Plate Glass Weight Calculator

Plate Glass Weight Calculator: Accurate Calculations & Insights :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –label-color: #555; –border-color: #ccc; –shadow-color: rgba(0, 0, 0, 0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); margin: 0; padding: 0; line-height: 1.6; display: flex; flex-direction: column; align-items: center; padding-top: 20px; padding-bottom: 40px; } .container { width: 95%; max-width: 960px; background-color: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); display: flex; flex-direction: column; align-items: center; } h1, h2, h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } h1 { font-size: 2.5em; margin-bottom: 10px; } h2 { font-size: 2em; margin-top: 30px; } h3 { font-size: 1.5em; margin-top: 25px; } .summary { font-size: 1.1em; color: #666; margin-bottom: 30px; text-align: center; max-width: 800px; } .loan-calc-container { background-color: #f0f4f8; padding: 25px; border-radius: 8px; border: 1px solid var(–border-color); width: 100%; box-sizing: border-box; margin-bottom: 30px; } .input-group { margin-bottom: 20px; width: 100%; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–label-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 20px); padding: 12px 10px; border: 1px solid var(–border-color); border-radius: 5px; font-size: 1em; box-sizing: border-box; transition: border-color 0.3s ease; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: var(–primary-color); outline: none; } .input-group .helper-text { font-size: 0.85em; color: #777; margin-top: 5px; display: block; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ height: 1.2em; /* Reserve space */ } .error-message.visible { display: block; } button { background-color: var(–primary-color); color: white; padding: 12px 25px; border: none; border-radius: 5px; font-size: 1.1em; cursor: pointer; transition: background-color 0.3s ease, transform 0.2s ease; margin: 5px; } button:hover { background-color: #003366; transform: translateY(-2px); } button.secondary { background-color: #6c757d; } button.secondary:hover { background-color: #5a6268; } .results-container { margin-top: 30px; padding: 25px; background-color: var(–primary-color); color: white; border-radius: 8px; width: 100%; box-sizing: border-box; text-align: center; } .results-container h3 { color: white; margin-bottom: 15px; } #primary-result { font-size: 2.5em; font-weight: bold; margin-bottom: 10px; display: inline-block; /* For background sizing */ padding: 10px 20px; border-radius: 5px; background-color: var(–success-color); } .intermediate-results p { font-size: 1.1em; margin: 8px 0; } .formula-explanation { font-size: 0.9em; color: #e0e0e0; margin-top: 15px; } table { width: 100%; border-collapse: collapse; margin-top: 25px; margin-bottom: 30px; font-size: 0.95em; } th, td { border: 1px solid var(–border-color); padding: 10px 12px; text-align: left; } th { background-color: #e9ecef; color: var(–primary-color); font-weight: bold; } tr:nth-child(even) { background-color: #f8f9fa; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; text-align: left; } .chart-container { margin-top: 25px; background-color: #fff; padding: 20px; border-radius: 8px; border: 1px solid var(–border-color); width: 100%; box-sizing: border-box; text-align: center; } .chart-container canvas { max-width: 100%; height: auto; } .chart-legend { margin-top: 15px; font-size: 0.9em; color: #555; } .chart-legend span { display: inline-block; margin: 0 10px; } .chart-legend .color-box { display: inline-block; width: 15px; height: 15px; margin-right: 5px; vertical-align: middle; border: 1px solid #ccc; } .article-section { margin-top: 40px; width: 100%; text-align: left; background-color: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); box-sizing: border-box; } .article-section p, .article-section ul, .article-section ol { margin-bottom: 20px; } .article-section li { margin-bottom: 10px; } .article-section a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .article-section a:hover { text-decoration: underline; } #related-tools a { color: var(–primary-color); text-decoration: none; display: block; margin-bottom: 10px; font-weight: bold; } #related-tools a:hover { text-decoration: underline; } #related-tools p { font-size: 0.9em; color: #666; } /* Responsive adjustments */ @media (max-width: 768px) { .container { padding: 20px; } h1 { font-size: 2em; } h2 { font-size: 1.7em; } #primary-result { font-size: 2em; } button { width: 100%; margin-bottom: 10px; } button:last-child { margin-bottom: 0; } }

Plate Glass Weight Calculator

Precisely calculate the weight of any piece of plate glass based on its dimensions and material density. Essential for shipping, handling, and structural planning.

Enter the length of the glass piece in meters (m).
Enter the width of the glass piece in meters (m).
Enter the thickness of the glass in meters (m). (e.g., 6mm = 0.006m)
Standard Float Glass (approx. 2500 kg/m³) Annealed Glass (approx. 2400 kg/m³) Tempered Glass (approx. 2550 kg/m³) Laminated Glass (approx. 2600 kg/m³) Other (Enter Manually) Select common glass type or choose 'Other' to input a specific value.
Enter the specific density for your glass type in kilograms per cubic meter (kg/m³).

Your Calculated Glass Weight

Volume:

Area:

Density Used: kg/m³

Weight = Length × Width × Thickness × Density

Dimensions Effect Density Effect
Weight Contribution Analysis by Dimension and Density
Key Input Variables and Units
Variable Meaning Unit Typical Range
Length The longer horizontal dimension of the glass pane. meters (m) 0.1 – 5.0
Width The shorter horizontal dimension of the glass pane. meters (m) 0.1 – 3.0
Thickness The depth of the glass pane. meters (m) 0.003 (3mm) – 0.025 (25mm)
Density Mass per unit volume of the glass material. kilograms per cubic meter (kg/m³) 2400 – 2600

What is Plate Glass Weight Calculation?

{primary_keyword} is the process of determining the mass of a specific sheet or pane of glass. This is crucial in various industries, from manufacturing and construction to logistics and safety. Understanding the exact weight of a plate glass piece is essential for several reasons: efficient transportation planning, safe handling procedures, accurate structural load calculations, and cost estimation for materials and shipping. Essentially, it bridges the gap between the physical dimensions and material properties of glass and its practical, tangible mass.

Anyone who works with glass, from architects and engineers to glazers, fabricators, and logistics managers, needs to understand how to calculate plate glass weight. It's not just about knowing how heavy something is; it's about ensuring safety, optimizing resources, and adhering to regulations. For example, knowing the weight of a large structural glass panel is vital for specifying the correct support systems and lifting equipment. Similarly, a shipping company needs precise weight data to determine freight costs and ensure compliance with weight limits.

A common misconception is that all glass weighs the same for a given size. This isn't true because glass comes in various types with slightly different densities (e.g., tempered vs. laminated vs. standard float glass). Another misconception is that weight is directly proportional to thickness only. While thickness is a major factor, the surface area (length times width) also plays an equally significant role in determining the total volume and thus the overall weight of a plate glass piece. Proper {primary_keyword} accounts for all these dimensions and the specific material density.

Plate Glass Weight Calculation Formula and Mathematical Explanation

The fundamental principle behind the {primary_keyword} is derived from the basic physics definition of density: Density = Mass / Volume. Rearranging this formula, we get Mass = Volume × Density.

To calculate the mass (weight) of a rectangular pane of plate glass, we first need to determine its volume. The volume of a rectangular prism (like a flat sheet of glass) is calculated by multiplying its three dimensions: Length, Width, and Thickness.

So, the formula becomes:

Volume = Length × Width × Thickness

Once the volume is calculated, we multiply it by the density of the specific type of glass:

Weight = (Length × Width × Thickness) × Density

This is the core calculation performed by our plate glass weight calculator. It simplifies the complex process into an easy-to-use tool.

Variables Explained:

Variable Meaning Unit Typical Range
Length (L) The longest dimension of the glass pane. meters (m) 0.1 m to 5.0 m
Width (W) The shorter dimension of the glass pane. meters (m) 0.1 m to 3.0 m
Thickness (T) The depth of the glass pane. meters (m) 0.003 m (3 mm) to 0.025 m (25 mm)
Density (ρ) The mass of the glass per unit of its volume. This varies slightly based on the glass composition and treatment. kilograms per cubic meter (kg/m³) 2400 kg/m³ to 2600 kg/m³
Weight (Wgt) The total mass of the glass pane. kilograms (kg) Calculated based on inputs

The formula used by the calculator is:

Weight (kg) = Length (m) × Width (m) × Thickness (m) × Density (kg/m³)

Our tool ensures you can input these values accurately and receive an immediate weight calculation for your plate glass, vital for any [glass installation project](https://www.example.com/glass-installation). This detailed breakdown of the {primary_keyword} formula helps users understand the underlying physics and the importance of each input parameter.

Practical Examples (Real-World Use Cases)

Let's look at a couple of real-world scenarios where the Plate Glass Weight Calculator is invaluable:

Example 1: Calculating Weight for Shipping a Large Window Pane

A glass manufacturer needs to ship a large, custom-sized window pane to a construction site. The dimensions are:

  • Length: 3.0 meters
  • Width: 1.8 meters
  • Thickness: 10 mm (which is 0.010 meters)
  • Type: Standard Float Glass (Density ≈ 2500 kg/m³)

Using the calculator:

  • Input Length: 3.0 m
  • Input Width: 1.8 m
  • Input Thickness: 0.010 m
  • Select Density: Standard Float Glass (2500 kg/m³)

Calculated Results:

  • Volume: 3.0 m × 1.8 m × 0.010 m = 0.054 m³
  • Area: 3.0 m × 1.8 m = 5.4 m²
  • Density Used: 2500 kg/m³
  • Primary Result (Weight): 0.054 m³ × 2500 kg/m³ = 135 kg

Interpretation: The shipping company needs to prepare for a package weighing 135 kg. This weight impacts the choice of lifting equipment, the number of personnel required for handling, and the specific strapping and packaging needed to prevent damage during transit. This accurate calculation helps avoid unexpected logistical challenges and ensures the safe delivery of the glass. For larger orders, understanding the weight per pane is critical for total load calculation, influencing [freight quote calculations](https://www.example.com/freight-calculator).

Example 2: Estimating Weight for Structural Support Design

An architect is designing a building façade that uses large, thick glass panels. For structural integrity, they need to know the weight of these panels to design the supporting framework accurately.

  • Length: 2.0 meters
  • Width: 1.0 meter
  • Thickness: 25 mm (which is 0.025 meters)
  • Type: Tempered Glass (Density ≈ 2550 kg/m³)

Using the calculator:

  • Input Length: 2.0 m
  • Input Width: 1.0 m
  • Input Thickness: 0.025 m
  • Select Density: Tempered Glass (2550 kg/m³)

Calculated Results:

  • Volume: 2.0 m × 1.0 m × 0.025 m = 0.050 m³
  • Area: 2.0 m × 1.0 m = 2.0 m²
  • Density Used: 2550 kg/m³
  • Primary Result (Weight): 0.050 m³ × 2550 kg/m³ = 127.5 kg

Interpretation: Each glass panel weighs approximately 127.5 kg. The architect can now use this figure to calculate the total load on the building structure and design the steel or aluminum framing, connection points, and anchorage systems to safely support this weight, considering wind loads and seismic factors as well. Proper structural analysis is key for [building façade design](https://www.example.com/facade-design).

How to Use This Plate Glass Weight Calculator

Using our intuitive {primary_keyword} is straightforward. Follow these simple steps:

  1. Enter Glass Dimensions: Input the precise Length and Width of your glass pane in meters. Then, enter the Thickness of the glass, also in meters (remember to convert millimeters to meters by dividing by 1000, e.g., 6 mm = 0.006 m).
  2. Select Material Density: Choose the type of glass from the dropdown list (e.g., Standard Float Glass, Tempered Glass). If your specific glass type isn't listed or you have a precise density value, select 'Other' and enter the exact density in kg/m³ into the custom field that appears.
  3. Calculate: Click the "Calculate Weight" button.

How to Read Results:

  • Primary Result (Highlighted): This is the total calculated weight of your glass pane in kilograms (kg). It's prominently displayed for quick reference.
  • Intermediate Results: You'll also see the calculated Volume (in cubic meters, m³), the surface Area (in square meters, m²), and the exact Density value (in kg/m³) that was used in the calculation.
  • Formula Explanation: A brief text reiterates the formula used (Weight = Volume × Density) for clarity.

Decision-Making Guidance:

  • Shipping & Logistics: Use the primary weight result to get accurate shipping quotes, plan vehicle capacity, and ensure safe handling procedures.
  • Structural Engineering: Provide the weight data to engineers for designing support structures, ensuring they can handle the load safely.
  • Material Estimation: While this calculator focuses on weight, understanding dimensions and material type is crucial for estimating quantities in larger projects. Consider using a [material takeoff calculator](https://www.example.com/material-takeoff) for comprehensive project planning.
  • Safety Protocols: The calculated weight is vital for determining appropriate safety measures, such as the number of people needed to lift a pane or the type of lifting equipment required.

The "Reset" button clears all fields to their default states, allowing you to start a new calculation easily. The "Copy Results" button copies all calculated values and key assumptions, making it simple to paste them into documents or reports.

Key Factors That Affect Plate Glass Weight Results

While the {primary_keyword} formula is straightforward, several factors influence the final weight calculation and its real-world application. Understanding these factors ensures the most accurate and practical use of the calculator:

  1. Glass Dimensions (Length, Width, Thickness): This is the most direct factor. Larger dimensions mean a larger volume, and thus, a heavier piece of glass. Thickness, in particular, has a significant impact as it directly scales the volume. A 10mm pane will weigh roughly double a 5mm pane of the same length and width.
  2. Material Density: Different types of glass have slightly different molecular structures and compositions, leading to variations in density. Standard float glass, tempered glass, laminated glass, and low-iron glass all have distinct densities. Using the correct density is crucial for an accurate weight calculation. Our calculator provides common densities, but custom input is available for specialized glass. This is a key factor in [material selection](https://www.example.com/material-selection-guide).
  3. Tolerances in Manufacturing: Real-world glass manufacturing isn't perfectly precise. Slight variations in length, width, and especially thickness can occur. While often minimal, these tolerances can contribute to slight deviations in the actual weight compared to the calculated value, especially for very large or thick panes.
  4. Edge Work and Finishing: Processes like grinding, polishing, or beveling the edges of a glass pane can remove a small amount of material. For most standard applications, this removed weight is negligible. However, for highly precise applications or very intricate edge work on smaller pieces, it could theoretically introduce a minor difference.
  5. Temperature Variations: While glass density is relatively stable, extreme temperature fluctuations can cause slight thermal expansion or contraction. This effect on volume is typically minuscule and not a practical concern for standard weight calculations, but it's a factor in high-precision scientific contexts.
  6. Coating and Laminations: Some glass products have specialized coatings (e.g., Low-E coatings) or are laminated with interlayers (like PVB in safety glass). While the calculator uses a density for the primary glass type, these additional layers can add a small amount of weight. For critical calculations, the weight of these additions might need to be estimated separately. Laminated glass density, as provided, already accounts for the typical interlayers.

Accurate {primary_keyword} relies on precise input for dimensions and appropriate selection of material density. Considering these influencing factors helps ensure the calculated weight is a reliable estimate for practical purposes.

Frequently Asked Questions (FAQ)

Q1: What are the standard units used in this calculator?
A1: The calculator uses meters (m) for length, width, and thickness, and kilograms per cubic meter (kg/m³) for density. The final weight is presented in kilograms (kg).
Q2: How do I convert millimeters (mm) to meters (m) for thickness?
A2: To convert millimeters to meters, divide the value by 1000. For example, 6 mm is equal to 0.006 m, and 12 mm is equal to 0.012 m.
Q3: What is the density of typical window glass?
A3: Standard float glass typically has a density of around 2500 kg/m³. Tempered glass might be slightly denser due to the process, often around 2550 kg/m³. Our calculator provides these common values.
Q4: Does the calculator account for the weight of coatings or films on the glass?
A4: The calculator primarily accounts for the base glass material. Specialized coatings or films add a minimal amount of weight, which is usually negligible for most practical purposes. For highly precise weight calculations, you might need to factor in the specific weight of the coating or film separately.
Q5: Can I use this calculator for curved glass?
A5: This calculator is designed for flat, rectangular (plate) glass. Calculating the weight of curved or irregularly shaped glass requires more complex geometric formulas and is beyond the scope of this tool.
Q6: What happens if I enter zero or negative values?
A6: The calculator includes inline validation. It will prevent calculations with zero or negative values for dimensions and density, prompting you to enter valid positive numbers. Error messages will appear below the respective input fields.
Q7: How accurate is the weight calculation?
A7: The accuracy depends on the precision of the input dimensions and the correct density value used. Assuming accurate inputs, the calculation is highly accurate based on physical principles. Real-world weight may vary slightly due to manufacturing tolerances.
Q8: What is the purpose of the "Copy Results" button?
A8: The "Copy Results" button allows you to easily transfer the calculated weight, intermediate values (volume, area, density), and key assumptions to another application, such as a spreadsheet, document, or email, saving you manual transcription time.

Related Tools and Internal Resources

var customDensityGroup = document.getElementById('customDensityGroup'); var glassDensitySelect = document.getElementById('glassDensity'); var customGlassDensityInput = document.getElementById('customGlassDensity'); glassDensitySelect.onchange = function() { if (glassDensitySelect.value === "") { customDensityGroup.style.display = 'block'; customGlassDensityInput.setAttribute('required', 'required'); } else { customDensityGroup.style.display = 'none'; customGlassDensityInput.removeAttribute('required'); } }; function validateInput(inputId, errorId, minValue = null, maxValue = null) { var input = document.getElementById(inputId); var errorElement = document.getElementById(errorId); var value = parseFloat(input.value); errorElement.classList.remove('visible'); input.style.borderColor = '#ccc'; if (isNaN(value)) { if (input.value.trim() === ") { errorElement.textContent = 'This field is required.'; } else { errorElement.textContent = 'Please enter a valid number.'; } errorElement.classList.add('visible'); input.style.borderColor = '#dc3545'; return false; } if (minValue !== null && value = maxValue) { errorElement.textContent = 'Value must be less than ' + maxValue + '.'; errorElement.classList.add('visible'); input.style.borderColor = '#dc3545'; return false; } return true; } var chartInstance = null; function drawChart(volume, densityUsed) { var canvas = document.getElementById('weightChart'); var ctx = canvas.getContext('2d'); // Clear previous chart if it exists if (chartInstance) { chartInstance.destroy(); } var totalWeight = parseFloat(document.getElementById('primary-result').innerText); var length = parseFloat(document.getElementById('glassLength').value); var width = parseFloat(document.getElementById('glassWidth').value); var thickness = parseFloat(document.getElementById('glassThickness').value); var dataPoints = []; var labels = []; var maxVal = 1; // To scale the chart appropriately if (!isNaN(length) && length > 0) { dataPoints.push(length * width * thickness * densityUsed); // Effect of changing length labels.push('Length'); maxVal = Math.max(maxVal, length * width * thickness * densityUsed); } if (!isNaN(width) && width > 0) { dataPoints.push(length * width * thickness * densityUsed); // Effect of changing width labels.push('Width'); maxVal = Math.max(maxVal, length * width * thickness * densityUsed); } if (!isNaN(densityUsed) && densityUsed > 0) { dataPoints.push(length * width * thickness * densityUsed); // Effect of changing density labels.push('Density'); maxVal = Math.max(maxVal, length * width * thickness * densityUsed); } if (dataPoints.length === 0) return; // No data to plot // If only one dimension is valid, create a dummy value for comparison if (dataPoints.length === 1) { if(labels[0] === 'Length') { dataPoints.push(length * width * thickness * densityUsed); // Dummy for Width labels.push('Width'); dataPoints.push(length * width * thickness * densityUsed); // Dummy for Density labels.push('Density'); } else if (labels[0] === 'Width') { dataPoints.push(length * width * thickness * densityUsed); // Dummy for Length labels.push('Length'); dataPoints.push(length * width * thickness * densityUsed); // Dummy for Density labels.push('Density'); } else { // Density dataPoints.push(length * width * thickness * densityUsed); // Dummy for Length labels.push('Length'); dataPoints.push(length * width * thickness * densityUsed); // Dummy for Width labels.push('Width'); } maxVal = length * width * thickness * densityUsed; } else if (dataPoints.length === 2) { // If two valid, add a dummy for the third if (!isNaN(length) && length > 0 && !isNaN(width) && width > 0 && (isNaN(densityUsed) || densityUsed 0 && !isNaN(densityUsed) && densityUsed > 0 && (isNaN(width) || width 0 && !isNaN(densityUsed) && densityUsed > 0 && (isNaN(length) || length <= 0)) { dataPoints.push(length * width * thickness * densityUsed); // Dummy for Length labels.push('Length'); } maxVal = Math.max(maxVal, length * width * thickness * densityUsed); } // Ensure we have 3 data series for comparison, even if they are the same while (dataPoints.length < 3) { dataPoints.push(maxVal); // Use maxVal as a placeholder if not calculated labels.push('Factor ' + (dataPoints.length + 1)); } var chartData = { labels: labels, datasets: [{ label: 'Weight Contribution', data: dataPoints, backgroundColor: [ 'rgba(0, 74, 153, 0.6)', // Primary Color for Dimensions 'rgba(0, 74, 153, 0.6)', // Primary Color for Dimensions 'rgba(40, 167, 69, 0.6)' // Success Color for Density ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)' ], borderWidth: 1 }] }; chartInstance = new Chart(ctx, { type: 'bar', data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Weight Contribution (kg)' }, ticks: { callback: function(value) { if (value % 1 === 0) { // Display integers return value; } else { // Format decimals if needed return value.toFixed(1); } } } }, x: { title: { display: true, text: 'Influencing Factor' } } }, plugins: { legend: { display: false // Legend handled by custom div }, title: { display: true, text: 'Estimated Weight Contribution Analysis' } } } }); } function calculateWeight() { var lengthValid = validateInput('glassLength', 'glassLengthError', 0); var widthValid = validateInput('glassWidth', 'glassWidthError', 0); var thicknessValid = validateInput('glassThickness', 'glassThicknessError', 0); var densityValid = true; var selectedDensityValue = glassDensitySelect.value; var densityUsed = 0; if (selectedDensityValue === "") { densityValid = validateInput('customGlassDensity', 'customGlassDensityError', 2000, 3000); // Reasonably constrained range if (densityValid) { densityUsed = parseFloat(document.getElementById('customGlassDensity').value); } } else { densityUsed = parseFloat(selectedDensityValue); } if (lengthValid && widthValid && thicknessValid && densityValid) { var length = parseFloat(document.getElementById('glassLength').value); var width = parseFloat(document.getElementById('glassWidth').value); var thickness = parseFloat(document.getElementById('glassThickness').value); var volume = length * width * thickness; var area = length * width; var weight = volume * densityUsed; document.getElementById('volumeResult').innerText = volume.toFixed(4); document.getElementById('areaResult').innerText = area.toFixed(2); document.getElementById('densityUsedResult').innerText = densityUsed.toFixed(0) + ' kg/m³'; var primaryResultElement = document.getElementById('primary-result'); primaryResultElement.innerText = weight.toFixed(2) + ' kg'; // Update chart drawChart(volume, densityUsed); // Ensure chart is visible after calculation document.querySelector('.chart-container').style.display = 'block'; return weight; } else { document.getElementById('primary-result').innerText = '–'; document.getElementById('volumeResult').innerText = '–'; document.getElementById('areaResult').innerText = '–'; document.getElementById('densityUsedResult').innerText = '–'; // Clear chart if inputs are invalid var canvas = document.getElementById('weightChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); if (chartInstance) { chartInstance.destroy(); chartInstance = null; } document.querySelector('.chart-container').style.display = 'none'; // Hide chart if invalid return NaN; } } function resetCalculator() { document.getElementById('glassLength').value = '2.5'; document.getElementById('glassWidth').value = '1.5'; document.getElementById('glassThickness').value = '0.006'; // 6mm document.getElementById('glassDensity').value = '2500'; // Standard Float Glass customDensityGroup.style.display = 'none'; customGlassDensityInput.value = ''; customGlassDensityInput.removeAttribute('required'); // Clear errors var errorElements = document.querySelectorAll('.error-message'); for (var i = 0; i < errorElements.length; i++) { errorElements[i].classList.remove('visible'); errorElements[i].textContent = ''; } // Reset input borders var inputs = document.querySelectorAll('.loan-calc-container input, .loan-calc-container select'); for (var i = 0; i < inputs.length; i++) { inputs[i].style.borderColor = '#ccc'; } calculateWeight(); // Recalculate with default values } function copyResults() { var primaryResult = document.getElementById('primary-result').innerText; var volume = document.getElementById('volumeResult').innerText; var area = document.getElementById('areaResult').innerText; var density = document.getElementById('densityUsedResult').innerText; var length = document.getElementById('glassLength').value; var width = document.getElementById('glassWidth').value; var thickness = document.getElementById('glassThickness').value; var selectedDensityValue = glassDensitySelect.value; var customDensity = document.getElementById('customGlassDensity').value; var assumptions = "Key Assumptions:\n"; if (selectedDensityValue !== "") { assumptions += "- Material Density: " + glassDensitySelect.options[glassDensitySelect.selectedIndex].text + "\n"; } else { assumptions += "- Material Density: Custom (" + customDensity + " kg/m³)\n"; } assumptions += "- Length: " + length + " m\n"; assumptions += "- Width: " + width + " m\n"; assumptions += "- Thickness: " + thickness + " m\n"; var resultText = "Plate Glass Weight Calculation Results:\n\n"; resultText += "Primary Result (Weight): " + primaryResult + "\n"; resultText += "Volume: " + volume + " m³\n"; resultText += "Area: " + area + " m²\n"; resultText += "Density Used: " + density + "\n\n"; resultText += assumptions; // Use a temporary textarea to copy text to clipboard var textArea = document.createElement("textarea"); textArea.value = resultText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Failed to copy results.'; // Optionally show a temporary notification var notification = document.createElement('div'); notification.textContent = msg; notification.style.cssText = 'position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background-color: #004a99; color: white; padding: 10px 20px; border-radius: 5px; z-index: 1000; opacity: 0; transition: opacity 0.5s;'; document.body.appendChild(notification); setTimeout(function() { notification.style.opacity = '1'; }, 10); setTimeout(function() { notification.style.opacity = '0'; setTimeout(function() { document.body.removeChild(notification); }, 500); }, 1500); } catch (err) { console.error('Fallback: Oops, unable to copy', err); // Fallback or error message } document.body.removeChild(textArea); } // Initialize calculator and chart on load document.addEventListener('DOMContentLoaded', function() { resetCalculator(); // Set default values and perform initial calculation // Ensure chart container is visible only after content is loaded and calculated var chartContainer = document.querySelector('.chart-container'); if (chartContainer) { chartContainer.style.display = 'block'; } // Add event listeners for real-time updates var inputFields = document.querySelectorAll('.loan-calc-container input[type="number"], .loan-calc-container select'); for (var i = 0; i < inputFields.length; i++) { inputFields[i].addEventListener('input', calculateWeight); } // Special listener for custom density visibility document.getElementById('glassDensity').addEventListener('change', function() { if (this.value === "") { document.getElementById('customGlassDensity').addEventListener('input', calculateWeight); } else { document.getElementById('customGlassDensity').removeEventListener('input', calculateWeight); } calculateWeight(); // Recalculate after changing density selection }); calculateWeight(); // Initial call to set up chart state });

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