rtc 2016 -_landair_surveys_-_laser scanning_-_from_field_to_revit

Laser Scanning: From Field to Revit

Erik Birzulis & Gregg FranzLandair Surveys

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Agenda• Introduction• Laser scanning: what and how• Recap: the middleman (example project

Adelaide Brickworks)• Importing and then working in Revit• Plug-Ins for modelling (example project

Queensland quarry)• Case studies

What Is Laser Scanning?

Total Station vs Laser ScannerLaser Scanner 1 hour fieldTotal Station 4 hour. Office 4 hours

Total Station vs Laser ScannerOffice 4 hours from laser scanning data

Why Use a Laser Scanner• Rapid data collection = minimal site disruption• Save money. All visible features measured first time, call

backs almost eliminated• Minimise your risk• Design with confidence• (get a complete photographic record as bonus)

Why Use a Laser Scanner

Point Cloud from One StationRaw Point Cloud Cleaned Point Cloud

RegistrationTarget Combined Point Cloud

Georeferencing

Adelaide Brickworks Project

Adelaide Brickworks Project

Adelaide Brickworks Project

Adelaide Brickworks Project

Point Cloud video

Sometimes Things Don’t Quite Work Out

You Have a Point Cloud, Now What?

• Point clouds are massive: 1.5GB small job to hundreds of GB

• RCS Recap Scan File• RCP Recap Project File

Recap

• Clean data• Clipping Box, Region

segmentation• Regions < 500MB

Recap Demo

• Live demo

Importing to Revit

Regions

Regions

Regions

Long Section to Set Levels

Long Section to Set Levels

Long Section to Set Levels

In place component used to document trusses

Massing used to document major forms

Massing used to document major forms

Revit Model

QA Report

John Fawkner Hospital

John Fawkner Hospital

The Mint Point Cloud

The Mint Model

Plug-Ins for ModellingDo you need to model?• Dimensioning• Presentation• Clash Detection• Visualisation

If modelling try:• Clearedge Edgewise• Imaginit Scan to BIM• Leica Cloudworx for Revit

Clearedge Edgewise

ProcurementScanning• Functional Performance

requirement• Resolution of measurement• Accuracy• Quality Control

Modelling• Level of detail

(development) to model LOD

• Accuracy of model to point cloud

BIM Forum Level of Development Specification

Conclusion• Many benefits of using point clouds• Point cloud data via Recap into Revit• Segment data• Data management• Do you need to model?• Model using just Revit or plug ins

Erik BirzulisLandair Surveys

Questions? . . .

S3.1 Laser Scanning: From Field to Revit

erik@landair.com.au0418 348 538