Tracer

Tracer is a professional field-first LiDAR and laser-assisted floor plan and BIM authoring suite designed for architects, engineers, BIM managers, and field surveyors. It bridges physical job-site measurement and building information modeling by combining Apple RoomPlan LiDAR capture, precision Bluetooth laser distance meters, interactive 2D/3D parametric modeling, municipal GIS site alignment, and native Autodesk Revit model reconstruction.

Key Capabilities

• Apple RoomPlan LiDAR Capture: Real-time spatial scanning that automatically detects and extracts walls, doors, windows, and openings into clean parametric building geometry — ortho-aligned, floor-grounded, and snapped to host boundaries.
• Hardware-Assisted Laser Verification: Direct Bluetooth GATT integration with laser distance meters (REEKON T1 / M1 and standard BLE rangefinders) to capture clear spans and lock dimensional constraints directly onto the live plan.
• Parametric 2D/3D Field Editor: Native SwiftUI and SceneKit viewport supporting tap-to-select, drag-to-resize, corner filleting, CAD-style dimension input (with imperial fraction and space parsing), and chess-style stateful undo/redo.
• Multi-Level Building Assembly: Manage multi-story projects with base-point alignment per level, stackable in a merged 3D viewport with an immersive walkthrough preview.
• Municipal GIS & Site Georeferencing: Built-in MapAlignmentView aligns building footprints with municipal GIS datasets (NYC MapPLUTO and OpenStreetMap) to set WGS84 coordinates, elevation, and true-north rotation.
• Autodesk Cloud Integration (APS): OAuth 2.0 PKCE authentication with Autodesk Construction Cloud (ACC) and BIM 360, publishing IFC4 STEP models and <project>.tracer.json files directly into project folders with automatic version history.
• Native Revit Add-in: A dedicated C# / .NET Revit plugin with a custom ribbon tab (“Tracer Model Rebuilder”) that reads published .tracer.json scans and automatically reconstructs native parametric Revit walls, family-mapped doors and windows, levels, and georeferenced coordinates.

Joseph Freund. (2026). Freund R&D.