Service

Point Cloud to CAD

Point cloud to CAD converts registered scan data into precise 2D as-built drawings. We draft plans, sections, elevations, and deviation overlays in DWG, DXF, or DGN for AutoCAD, BricsCAD, and MicroStation workflows. No scanning needed if you already hold the data, and we accept third-party point clouds from any scanner.

Point cloud to CAD 2D drafting workflow from scan data - Brisbane Point Cloud

Overview

Point Cloud to CAD explained

Point cloud to CAD converts registered scan data into accurate 2D as-built drawings. Where scan to BIM builds an intelligent 3D model, point cloud to CAD delivers exactly what many teams actually need: clean plans, sections, and elevations in DWG, DXF, or DGN that match the building as it stands. We capture with the Trimble X7, Trimble X9, and NavVis MLX where fieldwork is required, and we draft just as readily from third-party point clouds supplied by your own crew or another provider.

The workflow is straightforward and fast. The registered point cloud is referenced into the CAD environment and sliced at the correct planes, then a drafter traces walls, openings, columns, structure, and key features into layered, dimensioned linework. Because the drawing is traced from measured data rather than a tape survey, it reflects true wall thicknesses, real openings, and the actual position of structure, which removes the errors that creep into hand-measured as-builts and surface later as variations.

This service exists because not every project needs a 3D model. Documentation, building permits, lease and tenancy plans, fire and egress drawings, and teams working purely in AutoCAD all want accurate 2D drawings, and producing those directly from the point cloud is faster and lower cost than modelling first and extracting later. When a coordinated 3D model is the goal, our scan to BIM service is the right path, and we routinely advise clients on which output, or which combination of both, fits the decision they are making.

Drawings are produced to recognised presentation standards. Linework, layering, dimensioning, and annotation follow AS 1100 technical drawing conventions and the general principles of ISO 128, and we match your office CAD standard, titleblock, and layer naming where you provide them. Deviation overlays against supplied design lines are available where you need to show as-built against intent. Every drawing is checked back against the point cloud during QA, and final files are issued in DWG, DXF, DGN, and PDF.

Survey control & accuracy

AHD levels and MGA2020 coordinates

CAD drawings inherit the coordinate framework of the source point cloud. Where we capture the data, scans are registered to MGA2020 coordinates with levels reduced to the Australian Height Datum (AHD), and a registered surveyor on staff oversees control for design-grade work. Where you supply the point cloud, we draft in your existing project coordinates so the drawings align with the rest of your documentation set. Levels and setout shown on the drawings carry the datum of the registered scan.

Capabilities

What we deliver

  • 2D drafting directly from registered point cloud data
  • Floor plans, reflected ceiling plans, and roof plans to DWG/DXF/DGN
  • Building and site sections at any cut line
  • Measured elevations of facades and internal walls
  • Deviation overlays comparing as-built drawing to design lines
  • Layered, annotated CAD ready for AutoCAD, BricsCAD, and MicroStation
  • As-built drawing sets for documentation, permits, and tenancy records

Equipment Used

Trimble X7Trimble X9NavVis MLX

Deliverables

  • As-built floor plans (DWG, DXF, DGN)
  • Sections and elevations (DWG, DXF, DGN)
  • PDF drawing sets for review and issue
  • Layered, annotated CAD to your drafting standard
  • Deviation overlay drawings where design lines are supplied

Technical specifications

The numbers behind the data

Output formats
DWG, DXF, DGN, PDF
CAD platforms
AutoCAD, BricsCAD, MicroStation
Drawing types
Plans, RCPs, sections, elevations, overlays
Drawing accuracy
Within a few millimetres at documentation scales
Source point accuracy
+/-2mm at 20m (Trimble X7)
Input formats
E57, RCP/RCS, LAS/LAZ, PTX (any scanner)
Standards
AS 1100 presentation, your office CAD standard
Datum
Project coordinates or MGA2020, AHD levels

Standards & compliance

Standards we work to

AS 1100Technical drawing

Governs presentation, dimensioning, and annotation of all CAD drawings.

ISO 128Technical drawings, general principles of presentation

International conventions for line types and views applied to drawing sets.

ICSM GDA2020MGA2020 coordinate framework

Datum used where drawings are georeferenced to project coordinates.

ASTM E2807E57 point cloud data exchange

Open format accepted as input from any scanner brand.

Full standards reference

Our Process

How we work

01

Scope & Drafting Standard

We confirm which drawings you need, the cut lines for sections, the level of annotation, and your CAD layer and titleblock standard. If you supply scan data, we check coverage and registration before drafting.

02

Point Cloud Preparation

The registered point cloud is cleaned, sectioned, and referenced into the CAD environment. Slices and orthographic views are set up at the correct planes so drafting traces true geometry.

03

CAD Drafting

Our drafters trace walls, openings, structure, and key features from the point cloud into 2D linework. Drawings are layered, dimensioned, and annotated to AS 1100 presentation and your office standard.

04

QA & Delivery

Each drawing is checked back against the point cloud for accuracy and completeness. Final files are issued in DWG, DXF, DGN, and PDF via secure cloud link with a short methodology note.

FAQs

Common questions

What is point cloud to CAD?

Point cloud to CAD is the process of converting registered 3D scan data into accurate 2D CAD drawings. A drafter references the point cloud into a CAD environment, slices it at the required planes, and traces walls, openings, structure, and features into layered linework. The output is a set of as-built plans, sections, and elevations in DWG, DXF, or DGN that match the building as it stands. It is the fastest route to clean, documentation-ready 2D drawings when you do not need an intelligent 3D model.

What is the difference between point cloud to CAD and scan to BIM?

Point cloud to CAD produces 2D drawings: lines, layers, and annotation in DWG, DXF, or DGN. Scan to BIM produces an intelligent 3D model in Revit or ArchiCAD where each wall, column, and service is a parametric object carrying data. Point cloud to CAD is usually faster and lower cost and suits documentation, permits, lease plans, and teams working in AutoCAD. Scan to BIM suits design, clash detection, and facilities management where a coordinated 3D model is needed. Many projects use both, and we help you choose during scoping.

What CAD formats do you deliver?

We deliver native DWG for AutoCAD and BricsCAD, DXF for cross-platform interchange, and DGN for MicroStation workflows, plus PDF drawing sets for review and issue. Drawings are layered and annotated to AS 1100 presentation and your office CAD standard, including titleblock, layer naming, and line conventions where you provide them. If you need a specific AutoCAD version or template, we match it.

How accurate are the CAD drawings?

The drawings inherit the accuracy of the source point cloud. With Trimble X7 data at +/-2mm point accuracy and network registration of 3 to 5mm, drafted linework reflects true as-built geometry within a few millimetres at the scales used for building documentation. Dimensions are taken directly from the point cloud, and each drawing is checked back against the cloud during QA. Where you supply third-party scan data, the achievable accuracy depends on that data, which we assess before drafting.

Do you accept third-party scans?

Yes. We draft from point cloud data captured by any scanner brand or platform, including Leica, FARO, Trimble, Riegl, Z+F, NavVis, Matterport, and UAV LiDAR. We accept E57, RCP and RCS, LAS and LAZ, PTX, and common proprietary formats. If your field team captured the data but does not have drafting capacity, we take it from raw point cloud through to a finished CAD drawing set. We check coverage and registration first and flag any gaps before work begins.

Can you produce deviation overlays against our design?

Yes. Where you supply design lines or a reference drawing, we overlay the as-built linework against the design so deviations are clear on the drawing. This is common for verifying built conditions against intent on fitouts, facades, and structural work. For full 3D deviation analysis against a model, our construction verification scanning service produces colour-coded deviation maps from the point cloud.

Get a quote for point cloud to cad

Tell us about your project and we will provide a fixed-price proposal within one business day.