It is extremely easy to reduce the size of a point cloud dataset using Recap. “Decimation” is the process of discarding points from the data to improve performance and reduce disk usage.
With the release of point cloud support in Revizto, you can now bring a point cloud into the Revizto platform in a number of ways:
Export from Navisworks
Export from Revit
Import points directly in RCP or RCS format
Once the reality capture model has been added to Revizto, you sync it to the cloud. From there, you can download and view the point cloud on your iPad, and of course you can start creating issues that relate to the captured condition on site. You can even overlay 2D drawings onto the reality capture data.
The decimation process is very easy :
Open your Recap file (add scans and index first if necessary)
Give your file a name
Click the settings button
Move the slider to adjust your point decimation – you might use around 50mm decimation for a lot of site applications.
Save the file
There are other considerations, such as:
How can you set up coordinate systems to work with Revit, Navisworks and Revizto?
These will be considered in more detail in another post.
Harlan Brumm recently tweeted about updates to Revit:
so you might have noticed, we released a number of fixes for Revit versions. These are important fixes to address security issues and to ensure your product keeps working as you expect. Check out the read-mes for more details. https://t.co/rLGfi9aihM – this will be updated too
Once you start to run more than 4 monitors, most computers start to struggle. So, then you need more computers to have more monitors 🙂 And then, you need to share one keyboard and mouse across multiple computers… so you need a mouse and keyboard sharing utility, that preferably also shares your clipboard.
I just added the 5th monitor to my office setup:
All you need is to install Mouse without Borders on both machines. The utility allows you to use keyboard, mouse and clipboard from one computer on another one.
Experienced Navisworks Coordinators typically have a very solid workflow in place for grouping clashes into clash groups. Some prefer to do that part manually (with selection and filters), so they can observe and determine which items should be grouped together. Others will use an auto-grouping tool, like bim42 Group Clashes, or iConstruct.
If you are using iConstruct and you wish to use the Navisworks clash group data downstream, you may wish to preserve existing clash groups at each subsequent clash run, and only group the ‘new ungrouped’ clashes. The bim42 Group Clashes tool has a tickbox for this, and iConstruct 2019 provides a filter. If you are using iConstruct 2018 or older, you may be wondering how to preserve existing clash groups and only “push” the grouping rules for clashes that are currently not grouped.
Run the Clash Manager from iConstruct
Find the list entry without a name
iConstruct 2019 has a filter for “Show Ungrouped Clashes”
iConstruct 2018 – select only the ‘unnamed’ Clash Group: ,
Then click “Create Clash Detective Group”
iConstruct will immediately create the relevant groups from only the ungrouped clashes
You can then go ahead and Sync to Revizto, or use the data downstream in some other workflow
Here’s a video from Robert Gadbaw that clearly demonstrates this workflow:
This workflow will allow you to use iConstruct to group your clashes, and preserve those groups when Syncing with Revizto. Revizto has a very solid and customisable connection to Navisworks that includes the ability to sync the clash results with Revizto Issues in both directions.
I’m sure you are aware that intellectually Revit shared coordinates take minutes to explain, but emotionally they take years to master 🙂
I’ve been looking for a way to check and validate coordinates using the Revit API. One method I implemented in VirtualBuiltApp is to gather Grid Intersection coordinates and compare those, but obviously you need a federated model with links to achieve that comparison.
One interesting fact to note is this:
two Revit models can Report functionally identical shared coordinates (same translation and true north rotation), and you can still receive “The host model and the link do not share the same coordinate system. Default center-to-center positioning will be used”.hashtag sadface, hashtag why-revit-why
If we put this another way:
if two models don’t have some related history (created from the same file), or
if Acquire or Publish Coordinates has not occurred between those models, then
the Shared Coordinate error will appear — even if they report identical Spot Coordinates and True North Rotation
If you are wondering what the Revit API actually does support in terms of Shared Coordinate setup and validation, here is the best bit of Revit API Shared Coordinates information I can share:
A GUID-based relationship is set up between the files. Setting up the same relationship has been possible via the API via Document.AcquireCoordinates() for a few releases.
With 2018’s SiteLocation.IsCompatibleWith() it is also possible to identify if two coordinate systems are the same.
If you have Desktop Connector installed, you probably realise you can ‘upload’ Revit models and other files to BIM 360 Docs by dragging and dropping to the folder in Windows Explorer (using Desktop Connector). However, when you try and link this using the BIM 360 shortcut in Revit, you might not be able to see the file…
Here is a workaround that may allow you to link a non-initiated Revit model into your Revit file:
Ensure you have Autodesk Desktop Connector installed
Start Link Revit command from the ribbon
Update: Click on the Address drop down
Click on This PC
Browse to BIM 360 from the window below:
Select the file (non initiated) that you want to link
You should get the BIM 360 prefix in Manage Links:
Thanks to @BIM4GIB we have a script to automatically download the latest Uniclass 2015 tables from the NBS website. You basically download and unzip, then run the script and you get a Uniclass2015 dataset downloaded. Awesome stuff, nice work Rene Pellicer!
From the readme:
1. Copy the folder “Uniclass2015-GetLatest” from the ZIP file to your C:\ (This is critical or the script will fail)
2. Double-click on the “Uniclass2015-GetLatest” shortcut. A PowerShell icon will appear in your taskbar. Click ‘Open’ on the dialog box.
You might have to type “Y” (without the quotes) in PowerShell to confirm you want to run the script, depending on your security settings.
3. Wait approx. 50 seconds. Excel will open and close several times. That is a feature.
4. After the script has run, a dialog box will appear. Click OK
5. You should now see a new spreadsheet called “Uniclass2015-AllTables.xlsx” in C:\Uniclass2015-GetLatest\
6. Classification Manager…
I have developed a working BIM360 to on-premises backup mechanism. There were a few different ways to go…
I initially considered:
Hacking Windows Explorer to touch the files in the BIM 360 node and try and trigger the BIM360 Docs download and copy to local PC or network location
Developing a Forge app that essentially pulls the desired models out of the BIM 360 cloud to desired location?
In the end, I decided to use the Revit API (Dynamo and Python), along with VirtualBuiltApp, to essentially reverse engineer a folder structure from the local CollaborationCache folder. These ideas are hinted at here.
In simple terms, the BIM 360 Docs on-premises backup workflow is:
Create a super federated BIM 360 model (with all other BIM 360 models linked into it)
A Dynamo script reloads all links in order to cache them locally
The same script interrogates, then determines the target file name and folder from VirtualBuiltApp
Dynamo then copies the files into their ‘backup’ location on the local network
Some more detail is presented below:
A) Cache Cleaner CMD Script (may not really be necessary, as the ‘reload’ should overwrite superseded cache anyway):
Kill Revit if Open… be careful of below steps, particularly if Revit has crashed recently. You might need these local copies 🙂
cd "%LOCALAPPDATA%\Autodesk\Revit\Autodesk Revit 2018"
for /d %i in (*) do move "%~i" oldCache
B) Manual steps to setup Revit model environment to run the script:
Open Federated BIM 360 file (worksets closed)
Unload all links
Open all Worksets
C) Dynamo Script:
Run Dynamo (Python) script that reloads and unloads all links (this collects .rvt into cache). Key Python commands to use are: RevitLinkType.Load() and RevitLinkType.Unload(None).
Coordination Monitor alert, no longer exists
Instance of link needs Coordination Review
“Some numerical data within the imported file was out of range. This numerical data has been truncated.”
“Geometry in the file … has extents greater than 20 miles (33km).”
Just to be clear, while the steps below *work* at this time, it apparently is an unsupported and inappropriate workaround and there could be risks (financial or otherwise) for BIM 360 Docs customers who invite free users into their projects. You should only invite:
BIM 360 Docs users for which you have paid for and applied an entitlement
BIM 360 Design (C4R) users who have purchased their own entitlement
I expect this workaround may eventually be disabled by Autodesk? You can view if you have exceeded your purchased package of BIM 360 Docs entitlements in the relevant Autodesk Manage pages. For example, it might show 16 of 10 licenses used in red? This is where I think there is potential for Autodesk to back charge users who abuse this current state of affairs.
My advice: check directly with Autodesk about who you can and cannot share your BIM 360 projects with…and proceed accordingly.
You are a paying BIM 360 Docs user and would like to invite a non-paying user to collaborate inside a BIM 360 Docs workspace. Perhaps you just want them to be able to upload and download files, but not Collaborate in Revit…
They need to create a free BIM 360 Docs account, and then get invited to your workspace.