ngx-charts-dag

A Directed Acyclic Graph (DAG) visualization for angular - implemented using ngx-charts.

Note: ngx-charts-dag 2.0.0 works only with Angular 4.x. To use ngx-charts-dag with Angular 2.x, use ngx-charts-dag 1.x.

Demo

https://swimlane.github.io/ngx-graph/

Features

• Custom templates for nodes and edges
• Automatic layout using Dagre
• Animations

How is it different than the ngx-charts-force-directed-graph component which is distributed with ngx-charts?

This visualization uses the Dagre layout, which is specialized for directed graphs, where as ngx-charts-force-directed-graph uses D3's force directed layout.

ngx-charts-dag is better suited for visualizing flow diagrams which have a clear start and end.

Installation

1. npm install @swimlane/ngx-charts-dag --save
2. Make sure the peer dependencies are installed (d3)
3. Import NgxChartsDagModule into your module
4. Use the ngx-charts-directed-graph component in your components

<ngx-charts-directed-graph
  class="chart-container"
  [view]="view"
  [legend]="showLegend"
  [links]="hierarchialGraph.links"
  (legendLabelClick)="onLegendLabelClick($event)"
  [nodes]="hierarchialGraph.nodes"
  [scheme]="colorScheme"
  [orientation]="orientation"
  [curve]="curve"
  (select)="select($event)">

  <template #defsTemplate>
    <svg:marker id="arrow" viewBox="0 -5 10 10" refX="8" refY="0" markerWidth="4" markerHeight="4" orient="auto">
      <svg:path d="M0,-5L10,0L0,5" class="arrow-head" />
    </svg:marker>
  </template>

  <template #nodeTemplate let-node>
    <svg:g class="node"
      ngx-tooltip
      [tooltipPlacement]="'top'"
      [tooltipType]="'tooltip'"
      [tooltipTitle]="node.label">
      <svg:rect [attr.width]="node.width" [attr.height]="node.height" [attr.fill]="node.options.color" />
      <svg:text alignment-baseline="central" [attr.x]="10" [attr.y]="node.height / 2">{{node.label}}</svg:text>
    </svg:g>
  </template>

  <template #linkTemplate let-link>
    <svg:g class="edge">
      <svg:path
        stroke-width="2"
        marker-end="url(#arrow)" >
      </svg:path>
    </svg:g>
  </template>

</ngx-charts-directed-graph>

Data

Nodes

[
  {
    id: 'start',
    label: 'start'
  }, {
    id: '1',
    label: 'Query ThreatConnect',
  }, {
    id: '2',
    label: 'Query XForce',
  }, {
    id: '3',
    label: 'Format Results'
  }, {
    id: '4',
    label: 'Search Splunk'
  }, {
    id: '5',
    label: 'Block LDAP'
  }, {
    id: '6',
    label: 'Email Results'
  }
]

Links

[
  {
    source: 'start',
    target: '1',
    label: 'links to'
  }, {
    source: 'start',
    target: '2'
  }, {
    source: '1',
    target: '3',
    label: 'related to'
  }, {
    source: '2',
    target: '4'
  }, {
    source: '2',
    target: '6'
  }, {
    source: '3',
    target: '5'
  }
]

Credits

ngx-charts-dag is a Swimlane open-source project; we believe in giving back to the open-source community by sharing some of the projects we build for our application. Swimlane is an automated cyber security operations and incident response platform that enables cyber security teams to leverage threat intelligence, speed up incident response and automate security operations.