Angular.js自定义指令和d3.js

让angular.js指令与d3结合工作并不难(多亏了stackoverflow)。但是我不能让那些箭头工作。代码取自M.Bostock的一个例子。(原)我只是想把它放在指令中，但失败了。它渲染很好，当我检查DOM，我可以看到箭头，但他们不会显示。有人知道吗?

angular.module('test').directive('myNodes', ['$compile', function ($compile) {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            // http://blog.thomsonreuters.com/index.php/mobile-patent-suits-graphic-of-the-day/
        var links = [
          {source: "Microsoft", target: "Amazon", type: "licensing"},
          {source: "Microsoft", target: "HTC", type: "licensing"},
          {source: "Samsung", target: "Apple", type: "suit"},
          {source: "Motorola", target: "Apple", type: "suit"},
          {source: "Nokia", target: "Apple", type: "resolved"},
          {source: "HTC", target: "Apple", type: "suit"},
          {source: "Kodak", target: "Apple", type: "suit"},
          {source: "Microsoft", target: "Barnes & Noble", type: "suit"},
          {source: "Microsoft", target: "Foxconn", type: "suit"},
          {source: "Oracle", target: "Google", type: "suit"},
          {source: "Apple", target: "HTC", type: "suit"},
          {source: "Microsoft", target: "Inventec", type: "suit"},
          {source: "Samsung", target: "Kodak", type: "resolved"},
          {source: "LG", target: "Kodak", type: "resolved"},
          {source: "RIM", target: "Kodak", type: "suit"},
          {source: "Sony", target: "LG", type: "suit"},
          {source: "Kodak", target: "LG", type: "resolved"},
          {source: "Apple", target: "Nokia", type: "resolved"},
          {source: "Qualcomm", target: "Nokia", type: "resolved"},
          {source: "Apple", target: "Motorola", type: "suit"},
          {source: "Microsoft", target: "Motorola", type: "suit"},
          {source: "Motorola", target: "Microsoft", type: "suit"},
          {source: "Huawei", target: "ZTE", type: "suit"},
          {source: "Ericsson", target: "ZTE", type: "suit"},
          {source: "Kodak", target: "Samsung", type: "resolved"},
          {source: "Apple", target: "Samsung", type: "suit"},
          {source: "Kodak", target: "RIM", type: "suit"},
          {source: "Nokia", target: "Qualcomm", type: "suit"}
        ];
        var nodes = {};
        // Compute the distinct nodes from the links.
        links.forEach(function(link) {
          link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
          link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
        });
        var width = 960,
            height = 500;
        var force = d3.layout.force()
            .nodes(d3.values(nodes))
            .links(links)
            .size([width, height])
            .linkDistance(60)
            .charge(-300)
            .on("tick", tick)
            .start();
        var svg = d3.select(element[0]).append("svg")
            .attr("width", width)
            .attr("height", height);
        // Per-type markers, as they don't inherit styles.
        svg.append("defs").selectAll("marker")
            .data(["suit", "licensing", "resolved"])
          .enter().append("marker")
            .attr("ng-attr-id", function(d) { return d; })
            .attr("viewBox", "0 -5 10 10")
            .attr("refX", 15)
            .attr("refY", -1.5)
            .attr("stroke", "green")
            .attr("stroke-width", "2")
            .attr("fill", "black")
            .attr("markerWidth", 6)
            .attr("markerHeight", 6)
            .attr("orient", "auto")
          .append("path")
            .attr("d", "M0,-5L10,0L0,5");
            element.removeAttr("my-nodes");
            $compile(element)(scope);
            // markerHeight = "3" stroke = "green" stroke-width = "2" fill = "none"
        var path = svg.append("g").selectAll("path")
            .data(force.links())
          .enter().append("path")
            .attr("class", function(d) { return "link " + d.type; })
            .attr("marker-end", function(d) { return "url(#" + d.type + ")"; });
             element.removeAttr("my-nodes");
            $compile(element)(scope);
        var circle = svg.append("g").selectAll("circle")
            .data(force.nodes())
          .enter().append("circle")
            .attr("r", 6)
            .call(force.drag);
             element.removeAttr("my-nodes");
            $compile(element)(scope);
        var text = svg.append("g").selectAll("text")
            .data(force.nodes())
          .enter().append("text")
            .attr("x", 8)
            .attr("y", ".31em")
            .text(function(d) { return d.name; });
            element.removeAttr("my-nodes");
            $compile(element)(scope);
        // Use elliptical arc path segments to doubly-encode directionality.
        function tick() {
          path.attr("d", linkArc);
          circle.attr("transform", transform);
          text.attr("transform", transform);
           //element.removeAttr("my-nodes");
           // $compile(element)(scope);
        }
        function linkArc(d) {
          var dx = d.target.x - d.source.x,
              dy = d.target.y - d.source.y,
              dr = Math.sqrt(dx * dx + dy * dy);
          return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
        }
        function transform(d) {
          return "translate(" + d.x + "," + d.y + ")";
        }
            }
        };
    }]);

<div my-nodes></div>

普朗克说明问题