js计算点到直线的距离并使用canvas可视化

最新推荐文章于 2024-06-14 11:02:57 发布

isyoungboy

最新推荐文章于 2024-06-14 11:02:57 发布

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文章标签： javascript 开发语言 ecmascript

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使用方程计算

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Distance to Line Visualization</title>
    <style>
        canvas {
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <canvas id="myCanvas" width="600" height="400"></canvas>
    <script>
        const canvas = document.getElementById('myCanvas');
        const ctx = canvas.getContext('2d');

        // 定义直线的两个点
        const linePoint1 = { x: 300, y: 200 };
        const linePoint2 = { x: 400, y: 300 };

        // 定义点的坐标
        const point = { x: 200, y: 200 };

        // 计算直线方程的斜率
        const slope = (linePoint2.y - linePoint1.y) / (linePoint2.x - linePoi