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我刚刚发现了 Raphael，并且很喜欢它，但我并不是一个 javascript-er。现在我有三个重复的代码部分来在三个不同的 div 中绘制同一个圆圈。在 Raphael 中制作画布的默认设置是通过 ID 查找元素，但我希望有一组变量在所有具有“circle”类的 div 中绘制圆。我认为必须有一种更有效的编码方式。这是我现在使用的代码：

window.onload = function () {
    var paper = Raphael("c1", 26, 26); /* Make canvas 26*26px in div id "c1" */
    var circle = paper.circle(13, 13, 10.5); /* Draw circle at the center of the canvas with radius 10.5  */
    circle.attr("stroke", "#f1f1f1");
    circle.attr("stroke-width", 2);
    var text = paper.text(13, 13, "1"); /* Print text "1" inside the circle  */
    text.attr({'font-size': 15, 'font-family': 'FranklinGothicFSCondensed-1, FranklinGothicFSCondensed-2'});
    text.attr("fill", "#f1f1f1");

    var paper2 = Raphael("c2", 26, 26);
    var circle2 = paper2.circle(13, 13, 10.5);
    circle2.attr("stroke", "#f1f1f1");
    circle2.attr("stroke-width", 2);
    var text2 = paper2.text(12, 13, "2");
    text2.attr({'font-size': 15, 'font-family': 'FranklinGothicFSCondensed-1, FranklinGothicFSCondensed-2'});
    text2.attr("fill", "#f1f1f1");

    var paper3 = Raphael("c3", 26, 26);
    var circle3 = paper3.circle(13, 13, 10.5);
    circle3.attr("stroke", "#f1f1f1");
    circle3.attr("stroke-width", 2);
    var text3 = paper3.text(12, 13, "3");
    text3.attr({'font-size': 15, 'font-family': 'FranklinGothicFSCondensed-1, FranklinGothicFSCondensed-2'});
    text3.attr("fill", "#f1f1f1");
};

测试站点是@http://jesserosenfield.com/fluid/test.html

非常感谢你的帮助！

4

1 回答 1

8

定义一个接受 div 参数的函数，以便您可以自动化该过程：

function drawcircle(div, text) { 
    var paper3 = Raphael(div, 26, 26); //<<
    var circle3 = paper3.circle(13, 13, 10.5);
    circle3.attr("stroke", "#f1f1f1");
    circle3.attr("stroke-width", 2);
    var text3 = paper3.text(12, 13, text); //<<
    text3.attr({'font-size': 15, 'font-family': 'FranklinGothicFSCondensed-1, FranklinGothicFSCondensed-2'});
    text3.attr("fill", "#f1f1f1");
}

然后在你的 window.onload 中：

window.onload = function () {
    drawcircle("c1", "1");
    drawcircle("c2", "2");
    drawcircle("c3", "3");
};
于 2010-03-30T14:44:14.683 回答