08-27-周三_17-09-29

node_modules/dagre-d3-renderer/lib/arrows.js

@@ -0,0 +1,71 @@
+import util from './util'
+
+function normal (parent, id, edge, type) {
+  const marker = parent.append('marker')
+    .attr('id', id)
+    .attr('viewBox', '0 0 10 10')
+    .attr('refX', 9)
+    .attr('refY', 5)
+    .attr('markerUnits', 'strokeWidth')
+    .attr('markerWidth', 8)
+    .attr('markerHeight', 6)
+    .attr('orient', 'auto')
+
+  const path = marker.append('path')
+    .attr('d', 'M 0 0 L 10 5 L 0 10 z')
+    .style('stroke-width', 1)
+    .style('stroke-dasharray', '1,0')
+  util.applyStyle(path, edge[type + 'Style'])
+  if (edge[type + 'Class']) {
+    path.attr('class', edge[type + 'Class'])
+  }
+}
+
+function vee (parent, id, edge, type) {
+  const marker = parent.append('marker')
+    .attr('id', id)
+    .attr('viewBox', '0 0 10 10')
+    .attr('refX', 9)
+    .attr('refY', 5)
+    .attr('markerUnits', 'strokeWidth')
+    .attr('markerWidth', 8)
+    .attr('markerHeight', 6)
+    .attr('orient', 'auto')
+
+  const path = marker.append('path')
+    .attr('d', 'M 0 0 L 10 5 L 0 10 L 4 5 z')
+    .style('stroke-width', 1)
+    .style('stroke-dasharray', '1,0')
+  util.applyStyle(path, edge[type + 'Style'])
+  if (edge[type + 'Class']) {
+    path.attr('class', edge[type + 'Class'])
+  }
+}
+
+function undirected (parent, id, edge, type) {
+  const marker = parent.append('marker')
+    .attr('id', id)
+    .attr('viewBox', '0 0 10 10')
+    .attr('refX', 9)
+    .attr('refY', 5)
+    .attr('markerUnits', 'strokeWidth')
+    .attr('markerWidth', 8)
+    .attr('markerHeight', 6)
+    .attr('orient', 'auto')
+
+  const path = marker.append('path')
+    .attr('d', 'M 0 5 L 10 5')
+    .style('stroke-width', 1)
+    .style('stroke-dasharray', '1,0')
+  util.applyStyle(path, edge[type + 'Style'])
+  if (edge[type + 'Class']) {
+    path.attr('class', edge[type + 'Class'])
+  }
+}
+
+export default {
+  normal,
+  vee,
+  undirected,
+  default: normal
+}