08-27-周三_17-09-29

node_modules/dagre-layout/lib/debug.js

@@ -0,0 +1,35 @@
+import _ from 'lodash'
+import { Graph } from 'graphlibrary'
+
+import util from './util'
+
+/* istanbul ignore next */
+function debugOrdering (g) {
+  const layerMatrix = util.buildLayerMatrix(g)
+
+  const h = new Graph({ compound: true, multigraph: true }).setGraph({})
+
+  _.forEach(g.nodes(), function (v) {
+    h.setNode(v, { label: v })
+    h.setParent(v, 'layer' + g.node(v).rank)
+  })
+
+  _.forEach(g.edges(), function (e) {
+    h.setEdge(e.v, e.w, {}, e.name)
+  })
+
+  _.forEach(layerMatrix, function (layer, i) {
+    const layerV = 'layer' + i
+    h.setNode(layerV, { rank: 'same' })
+    _.reduce(layer, function (u, v) {
+      h.setEdge(u, v, { style: 'invis' })
+      return v
+    })
+  })
+
+  return h
+}
+
+export default {
+  debugOrdering
+}