as Revit through a dialogue box. An email is automatically generated when the rendered image is ready and will appear in the image gallery on icloud or the web services tab in Revit.
As the images are automatically stored online, collaborators can also log in and see the current project renders. There is the added benefit of being able to render a view from anywhere at anytime with different settings or a 360 degree panoramic view.
Energy consumption and building lifecycle costs can be established early in the design process using Autodesk Revit Conceptual Energy Analysis, powered by Autodesk Cloud, to quickly analyse multiple design concepts. As the design evolves the energy analysis report automatically updates. Green Building Studio, a whole building energy and carbon footprint analysis tool has also been ‘cloud-powered’, providing multiple simultaneous online results and accessed anywhere they are needed.
Collaboration is provided by the Buzzsaw cloud application, which was one of the first cloud applications that Autodesk developed. This cloud application allows you to link to external consultants and firms and can now be integrated with the client-side Autodesk Vault document management system to ensure the right revisions of the DWGs are constantly available through the cloud. Conclusion Autodesk Cloud is an easy to use and elegant solution to hold important files for on-demand access. With the rise of tablets, 2D drawings and renderings should always be available on site. The capabilities for free usage are very generous. It gets really interesting for subscribers as it’s the applications that get the most out of the massive (Autodesk calls it infinite) computing power that the cloud can provide. This not only frees up your system but also allows more informed decisions earlier in the design process. I like the fact that the results are both available in applications and online.
Autodesk will be adding more cloud apps over time, adding to the value of the subscription package. There are concerns about security but the Amazon servers use very high-level encryption — and when you think about it who doesn’t use internet banking these days?
