चारों भुजाओं और एक विकर्ण (diagonal) की लंबाई दर्ज करें।

विकर्ण p (${unitLabel}): `; } else if (shape === 'shoelace') { html = `

भूखंड के प्रत्येक कोने के X और Y निर्देशांक दर्ज करें। निर्देशांक वामावर्त (counter-clockwise) या दक्षिणावर्त (clockwise) क्रम में दर्ज करें।

`; this.coordPoints = 3; } container.innerHTML = html; if (shape === 'shoelace') { this.renderCoordInputs(); document.getElementById('addCoordBtn').addEventListener('click', () => this.addCoordPoint()); document.getElementById('removeCoordBtn').addEventListener('click', () => this.removeCoordPoint()); } document.getElementById('results').innerHTML = ''; } catch (error) { console.error('Error updating inputs:', error); AccessibilityManager.announceError('इनपुट फ़ील्ड अपडेट करने में त्रुटि'); } } addCoordPoint() { this.coordPoints++; this.renderCoordInputs(); } removeCoordPoint() { if (this.coordPoints > 3) { this.coordPoints--; this.renderCoordInputs(); } else { AccessibilityManager.announceError('न्यूनतम 3 कोने आवश्यक हैं'); } } renderCoordInputs() { const container = document.getElementById('coord-inputs-container'); if (!container) return; let html = ''; const unitLabel = this.currentUnit === 'feet' ? 'फीट' : this.currentUnit === 'meter' ? 'मीटर' : 'इंच'; for (let i = 1; i <= this.coordPoints; i++) { html += ` `; } container.innerHTML = html; } convertToFeet(value) { if(this.currentUnit === 'meter') return value * 3.28084; if(this.currentUnit === 'inch') return value / 12; return value; } calculateTriangleArea(a, b, c) { if (a + b <= c || a + c <= b || b + c <= a) return 0; const s = (a + b + c) / 2; return Math.sqrt(s * (s - a) * (s - b) * (s - c)); } validateInput(value, fieldName) { if (isNaN(value) || value <= 0) { throw new InputValidationError(fieldName, 'सकारात्मक संख्या'); } return true; } validateTriangleSides(a, b, c) { const sides = [a, b, c].sort((x, y) => x - y); if (sides[0] + sides[1] <= sides[2]) { throw new ShapeValidationError( 'त्रिभुज', 'दो सबसे छोटी भुजाओं का योग तीसरी भुजा से अधिक होना चाहिए' ); } } calculateArea() { const shape = document.getElementById('shape').value; let area_sqft = 0; let errorMsg = ''; const calculateBtn = document.getElementById('calculateBtn'); const originalText = calculateBtn.innerHTML; calculateBtn.innerHTML = ' Calculating...'; calculateBtn.disabled = true; // Use setTimeout to allow UI to update setTimeout(() => { try { if(shape === 'rectangle'){ const l = this.convertToFeet(parseFloat(document.getElementById('length').value)); const w = this.convertToFeet(parseFloat(document.getElementById('width').value)); this.validateInput(l, 'लंबाई'); this.validateInput(w, 'चौड़ाई'); area_sqft = l * w; } else if(shape === 'square'){ const s = this.convertToFeet(parseFloat(document.getElementById('side').value)); this.validateInput(s, 'भुजा'); area_sqft = s * s; } else if(shape === 'circle'){ const r = this.convertToFeet(parseFloat(document.getElementById('radius').value)); this.validateInput(r, 'त्रिज्या'); area_sqft = Math.PI * r * r; } else if(shape === 'triangle'){ const a = this.convertToFeet(parseFloat(document.getElementById('a').value)); const b = this.convertToFeet(parseFloat(document.getElementById('b').value)); const c = this.convertToFeet(parseFloat(document.getElementById('c').value)); this.validateInput(a, 'भुजा a'); this.validateInput(b, 'भुजा b'); this.validateInput(c, 'भुजा c'); this.validateTriangleSides(a, b, c); area_sqft = this.calculateTriangleArea(a, b, c); } else if(shape === 'quadrilateral'){ const a = this.convertToFeet(parseFloat(document.getElementById('a').value)); const b = this.convertToFeet(parseFloat(document.getElementById('b').value)); const c = this.convertToFeet(parseFloat(document.getElementById('c').value)); const d = this.convertToFeet(parseFloat(document.getElementById('d').value)); const p = this.convertToFeet(parseFloat(document.getElementById('p').value)); this.validateInput(a, 'भुजा a'); this.validateInput(b, 'भुजा b'); this.validateInput(c, 'भुजा c'); this.validateInput(d, 'भुजा d'); this.validateInput(p, 'विकर्ण p'); const a1 = this.calculateTriangleArea(a, b, p); const a2 = this.calculateTriangleArea(c, d, p); if(a1 === 0 || a2 === 0) { throw new ShapeValidationError( 'चतुर्भुज', 'विकर्ण के साथ बनने वाले त्रिभुज अमान्य हैं' ); } area_sqft = a1 + a2; } else if (shape === 'shoelace') { let coords = []; for(let i = 1; i <= this.coordPoints; i++){ const x = this.convertToFeet(parseFloat(document.getElementById(`x${i}`).value)); const y = this.convertToFeet(parseFloat(document.getElementById(`y${i}`).value)); if (isNaN(x) || isNaN(y)) { throw new InputValidationError(`कोना ${i}`, 'वैध निर्देशांक'); } coords.push({x, y}); } let s1 = 0, s2 = 0; for (let i = 0; i < coords.length - 1; i++){ s1 += coords[i].x * coords[i+1].y; s2 += coords[i].y * coords[i+1].x; } s1 += coords[coords.length-1].x * coords[0].y; s2 += coords[coords.length-1].y * coords[0].x; area_sqft = 0.5 * Math.abs(s1 - s2); } } catch (error) { console.error("Calculation Error:", error); if (error instanceof InputValidationError) { errorMsg = `❌ ${error.message}`; AccessibilityManager.announceError(`इनपुट त्रुटि: ${error.fieldName}`); } else if (error instanceof ShapeValidationError) { errorMsg = `❌ ${error.message}`; AccessibilityManager.announceError(`आकार त्रुटि: ${error.shapeType}`); } else { errorMsg = "❌ कृपया सभी मान सही भरें।"; AccessibilityManager.announceError('गणना त्रुटि'); } } this.displayResults(area_sqft, errorMsg, calculateBtn, originalText); }, 100); } displayResults(area_sqft, errorMsg, calculateBtn, originalText) { const resultsDiv = document.getElementById('results'); if (errorMsg) { resultsDiv.innerHTML = ``; } else { const region = this.regionalData[document.getElementById('regionSelector').value]; this.currentAreaResults = { sqft: area_sqft.toFixed(2), m2: (area_sqft * 0.092903).toFixed(2), hectare: (area_sqft / 107639).toFixed(4), acre: (area_sqft / 43560).toFixed(4), local: {} }; let regionalRows = ''; if (region.local_units) { for (const key in region.local_units) { const unit = region.local_units[key]; const value = (area_sqft / unit.sqft).toFixed(4); this.currentAreaResults.local[key] = { value: value, name: unit.name, english_name: unit.english_name }; regionalRows += ` `; } } if (region.guntha_sqft) { const gunthaValue = (area_sqft / region.guntha_sqft).toFixed(4); this.currentAreaResults.guntha = gunthaValue; regionalRows += ` `; } regionalRows += ` `; resultsDiv.innerHTML = ` ${regionalRows} `; AccessibilityManager.announceToScreenReader( `गणना पूरी हुई। क्षेत्रफल ${this.currentAreaResults.sqft} वर्ग फीट है` ); } calculateBtn.innerHTML = originalText; calculateBtn.disabled = false; } updateConversionUnits() { const regionKey = document.getElementById('regionSelectorConvert').value; const region = this.regionalData[regionKey]; const fromUnitSelect = document.getElementById('fromUnit'); const toUnitSelect = document.getElementById('toUnit'); let optionsHTML = ` वर्ग फीट वर्ग मीटर एकड़ हेक्टेयर गुंठा `; if (region.local_units) { for (const key in region.local_units) { const unit = region.local_units[key]; optionsHTML += `${unit.name}`; } } fromUnitSelect.innerHTML = optionsHTML; toUnitSelect.innerHTML = optionsHTML; fromUnitSelect.value = 'sqft'; toUnitSelect.value = 'sqm'; } convertUnits() { const v = parseFloat(document.getElementById('convertValue').value); const f = document.getElementById('fromUnit').value; const t = document.getElementById('toUnit').value; const resDiv = document.getElementById('convertResults'); try { if (isNaN(v) || v <= 0) { throw new InputValidationError('मान', 'सकारात्मक संख्या'); } const regionKey = document.getElementById('regionSelectorConvert').value; const region = this.regionalData[regionKey]; const conv = { sqft: 1, sqm: 10.7639, acre: 43560, hectare: 107639, guntha: region.guntha_sqft }; const names = { sqft: 'वर्ग फीट', sqm: 'वर्ग मीटर', acre: 'एकड़', hectare: 'हेक्टेयर', guntha: 'गुंठा' }; if (region.local_units && region.local_units[f]) { conv[f] = region.local_units[f].sqft; names[f] = region.local_units[f].name; } if (region.local_units && region.local_units[t]) { conv[t] = region.local_units[t].sqft; names[t] = region.local_units[t].name; } if (!conv[f] || !conv[t]) { throw new CalculationError('चुनी गई इकाई इस राज्य के लिए मान्य नहीं है', 'UNIT_VALIDATION'); } const result = (v * conv[f]) / conv[t]; // Calculate values for all units const sqftValue = v * conv[f]; this.currentConversionResults = { sqft: sqftValue.toFixed(6), sqm: (sqftValue / 10.7639).toFixed(6), acre: (sqftValue / 43560).toFixed(6), hectare: (sqftValue / 107639).toFixed(6), guntha: (sqftValue / region.guntha_sqft).toFixed(6), local: {} }; if (region.local_units) { for (const key in region.local_units) { const unit = region.local_units[key]; this.currentConversionResults.local[key] = { value: (sqftValue / unit.sqft).toFixed(6), name: unit.name, english_name: unit.english_name }; } } let allUnitsHTML = ''; // Standard units allUnitsHTML += ` `; // Local units if (region.local_units) { for (const key in this.currentConversionResults.local) { const unit = this.currentConversionResults.local[key]; allUnitsHTML += ` `; } } resDiv.innerHTML = ` ${allUnitsHTML} `; AccessibilityManager.announceToScreenReader( `रूपांतरण पूरा हुआ: ${result.toFixed(2)} ${names[t]}` ); } catch (error) { console.error("Conversion Error:", error); if (error instanceof InputValidationError) { resDiv.innerHTML = ``; AccessibilityManager.announceError('रूपांतरण त्रुटि: अमान्य इनपुट'); } else if (error instanceof CalculationError) { resDiv.innerHTML = ``; AccessibilityManager.announceError('रूपांतरण त्रुटि: इकाई मान्य नहीं'); } else { resDiv.innerHTML = ''; AccessibilityManager.announceError('रूपांतरण त्रुटि'); } } } clearAll() { document.getElementById('inputs').innerHTML = ''; document.getElementById('results').innerHTML = ''; this.updateInputs(); AccessibilityManager.announceToScreenReader('सभी फ़ील्ड रीसेट हो गए हैं'); } clearConvert() { document.getElementById('convertValue').value = ''; document.getElementById('convertResults').innerHTML = ''; AccessibilityManager.announceToScreenReader('रूपांतरण फ़ील्ड रीसेट हो गए हैं'); } async downloadAreaPDF() { if (!this.currentAreaResults || !this.currentAreaResults.sqft) { alert('कृपया पहले क्षेत्रफल की गणना करें!'); return; } const { jsPDF } = window.jspdf; const pdf = new jsPDF('p', 'mm', 'a4'); const pageWidth = pdf.internal.pageSize.getWidth(); const pageHeight = pdf.internal.pageSize.getHeight(); const margin = 15; const contentWidth = pageWidth - 2 * margin; pdf.setFillColor(31, 77, 114); pdf.rect(0, 0, pageWidth, 25, 'F'); pdf.setTextColor(255, 255, 255); pdf.setFontSize(18); pdf.text('LAND AREA CALCULATION RESULT', pageWidth / 2, 15, { align: 'center' }); pdf.setFontSize(10); const now = new Date(); const dateStr = now.toLocaleDateString('en-IN'); pdf.text(`Date: ${dateStr}`, margin, 35); const region = this.regionalData[document.getElementById('regionSelector').value]; pdf.text(`Region: ${region.name}`, pageWidth - margin, 35, { align: 'right' }); const shapeSelect = document.getElementById('shape'); const shapeText = shapeSelect.options[shapeSelect.selectedIndex].text; pdf.text(`Land Shape: ${shapeText}`, margin, 45); let yPos = 60; pdf.setDrawColor(31, 77, 114); pdf.setFillColor(240, 244, 248); pdf.rect(margin, yPos, contentWidth, 10, 'F'); pdf.setTextColor(31, 77, 114); pdf.setFontSize(12); pdf.setFont(undefined, 'bold'); pdf.text('Measurement', margin + 5, yPos + 7); pdf.text('Value', pageWidth - margin - 5, yPos + 7, { align: 'right' }); yPos += 15; pdf.setFont(undefined, 'normal'); pdf.setTextColor(0, 0, 0); let results = [ { label: 'Square Feet', value: this.currentAreaResults.sqft, unit: 'sq ft' }, { label: 'Square Meters', value: this.currentAreaResults.m2, unit: 'm²' } ]; if (this.currentAreaResults.local) { for (const key in this.currentAreaResults.local) { const unit = this.currentAreaResults.local[key]; results.push({ label: unit.english_name, value: unit.value, unit: '' }); } } if (this.currentAreaResults.guntha) { results.push({ label: 'Guntha', value: this.currentAreaResults.guntha, unit: '' }); } results.push( { label: 'Acres', value: this.currentAreaResults.acre, unit: 'acre' }, { label: 'Hectares', value: this.currentAreaResults.hectare, unit: 'hectare' } ); results.forEach(result => { if (yPos > pageHeight - 50) { pdf.addPage(); yPos = margin; } pdf.setFontSize(10); pdf.text(result.label, margin + 5, yPos + 5); pdf.text(`${result.value} ${result.unit}`, pageWidth - margin - 5, yPos + 5, { align: 'right' }); pdf.setDrawColor(200, 200, 200); pdf.line(margin, yPos + 8, pageWidth - margin, yPos + 8); yPos += 10; }); yPos += 10; pdf.setDrawColor(100, 100, 100); pdf.line(margin, yPos, pageWidth - margin, yPos); yPos += 5; pdf.setFontSize(12); pdf.setTextColor(31, 77, 114); pdf.setFont(undefined, 'bold'); pdf.text('Disclaimer for Advance Land Area Calculator', margin, yPos); yPos += 8; pdf.setFontSize(10); pdf.setTextColor(0, 0, 0); pdf.setFont(undefined, 'normal'); const disclaimerText = "This calculator provides approximate area estimates only and is for informational purposes. Always consult the official government land records (Patwari/Revenue Department) for the definitive and legally valid measurement of your land. Not valid for official property transactions or legal purposes."; const splitDisclaimer = pdf.splitTextToSize(disclaimerText, pageWidth - 2 * margin); pdf.text(splitDisclaimer, margin, yPos); yPos += (splitDisclaimer.length * 5) + 5; pdf.setDrawColor(100, 100, 100); pdf.line(margin, yPos, pageWidth - margin, yPos); pdf.save("Land-Area-Calculation-Result.pdf"); AccessibilityManager.announceToScreenReader('PDF डाउनलोड शुरू हुआ'); } async downloadConvertPDF() { const convertResults = document.getElementById("convertResults"); if (convertResults.innerHTML.trim() === "" || convertResults.querySelector('.error')) { alert('कृपया पहले इकाइयों को परिवर्तित करें!'); return; } const { jsPDF } = window.jspdf; const pdf = new jsPDF('p', 'mm', 'a4'); const pageWidth = pdf.internal.pageSize.getWidth(); const pageHeight = pdf.internal.pageSize.getHeight(); const margin = 15; pdf.setFillColor(31, 77, 114); pdf.rect(0, 0, pageWidth, 25, 'F'); pdf.setTextColor(255, 255, 255); pdf.setFontSize(18); pdf.text('UNIT CONVERSION RESULT', pageWidth / 2, 15, { align: 'center' }); pdf.setFontSize(10); const now = new Date(); const dateStr = now.toLocaleDateString('en-IN'); pdf.text(`Date: ${dateStr}`, margin, 35); const region = this.regionalData[document.getElementById('regionSelectorConvert').value]; pdf.text(`Region: ${region.name}`, pageWidth - margin, 35, { align: 'right' }); const fromUnit = document.getElementById('fromUnit'); const toUnit = document.getElementById('toUnit'); const fromText = fromUnit.options[fromUnit.selectedIndex].text; const toText = toUnit.options[toUnit.selectedIndex].text; const value = document.getElementById('convertValue').value; pdf.text(`Conversion: ${value} ${fromText} → ${toText}`, margin, 50); let yPos = 70; pdf.setDrawColor(31, 77, 114); pdf.setFillColor(240, 244, 248); pdf.rect(margin, yPos, pageWidth - 2 * margin, 10, 'F'); pdf.setTextColor(31, 77, 114); pdf.setFontSize(12); pdf.setFont(undefined, 'bold'); pdf.text('Unit', margin + 5, yPos + 7); pdf.text('Value', pageWidth - margin - 5, yPos + 7, { align: 'right' }); yPos += 15; pdf.setFont(undefined, 'normal'); pdf.setTextColor(0, 0, 0); let results = [ { label: 'Square Feet', value: this.currentConversionResults.sqft, unit: 'sq ft' }, { label: 'Square Meters', value: this.currentConversionResults.sqm, unit: 'm²' }, { label: 'Acres', value: this.currentConversionResults.acre, unit: 'acre' }, { label: 'Hectares', value: this.currentConversionResults.hectare, unit: 'hectare' }, { label: 'Guntha', value: this.currentConversionResults.guntha, unit: 'guntha' } ]; if (this.currentConversionResults.local) { for (const key in this.currentConversionResults.local) { const unit = this.currentConversionResults.local[key]; results.push({ label: unit.english_name, value: unit.value, unit: '' }); } } results.forEach(result => { if (yPos > pageHeight - 50) { pdf.addPage(); yPos = margin; } pdf.setFontSize(10); pdf.text(result.label, margin + 5, yPos + 5); pdf.text(`${result.value} ${result.unit}`, pageWidth - margin - 5, yPos + 5, { align: 'right' }); pdf.setDrawColor(200, 200, 200); pdf.line(margin, yPos + 8, pageWidth - margin, yPos + 8); yPos += 10; }); yPos += 10; pdf.setDrawColor(100, 100, 100); pdf.line(margin, yPos, pageWidth - margin, yPos); yPos += 5; pdf.setFontSize(12); pdf.setTextColor(31, 77, 114); pdf.setFont(undefined, 'bold'); pdf.text('Disclaimer for Advance Land Area Calculator', margin, yPos); yPos += 8; pdf.setFontSize(10); pdf.setTextColor(0, 0, 0); pdf.setFont(undefined, 'normal'); const disclaimerText = "This calculator provides approximate area estimates only and is for informational purposes. Always consult the official government land records (Patwari/Revenue Department) for the definitive and legally valid measurement of your land. Not valid for official property transactions or legal purposes."; const splitDisclaimer = pdf.splitTextToSize(disclaimerText, pageWidth - 2 * margin); pdf.text(splitDisclaimer, margin, yPos); yPos += (splitDisclaimer.length * 5) + 5; pdf.setDrawColor(100, 100, 100); pdf.line(margin, yPos, pageWidth - margin, yPos); pdf.save("Unit-Conversion-Result.pdf"); AccessibilityManager.announceToScreenReader('PDF डाउनलोड शुरू हुआ'); } } // Initialize the calculator when DOM is loaded document.addEventListener('DOMContentLoaded', function() { const calculator = new LandAreaCalculator(); });