Generador de informes HTML para extracción de cantidades en proyectos CAD-BIM

• •No hay requisitos previos especiales, puede importar y usarlo directamente

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  "name": "CAD-BIM Quantity TekeOff HTML Report Generator",
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        "functionCode": "// Group walls by Type Name and sum Volume\n// Using only built-in JavaScript functions\n\n// Get all wall elements\nconst allWalls = $input.all().map(item => item.json);\n\n// Group by type_name using reduce\nconst grouped = allWalls.reduce((acc, wall) => {\n  const typeName = wall.type_name;\n  if (!acc[typeName]) {\n    acc[typeName] = [];\n  }\n  acc[typeName].push(wall);\n  return acc;\n}, {});\n\n// Create grouping results\nconst groupedResults = Object.keys(grouped).map(typeName => {\n  const walls = grouped[typeName];\n  const totalVolume = walls.reduce((sum, wall) => sum + (wall.volume || 0), 0);\n  const count = walls.length;\n  \n  return {\n    type_name: typeName,\n    wall_count: count,\n    total_volume: Math.round(totalVolume * 1000) / 1000, // round to 3 decimal places\n    average_volume: count > 0 ? Math.round((totalVolume / count) * 1000) / 1000 : 0,\n    processed_date: new Date().toISOString()\n  };\n});\n\n// Sort by total volume descending\nconst sortedResults = groupedResults.sort((a, b) => b.total_volume - a.total_volume);\n\nreturn sortedResults.map(item => ({ json: item }));"
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        "functionCode": "// Generate HTML report from grouped wall data\nconst groupedData = $input.all().map(item => item.json);\n\n// Create summary statistics\nconst totalWallTypes = groupedData.length;\nconst totalWalls = groupedData.reduce((sum, item) => sum + item.wall_count, 0);\nconst totalVolume = groupedData.reduce((sum, item) => sum + item.total_volume, 0);\nconst avgVolumePerWall = totalWalls > 0 ? Math.round((totalVolume / totalWalls) * 1000) / 1000 : 0;\n\nconst sourceFile = $node[\"Setup - Define file paths\"].json[\"revit_file\"];\nconst processedDate = new Date().toLocaleString();\n\n// Generate wall type cards HTML\nconst wallTypeCards = groupedData.map((wallType, index) => {\n  const percentage = totalVolume > 0 ? (wallType.total_volume / totalVolume) * 100 : 0;\n  return `\n    <div class=\"wall-type-card\" style=\"animation-delay: ${index * 0.1}s;\">\n      <div class=\"wall-type-header\">\n        <div class=\"wall-type-name\">${wallType.type_name}</div>\n        <div class=\"wall-count\">${wallType.wall_count} walls</div>\n      </div>\n      <div class=\"wall-metrics\">\n        <div class=\"metric\">\n          <div class=\"metric-label\">Total Volume</div>\n          <div class=\"metric-value\">${wallType.total_volume.toFixed(3)} m³</div>\n        </div>\n        <div class=\"metric\">\n          <div class=\"metric-label\">Average Volume</div>\n          <div class=\"metric-value\">${wallType.average_volume.toFixed(3)} m³</div>\n        </div>\n        <div class=\"metric\">\n          <div class=\"metric-label\">Percentage</div>\n          <div class=\"metric-value\">${percentage.toFixed(1)}%</div>\n        </div>\n      </div>\n      <div class=\"volume-bar\">\n        <div class=\"volume-fill\" style=\"width: ${percentage}%;\"></div>\n      </div>\n    </div>`;\n}).join('');\n\n// Generate complete HTML\nconst htmlContent = `<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Quantity Take Off Report</title>\n    <style>\n        * {\n            margin: 0;\n            padding: 0;\n            box-sizing: border-box;\n        }\n\n        body {\n            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);\n            min-height: 100vh;\n            padding: 20px;\n        }\n\n        .container {\n            max-width: 1000px;\n            margin: 0 auto;\n            background: rgba(255, 255, 255, 0.95);\n            border-radius: 20px;\n            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);\n            overflow: hidden;\n            backdrop-filter: blur(10px);\n        }\n\n        .header {\n            background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);\n            color: white;\n            padding: 30px;\n            text-align: center;\n        }\n\n        .header h1 {\n            font-size: 2.2rem;\n            margin-bottom: 8px;\n        }\n\n        .header p {\n            font-size: 1rem;\n            opacity: 0.9;\n        }\n\n        .summary-cards {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n            gap: 15px;\n            padding: 30px;\n            background: #f8f9fa;\n        }\n\n        .summary-card {\n            background: white;\n            padding: 20px;\n            border-radius: 12px;\n            text-align: center;\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);\n            transition: transform 0.3s ease;\n            border-left: 4px solid;\n        }\n\n        .summary-card:hover {\n            transform: translateY(-3px);\n        }\n\n        .summary-card.types { border-left-color: #e74c3c; }\n        .summary-card.walls { border-left-color: #3498db; }\n        .summary-card.volume { border-left-color: #2ecc71; }\n        .summary-card.average { border-left-color: #f39c12; }\n\n        .summary-card h3 {\n            color: #2c3e50;\n            font-size: 0.8rem;\n            text-transform: uppercase;\n            letter-spacing: 1px;\n            margin-bottom: 8px;\n        }\n\n        .summary-card .value {\n            font-size: 1.8rem;\n            font-weight: bold;\n            color: #2c3e50;\n            margin-bottom: 4px;\n        }\n\n        .summary-card .unit {\n            color: #7f8c8d;\n            font-size: 0.8rem;\n        }\n\n        .content {\n            padding: 30px;\n        }\n\n        .section-title {\n            font-size: 1.5rem;\n            color: #2c3e50;\n            margin-bottom: 20px;\n            text-align: center;\n            position: relative;\n        }\n\n        .section-title::after {\n            content: '';\n            position: absolute;\n            bottom: -8px;\n            left: 50%;\n            transform: translateX(-50%);\n            width: 60px;\n            height: 3px;\n            background: linear-gradient(135deg, #3498db, #e74c3c);\n            border-radius: 2px;\n        }\n\n        .wall-types-grid {\n            display: grid;\n            gap: 15px;\n            margin-top: 20px;\n        }\n\n        .wall-type-card {\n            background: white;\n            border-radius: 12px;\n            padding: 20px;\n            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);\n            transition: all 0.3s ease;\n            border-left: 4px solid #3498db;\n        }\n\n        .wall-type-card:hover {\n            transform: translateY(-2px);\n            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);\n        }\n\n        .wall-type-header {\n            display: flex;\n            justify-content: space-between;\n            align-items: center;\n            margin-bottom: 15px;\n        }\n\n        .wall-type-name {\n            font-size: 1.1rem;\n            font-weight: bold;\n            color: #2c3e50;\n        }\n\n        .wall-count {\n            background: linear-gradient(135deg, #3498db, #2980b9);\n            color: white;\n            padding: 6px 12px;\n            border-radius: 15px;\n            font-size: 0.8rem;\n            font-weight: bold;\n        }\n\n        .wall-metrics {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));\n            gap: 10px;\n        }\n\n        .metric {\n            text-align: center;\n            padding: 12px;\n            background: #f8f9fa;\n            border-radius: 8px;\n        }\n\n        .metric-label {\n            font-size: 0.7rem;\n            color: #6c757d;\n            text-transform: uppercase;\n            letter-spacing: 0.5px;\n            margin-bottom: 4px;\n        }\n\n        .metric-value {\n            font-size: 1rem;\n            font-weight: bold;\n            color: #2c3e50;\n        }\n\n        .volume-bar {\n            width: 100%;\n            height: 6px;\n            background: #e9ecef;\n            border-radius: 3px;\n            margin-top: 12px;\n            overflow: hidden;\n        }\n\n        .volume-fill {\n            height: 100%;\n            background: linear-gradient(90deg, #3498db, #2ecc71);\n            border-radius: 3px;\n            transition: width 0.8s ease;\n        }\n\n        .footer {\n            background: #2c3e50;\n            color: white;\n            padding: 20px;\n            text-align: center;\n            font-size: 0.9rem;\n        }\n\n        .footer-info {\n            display: grid;\n            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));\n            gap: 15px;\n            margin-bottom: 15px;\n        }\n\n        .footer-item strong {\n            display: block;\n            margin-bottom: 4px;\n            color: #3498db;\n        }\n\n        @media (max-width: 768px) {\n            .header h1 { font-size: 1.8rem; }\n            .summary-cards { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); padding: 20px; }\n            .content { padding: 20px; }\n            .wall-type-header { flex-direction: column; align-items: flex-start; gap: 8px; }\n        }\n    </style>\n</head>\n<body>\n    <div class=\"container\">\n        <div class=\"header\">\n            <h1>📊 Quantity Take Off Report</h1>\n            <p>Wall analysis and volume calculations from Revit data</p>\n        </div>\n\n        <div class=\"summary-cards\">\n            <div class=\"summary-card types\">\n                <h3>Wall Types</h3>\n                <div class=\"value\">${totalWallTypes}</div>\n                <div class=\"unit\">Different Types</div>\n            </div>\n            <div class=\"summary-card walls\">\n                <h3>Total Walls</h3>\n                <div class=\"value\">${totalWalls}</div>\n                <div class=\"unit\">Wall Elements</div>\n            </div>\n            <div class=\"summary-card volume\">\n                <h3>Total Volume</h3>\n                <div class=\"value\">${totalVolume.toFixed(3)}</div>\n                <div class=\"unit\">m³</div>\n            </div>\n            <div class=\"summary-card average\">\n                <h3>Average Volume</h3>\n                <div class=\"value\">${avgVolumePerWall.toFixed(3)}</div>\n                <div class=\"unit\">m³ per wall</div>\n            </div>\n        </div>\n\n        <div class=\"content\">\n            <h2 class=\"section-title\">Wall Types Breakdown</h2>\n            <div class=\"wall-types-grid\">\n                ${wallTypeCards}\n            </div>\n        </div>\n\n        <div class=\"footer\">\n            <div class=\"footer-info\">\n                <div class=\"footer-item\">\n                    <strong>Source File:</strong>\n                    ${sourceFile.split('\\\\').pop()}\n                </div>\n                <div class=\"footer-item\">\n                    <strong>Processed Date:</strong>\n                    ${processedDate}\n                </div>\n                <div class=\"footer-item\">\n                    <strong>Generated By:</strong>\n                    n8n Workflow Pipeline\n                </div>\n            </div>\n            <p style=\"margin-top: 15px; opacity: 0.7;\">\n                Data extracted from Revit and processed through automated ETL pipeline.\n            </p>\n        </div>\n    </div>\n</body>\n</html>`;\n\n// Create filename based on source file\nconst sourceBasename = sourceFile.replace(/\\.[^/.]+$/, \"\"); // Remove extension\nconst outputFilename = sourceBasename + \"_quantity_takeoff_report.html\";\n\n// Create proper binary data structure for n8n writeBinaryFile node\nconst binaryData = {\n  data: Buffer.from(htmlContent, 'utf8'),\n  mimeType: 'text/html',\n  fileName: outputFilename.split('\\\\').pop() // Get just filename without path\n};\n\n// Return data with proper binary structure\nreturn [{\n  json: {\n    filename: outputFilename,\n    summary: {\n      total_wall_types: totalWallTypes,\n      total_walls: totalWalls,\n      total_volume: Math.round(totalVolume * 1000) / 1000,\n      average_volume_per_wall: avgVolumePerWall,\n      processed_at: new Date().toISOString(),\n      source_file: sourceFile\n    },\n    grouped_data: groupedData,\n    message: `Generated HTML report for ${totalWallTypes} wall types (${totalWalls} total walls)`,\n    htmlContent: htmlContent\n  },\n  binary: {\n    data: binaryData\n  }\n}];"
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        "fileName": "={{ $json.filename }}"
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              "name": "final_message",
              "type": "string",
              "value": "={{ $node[\"Transform - Generate HTML Report\"].json.message }}. File saved as: {{ $node[\"Transform - Generate HTML Report\"].json.filename }}"
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        "content": "## 🔷 EXTRACT Phase\n\n**E**xtract data from Revit file:\n1. Setup file paths\n2. Run Revit converter (RVT → Excel)\n3. Check if conversion succeeded\n4. Read Excel file from disk\n5. Parse Excel into structured data"
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        "content": "## 🔷 TRANSFORM Phase\n\n**T**ransform raw data:\n1. Filter ONLY records with 'Category : String' = 'OST_Walls'\n2. Clean data: extract ID, Type Name, Volume\n3. Group by 'Type Name : String'\n4. Sum 'Volume : Double' for each group\n5. Calculate statistics per group"
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      "parameters": {
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        "height": 520,
        "content": "## 🔷 LOAD Phase\n\n**L**oad processed data as HTML report:\n1. Generate beautiful HTML report with embedded CSS\n2. Include summary statistics cards\n3. Display grouped data with visual progress bars\n4. Save as HTML file for easy viewing\n5. Results include:\n   - Interactive dashboard design\n   - Summary statistics\n   - Grouped data by Type Name\n   - Visual volume comparisons\n   - Professional styling"
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      "parameters": {
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        "width": 2800,
        "height": 720,
        "content": "# ETL with CAD (BIM)  \n**Extract. Transform. Load — the future of data processing in construction**\n\nETL (Extract, Transform, Load) is a time-tested and universal approach at the heart of every mature digital infrastructure. When applied to CAD and BIM data, it becomes not just relevant — but essential.\nETL is more than just a technical process. It’s a mindset shift — one that takes BIM out of the siloed world of 3D modeling and into the open world of transparent, interoperable, and machine-readable data. It is this paradigm that powers platforms like [DataDrivenConstruction.io](https://datadrivenconstruction.io) and drives the future of digital transformation in the built environment.\n"
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