当我试图在一个html页面中使用两个库(rafael.js和paper.js)时,出现了各种错误。
情况1. Uncaught ReferenceError:未定义Raphael。在文件“ rafael.js”中,该行:
var paper = Raphael(0, 0, 320, 200);
是错误的原因。但显然它是用html导入的:
<head>
...
<script src="js/paper-full.js" type="text/javascript"></script>
<script src="js/mypaper.js" type="text/paperscript" canvas="myCanvas">
</head>
<body>
<script src="js/rafael.js" type="text/javascript"></script>
<canvas id='myCanvas' resize></canvas>
<script src="js/myrafael.js"></script>
...
</body>
情况2。paper.js输出:未捕获错误:无法找到ID为“ myCanvas”的画布,但是画布在那里。这是html:
<head>
...
<script src="js/rafael.js" type="text/javascript"></script>
<script src="js/paper-full.js" type="text/javascript"></script>
<script src="js/mypaper.js" type="text/paperscript" canvas="myCanvas">
</head>
<body>
<canvas id='myCanvas' resize></canvas>
<script src="js/myrafael.js"></script>
...
</body>
当我在一个.js文件(“ myrafaelpaper.js”)中放置了拉斐尔和纸质代码时,尽管存在myCanvas,但也发生了同样的错误:
<head>
...
<script src="js/rafael.js" type="text/javascript"></script>
<script src="js/paper-full.js" type="text/javascript"></script>
<script src="js/myrafaelpaper.js" type="text/paperscript" canvas="myCanvas">
</head>
<body>
<canvas id='myCanvas' resize></canvas>
<script src="js/myrafaelpaper.js"></script>
...
</body>
另外,它们工作正常。
“ myrafaelpaper.js”在这里:
//rafael.js part
var paper = Raphael(0, 0, 320, 200);
var circle = paper.circle(0, 30, 50);
circle.attr("fill", "#f00");
console.log(circle.isPointInside(50, 30));
//paper.js part
var pathData = 'M100,50c0,27.614-22.386,50-50,50S0,77.614,0,50S22.386,0,50,0S100,22.386,100,50';
var path = new Path(pathData);
path.strokeColor = 'red';
path.strokeWidth = 5;
path.position+= new Point(100, 50);
path.segments[3].point.selected=true;
“ myrafael.js”和“ mypaper.js”的内容是类推的。
在您提到的所有情况下,的脚本标签myrafaelpaper.js
都没有关闭(</script>
)。
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