javascript 放大缩小精灵升级版

javascript 放大缩小精灵升级版

function xuanzhuanactnew(dianthat, dianjix, dianjiy, zhongxinx, zhongxiny){
        var newangle = getjiaodu(dianjix, dianjiy, zhongxinx, zhongxiny);
         var youxiajiajiao=dianthat.getChildByName('bunny').youxiajiajiao;
         var renewangle=-(newangle+Math.abs(youxiajiajiao));
        dianthat.rotation = renewangle;
        var newjuli = getjuli(dianjix, dianjiy, zhongxinx, zhongxiny);
        console.group('x1');
        console.log('newjuli:'+newjuli);
        console.log('newangle:'+newangle);
        console.groupEnd();
        var x1 = newjuli * Math.cos(youxiajiajiao)
        var cwidth=Math.abs(x1)*2
        var bunny = dianthat.getChildByName('bunny');
       bunny.width = cwidth;
       fangdaact(dianthat);
}

youxiajiajiao  右下角与X的夹角

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