private static mxGraphModel getMxGraphModel(String gxml) {
mxCodec codec = new mxCodec();
org.w3c.dom.Document doc = mxXmlUtils.parseXml(gxml);
codec = new mxCodec(doc);
mxGraphModel model = (mxGraphModel) codec.decode(doc.getDocumentElement());
return model;
}
@Test
public void testPng() throws Exception {
String path =
ProcessDefManagerTest.class.getClassLoader().getResource("graphsub.xml").getPath();
String value = FileUtils.readFileToString(new File(path));
mxCodec codec = new mxCodec();
org.w3c.dom.Document doc = mxXmlUtils.parseXml(value);
codec = new mxCodec(doc);
mxGraphModel model = (mxGraphModel) codec.decode(doc.getDocumentElement());
mxGraph graph = new mxGraph();
graph.setModel(model);
BufferedImage image =
mxCellRenderer.createBufferedImage(graph, null, 1, Color.WHITE, true, null);
byte[] ret = null;
ByteArrayOutputStream outputStream = null;
try {
outputStream = new ByteArrayOutputStream();
ImageIO.write(image, "png", outputStream);
ret = outputStream.toByteArray();
FileUtils.writeByteArrayToFile(new File("/Users/lihao/Downloads/graph.png"), ret);
} catch (Exception e) {
e.printStackTrace();
}
}
