08-27-周三_17-09-29

node_modules/dagre-d3-renderer/lib/position-clusters.js

@@ -0,0 +1,31 @@
+import d3 from 'd3'
+import util from './util'
+
+function positionClusters (selection, g) {
+  const created = selection.filter(function () { return !d3.select(this).classed('update') })
+
+  function translate (v) {
+    const node = g.node(v)
+    return 'translate(' + node.x + ',' + node.y + ')'
+  }
+
+  created.attr('transform', translate)
+
+  util.applyTransition(selection, g)
+      .style('opacity', 1)
+      .attr('transform', translate)
+
+  util.applyTransition(created.selectAll('rect'), g)
+      .attr('width', function (v) { return g.node(v).width })
+      .attr('height', function (v) { return g.node(v).height })
+      .attr('x', function (v) {
+        const node = g.node(v)
+        return -node.width / 2
+      })
+      .attr('y', function (v) {
+        const node = g.node(v)
+        return -node.height / 2
+      })
+}
+
+export default positionClusters