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@datadrivenconstruction/cad2data
@datadrivenconstruction/cad2data/lib/index.js

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Readme

@datadrivenconstruction/cad2data

CAD/BIM converter pipeline — convert Revit, IFC, DWG, DGN files to structured Excel/DAE/PDF data with validation and quantity takeoff.

Part of the Data Driven Construction ecosystem

Supported Formats

Input	Output	Converter
`.rvt`	XLSX, DAE, PDF	RvtExporter
`.ifc`	XLSX, DAE	IfcExporter
`.dwg`	XLSX, PDF	DwgExporter
`.dgn`	XLSX	DgnExporter
`.rvt`	IFC 2x3/4/4x3	RVT2IFCconverter

Revit versions: 2015–2026 • IFC versions: 2x3, 4.x • DWG: 1983–2026 • DGN: v7–v8

Requirements

Windows (converters are native .exe)
Node.js >= 16
Microsoft Visual C++ Redistributable 2015–2022 (x64)

Installation

npm install -g @datadrivenconstruction/cad2data

After installation, copy your converter executables into the converters directory:

cad2data list   # shows the converters directory path and status

Copy these files into the shown directory:

RvtExporter.exe
IfcExporter.exe
DwgExporter.exe
DgnExporter.exe
RVT2IFCconverter.exe

CLI Usage

# Convert a single file
cad2data convert Model.rvt
cad2data convert Model.rvt --mode standard --bbox
cad2data convert Model.ifc -o ./output/

# Convert Revit to IFC
cad2data rvt2ifc Model.rvt --ifc-version 4x3

# Batch convert a directory
cad2data batch C:\Projects --format .rvt --format .ifc -r

# List available converters
cad2data list

# Shorthand — pass file directly
cad2data Model.rvt

Convert Options

Flag	Description
`--output, -o <path>`	Output file or directory
`--mode, -m <mode>`	`basic` / `standard` / `complete`
`--bbox`	Include bounding box data
`--room`	Include room data
`--schedule`	Export schedules
`--sheets2pdf`	Export sheets to PDF
`--no-xlsx`	Skip XLSX generation
`--no-collada`	Skip DAE/Collada generation
`--category-file <path>`	Category filter file
`--timeout <ms>`	Timeout in milliseconds

Export Modes

basic — 309 categories
standard — 724 categories
complete — all 1209 categories

Node.js API

const { CAD2Data } = require('@datadrivenconstruction/cad2data');
const cad = new CAD2Data();

// Single file conversion
const result = await cad.convert('C:/Projects/Model.rvt', {
  mode: 'standard',
  bbox: true,
  room: true,
});

// Revit to IFC
await cad.convertRevitToIfc('Model.rvt', {
  ifcVersion: '4x3',
  outputFile: 'Model.ifc',
});

// Batch conversion
const { results, errors } = await cad.batch('C:/Projects', {
  formats: ['.rvt', '.ifc'],
  recursive: true,
  onProgress: (file, i, total) => console.log(`[${i}/${total}] ${file}`),
});

// Check installed converters
const converters = cad.listConverters();
console.log(converters);

API Reference

`cad.convert(inputFile, options?)`

Convert a single CAD/BIM file.

inputFile — path to .rvt / .ifc / .dwg / .dgn
options.outputDir — output directory
options.outputFile — explicit output path
options.mode — 'basic' | 'standard' | 'complete'
options.bbox — include bounding box
options.room — include room data
options.schedule — export schedules
options.sheets2pdf — export sheets to PDF
options.noXlsx — skip Excel output
options.noCollada — skip DAE output
options.timeout — timeout in ms

Returns Promise<{ stdout, stderr }>

`cad.convertRevitToIfc(inputFile, options?)`

Convert Revit file to IFC format.

options.outputFile — output .ifc path
options.ifcVersion — '2x3' | '4' | '4x3'

`cad.batch(dir, options?)`

Batch convert all supported files in a directory.

options.formats — filter extensions, e.g. ['.rvt', '.ifc']
options.recursive — scan subdirectories
options.convertOpts — options for each conversion
options.onProgress — (file, index, total) => void

Returns Promise<{ results, errors, total }>

`cad.listConverters()`

Returns array of available converters with installation status.

n8n Workflows

This package includes pre-built n8n workflow templates in the workflows/ directory:

Basic Revit/IFC/DWG conversion
All settings configuration
Batch converter pipeline
CAD/BIM data validation
AI classification with LLM and RAG
Construction price estimation with LLM
Carbon footprint / CO2 estimator
Phase extraction with XLSX parsing
Quantity takeoff HTML report generator

Import them into your n8n instance from the workflows/ folder.

License

MIT — see LICENSE