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/** * AdvancedGeometryService - Avancerede geometriberegninger for tagarbejde * Inkluderer højdeberegninger, SVG illustrationer og integration med materialer */ class AdvancedGeometryService { constructor(databaseService) { this.db = databaseService; } /** * Beregn udvidede geometridata inklusiv højder og materialer */ async calculateAdvancedGeometry(geometryInput) { try { const { roofType = 'betontegl', // Default tagtype width, length, roofLength = length, roofWidth = width, roofPitch = 30, pitch = roofPitch, ridgeHeight = null, // Højde fra stern til kip (lodret mål) wallHeight = 0, // Væghøjde til tagkant hasComplexFeatures = false } = geometryInput; // Normalisér parametre const normalizedLength = roofLength || length; const normalizedWidth = roofWidth || width; const normalizedPitch = pitch || roofPitch; // Basis areal beregning const baseArea = normalizedLength * normalizedWidth; // Beregn forskellige højder og længder const heightCalculations = this.calculateHeights( normalizedWidth, normalizedLength, normalizedPitch, ridgeHeight, wallHeight ); // Beregn vindskedelængder baseret på geometri const windboardCalculations = this.calculateWindboards( normalizedLength, normalizedWidth, roofType, heightCalculations ); // Beregn materialekvantiteter baseret på geometri const materialQuantities = this.calculateMaterialQuantities( baseArea, heightCalculations, windboardCalculations, roofType ); // Generer SVG illustration const svgIllustration = this.generateSVGIllustration( normalizedLength, normalizedWidth, heightCalculations, roofType ); const result = { basicDimensions: { length: normalizedLength, width: normalizedWidth, baseArea: Math.round(baseArea * 100) / 100, roofType: roofType, pitch: normalizedPitch }, heightCalculations, windboardCalculations, materialQuantities, svgIllustration, complexity: this.calculateComplexityFactor(geometryInput), estimatedWorkHours: this.estimateWorkHours(baseArea, roofType, hasComplexFeatures), recommendations: this.generateRecommendations(baseArea, roofType, heightCalculations) }; logger.info('Advanced geometry calculated', { roofType, baseArea, totalMaterialArea: materialQuantities.totalCoverage }); return result; } catch (error) { logger.error('Error calculating advanced geometry:', error); throw error; } } /** * Beregn forskellige højder på taget */ calculateHeights(roofWidth, roofLength, roofPitch, ridgeHeight = null, wallHeight = 0) { const pitchRadians = (roofPitch * Math.PI) / 180; // Hvis ridgeHeight er givet, brug det, ellers beregn fra pitch const calculatedRidgeHeight = ridgeHeight || (roofWidth / 2) * Math.tan(pitchRadians); // Samlede højder const totalRidgeHeight = wallHeight + calculatedRidgeHeight; const eaveHeight = wallHeight; // Højde til tagkant // Skrålængde (rafter length) const rafterLength = (roofWidth / 2) / Math.cos(pitchRadians); // Tagflade areal (justeret for hældning) const slopeArea = roofLength * rafterLength * 2; // Begge sider af taget return { ridgeHeight: Math.round(calculatedRidgeHeight * 100) / 100, // Højde fra stern til kip totalRidgeHeight: Math.round(totalRidgeHeight * 100) / 100, // Total højde fra jord eaveHeight: Math.round(eaveHeight * 100) / 100, // Højde til tagkant rafterLength: Math.round(rafterLength * 100) / 100, // Spær længde slopeArea: Math.round(slopeArea * 100) / 100, // Faktisk tagflade areal pitchAngle: roofPitch, measurements: { wallHeight, roofSpan: roofWidth, roofRun: roofLength, rise: calculatedRidgeHeight, run: roofWidth / 2 } }; } /** * Beregn vindskedelængder */ calculateWindboards(roofLength, roofWidth, roofType, heightCalculations) { const { rafterLength } = heightCalculations; // Vindskeder langs gavlene (følger taghældningen) const gableBoardLength = rafterLength * 2; // Begge sider af gavlen const gableBoardTotal = gableBoardLength * 2; // Begge gavle // Vindskeder langs langsiderne (vandret) const eavesBoardLength = roofLength * 2; // Begge langsider // Tagryg vindskede (øverst på taget) const ridgeBoardLength = roofLength; // Total vindskedelængde const totalWindboardLength = gableBoardTotal + eavesBoardLength + ridgeBoardLength; return { gableBoards: { lengthPerGable: Math.round(gableBoardLength * 100) / 100, totalLength: Math.round(gableBoardTotal * 100) / 100, description: 'Vindskeder langs gavlene (følger taghældningen)' }, eavesBoards: { lengthPerSide: roofLength, totalLength: Math.round(eavesBoardLength * 100) / 100, description: 'Vindskeder langs tagkanterne (vandrette)' }, ridgeBoard: { length: Math.round(ridgeBoardLength * 100) / 100, description: 'Vindskede langs tagryggen' }, totalLength: Math.round(totalWindboardLength * 100) / 100, recommendedDimensions: this.getRecommendedWindboardDimensions(roofType), cuttingAngles: { gableBoardAngle: heightCalculations.pitchAngle, eavesBoardAngle: 0, // Vandrette ridgeBoardAngle: 0 } }; } /** * Beregn materialekvantiteter baseret på geometri */ calculateMaterialQuantities(baseArea, heightCalculations, windboardCalculations, roofType) { const { slopeArea } = heightCalculations; // Basis materialer med spild/overlap const roofCovering = Math.ceil(slopeArea * 1.1); // 10% spild const underlay = Math.ceil(slopeArea * 1.05); // 5% overlap const insulation = Math.ceil(baseArea * 1.02); // 2% spild // Vindskeder const windboards = Math.ceil(windboardCalculations.totalLength * 1.05); // 5% spild // Beslag og fastgørelse const fasteners = this.calculateFasteners(slopeArea, roofType); // Specialmaterialer baseret på tagtype const specialMaterials = this.getSpecialMaterials(roofType, slopeArea, heightCalculations); return { roofCovering: { area: roofCovering, unit: 'm²', description: 'Tagdækning (inkl. 10% spild)' }, underlay: { area: underlay, unit: 'm²', description: 'Undertag (inkl. 5% overlap)' }, insulation: { area: insulation, unit: 'm²', description: 'Isolering' }, windboards: { length: windboards, unit: 'løbm', description: 'Vindskeder total', breakdown: windboardCalculations }, fasteners, specialMaterials, totalCoverage: roofCovering, wasteFactors: { roofCovering: 0.1, underlay: 0.05, insulation: 0.02, windboards: 0.05 } }; } /** * Beregn beslag og fastgørelse */ calculateFasteners(area, roofType) { const fasteners = {}; switch (roofType.toLowerCase()) { case 'betontegl': fasteners.hooks = Math.ceil(area * 0.8); // Tagcentraler fasteners.screws = Math.ceil(area * 6); // Skruer til vindskeder break; case 'b7': case 'b6': fasteners.screws = Math.ceil(area * 8); // Tagskruer til plader fasteners.ridgeCap = Math.ceil(area * 0.1); // Ryggesting break; case 'vingetegl': fasteners.hooks = Math.ceil(area * 0.7); fasteners.mortar = Math.ceil(area * 2); // kg mørtel break; default: fasteners.screws = Math.ceil(area * 6); break; } return fasteners; } /** * Hent specialmaterialer baseret på tagtype */ getSpecialMaterials(roofType, area, heightCalculations) { const specialMaterials = {}; switch (roofType.toLowerCase()) { case 'betontegl': specialMaterials.ridgeTiles = Math.ceil(heightCalculations.measurements.roofRun / 0.33); // Rygstenslængde specialMaterials.ventilation = Math.ceil(area / 50); // Ventilationsziegel break; case 'b7': case 'b6': specialMaterials.ridgeCapping = Math.ceil(heightCalculations.measurements.roofRun); specialMaterials.flashingStrips = Math.ceil(heightCalculations.measurements.roofRun * 2); break; case 'vingetegl': specialMaterials.ridgeTiles = Math.ceil(heightCalculations.measurements.roofRun / 0.30); specialMaterials.hipTiles = Math.ceil(area / 100); // Skrånningsten hvis relevante break; } return specialMaterials; } /** * Generer SVG illustration af taget med mål */ generateSVGIllustration(roofLength, roofWidth, heightCalculations, roofType) { const { ridgeHeight, rafterLength } = heightCalculations; // SVG dimensioner (skaleret) const svgWidth = 400; const svgHeight = 300; const scale = Math.min(svgWidth / (roofWidth + 2), svgHeight / (ridgeHeight + roofWidth/2 + 2)); // Centrering const centerX = svgWidth / 2; const centerY = svgHeight - 50; // Skalerede dimensioner const scaledWidth = roofWidth * scale; const scaledHeight = ridgeHeight * scale; const scaledRafterLength = rafterLength * scale; const svgElements = []; // Baggrund svgElements.push(`<rect width="${svgWidth}" height="${svgHeight}" fill="#f8f9fa" stroke="#dee2e6"/>`); // Tag outline (set forfra) const leftX = centerX - scaledWidth / 2; const rightX = centerX + scaledWidth / 2; const topY = centerY - scaledHeight; const bottomY = centerY; // Venstre tagflade svgElements.push(` <path d="M ${leftX} ${bottomY} L ${centerX} ${topY} L ${centerX} ${topY - 10} L ${leftX} ${bottomY - 10} Z" fill="#8B4513" stroke="#654321" stroke-width="2" opacity="0.8"/> `); // Højre tagflade svgElements.push(` <path d="M ${centerX} ${topY} L ${rightX} ${bottomY} L ${rightX} ${bottomY - 10} L ${centerX} ${topY - 10} Z" fill="#A0522D" stroke="#654321" stroke-width="2" opacity="0.8"/> `); // Tagryg svgElements.push(` <line x1="${centerX}" y1="${topY}" x2="${centerX}" y2="${topY - 10}" stroke="#654321" stroke-width="3"/> `); // Målelinjer og tekster // Bredde svgElements.push(` <line x1="${leftX}" y1="${bottomY + 20}" x2="${rightX}" y2="${bottomY + 20}" stroke="#007bff" stroke-width="1" marker-end="url(#arrowhead)" marker-start="url(#arrowhead)"/> <text x="${centerX}" y="${bottomY + 35}" text-anchor="middle" font-size="12" fill="#007bff"> ${roofWidth}m (bredde) </text> `); // Højde (lodret fra stern til kip) svgElements.push(` <line x1="${centerX - 15}" y1="${bottomY}" x2="${centerX - 15}" y2="${topY}" stroke="#dc3545" stroke-width="1" marker-end="url(#arrowhead)" marker-start="url(#arrowhead)"/> <text x="${centerX - 25}" y="${centerY - scaledHeight/2}" text-anchor="middle" font-size="12" fill="#dc3545" transform="rotate(-90, ${centerX - 25}, ${centerY - scaledHeight/2})"> ${ridgeHeight}m (højde) </text> `); // Spærlængde svgElements.push(` <line x1="${leftX}" y1="${bottomY}" x2="${centerX}" y2="${topY}" stroke="#28a745" stroke-width="2" stroke-dasharray="5,5" opacity="0.7"/> <text x="${leftX + 20}" y="${bottomY - scaledHeight/3}" font-size="11" fill="#28a745"> Spær: ${rafterLength}m </text> `); // Pile definitioner const arrowDef = ` <defs> <marker id="arrowhead" markerWidth="10" markerHeight="7" refX="0" refY="3.5" orient="auto"> <polygon points="0 0, 10 3.5, 0 7" fill="#007bff"/> </marker> </defs> `; // Titel og informationer svgElements.push(` <text x="${svgWidth/2}" y="25" text-anchor="middle" font-size="16" font-weight="bold" fill="#333"> ${this.getRoofTypeDisplayName(roofType)} - Geometri </text> `); // Informationsboks const infoY = 50; svgElements.push(` <rect x="10" y="${infoY}" width="120" height="80" fill="white" stroke="#ddd" rx="5"/> <text x="15" y="${infoY + 15}" font-size="11" fill="#666">Areal: ${heightCalculations.slopeArea}m²</text> <text x="15" y="${infoY + 30}" font-size="11" fill="#666">Hældning: ${heightCalculations.pitchAngle}°</text> <text x="15" y="${infoY + 45}" font-size="11" fill="#666">Længde: ${roofLength}m</text> <text x="15" y="${infoY + 60}" font-size="11" fill="#666">Type: ${roofType}</text> `); // Samle SVG const svgContent = ` <svg width="${svgWidth}" height="${svgHeight}" xmlns="http://www.w3.org/2000/svg"> ${arrowDef} ${svgElements.join('\n')} </svg> `; return { svg: svgContent, dimensions: { width: svgWidth, height: svgHeight }, measurements: { roofWidth, roofLength, ridgeHeight, rafterLength, area: heightCalculations.slopeArea } }; } /** * Hent anbefalede vindskededimensioner */ getRecommendedWindboardDimensions(roofType) { const dimensions = { 'betontegl': { width: 25, height: 200, description: '25x200mm træ til betontegl' }, 'b7': { width: 22, height: 175, description: '22x175mm træ til B7 tagplader' }, 'b6': { width: 22, height: 150, description: '22x150mm træ til B6 tagplader' }, 'vingetegl': { width: 25, height: 200, description: '25x200mm træ til vingetegl' }, 'røde_teglsten': { width: 25, height: 225, description: '25x225mm træ til røde teglsten' } }; // Håndter undefined, null eller tomme strings if (!roofType || typeof roofType !== 'string') { return dimensions['betontegl']; } return dimensions[roofType.toLowerCase()] || dimensions['betontegl']; } /** * Beregn kompleksitetsfaktor */ calculateComplexityFactor(geometryInput) { let complexity = 1.0; const { roofType, roofPitch, hasComplexFeatures } = geometryInput; // Tagtype påvirkning switch (roofType?.toLowerCase()) { case 'fladt_tag': complexity *= 0.8; break; case 'skraat_tag': complexity *= 1.0; break; case 'mansard': complexity *= 1.4; break; case 'komplekst': complexity *= 1.6; break; } // Hældning påvirkning if (roofPitch > 45) complexity *= 1.3; else if (roofPitch > 35) complexity *= 1.1; else if (roofPitch < 15) complexity *= 1.2; // Meget flade tage er også svære // Komplekse features if (hasComplexFeatures) complexity *= 1.2; return Math.round(complexity * 100) / 100; } /** * Estimer arbejdstimer */ estimateWorkHours(area, roofType, hasComplexFeatures) { let hoursPerSqm = 0.8; // Basis timer per m² // Juster baseret på tagtype switch (roofType?.toLowerCase()) { case 'betontegl': hoursPerSqm = 1.2; break; case 'b7': hoursPerSqm = 0.9; break; case 'b6': hoursPerSqm = 1.0; break; case 'vingetegl': hoursPerSqm = 1.4; break; case 'røde_teglsten': hoursPerSqm = 1.5; break; } if (hasComplexFeatures) hoursPerSqm *= 1.3; const totalHours = area * hoursPerSqm; return Math.round(totalHours * 10) / 10; } /** * Generer anbefalinger baseret på geometri */ generateRecommendations(area, roofType, heightCalculations) { const recommendations = []; // Areal anbefalinger if (area > 200) { recommendations.push({ type: 'warning', title: 'Stort tagprojekt', message: 'Dette er et stort tagprojekt. Overvej at opdele i faser og sørg for tilstrækkelig mandskab.' }); } // Højde anbefalinger if (heightCalculations.ridgeHeight > 8) { recommendations.push({ type: 'safety', title: 'Høj bygning', message: 'Høj bygning kræver ekstra sikkerhedsforanstaltninger og muligvis stilladsering.' }); } // Hældning anbefalinger if (heightCalculations.pitchAngle > 45) { recommendations.push({ type: 'difficulty', title: 'Stejl taghældning', message: 'Stejl hældning gør arbejdet mere udfordrende. Planlæg ekstra sikkerhed og tid.' }); } // Tagtype specifikke anbefalinger switch (roofType?.toLowerCase()) { case 'betontegl': recommendations.push({ type: 'material', title: 'Betontegl vejledning', message: 'Betontegl kræver præcis måling af tagcentraler. Bestil 5% ekstra tagsten.' }); break; case 'vingetegl': recommendations.push({ type: 'weather', title: 'Vingetegl vejrforhold', message: 'Vingetegl påvirkes af vejr under installation. Undgå arbejde i kraftig vind eller regn.' }); break; } return recommendations; } /** * Hent display navn for tagtype */ getRoofTypeDisplayName(roofType) { const displayNames = { 'betontegl': 'Betontegl', 'b7': 'B7 Tagplader', 'b6': 'B6 Tagplader', 'vingetegl': 'Vingetegl', 'røde_teglsten': 'Røde Teglsten', 'fladt_tag': 'Fladt Tag', 'skraat_tag': 'Skråt Tag', 'mansard': 'Mansardtag', 'komplekst': 'Komplekst Tag' }; return displayNames[roofType?.toLowerCase()] || roofType; } /** * Gem avancerede geometridata */ async saveAdvancedGeometry(projectId, geometryData) { try { const { basicDimensions, heightCalculations, windboardCalculations, materialQuantities, svgIllustration } = geometryData; // Gem i hovedgeometri tabel await this.db.pool.execute(` INSERT INTO roof_geometry ( project_id, roof_type, total_area, roof_pitch, roof_height, length_main, width_main, complexity_factor, estimated_work_hours, created_at, updated_at ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW()) ON DUPLICATE KEY UPDATE roof_type = VALUES(roof_type), total_area = VALUES(total_area), roof_pitch = VALUES(roof_pitch), roof_height = VALUES(roof_height), length_main = VALUES(length_main), width_main = VALUES(width_main), complexity_factor = VALUES(complexity_factor), estimated_work_hours = VALUES(estimated_work_hours), updated_at = NOW() `, [ projectId, basicDimensions.roofType, basicDimensions.baseArea, basicDimensions.pitch, heightCalculations.ridgeHeight, basicDimensions.length, basicDimensions.width, geometryData.complexity, geometryData.estimatedWorkHours ]); // Gem detaljerede data i JSON format await this.db.pool.execute(` INSERT INTO advanced_geometry_data ( project_id, height_calculations, windboard_calculations, material_quantities, svg_illustration, recommendations, created_at ) VALUES (?, ?, ?, ?, ?, ?, NOW()) ON DUPLICATE KEY UPDATE height_calculations = VALUES(height_calculations), windboard_calculations = VALUES(windboard_calculations), material_quantities = VALUES(material_quantities), svg_illustration = VALUES(svg_illustration), recommendations = VALUES(recommendations), updated_at = NOW() `, [ projectId, JSON.stringify(heightCalculations), JSON.stringify(windboardCalculations), JSON.stringify(materialQuantities), JSON.stringify(svgIllustration), JSON.stringify(geometryData.recommendations) ]); logger.info('Advanced geometry data saved', { projectId, roofType: basicDimensions.roofType, area: basicDimensions.baseArea }); return { success: true }; } catch (error) { logger.error('Error saving advanced geometry:', error); throw error; } } } module.exports = AdvancedGeometryService; |