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如何将角度和坐标标准化

将角度和坐标标准化,可以大大的提高影片制作的水平与速度,下面我来介绍一下这个方法: _root.createEmptyMovieClip("line", 0); //建立一个空的电影剪辑 _root.onEnterFrame = function() { mc._x = _xmouse; mc._y = _ymouse; //定义MC的坐标为鼠标的坐标 x = _xmouse-100; y = -(_ymouse-100); //这里用负的是将FLASH的坐标换回一般的坐标 //这里就是将坐标中心移到了中心(舞台是200*200) with (_root.line) { clear(); lineStyle(1); moveTo(100, 100); lineTo(_xmouse, _ymouse); lineTo(_xmouse, 100); //动态画线 } m = Math.atan2(y, x); //这里是返回角的弧度    r = (m*180)/Math.PI; //这里返回角度 if (r<0) { r = r+360; //这里将角度化为在0--360之间 } angle = "角度="+Math.round(r); n = "x="+x+"y="+y; //返回舞台的文本框 }; _root.createEmptyMovieClip("line", 0); //建立一个空的电影剪辑 _root.onEnterFrame = function() { mc._x = _xmouse; mc._y = _ymouse; //定义MC的坐标为鼠标的坐标 x = _xmouse-100; y = -(_ymouse-100); //这里用负的是将FLASH的坐标换回一般的坐标 //这里就是将坐标中心移到了中心(舞台是200*200) with (_root.line) { clear(); lineStyle(1); moveTo(100, 100); lineTo(_xmouse, _ymouse); lineTo(_xmouse, 100); //动态画线 } m = Math.atan2(y, x); //这里是返回角的弧度 r = (m*180)/Math.PI; //这里返回角度 if (r<0) { r = r+360; //这里将角度化为在0--360之间 } angle = "角度="+Math.round(r); n = "x="+x+"y="+y; //返回舞台的文本框 };

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