d3从数组创建SVG路径

按照此示例http://jsfiddle.net/4xXQT/，我可以使用https://jsfiddle.net/il_pres/qq9o1ovt/来使用D3渲染存储在一个数组中的点坐标。

var vis = d3.select("body").append("svg")
     .attr("width", 30)
     .attr("height", 30);
var regioni = [{regione:'Abruzzo',polygon:{points:'25.171,18.844 25.094,18.582 24.567,17.714 24.015,17.714 23.226,16.899 22.805,16.268 21.911,14.558 21.043,14.427 20.753,15.163 20.043,15.084 19.938,15.741 19.386,16.268 19.386,17.056 18.439,16.899 18.202,17.345 18.334,17.924 18.281,18.582 19.57,19.423 18.939,20.055 18.176,19.581 17.756,20.16 17.808,20.844 18.703,21.08 19.517,21.396 19.491,22.079 20.517,22.185 20.596,22.605 21.122,22.133 21.832,22.658 22.568,22.737 23.094,23.473 23.646,22.553 23.751,21.738 24.646,21.212 25.094,21.738 25.409,22.29 26.25,21.238 26.409,20.475 26.776,19.923 26.303,19.634 26.145,19.292'}},{regione:'Basilicata',polygon:{points:'24.607,15.268 23.476,14.716 23.818,14.4 23.161,13.848 22.556,14.111 22.135,14.005 21.529,14.452 20.53,14.716 19.294,14.111 18.952,13.742 18.426,14.242 18.479,14.926 17.637,14.321 17.295,14.531 17.479,15.426 16.611,16.083 17.216,16.451 17.637,17.556 18.321,18.214 18.453,18.792 19.189,18.871 19.61,18.424 20.662,19.186 20.662,19.581 20.109,19.844 19.978,20.344 20.662,20.081 21.188,20.318 21.372,20.002 21.951,19.713 22.424,19.713 22.949,20.265 23.423,20.896 23.555,21.448 23.187,22.053 23.213,22.658 23.844,23.027 24.475,23.105 25.159,23.605 25.08,23.894 25.58,24.157 26.158,24.157 26.5,23.552 27.105,23.552 27.631,22.816 27.92,22.238 27.579,21.291 26.658,20.475 26.132,19.844 26.053,19.239 25.238,18.45 25.238,17.766 26.001,17.74 26.264,17.398 26.21,16.609 25.764,16.32 24.712,16.136'}}];
vis.selectAll("polygon")
.data(regioni) .enter().append("polygon")
.attr("points",function(d) {return d.polygon.points})
.attr("stroke","red")
.attr("stroke-width",0.1);

现在我正在尝试使用相同的svg形状进行相同的操作，这次将其存储为d坐标

var regionico =[{Regione:'Abruzzo',polygon:{points:'m 127.945,84.9805 -0.781,2.6172 -5.273,8.6835 -5.508,0 -7.891,8.1528 -4.219,6.308 -8.9292,17.09 -8.6836,1.32 -2.8985,-7.363 -7.1015,0.789 -1.0547,-6.57 -5.5157,-5.266 0,-7.89 -9.4648,1.582 -2.3711,-4.4731 1.3164,-5.7812 -0.5273,-6.582 12.8906,-8.4063 -6.3086,-6.3203 -7.6367,4.7383 -4.1992,-5.793 0.5273,-6.8359 8.9453,-2.3633 8.1445,-3.1641 -0.2617,-6.8242 10.2617,-1.0664 0.7813,-4.1992 5.2656,4.7265 7.0977,-5.2539 7.3632,-0.7812 5.25,-7.3633 5.527,9.1992 1.055,8.1446 8.945,5.2656 4.473,-5.2656 3.164,-5.5157 8.399,10.5157 1.601,7.6367 3.652,5.5195 -4.726,2.8906 -1.582,3.418 -9.727,4.4805'}},{Regione:'Basilicata',polygon:{points:'m 123.746,104.57 -7.637,-4.7458 -9.453,3.4178 -3.961,8.692 -12.3512,2.089 2.1093,9.739 -7.6289,4.734 -5,-5.516 -6.0547,3.418 -7.3633,-7.109 0.5274,-7.891 -2.6172,-3.41 -7.6367,-0.527 0,-6.57 8.1445,-7.9027 0.8008,-6.0352 5.2539,-6.3281 9.4727,-8.1445 3.4101,-9.4727 -3.1562,-6.0547 -5,-7.0898 5.2617,-5.2617 2.1094,-5.2539 2.8906,6.8242 8.9375,0.8008 3.4375,-7.625 16.8128,4.207 3.945,14.9805 12.109,-1.0547 9.981,23.4101 -9.727,5.7891 0,14.4723 -7.617,3.418'}}

但是如果我在d中使用与attr相同的代码。

vis.selectAll("path")
.data(regionico).enter().append("path")
.attr("d",function(d) { return d.polygon.points})
.attr("stroke","red")
.attr("stroke-width",0.1);

它不起作用。有什么建议吗？