Schlagwort: create

Create GraphML XML file with Java

With Blueprints it is very easy to create a XML file following the GraphML standard. All you need is this:

import com.tinkerpop.blueprints.pgm.Vertex;
import com.tinkerpop.blueprints.pgm.impls.tg.TinkerGraph;
import com.tinkerpop.blueprints.pgm.util.io.graphml.GraphMLWriter;
import java.io.FileOutputStream;
import java.io.OutputStream;
 
public class App {
 
  private static final String OUTPUT_FILE = "./res/graph.graphml";
 
  public static void main(String[] args) throws Exception {
    OutputStream out = new FileOutputStream(OUTPUT_FILE);
    TinkerGraph graph = new TinkerGraph();
 
    Vertex source = graph.addVertex("1");
    Vertex target = graph.addVertex("2");
    graph.addEdge("3", source, target, "connection");
 
    GraphMLWriter writer = new GraphMLWriter(graph);
    writer.outputGraph(out);
  }
}

This is what you will get then:

graph.graphml

<?xml version="1.0" ?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns">
  <graph id="G" edgedefault="directed">
    <node id="2"></node>
    <node id="1"></node>
    <edge id="3" source="1" target="2" label="connection"></edge>
  </graph>
</graphml>

Create a link with an image in JavaScript

With JavaScript you can dynamically create every HTML element that you want. Here is an example on how to create a link with an image:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>Create a link with an image in JavaScript</title>
    <style type="text/css">
      .googleImage{ border: 2px solid blue; }
    </style>
  </head>
  <body>  
    <script type="text/javascript">
      // Link
      var link = document.createElement('a');
      link.href = 'http://www.google.de/';
      // Alternative:
      link.setAttribute('href', 'http://www.google.de/');
 
      // Image
      var image = document.createElement('img');
      image.className = 'googleImage';
      image.src = 'http://www.google.de/images/logo.png';
 
      // Create a link with an image inside
      link.appendChild(image);
      // Display the link
      document.body.appendChild(link);
    </script>
  </body>
</html>