snap svg:使用参数更改viewBox [英] snap svg : change viewBox using parameters

问题描述

使用预定义的值提供svg元素的viewBox属性的正确语法是什么?我有这个:

what is the correct syntax to supply a viewBox attribute of an svg element using pre-defined values? I have this :

  var mySvg=Snap("#mySvg");
  var worldMap=mySvg.select("#worldMap");//worldMap is an svg inside svg

当我尝试这个时:

  worldMap.attr({viewBox:"760, 455, 132, 78"});

它工作正常.但是，当我尝试使用参数时:

it works just fine. However when i tried it using parameters :

var x=760;
var y=455;
var wi=132;
var hi=78;

worldMap.attr({viewBox:"x, y, wi, hi");

什么都没发生，为什么?我相信问题是找到正确的语法.我也尝试过:

nothing happened, why? I belive the problem is to find the correct syntax. I also tried :

worldMap.attr({viewBox:x, y, wi, hi);
worldMap.attr({viewBox:{x, y, wi, hi});
worldMap.attr({viewBox:(x, y, wi, hi));
worldMap.attr({viewBox:[x, y, wi, hi]);

到目前为止没有任何效果...有什么建议吗?

nothing works so far...any suggestion?

推荐答案

将您的值和分隔符(，)组合为字符串.试试这个，它应该可以工作.

concatenate your values and your seperators (,) as a string. Try this, it should be working.

worldMap.attr({viewBox:x+","+y+","+wi+","+hi});

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