Notes

Detailed task breakdown
1. File Viewing & Interaction
1.1 General File Viewing
• Task 1.1.1: Implement file type detection (PDF, DWG, RVT) on file upload/open.
• Task 1.1.2: Develop a unified, responsive viewer framework for multiple file types.
• Task 1.1.3: Provide core navigation tools (zoom, pan, rotate, layer toggling).
• Task 1.1.4: Optimize performance and memory for large files/models.
1.2 PDF Handling
1.2.1 Annotations
• Task 1.2.1.1: Implement drawing tools (shapes, freehand, highlight, arrows).
• Task 1.2.1.2: Provide text annotation with font options.
• Task 1.2.1.3: Add undo/redo for annotation actions.
1.2.2 Drawing Comparison
• Task 1.2.2.1: Enable loading and overlay of two PDFs.
• Task 1.2.2.2: Provide alignment tools and difference highlighting.
1.2.3 Version Control
• Task 1.2.3.1: Implement revision tracking with upload history/timestamps.
• Task 1.2.3.2: Allow viewing, restoring, and comparing previous versions.
1.3 DWG / RVT Handling
1.3.1 3D Model Viewing
• Task 1.3.1.1: Integrate 3D model viewer (rotate, zoom, pan, walkthrough).
• Task 1.3.1.2: Support layer visibility toggling.
• Task 1.3.1.3: Optimize rendering for large 3D models.
1.3.2 Metadata & Material Extraction
• Task 1.3.2.1: Extract and display metadata (structured tables, searchable).
• Task 1.3.2.2: Extract material quantities and generate exportable lists (Excel, CSV).
• Task 1.3.2.3: Support integration with scheduling/estimation tools.
1.3.3 Field Versioning & Perspectives
• Task 1.3.3.1: Enable walkthrough saving/restoring.
• Task 1.3.3.2: Track and manage field modifications/versioning.
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2. Measurement Tools
2.1 Base Measurements
• Task 2.1.1: Linear, area, and volume measurements across file types.
• Task 2.1.2: Support snapping to edges, points, and surfaces for precision.
• Task 2.1.3: Show visual measurement lines/labels.
2.2 Advanced Measurements
• Task 2.2.1: Scaling based on reference dimensions.
• Task 2.2.2: Comparative calculations (differences between lengths, angles).
• Task 2.2.3: Save/export measurements for reporting.
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3. Core Functions
3.1 Unified Viewer
• Task 3.1.1: Provide a single interface for PDFs, DWG, RVT.
• Task 3.1.2: Support limited editing and markup per file type.
• Task 3.1.3: Handle smooth navigation and layer switching.
3.2 File Conversion
• Task 3.2.1: Implement bidirectional conversion (PDF ↔ DWG).
• Task 3.2.2: Retain metadata and annotations post-conversion.
• Task 3.2.3: Validate accuracy and completeness of conversions.
3.3 Scheduling & Material Management
• Task 3.3.1: Generate material schedules (quantity tables, BOMs, timelines).
• Task 3.3.2: Provide exports (Excel, PDF, CSV).