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Delivery Value from Point Clouds to BIM
Existing-building renovation, fit-out development, as-built documentation, industrial-facility upgrades, and operations preparation begin with a measurable, reviewable, and shareable three-dimensional record of visible site conditions. A handheld simultaneous localization and mapping (SLAM) scanner can capture continuously through rooms, floors, and equipment areas, preserving walls, framing, openings, equipment, and spatial relationships as a point cloud for building information modeling (BIM) in professional applications such as Autodesk Revit.
Data from the SHARE SLAM S20, SHARE SLAM S20 SE, SHARE SLAM S100, and the separate SHARE3DCAM C10 Series can be processed in SHARE PointClouds Studio for dimensional checks, coordinate transformation, section extraction, computer-aided design (CAD) reference drawings, and change comparison. The point cloud provides visible existing conditions and a measurement basis. Downstream BIM modeling is completed by specialists after the project team confirms the required elements, information depth, and delivery formats.
Figure 1: Point-cloud deliverables proceed through geometric modeling, BIM information entry, and staged checks to form a delivery chain from existing-condition capture to a professional model.
Revit/BIM Scenarios Supported by Point Clouds
- Existing-building renovation: Record visible walls, columns, beams, slabs, openings, and services before demolition or redesign, supporting option studies, clearance review, and construction communication.
- Fit-out development and remeasurement: Capture rooms, corridors, stairs, ceilings, and equipment zones continuously; create the required elements in Revit and review openings, floor heights, and interfaces against the point cloud.
- As-built records and change comparison: Preserve visible conditions at the capture date and include the point cloud, critical-dimension checks, and model versions in the project record.
- Factories, campuses, and multi-floor projects: Establish a shared coordinate basis for equipment zones, utility corridors, structural interfaces, and indoor–outdoor connections to support multidisciplinary modeling and review.
- Operations-model preparation: Locate equipment and spaces from the point cloud, then add asset codes, specifications, system relationships, and maintenance information from registers, drawings, and field records.
Delivery Workflow from Site Capture to Revit/BIM
- Confirm the project use: Define whether the model supports renovation design, fit-out development, as-built records, equipment upgrades, or operations.
- Confirm the capture scope: List floors, rooms, façades, plant rooms, equipment areas, outdoor connections, and dimensions that require priority review.
- Process and inspect the point cloud: In SHARE PointClouds Studio, complete point-cloud processing, manual corresponding-point registration, coordinate transformation, section extraction, and 3D/elevation checks, retaining independent check reports.
- Prepare CAD and modeling references: CAD drafting export creates both drawing exchange format (DXF) and DWG files in the exported ZIP package for 2D drafting or Revit modeling reference.
- Complete downstream professional modeling: Build the model in Revit or another professional application using the confirmed coordinates, units, element scope, and information depth.
- Check and deliver the model: Sample-check critical dimensions, element positions, and model versions, then deliver the agreed RVT, Industry Foundation Classes (IFC) exchange model, or complete BIM output.
Inputs the Modeling Team Should Confirm
| Input | What to confirm | How the point cloud supports it |
|---|---|---|
| Project use | Renovation design, fit-out development, as-built documentation, or operations preparation | Provides a three-dimensional reference for visible conditions at capture time |
| Scope and elements | Floors, zones, disciplines, and element classes to be modeled | Supports positioning, measurement, and shape review of visible surfaces |
| Coordinates and units | Project coordinates, levels, length units, and transformation method | Confirms point-cloud position through controls, coordinate transformation, and independent check reports |
| Information depth | Element properties, codes, systems, and maintenance fields | Provides geometric location; drawings, registers, and professional records supply properties |
| Delivery formats | Point clouds, DXF/DWG ZIP package, RVT, IFC, or complete BIM | Preserves traceability among point-cloud, CAD-reference, and model deliverables |
| Check method | Critical dimensions, sample scope, allowable deviations, and sign-off records | Supplies 3D/elevation check reports and dimensional-review evidence |
Information for Downstream Modeling
A package prepared for Revit/BIM modeling can include:
- inspected point clouds with format, units, and coordinate-system notes;
- scope plans, floor or zone descriptions, and priority-object lists;
- control-point records, independent check points, and 3D/elevation check reports;
- sections and plans, plus a CAD export ZIP package containing both DXF and DWG files;
- site photos and occlusion or supplementary-capture records; and
- the required element scope, information depth, RVT/IFC versions, and acceptance checklist.
RVT, IFC, and complete BIM models are created through downstream professional workflows. Once the project team confirms information depth, element scope, and delivery formats, capture, design, and modeling teams can work from the same point cloud and inspection records.
Frequently Asked Questions
How can a fit-out measurement become an editable floor plan? After SHARE SLAM capture, inspect the point cloud in SHARE PointClouds Studio, extract sections or plan references, and complete CAD-assisted drafting. CAD drafting export creates both DXF and DWG files in the ZIP package; layers, annotations, and critical dimensions should be reviewed by a qualified professional.
How can factories, campuses, or multi-floor projects use one coordinate system and produce CAD drawings? First define the project coordinates, units, and control points. Complete coordinate transformation and use independent check points that were not involved in the solution to generate check reports. Extract sections at the required positions, complete manual drafting and review, and export a ZIP package containing both DXF and DWG files.
How are point clouds used for Revit/BIM modeling of existing buildings? Import the inspected point cloud and CAD references into Revit or another professional application, then build the model to the confirmed element scope, information depth, and format requirements. The point cloud provides visible existing conditions and dimensional evidence; downstream professional modeling produces RVT, IFC, and complete BIM deliverables.
How should equipment be selected and results validated in complex interiors? Evaluate the SHARE SLAM S20, SHARE SLAM S20 SE, SHARE SLAM S100, or the separate SHARE3DCAM C10 Series according to space size, occlusions, access, imagery needs, and coordinate requirements. Run a representative-area trial, review coverage, trajectory, and critical dimensions, and confirm results with independent check reports.
