Javascript 如何在html中将表单中的输入显示到另一个页面上，同时处理该数据以生成椭圆_Javascript_Html_Forms_Input_Display

Javascript 如何在html中将表单中的输入显示到另一个页面上，同时处理该数据以生成椭圆

javascript html forms input

Javascript 如何在html中将表单中的输入显示到另一个页面上，同时处理该数据以生成椭圆,javascript,html,forms,input,display,Javascript,Html,Forms,Input,Display,我正在构建一个html/JavaScript页面，我需要做的最后一件事是能够在inputform页面上显示从用户处获取的输入，并在结果页面上显示它们，在结果页面上也会显示构建的椭圆。。这是输入表 <!DOCTYPE html> <html> <head> <title>Ellipse Parameters</title> <meta charset="ut

我正在构建一个html/JavaScript页面，我需要做的最后一件事是能够在inputform页面上显示从用户处获取的输入，并在结果页面上显示它们，在结果页面上也会显示构建的椭圆。。这是输入表

        <!DOCTYPE html>
    <html>
    <head>
        <title>Ellipse Parameters</title>
        <meta charset="utf-8" />
        <script src="JSSourceFile.js"></script>
        <link rel="stylesheet" href="StyleSheet.css" type="text/css" />
        <style>
            fieldset {
                font-family: 'Comic Sans MS';
                font-size: 16px;
                color: cyan;
            }
        </style>
    </head>
    <body>
        <header>
            <h1 style="color:cornflowerblue;">Ellipse Generator 488!!</h1>
        </header>
        <nav>
            <ul>
                <li><b><a href="index.html">Home Page</a></b></li>
                <li><b><a href="inputfrm.html">Ellipse Generator</a></b></li>
            </ul>
        </nav>
        <div id="maincontent">
            <section>
                <h2 style="font-size:20px; color:cyan;">Ellipse Specifications:</h2>
            </section>
            <section>
                <form action="response.html" method="get">
                    <fieldset>
                        <label for="num1">Major-Axis Coordinate:</label>
                        <input type="text" name="num1" />
    
                        <label for="num2">Minor-Axis Coordinate:</label>
                        <input type="text" name="num2" />
    
                        <button type="submit" onclick='document.getElementsById("result").innerHTML
                                = myFunction(document.getElementsByName("num1").value, document.getElementsByName("num2").value'>
                            Submit
                        </button>
                    </fieldset>
                </form>
            </section>
        </div>
        <footer>
            Footer: <a href="https://www.merriam-webster.com/dictionary/ellipse">More Ellipse Information </a>
        </footer>
    </body>
    </html>

    <!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Results</title>
    <link rel="stylesheet" href="StyleSheet.css" type="text/css" />
    <script src="JSSourceFile.js"></script>
</head>
<body>
   <header>
        <h1 style="color:white;">Ellipse Generator 888!!</h1>
    </header>
    <nav>
        <ul>
            <li><b><a href="index.html">Home Page</a></b></li>
            <li><b><a href="inputfrm.html">Ellipse Generator</a></b></li>
        </ul>
    </nav>
     <div id="maincontent">
        <section>
            <h2 style="font-size:20px; color:cyan;">Ellipse Result:</h2>
            <p style = "font-size:15px;">id="major"> Major-Axis Coordinate</p>
            <canvas id="myCanvas" width="1200" height="700"></canvas>
            
            
        </section>
    </div>
</body>
</html>

        window.onload = function(){
        let url = window.location["href"];
        let params = (new URL(url)).searchParams;
        let x = parseInt(params.get("num1"));
        let y = parseInt(params.get("num2"));
        
        var canvas = document.getElementById('myCanvas');
        var ctx = canvas.getContext('2d');
    
        function drawEllipse(ctx, x, y, w, h) {
            var kappa = .5522848,
                ox = (w / 2) * kappa, // control point offset horizontal
                oy = (h / 2) * kappa, // control point offset vertical
                xe = x + w,           // x-end
                ye = y + h,           // y-end
                xm = x + w / 2,       // x-middle
                ym = y + h / 2;       // y-middle
    
            ctx.beginPath();
            ctx.moveTo(x, ym);
            ctx.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
            ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
            ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
            ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
            //ctx.closePath(); // not used correctly, see comments (use to close off open path)
            ctx.stroke();
        }
        drawEllipse(ctx, 400, 400, x, y);
    }
    
    function showParams(e) {
        var majorAxis = document.getElementsByName("num1").value;
        var minorAxis = documnet.getElementsByName("num2").value;
        document.getElementById("show").innerText = majorAxis + " " + minorAxis;
    }