CAD
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@@ -17,80 +17,3 @@
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<ul id="line-log"></ul>
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</div>
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<script>
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const canvas = document.getElementById('cadCanvas');
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const ctx = canvas.getContext('2d');
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const lineLog = document.getElementById('line-log');
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const pixelToMeter = 0.01; // Conversion factor: 1 pixel = 0.01 meter
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const gridSize = 5; // Size of each grid cell in pixels
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let startX = null;
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let startY = null;
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let capturedLines = [];
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// Snap a coordinate to the nearest grid point
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function snapToGrid(value) {
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return Math.round(value / gridSize) * gridSize;
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}
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// Draw the grid
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function drawGrid() {
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ctx.beginPath();
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ctx.strokeStyle = "#e0e0e0"; // Light gray grid lines
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ctx.lineWidth = 0.5;
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// Draw vertical lines
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for (let x = 0; x <= canvas.width; x += gridSize) {
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ctx.moveTo(x, 0);
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ctx.lineTo(x, canvas.height);
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}
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// Draw horizontal lines
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for (let y = 0; y <= canvas.height; y += gridSize) {
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ctx.moveTo(0, y);
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ctx.lineTo(canvas.width, y);
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}
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ctx.stroke();
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}
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// Calculate the length of a line in meters
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function calculateLineLengthInMeters(x1, y1, x2, y2) {
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const dx = x2 - x1;
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const dy = y2 - y1;
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const lengthInPixels = Math.sqrt(dx * dx + dy * dy);
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return lengthInPixels * pixelToMeter;
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}
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// Mouse events
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canvas.addEventListener('mousedown', (e) => {
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const endX = snapToGrid(e.offsetX);
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const endY = snapToGrid(e.offsetY);
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if (startX !== null && startY !== null) {
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// Draw the final line
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drawLine(startX, startY, endX, endY);
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// Capture the line details
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capturedLines.push({ startX, startY, endX, endY });
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updateLineLog();
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}
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// Update the start position for the next line
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startX = endX;
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startY = endY;
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});
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// Drawing functions
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function drawLine(x1, y1, x2, y2) {
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ctx.beginPath();
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ctx.strokeStyle = "#000000"; // Black color for lines
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ctx.lineWidth = 2; // Thicker lines
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ctx.moveTo(x1, y1);
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ctx.lineTo(x2, y2);
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ctx.stroke();
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}
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// Initialize canvas
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drawGrid(); // Draw the grid when the page loads
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</script>
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@@ -3,6 +3,84 @@
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import Layout from "#layouts/Layout.astro";
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import CAD from "#components/CAD.svelte";
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<script>
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const canvas = document.getElementById('cadCanvas');
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const ctx = canvas.getContext('2d');
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const lineLog = document.getElementById('line-log');
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const pixelToMeter = 0.01; // Conversion factor: 1 pixel = 0.01 meter
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const gridSize = 5; // Size of each grid cell in pixels
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let startX = null;
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let startY = null;
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let capturedLines = [];
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// Snap a coordinate to the nearest grid point
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function snapToGrid(value) {
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return Math.round(value / gridSize) * gridSize;
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}
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// Draw the grid
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function drawGrid() {
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ctx.beginPath();
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ctx.strokeStyle = "#e0e0e0"; // Light gray grid lines
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ctx.lineWidth = 0.5;
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// Draw vertical lines
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for (let x = 0; x <= canvas.width; x += gridSize) {
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ctx.moveTo(x, 0);
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ctx.lineTo(x, canvas.height);
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}
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// Draw horizontal lines
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for (let y = 0; y <= canvas.height; y += gridSize) {
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ctx.moveTo(0, y);
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ctx.lineTo(canvas.width, y);
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}
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ctx.stroke();
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}
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// Calculate the length of a line in meters
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function calculateLineLengthInMeters(x1, y1, x2, y2) {
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const dx = x2 - x1;
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const dy = y2 - y1;
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const lengthInPixels = Math.sqrt(dx * dx + dy * dy);
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return lengthInPixels * pixelToMeter;
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}
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// Mouse events
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canvas.addEventListener('mousedown', (e) => {
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const endX = snapToGrid(e.offsetX);
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const endY = snapToGrid(e.offsetY);
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if (startX !== null && startY !== null) {
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// Draw the final line
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drawLine(startX, startY, endX, endY);
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// Capture the line details
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capturedLines.push({ startX, startY, endX, endY });
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updateLineLog();
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}
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// Update the start position for the next line
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startX = endX;
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startY = endY;
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});
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// Drawing functions
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function drawLine(x1, y1, x2, y2) {
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ctx.beginPath();
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ctx.strokeStyle = "#000000"; // Black color for lines
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ctx.lineWidth = 2; // Thicker lines
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ctx.moveTo(x1, y1);
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ctx.lineTo(x2, y2);
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ctx.stroke();
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}
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// Initialize canvas
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drawGrid(); // Draw the grid when the page loads
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</script>
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---
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